Washing water filter - device and principle of operation. Filters with manual backwashing Filter for mechanical water purification with backwashing

General technical data

For this hydrotreating of vacuum gas oil, we recommend several identical filters for long-term operation. While one filter tank is backwashing, the flow is distributed through the others.

We offer identical filter containers according to filter specifications. A backwash receiving tank is also proposed to collect sludge (a mixture of backwashed liquid and solids).

A gas stabilization tank is always used for the filtration process. The gas stabilization tank contains a sufficient amount of compressed gas (usually nitrogen or flammable gas) to perform a full backflush of the housing at high power. The proposal also includes a gas stabilization tank for storing backwash gas.

If the filter is in standby or backwash mode, the tank temperature must be maintained to prevent temperature shock when filtration starts. For this reason, the customer must provide electrical heating. Provides only welded terminals for heat tracing and insulation connections. The insulation is ordered and applied by the Customer.

Taking into account the size of the filter tanks, a beam crane is provided to open the top flange of the tank.

Scope of delivery:

• 4 identical filter containers (see below),
  Each container is equipped
  • 12 sintered mesh filter elements - per filter container (see below),
  • All internal parts are welded, with the exception of the tube sheet with a flanged connection to the body, the base and support sheet.
  • Nozzles and flanges
  • Sealing the flange of the container body
  • Installation bolts and nuts
  • Lifting devices, grounding lugs
  • Nameplate
  • Insulation supports
• backwash receiving tank (see below)
• gas stabilization tank to assist in the complete backwash operation of the housing
• Automation/control system.
  Electrical cabinet/distribution box for local PLC (the operation of the filters is controlled by the PLC located in the ATEX distribution box)
• Instrumentation (see below), boundaries of the Supplier's installation
• Metal structures (structure, platforms, stairs...)
• Pipeline, valves within the Supplier's supply boundary
• Spare parts for installation and commissioning:
  • 4 filter elements incl. seal
  • sealing element kit (200%)
  • 10% bolts and nuts, minimum 1 set per size
• Engineering, completely for electrical heating, piping, valves and instrumentation within the scope of supply of the “Seller”.

Note: Filter units must be assembled, installed and sealed before the technical service engineer arrives to install the elements.

In the event that the technical service engineer determines that the assembly (kit) is inadequate or incomplete and prevents him from completing his task, we reserve the right to withdraw it until the necessary conditions for commissioning have been achieved. Any additional costs associated with this will be borne by the customer.

Technical description of the backwash filter

Process description

The entire filter installation consists of 4 identical filter tanks, 1 backwash receiving tank and 1 gas stabilization tank to provide backwash gas. The backwash cycle is automated.

If the pressure drop across the filter elements reaches the permissible maximum differential pressure, one filter tank is automatically isolated and temporarily removed from the line for the backwash stage. The remaining filters continue to work and filter the entire stream.

For this application, the best solution is the "reverse solution" with a metal backwash filter that contains tubular sintered porous metal plate elements with cells screwed to a tube sheet at the top of the tank (hanging upside down). During operation, the liquid containing solid particles is fed into the filter under the tube sheet (dirty side) and flows from the outside into the filter elements. Solids collect on the outer surface of the elements and the filtrate passes through the elements to the outer surface. After collecting solids on the inner surface of the filter elements, backwashing follows to remove the solids.

With a solids concentration of 200 ppm in the process feed stream, the estimated average operating time to the maximum permissible pressure drop over the filter elements is approximately 6 hours. The backwash flow must be fast to ensure sufficient solids remain concentrated in the filter media. Backwashing begins when the 2-inch automatic ON/OFF valve is opened and the filter volume is evacuated. The entire backwash cycle typically lasts less than 1 hour, which includes the time required to pump out the filtered gas oil, slowly fill the container with soaking fluid (not applicable here), and the time to perform a high-speed oil flush.

Technical notes:

• Combustible gas (for the backwash process) is required for the flammable gas stabilization tank at a minimum pressure of 13 barg;
• Feeding oil is required for filter tanks at a minimum temperature range ( must be reported).
• Impregnation Fluid (if applicable): For maximum operating efficiency, it is recommended to use light recycle gas oil in the filter system to run the saturation cycle after backwash cleaning, if necessary.
• Nitrogen is necessary for flushing containers and pipelines before opening.

Specification of filter containers

Liquid/solid separation filters link the filtration process from the outside to the inside. At the end of each filtration cycle, solids are backwashed with interior wall elements and are released as concentrated sludge. More details on liquid/solid separation filters.

To heat the filter container, it is necessary to provide electrical heating around the container.

Electrical heating and insulation must be provided around the pipe nozzle to prevent instrumentation oil from blocking the pipes when the vessel is in idle mode. This heating, insulation of the container and pipes not included within the scope of supply of this offer.

Painting/Surface Coating

• Inside: carbon steel + 3mm corrosion tolerance
• Painting according to the manufacturer's standard is negotiable.
• Since the material of the container is not stainless steel, chemical cleaning, staining or passivation is not necessary.

Backwash Receptacle Specifications

The filter unit is equipped automatic system backwash. Backwash is controlled by delta P. The cycles are activated when the pressure drop in the filters reaches a certain value of 1.05 bar. A higher delta P allows longer filtration cycle times to be achieved. The receiving container is machined to dimensions suitable for accommodating 2x (duplex) or 3x (triplex) backwash volumes of one filter. The collection tank is emptied after each backwash cycle and has a level control for safety. The backwash slurry is pushed out of the collection tank by compressed nitrogen or fuel gas.

To prevent solids from caking at the bottom of the backwash tank, pumps are often installed to circulate the slurry particles with the fresh cycle oil while the mixture is drained from the tank. Electrical heating is also provided by the Customer on the backwash fluid receiving body to ensure that the oil can circulate without problems.

The backwash receiving tank is designed in accordance with the attached Appendix 1.2 specifications. Design and Manufacturing Code ASME VIII Division 1 Unprinted.

Specifications of gas stabilization tank

A special gas stabilization tank is required to provide sufficient fuel gas at the required pressure to ensure backwashing.

The pressure of the available combustible gas is too high in real time to be injected directly into the filter container. A pressure regulator is needed to lower the pressure. (confirmation required).

The gas stabilization tank is designed in accordance with the specifications of Appendix 1.3. Designed and manufactured to ASME Code VIII Division 1 without printing. The tank is loaded cyclically depending on the backwash cycles and a fatigue stress analysis is provided accordingly.

Filter Element Specifications

The filter elements are made of 1 porous metal pipe (1000 mm long), completely welded. Each filter element has a mounting threaded plug and a closed end plug, as well as gas tungsten welding, specifically on each filter element.

