Valves produced three about 2300 in China, can provide the valve products have several categories, more than 3500 varieties, more than 40000 specifications. ( 1) City building valve: with urban construction department of the general low-pressure valve, is environment-friendly and energy-saving direction. Environmental protection rubber plate valves, balance valves and center line butterfly Industrial Valves, metal sealing butterfly valve is gradually replace low iron gate valves. Tribes of city construction need more for balancing valve valve, soft-sealing gate valve, butterfly valve, etc. ( 2) City heating valve: a generation of thermal system, need a lot of metal sealing butterfly valve, horizontal balancing valve and directly buried type ball valve, because of this kind of valve is solving the hydraulic imbalance between pipe vertical and horizontal topic, achieve the goal of energy saving, generation of heat balance. ( 3) Environmental protection with the valve: of collecting environmental protection system, water supply system is mainly need center line butterfly valve, soft-sealing gate valve, ball valve, exhaust valve, Used to eliminate the air in the pipe) 。 Sewage treatment system mainly need soft-sealing gate valve, butterfly valve. ( 4) City gas valve: a city gas accounted for 22% of the whole nature of the whole market valve dosage is large, its type also. The main need ball valve, plug valves, pressure reducing valve, safety valve. ( 5) Long distance pipeline valve: a long pipeline mainly for crude oil, finished product and natural line. Dosage of this type of pipeline should be in the majority of the valve are three postures full size ball valves, forged steel sulfur resistant plate gate valve, safety valve, check valve. ( 6) Petrochemical plant with valve: a, refining equipment, oil refining device of the valve is mostly pipe valves, mainly for the gate valve, globe valve, check valve, safety valve, ball valve, butterfly valve, steam trap, among them, the gate to amount to about 80% of the total number of valves, ( The valve of the device with a total investment of 3% ~ 5%) 。 B, chemical fiber, chemical fiber products mainly include polyester, acrylic, whalen three categories. The clamp of valve ball valve, valve, Jacketed clamp clamp ball valve, gate valve, globe valve) 。 C, propylene sunny device. The device produces valve, generally need to use the API scale mainly for gate valve, globe valve, check valve, ball valve, drain valve, needle valve, plug valves, among them, the gate valve of the total accounted for about 75%. D, ammonia plant. Because of synthetic ammonia and purification methods, its technological process is different, have different function of the technology of valves required. At present, the main need of collecting ammonia plant gate valve, globe valve, check valve, drain valve, butterfly valve, ball valve, diaphragm valve, regulating valve, needle valve, safety valve, high temperature and low temperature valve. Among them, the cut-off valve which is according to 53 total device with a valve. 4%, the gate of 25. 1%, the trap of 7. 7%), the relief valve (2. 4%, the regulating valve and valve at low temperature, and other 11. 4%. E, ethylene plant, is a leading petrochemical ethylene device, its need a variety of valve. Gate valve, globe valve, check valve, lift rod ball valve is a majority, including gate valves should be tops. The tenth five-year plan, the country still need to build six sets of annual output of 660000 tons of ethylene plant, the valve demand is considerable. In addition, large ethylene and high pressure polyethylene plant with ultra high temperature, the low temperature and super high pressure valve series products. F, air separation unit. 'Air' or air separation, the device is mainly need cut-off valve, safety valve, check valve, regulating valve, ball valve, butterfly valve, cryogenic valve. G, polypropylene device, polypropylene with propylene as raw material, through the polymerization of polymer, the device is mainly need gate valve, globe valve, check valve, needle valve, ball valve, steam trap. ( 7) Power station with valve: for the construction of the power station in China are large-scale direction, so the need of large diameter and high pressure relief valve, pressure reducing valve, cut-off valve, gate valve, butterfly valve, emergency block valve and flow control valve, the spherical seal globe valve, ( According to the national 'tenth five-year plan, with the exception of Inner Mongolia, guizhou provinces can be built more than 200000 kilowatts units, other provinces and cities have built more than 300000 kilowatts units) 。 ( 8) Metallurgical valve: alumina behavior mainly used in metallurgical industry abrasive slurry valve ( In the current cut-off valve) , adjust steam trap. Main steelmaking industry need metal sealing ball valve, butterfly valve and ball valve, globe flash oxide and four-way reversing valve. ( 9) Marine valve suitable for flat: with the development of offshore oil field exploitation, the sea flat hair need valve also gradually increasing. Offshore platform with shut off ball valve, check valve, multi-channel valve. In this paper, the keyword search: more technical articles valve product supply information
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