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Several categories of valve products in China

2023-01-03 14:04

The domestic market valve manufacturers about more than 2300, can provide the valve products have several categories, more than 3500 varieties, more than 40,000 specifications. Here is an introduction to the classification of valves!

Valves for urban construction.

Urban construction systems generally use low-pressure valves, which are currently developing in the direction of environmental protection and energy saving. Environmentally friendly rubber plate valves, balance valves and midline butterfly valves, metal sealed butterfly valves are gradually replacing low pressure iron gate valves. Domestic urban buildings need to use valves mostly balance valves, soft seal gate valves, butterfly valves, etc.

Valves for urban heating.

City heat generation system, need to use a large number of metal hard seal butterfly valve, horizontal balancing valve and direct burial ball valve, because this kind of valve to solve the longitudinal, horizontal hydraulic disorder of the pipeline, to achieve the purpose of energy saving, heat generation balance.

Valves for environmental protection.

Domestic environmental protection systems, water supply systems mainly need to use the middle line butterfly valve, soft seal gate valve, ball valve, exhaust valve (used to exclude the air in the pipeline). Sewage treatment systems mainly need to use soft seal gate valves, butterfly valves.

Valves for city gas.

City gas accounts for 22% of the entire natural whole market, with a large amount of valves and their many types. Ball valves, plug valves, pressure reducing valves and safety valves are mainly needed.

Valves for long-distance pipelines.

Long-distance pipelines are mainly crude oil, finished products and natural pipelines. This kind of pipeline need to use the majority of the valve is forged steel three-body full bore ball valve, anti-sulphur plate gate valve, safety valve, check valve.

Valves for petrochemical installations.

a, oil refineries, oil refineries need to use most of the valves are pipeline valves, mainly gate valves, globe valves, check valves, safety valves, ball valves, butterfly valves, traps, of which, gate valves need to account for about 80% of the total number of valves, (valves account for 3% to 5% of the total investment in the device).

b, chemical fiber device, chemical fiber products are mainly polyester, acrylic, vinylon three categories. Its need for valves of ball valves, jacketed valves (jacketed ball valves, jacketed gate valves, jacketed globe valves).

c, acrylic device. The device generally needs to use api standard production of valves, mainly gate valves, globe valves, check valves, ball valves, traps, needle valves, plug valves, of which, gate valves account for about 75% of the total number of valves.

d、Synthetic ammonia plant. As the original ammonia and purification methods are different, the process is different, the technical performance of the required valves are also different. At present, the domestic ammonia plant mainly requires gate valves, globe valves, check valves, traps, butterfly valves, ball valves, diaphragm valves, regulating valves, needle valves, safety valves, high-temperature low-temperature valves. Among them, globe valves account for 53.4% of the total data of valves used in the device, gate valves account for 25.1%, traps account for 7.7%, safety valves account for 2.4%, regulating valves and low-temperature valves and others account for 11.4%.

e, ethylene plant, ethylene plant is the leading petrochemical plant, which requires a wide range of valves. Gate valves, globe valves, check valves, lift rod ball valves account for most of them, of which gate valves need to take the lead. "Tenth Five-Year Plan", the country also needs to build an annual output of 660,000 tons of ethylene plant 6 sets, the valve demand is considerable. In addition, large ethylene and high-pressure polyethylene devices also need to use ultra-high temperature, the more low temperature and ultra-high pressure valve series products.