Filter media specification

Filter elements are made of of stainless steel(AISI 316L). The powder particles are bonded by sintering (not a fastener or adhesive) at temperatures well below their melting point, providing a fully cohesive granular structure and forming a durable (rigid) filter media (material). Sintering provides the shape, stability and properties of a self-contained strong structural element.

The pores are mechanically fixed taking into account their size and position, so the medium (material) is dimensionally stable, resistant to changing mechanical loads, and can be used at high temperatures and corrosive environments.

The medium (material) is selected for the following application:
Filter media: 20µ
Material: AISI 316L 1.4404
Maximum operating temperature: 700°C oxidation / 500°C reduction, atmosphere

instrumentation

Instrumentation is designed, calculated and selected in accordance with the standard.

• Each filter container is equipped with the following instrumentation (4-20 mA, HART signal)
  • 2 x Differential pressure sensor / pressure indicator [under and above tube sheet]
  • 1 x Pressure sensor/pressure indicator [at the bottom of the container]
• The gas stabilization tank is equipped with the following instrumentation (4-20 mA, HART signal)
  • 1 pressure sensor/pressure indicator [at the top of the tank]
• The backwash reservoir is equipped with the following instrumentation (4-20 mA, HART signal)
  • 1 x temperature sensor / temperature indicator [at the bottom of the container]
  • 1 x level sensor [between the top and bottom of the tank]
• Flow meters can be provided to monitor the flow distribution of various processes (BW gas, hot feed that needs to be filtered).
• The entire instrumentation is not mounted in direct proximity to the tank, but rather the sensors are located at a distance from it for mounting and ergonomic reasons.
• The entire instrumentation is connected to distribution boxes. Separate distribution boxes are provided for each cable category. Terminals supplied are clip-on type and numbered.
• The backwash filter is automatic and PLC controlled. This PLC is installed in the electrical cabinet and interfaces with the PCA (optional).

			quantity - 2 pcs.
Working fluid
Heavy coking gas oil
	min	normal	Max
productivity, m³/h		31,3
operating temperature, °C		90
operating pressure (pressure), MPa (g)		16,52
density (at 15°C)		946
moving specific gravity		0,893
viscosity, cP		3,51
Filterable solids
	min	normal	Max
concentration of solid particles, ppm			200
bulk density of solid particles, kg/m³	800
filtering requirement	99.9% more than 20 microns
backwash fluid
	min	normal	Max
working fluid
productivity, m³/h		1
operating temperature, °C		90
working pressure, MPa (g)		15,5
density, kg/m³		0,893
viscosity, cP		3,51
operational data
	min	normal	Max
pressure drop - initial, net, MPa		0,141
pressure drop - dirty, MPa		1,05
max permissible pressure drop, MPa	3,16
working cycle time, h	6
cake thickness, mm		4,1
backwash type	whole body, shell
backwash pressure/liquid, MPa (g)	4
filter housing design data
	ASME VIII Div.1
	20,19
cyclic loads / service life	yes, 20 years
pressure cycle	Capacity: 0-16.52 / 0-4 barg, 4 rubles/day, 20 years tube sheet: 0-1 bar, 4 rubles/day, 20 years.
design temperature, °C	120
corrosion tolerance, mm	3
corrosion tolerance on tube sheet, mm	2 x 3
radiographic flaw detection	according to standards
thermal insulation	provided by the customer
Dimensions/weight of filter housing
Overall dimensions, mm	internal diameter 279 x length 1620 mm
	350
filter model	quadruplex
gas bag height, mm	300
liquid height, mm	1320

connection nozzles
	designation	diameter	nom. pressure	flange type
technological entrance	A	2“	300#	flange RFWN
filtrate output	AT 2	2“	300#	flange RFWN
sludge output	WITH	2“	300#	flange RFWN
fuel supply gas	E	1 1/2“	300#	flange RFWN
filing VAT	D	1 1/2“	300#	flange RFWN
level	L1, L2	1 1/2“	300#	flange RFWN
temperature	T1	1 1/2“	300#	flange RFWN
pressure	P1, P2	2“	300#	flange RFWN
fan/drain	V	1“	300#	flange RFWN

Filter housing production data
shell-cone, roof, tube sheet, flange, nozzles, container (no contact with liquid)	carbon. steel
	A 193 B7 / A 194 Gr. 2H
body flange seal	bent profile AISI 316 / graphite
nozzle seals
Heating jacket
heating type shirts	electric heating
required temperature, C	90
Filter element data
type	porous metal powder graduation
number of filters, pcs	4 x 12
diameter (external/internal)	50.8 x 46
pore length, mm	1000
filter material. environment	AISI 316L
metal parts material	AISI 316
element seal	threaded NPT
total filtrate area/filter, m2	4 x 1.91
Auxiliary equipment
instrumentation	Yes
PLC	Yes

Filter system specifications
application: diesel hydrotreating			quantity - 1 pc.
Duplex filter backwash system
Process fluid
	min	normal	Max
working fluid	filtered feed liquid
productivity, kg/s		8
slave temperature, °C		90
slave pressure (pressure), MPa(g)		15,5
density (at 15°C)		0,893
viscosity, cP		3,51
Backwash tank design data
design standards (i.e. ASME)	ASME VIII Div.1
design pressure, MPa (g)	6
design temperature, °C	120
corrosion tolerance, mm	3
thermal insulation	provided by the customer
Dimensions/weight of backwash receiving tank
Overall dimensions, mm	internal diameter 337 x length 2830 mm
total weight incl. internal parts, kg	350 (to be confirmed)

Backflush hopper production data
shell, head, feet/supports, attachments	carbon steel
head type	2:1 elliptical head
material of flange bolts and nuts	A 193 B7 / A 194 Gr. 2H
cover seal material	spiral wound AISI 316 / graphite
Heating jacket
heating jacket	yes, provided by the customer
heating type shirts	electric heating jacket
Auxiliary equipment
instrumentation	Yes

Filter system specifications
application: diesel hydrotreating			quantity - 1 piece
type: gas stabilization tank
	min	normal	Max
working gas	fuel gas
slave of the subject, C		42
slave pressure, MPa (g)		13,5
viscosity, sP		0,02
Gas stabilization tank design data
design standards (i.e. ASME)	ASME VIII Div.1
design pressure, MPa (g)	16
yes, 20 years
design temperature, °C	80
corrosion tolerance, mm	3
thermal insulation	provided by the customer
shell, head, container not in contact with the medium	carbon steel
head type	2:1 elliptical head
paws/supports	A 106 Gr. B
flange	A 105 SA
container seal	stainless steel / graphite
Auxiliary equipment
instrumentation	Yes

The main reason for the breakdown of plumbing equipment and household appliances in our homes - this is low quality tap water. Water flowing through many kilometers of main pipelines collects scale, sand, clay, hemp fibers, etc. along its path. It’s good if the muddy, rusty flow of water does not clog your taps. In the best case, small, stunted streams of water will continue to flow from the tap for some time, in the worst case, you will have to change all the plumbing fixtures at once, which costs a pretty penny. Unfortunately, the situation with rusting pipelines will not soon change for the better, because according to independent experts in Moscow, more than half of all main pipes need to be replaced, average term whose service life is 40 years. In other cities the situation is much more dire. But replacing all the pipes in an apartment or even a whole house will not help. Therefore, mechanical impurities settling inside pipelines lead to their premature corrosion. Owners of individual water supply sources (wells, wells) also cannot do without mechanical purification of water, which comes with particles of sand or clay and leads to the gradual deterioration of expensive plumbing fixtures. What to do in this situation? It turns out that plumbing equipment (showers, faucets, especially imported ones), washing machines and dishwashers will continue to break down due to poor quality water? But there is a way to deal with dirty water - before installing a sink, bathtub, toilet or other plumbing or household appliances on water pipes It is imperative to install mechanical cleaning filters. They will protect your equipment from dirt and save your nerves.

