To ensure that the equipment running smoothly and within the valve plug rotation was uninterrupted use sealants. Pick up lubricant for gas taps on several parameters, but should first understand the technical characteristics of each type.
Varieties and lubrication characteristics
Potting mixture divided into types depending on the working conditions and destination. They are divided into two main groups:
- Anti-friction.
- Sealing.
Any grease valves for the gas necessary for the stable operation of equipment mechanisms. Sealing grease operate over a wide temperature range. They provide a reliable sealing of joints, do not provide contact details of the friction and withstand high loads. Sealing compounds increase the service life of the appliance, have high corrosion resistance, which allows metal parts do not break down. In addition, such a sealant composition does not cause corrosion when in contact with condensate.
The composition includes a liquid base mixture (petroleum oil, glycerin, synthetic oil) and a solid thickener (fatty acid salts). In addition to the composition of the following elements are introduced: graphite, mica, Teflon crumb. They increase the ability tightly close the gaps existing, lower coefficient of friction. dropping point for grease is regulated by separate GOST standards. By standards apply the lubricant can be at a temperature not dropping below 15 degrees.
For each element of the gas tap provided its sealing grease. For valves and control valves sealing grease must meet the following requirements:
- High temperature resistance, chemical compounds.
- Possess high adhesion and water resistance.
- Have compatibility with plastic, metal elements in the temperature range of from 0 to 160 degrees.
Lubricating members for cranes must have high wear resistance and anticorrosive properties. The sealant should also be combined with plastic, metal elements to ensure reliable operation of the driving elements, to prevent undulations. Application of lubricants on materials of sealed valves on the gas cylinder provide a safe and long-term operation of the heating system as a whole.
Lubricants are less dense composition and need to disconnect parts. This type of sealant does not allow elements of the crane in contact with each other, and thus protect the parts from mechanical damage, increase their service life.
Anti-friction mixture have the following technical data:
- It does not dissolve in petroleum products.
- Provide work element at a temperature up to 50 degrees.
- Manufactured fat or silicone-based.
- It does not hold corrosive effect on metal.
The lubricant is also added grease or graphite. They increase the coefficient of sliding parts, and the ability to withstand large pressure differences. For thermal stability in lubricants are added synthetic oil with calcium soap.
Use lubricant during assembly or installation of gas equipment, the heating system, when transferring pipe or valve replacement. Without effective use of the sealant system is not secure.
How to replace the gas valve in apartment
If there are problems in the pieces of equipment, it is required the complete replacement. Before you replace a faulty gas valve in an apartment, you must determine the cause of the problem.
The main rule is that everyone should know - it does not open the gas cylinder or valve independently. It has to do gazoobsluzhivayuschey specialist company. It is their responsibility to repair and replacement of valves, connecting equipment, conducting audit activities. If you do not have to wait for the master, and decided to carry out a replacement, require preparation of the necessary tools and materials.
The first step will be the acquisition of the following tools:
- A pair of gas keys.
- Sealant. Better to take a special graphite lubricant or grease.
- Plug 1/2 inch internally threaded.
Further inspection conducted for installation problem area. If the smell is felt that the tap passes gas, carry out repair activities can be without a common valve replacement. To do this:
- Close the valve to stop the gas to pass through the system further.
- Secure key gas spigot below the valve and keep it in a static position.
- The second key is installed below the locknut and coupling.
- Unscrew the valve key to the point where it is easy to go to work by hand.
- Fully unscrew it and pushed onto the threaded plug.
- Next you need to unscrew the valve eviction.
- We take out the plug with a groove on the reverse side of the valve plug and ejected canonical.
- Clean the cabinet, lubricate it with sealant, and assemble in reverse order.
- Install the valve in place of the plug, and run the sleeve nut into position.
Now you can open the valve and check its operation, as well as the presence of gas leakage.
If you are not satisfied with the work of an old crane, it can be replaced. It is better to choose a valve of the same size, then the work on the replacement will be carried out in the same way as for repairs.
If the length is not the same as with the previous size of the crane, the work will be performed by replacing as follows:
- Short thread set with an extension with an external thread. This will allow fix the gasket on the flat surface of the extension, instead of with serrated sides.
- Extension connects the gas hose to the valve. Joints compounds are treated with sealant.
gas valve device after replacing necessarily requires verification.
Revision of gas equipment is also required if the crane near the plate periodically grass, and to establish the exact location of leakage is impossible. To find out, where there is a problem, you need to spread lather the joints. Where the foam begins to bubble and have the leak. Fault detection should be eliminated in a short time, otherwise the gas can be harmful to human health.
Safety regulations
Working with gas appliances has increased the level of danger, so you need to follow safety rules. In carrying out independent work on the replacement or repair of the valve on the pipe, adhere to the following rules:
- All manipulations are carried out with equipment with the windows open.
- Electricity is necessary to disconnect all over the apartment.
- During work is forbidden to smoke, light a match.
- Repairs are performed only during daylight hours, ensuring good daylight.
- The door to the room where the actions are carried out on equipment replacement must be securely fastened.
- You can not override the shared valve. This increases the concentration of propane and explosion hazard.
- A job best done collectively. This will speed up the process and minimizes the number of errors.
- If the gas pipe equipment and old, there are visible signs of corrosion, do not perform any manipulation of their own.
- It is necessary to secure a spot repair fire equipment.
Compliance with safety regulations - is not just a requirement for reinsurance. These measures will help to keep the house, and people's health intact.
Thus, replacement of the gas valve on their own, requires the owner of certain knowledge and skills in this area, the availability of the necessary tools, as well as a reliable, high-quality grease for crane. Sealant allows to safely use the gas valve to increase the service life of the entire system.