How to judge the quality of steam generator safety valve?

When choosing a major equipment such as a steam generator, many people think that the steam generator can be installed and used after it is picked up, as long as the quality of the steam generator itself is up to standard. But in fact, during the use of the steam generator, the service life and safety factor of the valve must also be considered, which will have a major impact on the entire steam generator.

Almost all spare parts have a corresponding service life, and the same is true for the spare parts on the steam generator. Sometimes, whether the steam generator can work safely still mainly depends on the spare part of the safety valve. If the safety valve in the steam generator is not closed properly or tightly, it may become an unsafe factor for the steam generator.

So how to distinguish whether the safety valve of steam generator parts is qualified? Under the normal working pressure of the steam generator equipment, a certain degree of leakage occurs between the valve disc and the valve seat sealing surface of the safety valve, which not only causes Media loss may also affect the hard sealing material.

To this end, it is stipulated that the sealing surface of the steam generator safety valve should be made as bright and smooth as possible to ensure the best sealing performance. However, because the sealing surfaces of common safety valves are almost all metal-to-metal materials, sometimes they are bright and smooth in the medium zone. It is very likely to leak under pressure.

For this reason, we just use this characteristic as a basis for judging the quality of the steam generator safety valve, because the working medium of the steam generator is steam. Therefore, under the standard pressure value of the safety valve, if it is not visible to the naked eye at the outlet end, it will If no leakage is heard, it can be judged that the sealing function of the safety valve is qualified.

Only this kind of safety valve can be used as a steam generator spare part. Not only must the quality of the spare part itself be excellent, but its use cannot be compromised. It must be operated in strict accordance with the standards to ensure the safety factor of the steam generator.