Mesh (wash) filters for mechanical water purification are designed to remove suspended particles, sand, silt and mud deposits from water. This allows you to significantly extend the life of your home's water supply system and plumbing equipment. Wash filters consist of a filter element (metal mesh) enclosed in a flask made of durable material (plastic or brass). Mechanical impurities accumulate on the filter mesh and at the bottom of the bowl, and are easily removed when the washing mode is turned on. During the washing process, the water flow captures mud deposits, which are removed either into a substitute container or into the sewer. Naturally, having bought the simplest and most inexpensive washing filter, you will have to take control of the degree of contamination of the filter element and promptly rinse and clean the mesh. The operation of disassembling and cleaning the filter is not very labor-intensive, but it is dirty and requires free time. Therefore, the choice of the mechanical cleaning cartridge filter you need should be based on the tasks that need to be solved, and, of course, on your financial capabilities. To find out what degree of purification you need, pay attention to the technical documentation of devices connected to tap water. For example, for most plumbing and household equipment, a cleaning degree of 100 microns (microns) is suitable, but if you have expensive imported plumbing (jacuzzi, waterfall faucets, etc.), then it is better to take care of finer mechanical cleaning.

There are wash filters from various manufacturers on the market, such as Italian filters R.B.M., ITAP, VALTEC and etc.

We recommend washing filters for mechanical cleaning from the German manufacturer HONEYWELL(produced at the BRAUKMANN plant in Germany). HONEYWELL is a world leader in the development and implementation of latest technologies in the field of space exploration, aircraft construction and the creation of new materials. Made with traditional German quality, the filters feature impact resistant material flasks, durable stainless steel filter meshes and tight fitting seals and connections. The degree of filter purification depends on the mesh size of the mesh used in Honeywell filters, which can be from 20 to 500 microns. The standard kit includes a mesh with a mesh size of 100 microns. The smaller the cell, the better the degree of purification. Our company offers automatic washing filters and manual washing. It is possible to use dirt filters in front of Honeywell fine wash filters, which extend the life of the filter components.

Which HONEYWELL wash filters should you choose?

For mechanical water purification, wash filters are usually installed in apartments and offices. with direct-flow flushing Honeywell FF06 or Honeywell FK06, additionally providing protection against water hammer, pressure surges, pressure drops of cold and hot water.

Flush filter Honeywell FF06

The Honeywell FF06 filter is the simplest and most compact filter from the MiniPlus series. It is used in almost all cases where cleaning from sand, scale, rust and other mechanical impurities is necessary and there are no problems with exceeding the inlet pressure in the pipeline. The FF06 filter fully complies with the current KWT regulations. The size of the mesh cells in the filter ranges from 50 to 100 microns. The filter body for cold water is made of transparent impact-resistant plastic; a flask made of brass, resistant to dezincification, is used to filter hot water. The operating pressure of the FF06 filter is from 1.5 to 16 Atm, the operating temperature is up to +40 0C. Filters for hot water are marked with the last letter “M”. Connecting dimensions of the FF06 filter: ½”, ¾”, 1″. Direct-flow washing mode is activated by simply turning the knob ball valve, and the dirt accumulated in the flask is washed out with a stream of water directly into the supplied container or into the sewer. A special feature of this filter is that it has not only an external thread on the connecting fittings, but also an internal thread on the filter housing. This filter, with its compact dimensions, is designed for installation in places with limited free space. This filter can also be used to filter compressed air, gas and non-aggressive liquids.

Flush filter Honeywell FK06

The Honeywell FK06 filter is a small and compact filter with a miniplus series gearbox, which has the following important advantage - the pressure reduction valve built into the filter reliably protects against pressure surges in the water supply network and saves water consumption. The FK06 filter complies with the requirements of the current DIN/DVGW standards. The size of the mesh cells in the filter is from 50 to 100 microns, the input pressure adjustment is from 1.5 to 6.0 Atm. If necessary, the mesh and filter flask can be easily replaced without dismantling it. The operating pressure of the FK06 filter is from 1.5 to 16 Atm, the operating temperature is up to +40 0C. Connecting dimensions of filter FK06: ½", ¾", 1″. Additionally, these Honeywell filter models can be equipped with an M07K pressure gauge. For this purpose, the filter housing is equipped with connections for connecting a pressure gauge, with which you can visually monitor the inlet pressure. For ease of installation of the FK06 filter, the pipes are located on both sides. The direct-flow washing mode is activated by simply turning the handle of the ball valve, and the dirt accumulated in the flask is washed out with a stream of water directly into the supplied container or into the sewer. The small dimensions of the FK06 filter allow this combination filter to be installed in places with limited space. The use of such wash filters is very important for the protection of plumbing equipment, water heaters and household appliances.

For mechanical cleaning in country houses or factories, Honeywell F74C or Honeywell F76S backwash filters are usually installed. When washing the mesh in mesh filters with reverse flushing (as opposed to filters with direct flushing), water does not simply wash away mechanical impurities, but cleans the mesh, acting in the opposite direction in relation to water filtration, pushing out all mechanical impurities stuck between the mesh cells and on bottom of the flask.

Flushing filter Honeywell F74C

Mechanical water purification filter Honeywell F74C with backwash, based on the patented HABEDO ® unit, provides a continuous supply of filtered water, preventing foreign bodies from entering the water main. The presence of a rotatable flange connection on the Honeywell F74C flushing filter allows it to be installed with the bowl downward both in a horizontal section of the water supply system and in a horizontal one. The stainless steel mesh cells of this filter can be of three sizes: standard configuration F74C-AA(with 100 micron mesh), and also F74C-AC(with 50 µm mesh) and F74C-AD(with 200 micron mesh). The filter bowl (housing) is made of transparent impact-resistant synthetic material, which allows you to visually check the filter for contamination. The operating pressure of the F74C filter is from 1.5 to 16 Atm, the operating temperature is up to +30 0 C. The connecting dimensions of the F74C filter are: ¾" or 1". The filter design provides for automation of the activation of backwashing of the Honeywell F74C wash filter by installing or Z74. The F74C filter kit includes an M07K pressure gauge. The Honeywell F74C-ZA filter, while maintaining all the main performance characteristics, is the most simplified version of the F74C filter. The F74C-ZA model does not have a decorative blue cover, a drainage fitting, a reminder ring for flushing reminders and a pressure gauge (there is a socket for its connection). This filter comes with only one connection size - ½".

