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Various characteristics of various valve applications
- Jul 27, 2017 -

1. City heating valve: the city on behalf of the heat system, the need for a large number of metal seal butterfly valve, horizontal balance valve and buried ball valve, because this type of valve to solve the vertical and horizontal hydraulic problems, to achieve energy saving, heat balance purpose.

2. City gas valve: city gas accounts for 22% of the entire natural gas market, the valve is large, its type is also more. Mainly need ball valve, plug valve, pressure reducing valve, safety valve.

3. Urban construction valves: urban construction systems generally use low-pressure valves, is currently environmentally friendly and energy-saving direction. Environmentally friendly rubber plate valve, balance valve and midline butterfly valve, metal seal butterfly valve is gradually replacing the low pressure iron gate valve. Domestic urban construction need valves for the balance valve, soft seal gate valve, butterfly valve and so on.

4. Environmental protection valve: the domestic environmental protection system, the water supply system mainly need midline butterfly valve, soft seal gate valve, ball valve, exhaust valve (used to exclude the air in the pipeline). Sewage treatment system mainly need soft seal gate valve, butterfly valve.

5. Long-distance pipeline with the valve: long-distance pipeline mainly for crude oil, finished and no natural pipeline. This type of pipeline need to use the majority of the valve is forged three-body full diameter ball valve, anti-sulfur flat gate valve, safety valve, check valve.

6. Petrochemical device with a valve: a, oil refineries, oil refineries need to use valves are mostly pipeline valves, mainly for the gate valve, check valve, check valve, safety valve, ball valve, butterfly valve, trap, The total number of valves about 80%, (valve accounted for the total investment of 3% to 5%). B, chemical fiber devices, chemical fiber products are polyester, acrylic, vinylon three categories. Its need to use the valve ball valve, jacket valve (jacket ball valve, jacket gate valve, jacket cut valve). C, acryl clear device. The device is generally required to use api standard production of the valve, mainly for the gate valve, globe valve, check valve, ball valve, trap, needle valve, plug valve, which accounted for about 75% of the total valve. D, synthetic ammonia plant. As the synthesis of ammonia and purification methods are different, the process is different, the required technical performance of the valve is also different. At present, the domestic ammonia plant mainly need gate valve, globe valve, check valve, trap, butterfly valve, ball valve, diaphragm valve, regulating valve, needle valve, safety valve, high temperature and low temperature valve. Among them, the closing valve accounted for 53.4% of the total valve data, valve accounted for 25.1%, 7.7% of the trap, safety valve accounted for 2.4%, regulating valve and from the low temperature valve and other accounted for 11.4% .E, ethylene, ethylene Is the leading petrochemical industry, the need for a wide range of valves. Gate valve, globe valve, check valve, lift rod ball valve accounted for the majority, which gate valve to be the first. "15" plan, the country still need to build an annual output of 660,000 tons of ethylene plant 6 sets, the valve demand is considerable. In addition, large-scale ethylene and high-pressure polyethylene plant also need ultra-high temperature, the lower the temperature and ultra-high pressure valve products. F, air separation device. "Air separation" that is, air separation, the device mainly need to use cut-off valve, safety valve, check valve, control valve, ball valve, butterfly valve, low temperature valve. G, polypropylene device, polypropylene is easy to propylene as raw material, the polymerization of polymer compounds, the device mainly need to gate valve, check valve, check valve, needle valve, ball valve, trap.

7. Power station valve: China's power station construction is the direction of large-scale development, so the need for large diameter and high pressure safety valve, pressure reducing valve, globe valve, gate valve, butterfly valve, emergency shut-off valve and flow control valve, spherical sealing instrument (According to the national "15" plan, in addition to Inner Mongolia, Guizhou provinces can also build more than 200,000 kilowatts of units, other provinces and cities can only build more than 300,000 kilowatts of units).

8. Metallurgical valves: metallurgical industry, the main use of alumina wear-resistant slurry valve (in the flow cut-off valve), adjust the trap. Steel industry mainly need to use metal sealed ball valve, butterfly valve and oxidation ball valve, globe valve and four-way valve.