The main application areas of 10 categories of valves.
1: Valves for petroleum installations;
1" Oil refining equipment, most of the valves used in oil refining equipment are pipeline valves, mainly gate valves, stop valves, check valves, safety valves, ball valves, butterfly valves, and traps. Among them, the demand for gate valves accounts for about 80% of the total number of valves. (Valves account for 3% to 5% of the total investment of the device);
2" Chemical fiber device, chemical fiber products mainly include polyester, acrylic and vinylon. Ball valves and jacketed valves (jacketed ball valves, jacketed gate valves, jacketed stop valves) of the valves they need;
3" Acrylonitrile installation. This device generally requires standard valves, mainly gate valves, globe valves, check valves, ball valves, traps, needle globe valves, and plug valves. Among them, gate valves account for about 75% of the total valve;
4" Synthetic ammonia plant. Because the ammonia source and purification method are different, the process flow is different, and the technical function of the required valve is also different. At present, domestic ammonia plants mainly need gate valves, globe valves, check valves, traps, butterfly valves, ball valves, diaphragm valves, regulating valves, needle valves, safety valves, high temperature and low temperature valves;
2: Valves used in hydropower stations: my country's power station construction is developing towards large-scale, so large-caliber and high-pressure safety valves, pressure reducing valves, stop valves, gate valves, butterfly valves, emergency blocking valves and flow control valves, spherical seals are needed Instrument shut-off valve, (according to the national "Tenth Five-Year Plan", in addition to Inner Mongolia and Guizhou provinces can build units with more than 200,000 kilowatts, other provinces and cities can only build units with more than 300,000 kilowatts);
3: Valves for metallurgical applications: In the metallurgical industry, the behavior of alumina mainly requires the use of wear-resistant slurry valves (in-flow stop valves) and regulating traps. The steelmaking industry mainly needs metal sealed ball valves, butterfly valves and oxidation ball valves, stop flash and four-way reversing valves;
4: Valves for marine applications: With the development of offshore oilfield exploitation, the amount of valves required for marine applications has gradually increased. Offshore platforms need to use shut-off ball valves, check valves, and multi-way valves;
5: Valves for food and medicine applications: Stainless steel ball valves, non-toxic all-plastic ball valves and butterfly valves are mainly used in this industry. Among the 10 types of valve products, the demand for general valves is more, such as instrument valves, needle valves, needle globe valves, gate valves, globe valves, check valves, ball valves, and butterfly valves.
6: Valves for rural and urban construction applications: The urban construction system generally uses low-pressure valves, and is currently developing in the direction of environmental protection and energy saving. Environmentally friendly rubber plate valves, balance valves, centerline butterfly valves, and metal seal butterfly valves are gradually replacing low-pressure iron gate valves. Most of the valves used in domestic urban construction are balance valves, soft-sealed gate valves, butterfly valves, etc.;
7: Valves for rural and urban heating: In the urban heat generation system, a large number of metal-sealed butterfly valves, horizontal balance valves and direct-buried ball valves are required. These valves solve the problem of vertical and horizontal hydraulic imbalance of pipelines and achieve energy saving and replacement. The purpose of heat balance.
8: Valves for environmental protection applications: In the domestic environmental protection system, the water supply system mainly needs centerline butterfly valves, soft-sealed gate valves, ball valves, and exhaust valves (used to remove air in the pipeline). The sewage treatment system mainly needs soft-sealed gate valves and butterfly valves;
9: Valves for gas: City gas accounts for 22% of the entire natural market. The amount of valves is large, and there are many types of valves. Mainly need ball valve, plug valve, pressure reducing valve, safety valve;
10: Valves for pipeline applications: Long-distance pipelines are mainly crude oil and natural pipelines. The most commonly used valves for this type of pipeline are forged steel three-piece full bore ball valves, anti-sulfur flat gate valves, safety valves, and check valves.