Flush filter Honeywell FK74C

Combination filter Honeywell FK74C with backflushing has a rotating connection element and a pressure reduction valve that ensures a continuous supply of filtered water. A fine filter (mesh size 50, 100 or 200 microns) removes mechanical impurities such as rust, fibers, scale, etc. The rotating connecting flange allows installation in confined spaces on horizontal and vertical sections of the pipeline. The pressure reduction valve in the filter prevents excess pressure and reduces water consumption. The Honeywell FK74C combination filter is installed with the bowl facing down in systems where a pressure reduction valve is required. The operating pressure of the FK74C filter is from 1.5 to 16 Atm, the operating temperature is up to +30 0 C. The pressure setting range is from 1.5 to 16 Atm. The connecting dimensions of this filter are as follows: ¾" or 1".

Flush filter Honeywell F76S

Backwash water purification filter Honeywell F76S, created using the patented HABEDO ® unit, ensures a constant supply of filtered water and protects consumers from the penetration of mechanical particles - rust, sand, scale, etc. The F76S filter complies with the current DIN/DVGW and KWT standards. Honeywell F76S stainless steel mesh cells can be of the following sizes: 20, 50, 100, 200, 300 or 500 microns. The filter housing for cold water is made of transparent impact-resistant material, and for hot water – of red bronze. The operating pressure of the F76S filter for cold water is from 1.5 to 16 Atm, the operating temperature is up to +40 0 C. For hot water, the operating pressure of the F76S filter is from 1.5 to 25 Atm, the operating temperature is up to +70 0 C. Filters for hot water have the last letter “M” in their name. Filter connection dimensions F76S: ¾", 1", 1.25", 1.5" or 2". The Honeywell F76S flush filter can be modified by installing automatic flushing drive Z11 or Z74, and

Flush filters Honeywell F76CS and FK76CS

Honeywell F76CS Suitable for modification and improvement of existing water supply systems. The F76CS flushing filter has a rotating connecting element that allows installation in limited spaces on horizontal and vertical sections of the water supply network. The connecting dimensions of this filter are as follows: ¾", 1", 1.25".
If it is necessary to adjust the outlet pressure in the system within the range from 1.5 to 6.0 atmospheres, you can use a combined flushing filter Honeywell FK76CS. The FK76CS Backwash Filter is especially useful for retrofitting or upgrading existing water systems where existing filters need to be replaced. The presence of a rotary connecting element and a pressure reduction valve in this filter makes it a very effective water treatment tool. The connecting dimensions for the Honeywell FK76CS filter are the same as for the Honeywell F76CS: ¾", 1", 1.25".

Flush filter Honeywell HS 10S

If your approach to mechanical cleaning is serious, you do not intend to spend personal time on filter maintenance, and are guided by the principle of “maximum possibilities,” then your choice is a flush filter with backflushing and pressure reducing valve Honeywell HS 10S. Combining various functions in one compact housing, this filter is unrivaled among wash filters for mechanical water purification. The HS10S filter complies with the requirements of the current DIN/DVGW and KWT standards. Depending on the mesh size, the Honeywell HS 10S mesh filter retains particles from 20 to 500 microns. The filter bowl for cold water is made of transparent impact-resistant synthetic material, and for hot water – of red bronze. The operating pressure of the HS 10S filter for cold water is from 1.5 to 16 Atm, the operating temperature is up to +40 0 C. For hot water, the working pressure of the HS 10S filter is from 1.5 to 25 Atm, the operating temperature is up to +70 0 C. Hot water filters have the last letter “M” in their designation. Filter connection sizes F76S: ½", ¾", 1", 1.25", 1.5" or 2". The pressure reduction valve built into the filter prevents surges and pressure drops in the water supply system to protect plumbing and household equipment, saving water consumption. The check valve protects the water supply from back pressure and back flow. A fast and effective backwash system with a jet turbine, which, rotating with powerful directed jets of water, knocks out mechanical particles stuck in the cells of the filter mesh. A great way to forget about the tedious cleaning of a clogged mesh. Plus, this filter has a shut-off valve that shuts off the incoming water if necessary, and a reminder ring at the bottom of the filter will remind you of the next flush. To evaluate the cleaning efficiency and control the pressure, two pressure gauges are installed at the filter inlet and outlet. If the inlet pressure drops, the filter must be flushed. To avoid backwashing manually, you can optionally connect the Honeywell HS 10S filter to automatic flushing drive type Z11 or Z74. This device, upon detecting a difference in water pressure in the filter, or in accordance with a set time interval, automatically begins backwashing, thereby achieving maximum filter efficiency. To do this, you just need to insert the drive power plug into an electrical outlet (220 V), and the microprocessor device will take care of the operation of the filter. The Honeywell HS 10S mesh filter with backwash drive is so reliable that you can simply forget about it and enjoy the perfect operation of your plumbing equipment.

If you have expensive plumbing ( hydromassage bath, shower cabin, washing machine and dishwasher), then it is better to use Honeywell F74C or Honeywell F76S or Honeywell HS 10S wash filters for mechanical water purification. If you have an ordinary bathtub and simple plumbing, then you can get by with Honeywell FF06 or Honeywell FK06 MiniPlus series filters.

• With swivel flange

The principle of operation of Honeywell filters with direct-flow flushing

The principle of operation of wash filters with direct-flow washing is similar to the operation of cartridge filters: during filtration, all mechanical impurities are retained by the filter element (mesh), and water purified from mechanical impurities is supplied to the consumer. But there is also a significant difference from cartridge filters - the cartridge does not change, but is washed with untreated water (it is not necessary to disassemble the filter housing). With proper use of the wash filter and taking into account the characteristics of the water being filtered, the filter mesh usually lasts for 1-2 years. Direct flush filters have a drain hole at the bottom that is opened using a ball valve. A drainage fitting is installed in the ball valve, to which a flexible hose or plastic pipe is connected. When washing the filter, the ball valve of the drainage hole opens, and water washes away the mechanical impurities deposited from the filter mesh. In order to extend the service life of the filter mesh, it is recommended to periodically (after 5-6 washes) disassemble the filter and rinse the mesh and flask more thoroughly with a brush, since water removes mechanical impurities from the surface of the mesh, and particles stuck between the mesh cells remain intact.

