Valve usage scenarios

A detailed introduction to the types of valve products in our country. Valves can be divided into 10 major categories according to the needs of different industries, with more than 3500 varieties and over 40000 specifications. There are over 2300 valve manufacturers in China.

Detailed introduction of valve product types:
1. Valves for urban gas: Urban gas accounts for 22% of the entire natural gas market, with a large amount of valves and various types. We mainly need ball valves, plug valves, pressure reducing valves, and safety valves.
2. Valves for urban heating: In urban heat generation systems, a large number of metal sealed butterfly valves, horizontal balance valves, and buried ball valves are required to solve the problem of longitudinal and transverse hydraulic imbalance in pipelines, achieving energy-saving and heat generation balance.
3. Valves for urban construction: Low pressure valves are generally used in urban construction systems, and are currently developing towards environmentally friendly and energy-saving directions. Environmentally friendly rubber plate valves, balance valves, centerline butterfly valves, and metal sealed butterfly valves are gradually replacing low-pressure iron gate valves. Domestic urban buildings require valves such as balance valves, soft seal gate valves, butterfly valves, etc.
4. Environmental protection valves: In domestic environmental protection systems, water supply systems mainly require centerline butterfly valves, soft seal gate valves, ball valves, and exhaust valves (used to remove air from pipelines). The sewage treatment system mainly requires soft sealed gate valves and butterfly valves.
5. Valves for long-distance pipelines: Long distance pipelines are mainly used for crude oil, finished products, and natural pipelines. The most commonly used valves for this type of pipeline are forged steel three body full bore ball valves, sulfur resistant flat plate gate valves, and safety valves, check valve .
6. Valves for petrochemical plants:
a, The valves required for refining units are mostly pipeline valves, mainly gate valves, globe valves, check valves, safety valves, ball valves, butterfly valves, and drain valves. Among them, gate valves account for about 80% of the total number of valves (valves account for 3% to 5% of the total investment of the unit).
b、 Chemical fiber equipment, chemical fiber products mainly include three categories: polyester, acrylic, and viscose. The required valves include ball valves, jacket valves (jacket ball valves, jacket gate valves, jacket globe valves).
c、 Acrylic plant. This device generally requires valves produced according to API standards, mainly including gate valves, globe valves, check valves, ball valves, drain valves, needle valves, and plug valves. Among them, gate valves account for about 75% of the total number of valves.
d、 Synthetic ammonia plant. Due to the different synthesis and purification methods of ammonia, the process flow is different, and the technical performance of the required valves is also different. At present, domestic synthetic ammonia plants mainly require gate valves, globe valves, check valves, drain valves, butterfly valves, ball valves, diaphragm valves, regulating valves, needle valves, safety valves, and high-temperature and low-temperature valves. Among them, globe valves account for 53.4% of the total valve data for the device, gate valves account for 25.1%, drain valves account for 7.7%, safety valves account for 2.4%, and regulating valves, low-temperature valves, and others account for 11.4%
e、 Ethylene plant, which is the leading plant in petrochemical industry, requires a wide variety of valves. Gate valves, globe valves, check valves, and lift rod ball valves make up the majority, with gate valves taking the lead. According to the 15th Five Year Plan, the country still needs to build 6 sets of ethylene plants with an annual output of 660000 tons, and the demand for valves is considerable. In addition, large-scale ethylene and high-pressure polyethylene plants also require ultra-high temperature, lower temperature, and ultra-high pressure valve series products.
f、 Air separation unit. Air separation "refers to air separation, which mainly requires shut-off valves, safety valves, check valves, regulating valves, ball valves, butterfly valves, and low-temperature valves.
g、 Polypropylene plant, polypropylene is a polymer compound formed by polymerization of propylene as raw material. The plant mainly requires gate valves, globe valves, check valves, needle valves, ball valves, and drain valves.
7. Valves for power stations: China's power station construction is developing towards large-scale, so large-diameter and high-pressure safety valves, pressure reducing valves Fluorine lined DC globe valve Gate valves, butterfly valves, emergency shut-off valves and flow control valves, spherical sealed instrument globe valves, (according to the national "15th Five Year Plan", except for Inner Mongolia and Guizhou provinces, which can build units of more than 200000 kilowatts, other provinces and cities can only build units of more than 300000 kilowatts).
8. Metallurgical valves: In the metallurgical industry, the behavior of alumina mainly requires wear-resistant slurry valves (flow type globe valves) and regulating drain valves. The steelmaking industry mainly requires metal sealed ball valves, butterfly valves, oxidation ball valves, globe valves, and four-way directional valves.
9. Marine flat use valves: With the development of offshore oil field exploitation, the number of valves required for marine flat use is gradually increasing. Ocean platforms require shut-off ball valves, check valves, and multi way valves.
10. Valves for food and medicine: This industry mainly requires stainless steel ball valves, non-toxic all plastic ball valves, and butterfly valves. Among the 10 major categories of valve products mentioned above, the demand for general valves is relatively high, such as instrument valves, needle valves, gate valves, globe valves, check valves, ball valves, and butterfly valves.

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