The application of valve is now all over every corner of our life, and its role and use are also great. It has been widely used in petroleum, chemical industry, hydropower, food, medicine, light textile, papermaking, metallurgy and other industrial pipelines.

Introduce you to the application knowledge of valves:

1、 Valves for petroleum installations

1. Oil refining unit

Most of the valves required for oil refining units are pipeline valves, mainly gate valves, globe valves, check valves, safety valves, ball valves, butterfly valves and steam traps. 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 unit).

2. Chemical fiber plant

Chemical fiber products mainly include polyester, acrylic and vinylon. The required valves are ball valve and jacketed valve (jacketed ball valve, jacketed gate valve and jacketed stop valve).

3. Acrylonitrile unit

The device generally needs valves produced in scale, mainly including gate valve, stop valve, check valve, ball valve, drain valve, needle stop valve and plug valve, in which gate valve accounts for about 75% of the total valve.

4. Synthetic ammonia plant

Because synthetic ammonia and purification methods are different, their process flow is different, and the technical functions of the required valves are also different. At present, the domestic ammonia plant mainly needs gate valve, stop valve, check valve, drain valve, butterfly valve, ball valve, diaphragm valve, regulating valve, needle valve, safety valve and high temperature and low temperature valve.

2、 Application valve of hydropower station

The construction of power stations in China is developing towards large-scale, so large-diameter and high-pressure safety valves, pressure reducing valves, stop valves, gate valves, butterfly valves, emergency block valves, flow control valves and spherical seal instrument stop valves are needed.

3、 Valves for metallurgical applications

In metallurgical industry, alumina mainly needs wear-resistant slurry valve (in flow stop valve) and regulating drain valve. The application of valves in steelmaking industry mainly requires metal sealed ball valves, butterfly valves and oxidation ball valves, stop flash valves and four-way directional valves.

4、 Marine application valve

With the development of offshore oil field exploitation, the amount of valves required for offshore flat development is also gradually increasing. Offshore platforms need shut-off ball valves, check valves and multi-way valves.

5、 Valves for food and pharmaceutical applications

The industry mainly needs stainless steel ball valve, non-toxic all plastic ball valve and butterfly valve. Among the above 10 categories 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、 Application of valves in rural and urban buildings

The urban construction system generally adopts low-pressure valves. At present, it is developing in the direction of environmental protection and energy saving. The application of environmentally friendly valves, such as rubber plate valve, balance valve, midline butterfly valve and metal seal butterfly valve, is gradually replacing low-pressure iron gate valve. The valves required for domestic urban buildings are mostly balance valves, soft seal 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 directly buried ball valves are needed to solve the problem of vertical and horizontal hydraulic imbalance of pipelines, so as to achieve the purpose of energy saving and heat generation balance.

8、 Environmental protection application valve

In the domestic environmental protection system, the water supply system mainly needs midline butterfly valve, soft seal gate valve, ball valve and exhaust valve (used to remove the air in the pipeline). The sewage treatment system mainly needs soft seal gate valve and butterfly valve.

9、 Gas valve

Urban gas accounts for 22% of the whole natural market, with large consumption of valves and many types. It mainly needs ball valve, plug valve, pressure reducing valve and safety valve.

10、 Pipeline application valve

Long distance pipelines are mainly crude oil, finished products and natural pipelines. The valves with most demand for this kind of pipeline are forged steel three body full-diameter ball valve, sulfur resistant flat gate valve, safety valve and check valve.