How Honeywell backwash filters work

Honeywell Braukmann has its own patented backwash technology, which allows you to provide the consumer with a constant supply of filtered water, even while the strainer is being backwashed. The backwash filter mesh consists of a main lower section and an additional upper section. In filtration mode, the upper section is closed and water flows through the large lower section from the outside to the inside. When the ball valve is opened, the filter backwash mode is activated, in which the entire mesh element moves down. In this position, the flow of water stops and it begins to pass through the small upper section, where, after cleaning, the water flow is divided into two: one to consumers, the other for backwashing. The backwash flow spins the turbine and, passing through it with acceleration, cleans the lower section of the strainer from the inside out. Thus, the main lower section is completely cleaned over the entire surface of the mesh under incoming pressure. After closing the ball valve, the flush filter automatically returns to filtration mode.

The built-in pressure reduction valve operates on the principle of force equalization. The pressure force of the diaphragm in the filter is balanced by the pressure force of the adjusting spring. This means that the pressure at the outlet of the filter increases until the forces of the diaphragm and the adjusting spring, acting in counterbalance, are balanced. The amount of inlet pressure does not affect the opening or closing of the valve. Therefore, changing the inlet pressure has no effect on the outlet pressure. While backwashing the filter, clean water continues to flow to consumers.

Washing the mesh can be done either manually or automatically. In the manual version, there is an indicator to remember the date of the next flush. With automatic flushing, the drive can be started either in accordance with a preset time interval or based on the pressure drop in the flush filter or other external control signal.

What is the difference between forward and reverse flushing?

In the process of direct washing, water only washes the walls of the filter element and the filter bowl. This means that all the dirt collected in the flask will be washed away, but foreign bodies clogged in the mesh cells cannot be removed. Over time, when direct washing, the filter mesh will become clogged and the filter efficiency will decrease. You will have to change the mesh, which is associated with additional costs and filter downtime.

During backwashing, water flows through the filter element in the opposite direction. Moreover, it does not just flow, but swirls with the help of a special impeller, and under pressure knocks out foreign particles stuck in the mesh. Consequently, the backwash process significantly increases the service life of the filter mesh.

• The filter can be mounted on both metal and plastic pipes;
• The device is installed exclusively on a horizontal section of the water supply with the bowl facing down.(this allows for maximum filtration efficiency);
• Mounted after the water meter and shut-off valves in accordance with the requirements of DIN 1988, part 2(this makes it possible to service the filter without removing it from the pipeline);
• Provide easy access to the wash filter for contamination monitoring, pressure gauge readings and maintenance;
• It is recommended to leave a straight stabilizing section of the water supply system after the combined filter with a length of at least five times the nominal connection size.

Modifications of HONEYWELL-BRAUKMANN wash filters:

• With stainless steel mesh size 20, 50, 100, 200, 300, 500 microns;
• In a transparent case for cold water(pressure range from 1.5 to 16 Atm, operating temperature - up to 40 0 ​​C);
• In brass body for hot water(pressure range from 1.5 to 25 Atm, operating temperature - up to 70 0 C);
• With and without pressure reducing valve(valve, reducing water pressure);
• With forward and reverse flushing;
• With connecting threads from ½" to 2";
• With swivel flange(for installation on both horizontal and vertical pipes).

TO advantages of wash filters This includes constant highly efficient water filtration, washing the filter mesh without disconnecting from the water supply, and there is no need to periodically replace the filter element.

Disadvantages of wash filters– require connection to the sewer network.

Wash filters for purifying water from mechanical impurities HONEYWELL-BRAUKMANN –
the best protection for your plumbing and household appliances!!!

Pressure reduction valve Honeywell D05

Model Honeywell D05– an inexpensive and reliable option for a pressure reducing valve. The outlet pressure of this valve is adjusted using a handle and controlled by a pressure gauge installed in the place provided in the body. The operating inlet pressure of valve D05 is up to 25.0 Atm, the outlet pressure is adjustable from 1.5 to 6.0 Atm. The operating temperature of the valve is up to +80 0 C. Connecting dimensions of the Honeywell D05 pressure reduction valve: ½" or ¾". This valve does not have a water strainer, so it is recommended to install it only after a pre-installed mechanical cleaning filter.

Pressure reduction valve Honeywell D06F

Pressure reduction valve (reducing valve) Honeywell D06F protects the water supply network and domestic water supply installations from excess pressure. With this valve, you can easily maintain a constant pressure value, which is set by turning the knob with a scale printed on it. The outlet pressure can be monitored using a pressure gauge by connecting it to the connections provided in the valve body. The pipes are located on both sides, which facilitates installation of the valve. The valve also includes a stainless steel strainer with a mesh size of 0.16 mm. The operating inlet pressure of the D06F valve is up to 25 Atm, the outlet pressure is adjustable from 1.5 to 6.0 Atm, from 1.5 to 12.0 Atm (for the model D06FH), from 0.5 to 2.0 Atm (for the model D06FN). Operating temperature for a filter with a transparent impact-resistant bowl (index A) – up to +40 0 C, in a brass housing – up to +80 0 C. Connecting dimensions of the Honeywell D06F pressure reduction valve: ½", ¾", 1″, 1.25″ , 1.5″ or 2″.

Filter insert Honeywell FN09S

Fine filter with backwash Honeywell FN09S Designed for modification of existing D06F pressure reduction valves. With a modified version, the pressure reducing valve performs the same functions as the Honeywell FK76CS combined filter. This fine filter FN09S prevents the penetration of foreign particles, rust, sand, etc. The filter fully complies with the requirements of current DIN/DVGW standards. Honeywell FN09S filter mesh sizes can be: 20, 50, 100, 200, 300 or 500 microns. The filter bowl is made of impact-resistant transparent plastic. The operating pressure of the FN09S filter is from 1.5 to 16 Atm, the operating temperature is up to +40 0 C. The Honeywell FN09S filter insert can be modified by installing automatic flushing drive Z11 or Z74, and differential pressure switch DDS76.

Honeywell Z11AS and Z11S automatic flushing drives

Honeywell Z11AS provides automatic activation of the backwash system for strainer models F74C, F76S, HS10, FN09. The backwash duration is approximately 25 seconds. Water consumption for washing is required from 12 to 35 liters. When installing the drive, the flushing filter must not be under pressure. The drive has a threaded ball valve connection with a diameter of ½" ( Z11AS-1/2A), or 1″ ( Z11AS-1A) for use in conjunction with industrial flange water filters series F76S-F. It is possible to set one of 16 values ​​for the washing response time interval from 4 minutes to 3 months, depending on the degree of contamination of the filter mesh. This is the only backwash actuator that comes into contact with water.

