Where is the gas filter located? HBO filter - varieties, purpose, frequency of replacement

The gas that enters the working cylinders of the engine must be cleaned from impurities and mechanical impurities. For safety reasons, butane is added to propane chemical substances, which give the gas a sharp bad smell. They, along with other contaminants, can harm or jets, so liquid and steam filters are used.

Peculiarities

The HBO liquid filter or, as it is also called, coarse cleaning is located on the line to the evaporator gearbox. It performs a preliminary delay of relatively large contaminants of the gas mixture. For this, a mesh tip is used, as well as a filter element in solenoid valve or reducer.

The coarse cleaning element for gas equipment of a 4th generation car is quite simple in design. It usually includes replaceable cartridges and sealing gum. The quality of cleaning and the durability of the element depends on what material it is made of.

The HBO vapor phase filter is located on the line between the reducer and the nozzles. In the manufacture of its body, metal or high-strength plastic is used. It's connected with high pressure on this area. The use of a filter with a HBO sump, which collects small particles, is highly relevant. It is recommended to be used in a system that uses premium nozzles.

How to choose the right fine and coarse filter for HBO

Without going into details, the selection criterion may be the cost. It depends on the material from which the cleaning element is made. The better it is, the more efficiently the gas is cleaned, and the longer its durability.

In order of increasing cost and quality of fine cleaning elements:

• paper;
• polyester;
• fiberglass;
• felt.

The cleaning element, which is made of paper, should be changed at least once every 10 thousand km. Polyester is able to last longer functional purpose, and does not crumble when the car is idle for a long time. Fiberglass has a high degree of purification and low resistance. Inferior to polyester in durability.

With a coarse filter, everything is a little easier. The difference in cost is much smaller, since they do not differ significantly from each other. Special paper and cardboard have similar properties However, it is preferable to use cardboard.

IMPORTANT! If a 4th generation HBO is installed on the car, then it is not recommended to use paper as a fuel fine filter element!

Ignoring Maintenance LPG equipment of a car leads to the following consequences:

• increased fuel consumption;
• the formation of soot on the valves;
• power reduction;
• failure of the gearbox with nozzles.

Maintenance of LPG equipment includes many operations, among which the replacement of 4th generation LPG filters is the main one. HBO elements of the 4th generation are very sensitive to the quality and composition of the gas. Because of this, only high-quality materials can be used in the system.

Important! After replacing the filter elements of the 4th generation, it is necessary to reconfigure the electronic system in order to normalize the fuel supply.

Replacing HBO filters 4 generations with your own hands

HBO filters must be changed after a certain mileage. As we have already found out, the frequency of the operation depends on the quality of the material. As a rule, the fine gas filter of the 4th generation equipment needs to be changed more often. But experts recommend replacing them at the same time.

How to understand that the 4th generation HBO filter is clogged if you don’t know or don’t remember when this operation was last performed? First of all, there is a switch from LPG to gasoline and a noticeable decrease in power. In some cases, increased fuel consumption may occur. Owners often complain about jerks when driving.

If HBO is not under warranty, then you can replace the filters yourself, but this is not recommended. But drivers go for it, since even the simplest operations performed with elements of gas-balloon equipment are expensive in car services.

How to replace the coarse filter:

1. Close the valve on the cylinder to prevent gas leakage during operation.
2. Start the engine and wait for the car to switch to petrol.
3. Loosen the nuts on the inlet and outlet lines.
4. Unscrew the bolts on the cover, disassemble the case.
5. Take out the old cartridge.
6. Clean the body of dirt.
7. It is recommended to replace the seals.
8. Insert a new cartridge.
9. Assemble all elements in reverse order.
10. Open the gas supply with the valve.

How to replace the fine filter:

1. Shut off the gas supply using the valve on the cylinder.
2. Drain the rest of the fuel.
3. Loosen the clamps and remove the knot.
4. Reassemble in reverse order and check for leaks.

IMPORTANT! Be sure to check the system for tightness after installing the filters using a soapy solution.

Conclusion

When installing, the owner must carefully monitor its condition. Periodic replacement of filters will avoid breakage, which will be expensive.

