The structural characteristics of the high temperature and high pressure Y type globe valve are as follows: 1. The wide sealing surface design can effectively extend the service life of the sealing surface. The sealing surface is welded with STL alloy, which is good in erosion resistance and wear resistance.
Valve daily maintenance is very importance, following are some instructions for valve daily maintenance.Doing these tasks well is believed to be very helpful for prolonging the service life of the valve, and it can also reduce a lot of unnecessary troubles.
Fugitive Emission Valves are those valves which bleed only a small amount of leakage to the external environment.In some European countries, there are customized companies to provide Fugitive Emission Testing Service for the local manufactures and end users.
The gate valve is a valve that moves the shutter closure member in the vertical direction of the centerline of the passage. Generally, it consists of valve body, valve seat, valve stem, gate, valve cover and sealing ring.
If the valve flap of the safety valve and the seat portion of the valve seat are leaked beyond the rated range, the loss of the medium may occur, thereby destroying the sealing material. Under normal circumstances, the sealing surface of the safety valve is mainly composed of metal material, and it is smooth and flat as much as possible.
Control valve requirements: control boiler water intake, ensure steam evaporation, maintain boiler water level, that’s attached boiler feed valve system contains two control valves, one for boiler start-up, one for normal water supply.
In recent years, with the continuous improvement of China's comprehensive national strength, the development of China's marine industry has also achieved rapid progress. In this context, the shipbuilding industry has drawn much attention.
In our current valve on the market, in addition to low pressure valve acceptable to the international market level, the high-pressure valve still needs to rely on imports. Continued good macroeconomic situation, the valve industry most of the production and sales targets are maintained rapid growth.
The pneumatic diaphragm regulating valve has the advantages of compact structure, lightweight, sensitive action, fluid type, less pressure drop loss, large valve capacity, accurate flow characteristics, convenient assembly, and disassembly.
Due to the relatively large variety of valves used in the marine's pipelines, this creates difficulties in preparing and revising the appropriate standards for valves. Another aspect is that the use of valves in current marine pipelines in China is mainly based on manual valves such as a globe valve and gate valve. Such industrial valves are still relatively insufficient in terms of weight, volume, and sealing.