Automatic backwash drive Honeywell Z11S has a bayonet connection to water filters and provides automatic backwashing for mesh filters models F74C, F76S, HS10, FN09. The flushing time is approximately 25 seconds. Water consumption for backwashing requires from 12 to 35 liters. When installing the drive on a flush filter, the standard switch must be disconnected, and the filter must not be under pressure. The ability to set a time interval can be from 4 minutes to 3 months. The automatic flushing drive does not interact or come into contact with water.

Factory valve adjustment corresponds to 45 days. In the event of a power outage, it is possible to connect four AA batteries for uninterrupted operation. Battery life is no more than three years. The flushing interval is set by successively pressing the buttons located on the rear cover of the drive. The first indicator light shows the time remaining until the next programmed rinsing process. The second indicator light shows the number of backwash cycles already completed (wash counter). If necessary, the counter can be reset. There is also a button to switch the drive to manual flushing mode. In addition, it is possible to connect devices remote control and control (“smart home”), or differential pressure switch. The operating characteristics are as follows: relative humidity from 5 to 90%, operating temperature from 0 to 50 0 C. Power - 0.01 kW, protection class IP 55 (protection from water and dust), connection - 200 V, 50/60 Hz.

Honeywell Z74A automatic flush drive

Automatic backwash drive Honeywell Z74A has a bayonet connection to the wash filters. Used for filters F74C, F76S, HS10, FN09. To install the Z74A actuator, you must disconnect the original flush filter switch. The time interval is set using switches, to access which you need to disconnect the drive from electrical network and unscrew the back cover. You can set the time interval from 4 minutes to 3 months. There is no indication of the selected washing mode. The Z74A automatic flush drive does not interact or come into contact with water.

Honeywell DDS76 differential pressure switch

Differential pressure switch Honeywell DDS76 controls the backwashing process in F76S wash filters in conjunction with the Z11 or Z74 automatic wash drive. The relay compares the pressure level before and after the mesh insert of the wash filter and, if the set value is exceeded, activates the backwash drive. To install the relay, first unscrew the plug and pressure gauge from the top of the filter. The relay housing is made of high quality plastic. The differential pressure setting is adjusted using a knob on a scale from 0.1 to 1.6 Bar (recommended value - 0.5 Bar). The maximum operating pressure is 16.0 Atm, the operating temperature of the valve is up to +80 0 C. Maximum load on the microswitch: Umax = 24 V, Imax = 0.8 A, Pmax = 19.2 W. Connecting dimensions of the differential pressure switch DDS76: ½", 1 or 1½".

Pressure gauge Honeywell M07K

Pressure gauge Honeywell M07K has the following pressure measurement ranges: from 0 to 4 Bar, from 0 to 10 Bar, from 0 to 16 Bar, from 0 to 25 Bar. Used for installation in filters FK06, F74C, FK74C, F76CS, FK76CS and pressure reduction valve D06F. The M07K gauge has a ¼" end thread connection and the M38K gauge has a ¼" radial thread connection.

• With stainless steel mesh size 20, 50, 100, 200, 300, 500 microns;
• In a transparent case for cold water(pressure range from 1.5 to 16 Atm, operating temperature - up to 40 0 ​​C);
• In brass body for hot water(pressure range from 1.5 to 25 Atm, operating temperature - up to 70 0 C);
• With and without pressure reducing valve(valve, reducing water pressure);
• With forward and reverse flushing;
• With connecting threads from ½" to 2";
• With swivel flange(for installation on both horizontal and vertical pipes).

TO advantages of wash filters This includes constant highly efficient water filtration, washing the filter mesh without disconnecting from the water supply, and there is no need to periodically replace the filter element.

Disadvantages of wash filters– require connection to the sewer network.

Wash filters for purifying water from mechanical impurities HONEYWELL-BRAUKMANN –
the best protection for your plumbing and household appliances!!!

Flange flush filter Honeywell F76S-F

Flange filter Honeywell F76S-F with backwash designed for water filtration in installations with high water consumption. This flushable water filter can be used in large residential buildings, central water supply installations, as well as commercial and industrial enterprises. The F76S-F flange filter features the same efficient backwash filtration system as the family fine filter series. The use of this filter in the system prevents the penetration of mechanical impurities such as rust particles, hemp fibers, sand and scale. The F76S-F filter is made of RG5 red bronze and has a stainless steel mesh with mesh sizes of 50, 100, 200 or 500 microns. It is possible to replace the entire flange filter or the mesh element separately. It is recommended to install a filter in supply systems drinking water directly after the water meter. The Honeywell F76S-F filter can be equipped with automatic backwash drive Z11AS And differential pressure switch DDS76.

Features of F76S-F Backflush Flange Filter:

• Patented backwash system(the filter is completely cleaned of impurities with a small amount of water);
• Easily modified by installing a backwash drive;
• It is possible to install a differential pressure switch for indirect monitoring of the degree of contamination of the mesh element;
• In normal mode, the backwash filter is closed;
• The use of red bronze as the filter housing material provides a high degree of anti-corrosion protection.

Corner strainers Honeywell FY69P and FY71Y

Corner strainer Honeywell FY69P With flange connections used in commercial and industrial enterprises, as well as in large residential buildings and central water supply systems. This FY69P filter protects systems from corrosion damage caused by weld particles, metal shavings, rust, etc., extending the life of downstream equipment. The filter has a Y-shaped body and is made of gray cast iron GG25. A double stainless steel mesh with a cell size of 0.5 mm is used as a filter element. The working medium can be water, oil, compressed air or steam. The operating pressure of the FY69P strainer for water and oil is up to 16.0 Atm, for steam – up to 6.0 Atm. Operating temperature up to +150 0 C. Connecting dimensions of filter FY69P: from DN15 to DN200.

Corner strainer Honeywell FY71Y with flange connections made of cast steel. This filter ensures operation of various non-aggressive environments at pressures up to 40.0 Atm and maximum operating temperatures up to 200 0 C.

Features of FY69P and FY71Y strainers:

• Low resistance to medium flow(thanks to the successful hydrodynamic design of the hull);
• Interior and exterior powder coating using non-toxic, safe synthetic polymer;
• The use of double stainless mesh ensures good corrosion resistance;
• Large surface area of ​​the mesh ensures high removal of contaminants;
• Filtered particles and condensate are easily washed out when the plug is removed(when used in compressed air systems).

Honeywell D15P Flanged Pressure Relief Valve

Pressure reduction valve Honeywell D15P with flange connection in a standard housing protects installations from excess pressure from the water supply source. It can be used in both domestic and commercial installations, as well as industrial facilities within technical characteristics. Installing a D15P pressure reduction valve prevents equipment failure due to pressure surges and reduces water consumption. The pressure set at the inlet remains unchanged even with significant fluctuations in pressure at the inlet of the mains, while the noise of the water flow is reduced to a minimum. The D15P valve body is made of GG25 cast iron. Working medium: water, nitrogen or oil-free compressed air. The operating inlet pressure of the D15P valve is up to 16.0 Atm, the outlet pressure is adjustable from 1.5 to 8.0 Atm (for D15P DN200 - from 1.5 to 6.0 Atm). The operating temperature of the valve is up to +70 0 C. Connecting dimensions of the valve D15P: from DN50 to DN200. It is recommended to install this pressure reduction valve only after a mesh filter for mechanical water purification. Has a pressure reduction valve modification Honeywell D15NP in a low-pressure housing, the output pressure of which is regulated from 0.2 to 2.0 Atm.