Before choosing it, you must carefully study the system that is installed on the car in order to make the right choice of material.

In the video and article you will see how the HBO filter is replaced after 8 thousand kilometers.

The filter is located under the blue solenoid valve and copper tubes.

It is located in a glass:

Step-by-step instruction

For dismantling, first of all, you need a 14 key to unscrew the tubes. In addition, replacing the HBO filter will require a 17 wrench and a hex screwdriver. It should also be noted that those who have an electrovalve in the cylinder can change the entire assembly without closing the valve in the cylinder. Gas may come out, but it will be very little. If there is no solenoid valve, then it is better to close the valves manually.

1. Remove copper tubes

Make a small turn. Open carefully, like a bottle of champagne. If the gas went, then you are doing everything right. Wait until the pressure subsides. Once the hissing is over, unscrew both tubes.

2. Remove the assembly from the bracket

To do this, you need a key for 17. The filter node looks like this:

It consists of a coil, an electrovalve and a glass with a filter. We are most interested in a glass with a filter.

3. Remove the glass

To do this, you will need a hex screwdriver. There is a magnet inside the filter, which is designed to trap metal particles. Also for the filter in the glass you will need a sealing gum.

There is also a sealing gum in the upper part:

4. Replacing the HBO filter

It is advisable to lubricate the rubber bands before installation. The filter should go down into the cup with a smaller diameter. Don't forget to put the magnet inside the filter. After that, you can screw the glass back. Installation is in the reverse order.

When installing gas reducer on the car is necessary implementation one condition: the presence of HBO filters and free access to them. Filtering devices allow you to increase the resource of the HBO system and the engine itself.

Propane-butane, located in the cylinder, is in a liquefied state under a pressure of sixteen atmospheres. Manufacturers add special chemicals to its composition to give the gas a sharp bad smell. Such actions allow a person to feel the presence of gas in the car during a leak, even if its concentration is small. These reagents should not contain harmful impurities, but this is all in theory. In practice, added chemicals can form condensate, and they also contain oily impurities that can clog the gearbox or nozzle jets.

The presence of HBO filters in the gas system of the car allows you to clean the incoming gas in its following phases:

1. Liquid (before the reducer-evaporator). For this, coarse filtering devices are used.
2. Steam (after the gearbox). Fine filter elements are used.

Filtering devices purify gas from various kinds of impurities, prevent clogging of the reducer and injectors, and indirectly affect fuel consumption.

Coarse, fine cleaning

Preliminary cleaning of the gas mixture is carried out using a mesh tip placed on the intake tube of the multivalve. It prevents the entry of debris and dust particles. The subsequent cleaning step can be carried out in a solenoid gas valve or in a reducer (provided that a filter element is located in the reducer housing). In the first case, the operating temperature is close to the air temperature. In the second variant, the temperature maximum is close to operating temperature motor, the filtering device of the second type must be made of a material that can withstand high temperature and pressure in the line before the reducer.

Fine cleaner with tank

Coarse filter devices have simple design, which includes replaceable cartridges with sealing rubber bands. Depending on the material used for filtering, we can talk about the quality of the product. Expensive filters are equipped with condensate collectors; they are recommended for use in cars equipped with premium injectors, which are very demanding on fuel quality.

Filtration elements for fine cleaning are installed between the reducer and nozzles. It must have a durable case made of metal or high-strength plastic. Some manufacturers equip filter devices with settling tanks to collect small particles dust. If you buy low-quality products for filtration, the filter will fail after 3 thousand kilometers. Untimely replacement of the specified consumable can lead to engine failure.

Filtering devices installed with HBO, designed for fine gas cleaning, withstand temperature regime from -45 0 C to +120 0 C. They cannot be harmed by severe frosts or overheating of the motor.

The right choice, replacement frequency

A clogged HBO filter leads to such negative consequences:

• increase in fuel consumption by 2l./100 km. run;
• failure of gas equipment;
• deterioration of the motor;
• failure of the gearbox and injectors.

