Several major categories of valve products in China


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's 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 environmentally friendly and energy-saving. Environmentally friendly rubber plate valve, balance valve and midline butterfly valve, metal sealed butterfly valve is gradually replacing the low pressure iron gate valve. Domestic urban buildings need valves mostly balancing valves, soft seal gate valves, butterfly valves, etc.

Valves for urban heating.

Urban 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 type of valve to solve the longitudinal and 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 centerline butterfly valve, soft seal gate valve, ball valve, exhaust valve (for the exclusion of air in the pipeline). Sewage treatment system mainly requires a soft seal gate valve, butterfly valve.

Valves for city gas.

City gas accounts for 22% of the entire natural whole market, the valve usage is large, and its type is also more. Mainly need ball valves, plug valves, pressure reducing valves, safety valves.

Valves for long-distance pipelines.

Long-distance pipelines are mainly crude oil, finished products and natural pipelines. This type of pipeline requires the majority of the valve is forged steel three-body full bore ball valve, sulfur-resistant flat gate valve, safety valve, check valve.

Petrochemical plant with valves.

a, oil refineries, oil refineries need to use the valve is mostly 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 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 need 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, the globe valve accounts for 53.4% of the total valve data, gate valves account for 25.1%, traps account for 7.7%, safety valves account for 2.4%, regulating valves and low-temperature valves and other accounts for 11.4%.

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

f, air separation device. "Air separation" that is, air separation, the device mainly needs to use globe valves, safety valves, check valves, regulating valves, ball valves, butterfly valves, low-temperature valves.

g, polypropylene device, polypropylene is easy to propylene as a raw material, polymerized polymer compounds, the device mainly need gate valves, globe valves, check valves, needle valves, ball valves, traps.

Valves for power stations.

China's power station construction is developing in the direction of large-scale, so the need for large-diameter and high-pressure safety valves, pressure reducing valves, globe valves, gate valves, butterfly valves, emergency shut-off valves and flow control valves, spherical seal instrumentation globe valves, (according to the national "Tenth Five-Year Plan", in addition to Inner Mongolia, Guizhou provinces can also build more than 200,000 kilowatts units, other provinces and cities (according to the national "Tenth Five-Year Plan", in addition to Inner Mongolia and Guizhou provinces can also build more than 200,000 kilowatts units, other provinces and cities can only build more than 300,000 kilowatts units).

Valves for metallurgy.

Metallurgical industry in the alumina behavior mainly need to use wear-resistant slurry valve (in the flow type shut-off valve), regulating traps. Steel industry mainly requires metal sealed ball valves, butterfly valves and oxygen ball valves, globe valves and four-way directional valves.

Marine flat with the valve.

With the development of offshore oilfield exploitation, the amount of valves needed for its marine flat has gradually increased. Marine platform need to use shut-off ball valves, check valves, multiway valves.

Valves for food and medicine.

The industry mainly requires stainless steel ball valves, all-plastic ball valves and butterfly valves.