Pressure reduction valve Honeywell D17P with flange connections in a standard body made of GGG40 spheroidal cast iron. This filter ensures operation of various non-aggressive media at pressures up to 25.0 Atm, the output pressure is adjustable from 1.5 to 8.0 Atm (for D17P DN200 - from 1.6 to 6.0 Atm). Maximum operating temperature up to 70 0 C. Has one output pressure gauge.

Features of pressure reduction valves D15P and D17P:

• Non-retractable outlet pressure adjustment rod and position indicator on top of the spring(except for valve DN 200 mm);
• The adjusted spring has no contact with water;
• Available with input and output pressure gauges or only output pressure gauge(for valve DN 200 mm);
• Powder coating inside and outside the valve is physiologically and toxicologically safe.

Modifications of HONEYWELL-BRAUKMANN wash filters:

• With stainless steel mesh size 20, 50, 100, 200, 300, 500 microns;
• In a transparent case for cold water(pressure range from 1.5 to 16 Atm, operating temperature - up to 40 0 ​​C);
• In brass body for hot water(pressure range from 1.5 to 25 Atm, operating temperature - up to 70 0 C);
• With and without pressure reducing valve(valve, reducing water pressure);
• With forward and reverse flushing;
• With connecting threads from ½" to 2";
• With swivel flange(for installation on both horizontal and vertical pipes).

TO advantages of wash filters This includes constant highly efficient water filtration, washing the filter mesh without disconnecting from the water supply, and there is no need to periodically replace the filter element.

Disadvantages of wash filters– require connection to the sewer network.

Honeywell backwash filters: innovative water treatment

In the Filter-Russia online store you can purchase innovative Honeywell filters with backwashing. Produced using patented German technology, such filters not only help to completely remove harmful impurities, but also protect water-consuming devices from a sharp increase in pressure in the system. Self-cleaning filters are a guarantee of reliable and high-quality drinking water purification!

TECHNOLOGICAL FEATURES OF HONEYWELL SELF-CLEANING FILTERS

Honeywell self-cleaning filters are used for fine mechanical purification of water for consumption. Filters of this type purify water using mesh membranes made of stainless steel. The quality of water purification is determined by the size of the filter mesh cells, which vary from 20 to 500 microns.

The main elements in the design of a Honeywell self-cleaning filter:

• a housing equipped with a pressure gauge to monitor the pressure in the system;
• threaded external connections for convenient and easy installation;
• a transparent flask, thanks to which you can monitor the degree of contamination of the mesh;
• drain fitting equipped with a ball valve;
• turbine, thanks to the high rotation speed of which the filter is cleaned.

Filter rinsing can be done either manually or automatically. Equipment for automatic cleaning of the mesh membrane and the bottom of the flask is installed additionally. Honeywell filters can be used to purify cold or hot water (such models are equipped with brass flasks).

Fine cleaning equipment from the German company Honeywell is suitable for installation in all types of water supply systems. In combination with pressure reducing valves that maintain water pressure at a constant level, mechanical filters operate almost silently.

HOW TO CHOOSE A HONEYWELL SELF-CLEANING FILTER?

Filters with backwash systems from Honeywell have different capacities (from 1.8 to 21.2 m3/hour), withstand different maximum pressures (16 - 25 bar), and are also designed to work with water of different temperatures. Thus, the choice of filter is influenced by the volume of daily water consumption, as well as the purpose of its use. Contact the Filter-Russia store staff and we will help you choose the optimal Honeywell filter!

In the field of water treatment and purification, there is one very serious problem - any filter material periodically becomes clogged, which means it needs to be replaced or cleaned (regenerated).

In order to minimize the cost of cartridges or bulk material, self-cleaning water filters have been developed.

Such systems are so far capable of purifying liquid only from mechanical particles. Some industrial models can regenerate the properties of bulk filter materials to a greater extent by washing them under pressure.

This approach significantly increases the service life of the backfill material and the operation of the filter as a whole.

Types of self-cleaning filters

Currently, the range of most companies offering water treatment products includes the following types of self-cleaning filters:

1. With manual washing. Here the manufacturers assume by “ manually washing" both the physical removal of the filter element with its washing outside the housing, and the cleaning procedure without disassembling the housing, and sometimes even without stopping the water supply in the mains (if the pressure for washing is sufficient to ensure that the surface of the filter element is cleaned).
2. With semi-automatic washing system. “Semi-automatic” here consists of manually starting the automatic cleaning process. The cleaning itself can proceed differently, depending on the type of filter element and technical solutions applied by the manufacturer.
3. With automatic flushing. The most advanced and, as a result, expensive solutions. Here, the cleaning process can be initiated without human intervention, for example, if a contamination sensor is triggered or a timer simply triggers according to a predetermined schedule (schedule).

The last two types (semi-automatic and automatic) of self-cleaning filters are most often used in main high-load water supplies.

These are productive water treatment and water purification complexes, for example, for servicing large swimming pools, equipping any production enterprise, connecting entire cottage villages to the water supply, etc.

Self-cleaning filters may differ in the housing material.

They are manufactured:

1. Made of plastic (high or low pressure polypropylene);
2. Made of metal (brass, bronze, steel, etc.).

The following can act as a self-cleaning element:

1. Disc elements that, under pressure, form a monolithic porous structure;
2. A mesh surface made of plastic or metal with a given mesh size;
3. Backfill material, which, under pressure in the same way as the disk version, is compacted, forming a homogeneous material with pores for water.

If we talk about household self-washing filters, then most often discs and meshes are used as the filter element; they are easier to maintain and more durable.

Self-cleaning filters can be equipped with additional equipment.

This is how you can find:

• self-cleaning filter with pressure gauge(it is convenient to monitor the pressure in the system, for example, if it increases relative to the pressure while water consumption continues, this may indicate a blockage, which means it’s time to flush it);
• filter with pressure reducer (additionally protects the water supply system from surges in inlet pressure).

Operating principle and advantages

Let's take a closer look at self-cleaning filters used in everyday life (mesh filters). To properly use such water supply units, you need to know their operating principle.

Let's look at the operation of the self-cleaning mesh filter in order.

During normal operation, water enters the inlet and, passing through a fine mesh in the filter flask, leaves small mechanical particles on its surface.

After some period of time, the accumulated dirt will have to be washed off. To do this, it would be necessary to stop the water supply, unscrew the filter housing, remove the mesh and rinse it under water pressure, then reassemble the system in the reverse order and resume the water supply.