Avoid these negative consequences can be performed by timely replacement of the filter element. On equipment of the fourth or second generation, a scheduled replacement is made through the range from 8 to 10 thousand / km. run. After changing the filter to gas equipment The 4th generation is recommended to perform the accuracy of the ECU settings, because when the filter element is changed, the pressure parameter in the entire system changes - this is due to a change bandwidth filter material. Therefore, it is necessary to reconfigure electronic system HBO for normal fuel supply.

Depending on the material used for filtration, different degrees of filtration are observed:

1. Filter paper. It is the most common and cheapest material. May age over time and crumble if the car is long time idle.
2. Polyester. Resistant to aging when the car is idle, provides better filtration than filter paper.
3. Fiberglass. Fiberglass products reduce the resistance created in the path of the gas flow. But it requires more frequent replacement.
4. Felt. It is used for methane, cleans the incoming gas from debris particles.

Keep in mind: an incorrectly selected filter disrupts the operation of the entire gas system, leading to breakdown of expensive equipment.

Causes of cotton in the car air filter How long does it take to change the fuel filter on a diesel car?

Any gas system must have a gas filter, including a gas boiler. The device is mounted on a horizontal section of the pipe. Filter for gas boiler cleans the gas passing through it. This improves the error-free operation of flow meters and prevents gas equipment from failing.

Check price and buy heating equipment and related products you can with us. Write, call and come to one of the stores in your city. Delivery across all territory of the Russian Federation and the CIS countries.

Functions and purpose

A gas filter for a boiler is an addition to boiler equipment that is necessary to protect components from early wear. If you intend to contribute to the long life of the boiler, then do not ignore the purchase of a gas filtration device.

The function of the filter is to collect excess particles (tar, sand, small pieces of rust) that come with the gas through the pipeline system. With the help of high-quality cleaning of the gas that enters the system, the tightness values shut-off valves become much higher, reliability is ensured. Plus, devices such as meters will show high-precision data without errors. The boiler room itself, using gas filters, will not fail so quickly, and the main components of the heating unit will not corrode.

Installed gas filter

Types and how to choose

The gas filter for the boiler must be selected with full responsibility, because the level of reliability and safety of the gas supply system will depend on the choice. Currently, on the market of heating devices and components, you can see a variety of filtration units, classified according to some criteria.

Based on the direction of gas movement, gas filters can be distinguished:

• straight-through;
• rotary.

Based on their design parameters:

• corner;
• linear.

Devices can be made from different materials, allocate:

• steel;
• brass;
• aluminum.

Brass mesh filter for gas with a magnet

There may also be filters:

• welded;
• made by casting.

To select a gas filter, you need to evaluate the filter material. He can be:

1. Reticulate. Here, the filtration element is a special woven metal mesh, which perfectly traps small dust particles.
2. Hair. It is a cassette with pressed horsehair or nylon thread, which is impregnated with viscin oil.

Popular Models

Gas filters for boilers are quite popular in Russian market. A popular model is a small device of the 70600 series.

The product is manufactured by Giuliani-Anello s.r.l. and made from aluminum alloy. The lid is made of galvanized steel. The advantage of the filter is high reliability, in accordance with UNI-EN161 the model has the first group in terms of mechanical strength.

Characteristics of the gas filter for the boiler series 70600 Giuliani-Anello.

Viledon P15\500S material is characterized by excellent and high-quality absorption of dust particles and a long service life. It meets the general standard DIN EN779.

Compact gas filter Giuliani Anello 70600

When buying this gas filter for the boiler, you need to remember the following rules:

1. It is worth making sure that the filter element is compatible with your heating system by examining those parameters.
2. It is not necessary to install the device next to the walls on which plaster is applied.
3. At installation work a suitable tool must be used.
4. It is desirable to install the filter so that you can easily get close to its cover.
5. The gas flow must correspond to the direction indicated by the arrow on the unit body.
6. It is necessary to install the filter element after the gas reducer.

The 70600 series gas boiler filter is designed for installation on vertical and horizontal pipes, which ensures the versatility of the device.

The gas filter for the boiler is a small but very useful device for extending operating period heating unit. A variety of design solutions and the most different prices make it possible to choose the best device that fully justifies the money invested in it.

