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中文简体Valves for urban construction The urban construction system generally adopts low-pressure valves, which are currently developing in the direction of environmental protection and energy saving. Environmentally friendly rubber plate valves, balance valves, midline butterfly valves, and metal-sealed butterfly valves are gradually replacing low-pressure iron gate valves. The valves used in domestic urban buildings are mostly balance valves, soft-sealed gate valves, butterfly valves, etc.
City heating valve
In the urban heat generation system, a large number of metal-sealed butterfly valves, horizontal balance valves and directly buried ball valves are required to solve the problem of vertical and horizontal hydraulic imbalance in the pipeline and achieve the purpose of energy saving and heat replacement.
Environmental protection valve
In the domestic environmental protection system, the central line butterfly valve, soft-sealed gate valve, ball valve, and exhaust valve (used to remove the air in the pipeline) are mainly used in the water supply system. The sewage treatment system mainly needs soft-sealed gate valves and butterfly valves.
City gas valve
City gas accounts for 22% of the entire natural gas market, with a large amount of valves and many types. Mainly need ball valve, plug valve, pressure reducing valve, safety valve.
Valves for long-distance pipelines
Long-distance pipelines are mainly crude oil, finished products and natural pipelines. The most commonly used valves for such pipelines are forged steel three-piece full-bore ball valves, anti-sulfur flat gate valves, safety valves, and check valves.
Valves for petrochemical plants
a. Refinery units. Most of the valves used in the oil refining plant are pipeline valves, mainly gate valves, globe valves, check valves, safety valves, ball valves, butterfly valves, and steam traps. 3% to 5% of the investment).
b. Chemical fiber device. Chemical fiber products mainly include three categories: polyester, acrylic and vinylon. The ball valve and jacketed valve (jacketed ball valve, jacketed gate valve, jacketed globe valve) of the required valve.
c. Acrylonitrile device. The device generally requires valves produced according to API standards, mainly gate valves, globe valves, check valves, ball valves, steam traps, needle valves, and plug valves. Among them, gate valves account for about 75% of the total valves.
