There are about 2,300 valve production in China. There are several types of valve products available, more than 3,500 varieties, more than 40,000 specifications, and more than 2,300 valves are produced in China. There are several types of valve products available, more than 3,500. Variety, more than 40,000 specifications.
(1) Valves for urban construction: Urban construction systems generally use low-pressure valves, and are currently developing in the direction of environmental protection and energy conservation. Environmentally friendly rubber plate valves, balancing valves, and mid-line butterfly valves and metal-sealed butterfly valves are gradually replacing low-pressure iron gate valves. Domestic urban construction requires valves such as balance valves, soft seal gate valves, and butterfly valves.
(2) Valves for urban heating: In the urban heat generation system, a large number of metal sealing butterfly valves, horizontal balancing valves and direct-buried ball valves are needed. Because of this type of valve, the longitudinal and lateral hydraulic imbalance of the pipeline can be solved to achieve energy saving and heat balance. the goal of.
(3) Valves for environmental protection: In the domestic environmental protection system, the water supply system mainly needs the middle line butterfly valve, the soft seal gate valve, the ball valve, and the exhaust valve (used to remove the air in the pipeline). Sewage treatment systems mainly require soft sealing gate valves and butterfly valves.
(4) Valves for city gas: City gas accounts for 22% of the entire natural market, and the amount of valves is large, and there are many types. Ball valves, plug valves, pressure reducing valves, and safety valves are mainly required.
(5) Valves for long-distance pipelines: Long-distance pipelines are mainly crude oil, finished products and natural pipelines. The valves that require a large amount of such pipelines are forged steel three-piece full-bore ball valves, sulfur-resistant slab gate valves, safety valves, and check valves.
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