Gas filters are designed to clean gas from dust, rust, resinous substances and other solid particles. High-quality gas purification makes it possible to increase the tightness of locking devices, as well as to increase the overhaul time of these devices by reducing the wear of sealing surfaces. This reduces wear and increases the accuracy of flow meters (meters and measuring orifices), which are especially sensitive to erosion. Right choice filters and their qualified operation are one of the most important measures to ensure the reliable and safe operation of the gas supply system.

According to the direction of gas movement through the filter element, all filters can be divided into direct-flow and rotary, according to the design - into linear and angular, according to the material of the housing and the method of its manufacture - into cast iron (or aluminum) cast and steel welded.

When developing and selecting filters, the filter material is especially important, which must be chemically inert to the gas, provide the required degree of purification and not be destroyed under the influence of the working environment and in the process of periodic filter cleaning.

According to the filtering material, commercially available filters are divided into mesh and hair filters. In mesh, a woven metal mesh is used, and in hair, cassettes stuffed with nylon thread (or pressed horsehair) and impregnated with viscin oil.

Mesh filters, especially two-layer ones, are characterized by increased fineness and cleaning intensity. During operation, as the mesh becomes clogged, the fineness of filtration increases while reducing the throughput of the filter.

In hair filters, on the contrary, during operation, the filtering capacity decreases due to the entrainment of particles of the filter material by the gas flow and during periodic cleaning by shaking.

To ensure a sufficient degree of gas purification without entrainment of solid particles of the filter material, the gas flow rate is limited and is characterized by the maximum allowable pressure drop across the mesh or filter cassette.

For mesh filters, the maximum allowable pressure drop should not exceed 5,000 Pa, for hair filters - 10,000 Pa. In the filter before operation or after cleaning and washing, this difference should be 2,000-2,500 Pa for mesh filters, and 4,000-5,000 Pa for hair filters. The design of the filters provides fittings for connecting devices, with the help of which the magnitude of the pressure drop across the filter element is determined.

The summary table on page 1236 shows the main characteristics of gas filters.

Rice. 5.1. Mesh filter type FS: 1 - body; 2 - cassette; 3 - grid; 4 - cork; 5 - fittings

The operation of the mesh filter can be considered using the example of a filter of the FS type (see Fig. 5.2), where a factory-made single-layer woven metal mesh is used as a filter element, which, by giving it cylindrical shape, soldered to the frame inserted inside this cylinder. In the body 1 there is a clip, consisting of a wire frame (cassette) 2 and a fine-mesh mesh 3 that fits it.

The clip is pressed against the protrusions of the housing by plug 4. The gas from the inlet pipe of the filter enters the clip, on the grid of which solid particles are retained and partially poured down. After passing through the grid, the purified gas enters the filter outlet pipe and from there it is directed to the main equipment.

To clean the filter with the locking devices closed, the plug is unscrewed before and after it, the clip and the mesh are removed from the housing, and washed thoroughly. Fittings 5 ​​are used to connect a differential pressure gauge.

Rice. 5.2. Gas filter FG: 1 - body; 2 - breaker sheet; 3 - cassette; 4 - perforated sheet; 5 - filter element; 6 - cover; 7 - fittings; 8 - flange

We will consider the operation of a hair filter using the FG type filter as an example (see Fig. 5.2). There is a cassette 3 in the filter housing 1. In front of it (along the gas path) a baffle sheet (steel plate) 2 is installed, which prevents damage to the cassette by large solid particles. The end parts of the cassette are tightened with wire meshes, the space between which is stuffed with nylon thread (or pressed horsehair) impregnated with viscin oil, through the stuffing, which should be homogeneous, without lumps and bundles, it is cleaned. Behind the cassette there is a grate 4 (perforated metal plate), which protects the rear wall from rupture and entrainment of the filter material when the permissible pressure drop is exceeded. From above, the body is covered with a cover 6, fixed with bolts. Fittings 7 are used to connect a differential pressure gauge when measuring the pressure drop.

To clean the filter with closed locking devices before and after it, remove the cover, remove the cassette, and remove the plug from flange 8.

Clean the cassette by shaking off accumulated solids and washing it in benzene, xylene, and other solvents.

The body of hair filters, as well as mesh ones, can also be made of welded steel.