how many kinds of valve in china

China Valve produce three about 2300 DuoGe, can provide the valve product has a few kinds big, 3500 DuoGe breed, 40000 DuoGe specifications.

(1) the city building valve: urban construction department with general use of the low pressure valves, the current positive environmental protection and energy-saving direction. Environmental protection plastic board valves, balance valve and the midline butterfly valve, metal sealing butterfly valve is gradually replace low voltage iron gate valves. The city needs more than building of valve for balancing valve, soft seal gate valves, butterfly valves, etc.

(2) city heating with valve: the city and hot system, need a large number of metal sealing butterfly valve, level and buried balancing valve type ball valve, because this kind of valve solve pipeline vertical, horizontal hydraulic misadjustment subject to save energy, and the purpose of the thermal equilibrium.

(3) the environmental protection use of environmental protection system, valves, water supply system mainly need midline butterfly valve, soft seal gate valves, ball valves, exhaust valve (used to rule out the air in the pipeline). Sewage treatment system mainly need soft seal gate valves, butterfly valves.

(4) city gas use valve: city gas accounts for 22% of the market in all the whole of nature, valve, its type and use. Main need ball valve and plug valves, pressure reducing valve, valve.

(5) long distance pipeline with valve: long-distance pipelines mainly for crude oil, finished product didn't and natural pipeline. This kind of pipeline to the majority of the valve is dosage of forging steel three asana full-bore ball valve, fight sulfur flat valve, the relief valve, check valve.

(6) in a petrochemical plant valve, oil refining device, need most of the refining units pipe valve, valve is mainly for gate valves, globe valves, check valves, the relief valve, ball valves, butterfly valves, traps, among them, the gate valves should be accounted for 80% of the total amount valve, valve (about 3% of the total investment of device ~ 5%). B, chemical fiber device, chemical fiber products mainly polyester and acrylic and WeiGuan three categories. The need of the ball valve, valve with set of valves (clip set of ball valve, gate valve, clip clip set of globe valve). C, propylene fine device. The device generally need API scale produce of valve, mainly for the gate, globe valve, check valve, ball valves, traps, needle type valve and plug valves, among them, the total amount of the valve gate valves of around 75%. D, synthetic ammonia equipment. Because the original and purification of synthetic ammonia method is different, the technological process, the technology needed for different valve function are different. At present, the ammonia plant of main need gate valves, globe valves, check valves, traps, butterfly, Hydrant Valve, the diaphragm valve, the regulator, needle type valve, the relief valve, high temperature low temperature valve.

Among them, the globe valve with the total number of device according to 53.4%, gate valves 25.1%, traps accounted for 7.7%, the relief valve, the regulator and 2.4% from the low temperature of the valve and other 11.4%. E, ethylene plant, ethylene plant is the bibcock of petroleum chemical industry, the device needs valve of various kinds.

Gate valves, globe valves, check valves, lifting lever type ball valve, gate valve should be accounted for most of preeminence. "Tenth five-year plan" period, the national also shall be built with annual output of 660000 tons of ethylene plant, the demand for six sets of valve considerable. In addition, large ethylene and high pressure polyethylene device also need the ultra high temperature, low temperature and high pressure valve series products. F, air separation unit device. "Air" is that the air separation,the device is mainly need cut-off valve, the relief valve, China Valve, the regulator, ball valves,butterfly valves, low temperature valve. G, polypropylene device,polypropylene easy is as raw material by the propylene polymerization and into the polymer compound,the device is mainly need gate valves, globe valves,check valves, needle type, ball valve,the trap.

(7) with the valve: the power station power plant construction of large-scale development direction, so positive need large diameter and high pressure relief valve, pressure reducing valve, cut-off valve, gate valves, butterfly valves, emergency block valves and flow control valves, globe valves sphere seal instrument, (according to the national "" plan, in addition to Inner Mongolia, guizhou provinces still can build 200000 kilowatt above the other provinces and cities, the unit can only be built 300000 kilowatt above the unit).

(8) metallurgical valve: metallurgical industry with the aluminum oxide behavior mainly need abrasive resistance slurry valves (in streaming globe valve), regulating the trap. Steelmaking industry needs major metal sealing ball valves, butterfly and oxidation ball valve, cut-off flash and stone reversing valves.

(9) for Marine flat valve: follow the development of the mining offshore oil field, which ocean flat hair need the amount of valve is increasing. Sea platforms need shut off the ball valve, Hydrant Valve, the multiple valve.