But in the case of a self-cleaning filter, all these procedures are not necessary. It is enough to open a special drain ball valve and the deposit of mechanical particles will be washed away by pressure from the surface of the mesh.

It should be noted that it is first necessary to substitute a container for drained water or organize a special channel for the outflow of liquid from the drain tap into the sewerage system (this can be provided for at the stage of installation of the water supply system).

The advantages can be summarized as follows:

1. Significant savings on plumbing work due to periodic cleaning of the septic tank.
2. Saving maintenance time.
3. Budget savings due to the lack of replaceable cartridges, which quickly become unusable and require mandatory replacement.
4. Opportunity continuous operation system even during the flushing process (depending on the model).
5. Some manufacturers allow you to change the filter element and achieve the required quality of purification of the incoming water; for example, you can install a mesh for finer purification.

VIDEO INSTRUCTION

Should I buy a Honeywell self-cleaning filter or pay attention to analogues?

The most popular among those who install plumbing systems are products under the Honeywell brand. It has earned its popularity due to the high quality of all components, the ability to replace individual parts, as well as the excellent reliability and service life of the products.

Particular attention should be paid to models with a transparent body, which allows you to visually assess the degree of contamination. As well as devices with additional functionality - Honeywell filters equipped with pressure reducers and pressure gauges.

The only drawback of this product is its high cost.

And here you need to try to find an analogue that satisfies all the same demands for quality and functionality as Honeywell self-cleaning filters.

VIDEO OF HONEYWELL WORK

The following products from the group of self-cleaning household filters are presented on the market:

1. Valtec self-cleaning filter(equipped with two filter meshes, one inside the other; mesh cartridges, like those from Honeywell, can be purchased separately. The disadvantages include the lack of models with pressure reducers and a transparent body).
2. Products of the company TIEMME (Italy). The range includes filters even with a transparent body, but not with pressure reducers.
3. Itap filters are equipped with two pressure gauges - at the inlet and outlet, which is very convenient. If the pressure difference is large, it is immediately obvious that the filter mesh is clogged.
4. The German manufacturer SYR also offers semi-automatic household options. There are models for both cold and hot water.

And this is far from full list Honeywell's competitors in the market.

Of course, each product has its own advantages and disadvantages. But the consumer always votes with rubles.

Mechanical impurities are one of the most common things that you can encounter when consuming water, even from a water supply system (which has already gone through the water treatment stage, ideally). There are many options for how to deal with such contaminants.

1.1 Types of filters for removing mechanical impurities

Another wash-type filter model, inlet diameter ½ inch

The main types are as follows:

• Coarse cleaning methods are used (particles ranging in size from 20 to 100 microns are removed);
• Fine purification methods are used (water is purified from particles 1-5 microns in size).

Separately, we consider the so-called “mud filters” (including industrial ones), the task of which is to keep dirt from entering the system (we are not talking about fine cleaning here, they can be used when supplying water from a well).

In this case, filters are installed mainly at the outlet of the well. This is done so that the water is purified on the approaches from the well, and enters the system in a suitable form.

If a well is used as a source of water, coarse purification will be indispensable in the water treatment system (as well as fine purification products).

Methods for cleaning the filter are divided into:

• Flushing (usually main);
• Non-washable (usually a cartridge is used).

A special feature of filters that use a cartridge (including fine filters) is that it is impossible to wash the filter cartridge; after the end of its service life, it must be replaced.

At the same time, cartridges for filtering hot and cold water are not interchangeable, since a temperature greater than that for which the housing is designed will deform it or the cartridge.

In addition, you need to take into account that the life of the cartridge may vary depending on the composition of the water, and if it is necessary to replace it, you will have to shut off the water supply.

A wash filter (including a main filter) requires one or another method of cleaning the filter element.

The same blocks for hot water are usually opaque and metal. The transparent housing of the cold water filter sometimes allows you to “assess its condition by eye.”

2 Which mechanical cleaning filter to choose?

If you buy a main hot or cold water filter using coarse or fine cleaning methods, for household use, a model with the possibility of backwashing will be more convenient (also suitable for supplying water from a well).

Despite the fact that the main filter can be washed in one way or another without turning off the system, it is recommended to wash the mesh separately (that is, still turn off the system for a while), but this is done much less frequently than the need to change the cartridge.

If we compare the types of filters (regardless of whether they are intended for hot or cold water and what methods they use) - mesh or disk - it is often mentioned that the disk type of filter under similar conditions has greater productivity due to its larger filtration area.

But, a big gain can only be provided by the difference in the size of the filtration unit, and with similar sizes, both mesh and disk filters show the same indicators for the water passed through them (including in the case of fine purification).

At the same time, a coarse or fine disk filter may be more demanding on the incoming water pressure than a mesh filter, and may also be more expensive.

Before purchasing, you should decide on the parameters of the system on which the filter will be installed using coarse cleaning methods, and it is planned to be used for hot or cold water.

If the main filter is installed separately, it is necessary to check that the pipe connections and the diameter of the pipe and filter connections are compatible (or take care of their adjustment).

If a cartridge-type filter is installed in a block filtration system, you must also ensure that all blocks are compatible.

Accordingly, the choice is based on the following parameters:

• Is the filter separate or will it be installed in a multi-stage system. Sometimes a main filter is installed on a pipeline in a separate apartment, for example;
• What type of filter will be installed and whether it is compatible with the piping system (filter operating methods);
• Depending on the chosen type, the manufacturer and cost are determined.

Among the direct products of various manufacturers, we can mention filters (coarse and fine) Honeywell or Atlas, and from manufacturers in the CIS countries - the Russian Geyser.

The products of the Danish company Honeywell are distinguished by their reliability and build quality. Filters of this type from Honeywell are usually equipped with a backwash system. You can also expect additional equipment from Honeywell filters (with a built-in pressure gauge, for example).

Honeywell filters are also highly durable and resistant to pressure changes, since the filter housing is made of durable brass (a feature of these Honeywell products). The only downside here can be the cost, that is, Honeywell filters are less affordable.

Filters for water purification from the company, according to the manufacturer, compete with European analogues and are used both in Russia and in European countries.

Under the Geyser brand they are produced as individual species filters for mechanical cleaning, as well as entire systems for various purposes (comprehensive water purification for cottages and country houses, cleaning technology for enterprises).

As a result, several specialized Geyser solutions compete with more universal analogues. The Geyser company produces both mesh filters and filters that use a cartridge. A comparative advantage of Geyser is also its price (compared to the previous manufacturer).

Thus, Geyser products will be a more budget-friendly option. Therefore, when choosing between Geyser and Honeywell, we will prefer Geyser in terms of cost, and Honeywell in terms of quality.

2.1 Demonstration of the operation of the washing filter (video)