Descriptions How many kinds of valves in China
About more than 2300 of valves produced three valve products provide several categories, more than 3500 varieties, more than 40,000 specifications.
(1) urban architecture valves: Urban Construction Department with the general use of low-pressure valves are currently being environmentally friendly and energy-efficient development. Environmentally friendly plastic sheet valve, balance valve centerline butterfly valve, metal sealed butterfly valve is gradually replaced by low iron gate. Home and city building required valve balancing valve, soft sealing valve, butterfly valve.
(2) urban heating valves: the city on behalf of the thermal system, need to use a lot of metal sealing butterfly valve, horizontal balancing valve and buried ball valve, because this type of valve to solve the pipeline longitudinal, transverse the hydraulic imbalance topic, to achieve energy saving, on behalf of the heat balance purposes.
(3) environmental protection valves: home and environmental systems, water supply system required butterfly valve, soft seal gate valves, ball valves, exhaust valves (used to exclude the air in the pipes). Sewage treatment system required soft seal gate valves, butterfly valves.
(4) City Gas Valves: city gas accounted for 22% of the whole natural market large amount of valve type. Need ball valves, plug valves, pressure reducing valves, safety valves.
(5) long-distance pipeline valves: long-distance pipeline for crude oil and finished no and natural pipeline. The majority of such pipelines required amount valve Forged three-body full bore ball valve, the sulfur resistant flat gate valve, safety valve, check valve.
(6) petrochemical plant valves: a, oil refining, oil refining plants required valve mostly pipeline valves, main gate valves, globe valves, check valves, safety valves, ball valves, butterfly valves, steam traps, which valve demand accounted for about 80% of the total number of valves (valve installation of a total investment of 3% to 5%). b, chemical fiber plants, fiber products, polyester, acrylic, the vinylon three classes. Required valve, ball valve, jacketed valve (jacketed ball valves, jacketed gate valves, jacketed cut-off valve). c acrylonitrile apparatus. The device is generally required api-scale valve produced, mainly for gate valves, globe valves, check valves, ball valves, steam traps, needle valves, plug valves, which, gate valves accounted for about 75% of the total valve. d ammonia plant. Synthetic ammonia the original and purification method, the process is different required technical functioning of the valve. , Home and ammonia plant required gate valves, globe valves, check valves, steam traps, butterfly valves, ball valves, diaphragm valves, regulating valves, needle valves, safety valves, high temperature and low temperature valve.
Accounted for 53.4% of the data devices valve, shutoff valve, gate valve at 25.1%, 7.7% of the trap, accounting for 2.4% of the safety valve, regulating valve and away from the cryogenic valve and other accounted for 11.4% e, ethylene plant, ethylene plant is the leading petrochemical unit, the required valve wide variety.
Valve, globe valve, check valve, lift rod ball the majority, which gate valves need to be topped. "15" plan, the country needs to build an annual output of 660,000 tons of ethylene plant six sets of valve demand considerable. In addition, large-scale ethylene and LDPE Plant needed with ultra-high temperature, the more low temperature and high pressure valve products. f, an air separation unit. Air separation that air separation, the device required cut-off valve, safety valve, check valve, control valve, ball valve, butterfly valve, cryogenic valve. g polypropylene plant, polypropylene is propylene, raw materials, polymerization of polymers, the device required gate valves, globe valves, check valves, needle valves, ball valves, steam traps.
(7) power station valves: the construction of power stations in China forward large direction, so the need to use a large diameter and high pressure safety valve, pressure reducing valves, globe valves, gate valves, butterfly valves, emergency intercept valve and flow control valve, spherical seal instrument globe valve, (according to the national "10th Five-Year Plan", in addition to Inner Mongolia and Guizhou provinces also built more than 200,000 kilowatts units, other provinces and cities can only build units above 300,000 kilowatts).
(8) metallurgical valves: metallurgical industry in alumina behavior required to wear the slurry valve (flow shut-off valve), adjust the trap. The steelmaking industry mainly need to use metal seated ball valves, butterfly valves and the oxidation ball valve, cut-off the flash and four-way valve.
Valve (9) ocean level applies: follow the development of offshore oil exploration, the ocean flat hair demand of valve gradually increased. The marine platforms need to use off ball valves, check valves, multiple valves.