Valve knowledge: several common valve application fields

It can be said that valves can be seen everywhere in life, whether it is a home or a factory, any building is inseparable from the valve. Next, Newsway Valve CO.,LTD will introduce to you several common valve application fields:

1. Valves for petroleum installations

①. Refining plant, most of the valves needed in oil refining plant are pipeline valves, mainly gate valve, globe valve, check valve, safety valve, ball valve, butterfly valve, steam trap, among which, the gate valve demand accounts for about 80% of the total number of valves, (The valve accounts for 3% to 5% of the total investment of the device); ②. Chemical fiber device, chemical fiber products mainly include three categories: polyester, acrylic, and vinylon. The ball valve and jacketed valve (jacketed ball valve, jacketed gate valve, jacketed globe valve) of the required valve; ③. Acrylonitrile device. The device generally needs to use standard-produced valves, mainly gate valves, globe valves, check valves, ball valves, steam traps, needle globe valves, and plug valves. Among them, gate valves account for about 75% of the total valves; ④.Synthetic ammonia plant . Because the synthesis of ammonia source and purification methods are different, the 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, globe valve, check valve, steam trap, butterfly valve, ball valve, diaphragm valve, regulating valve, needle valve, safety valve, high temperature and low temperature valve;

2. Valves used in hydropower stations

The construction of power stations in my country is developing towards large-scale development, so large-diameter and high-pressure safety valves, pressure reducing valves, globe valves, gate valves, butterfly valves, emergency shut-off valves, flow control valves, and spherical sealing instruments are required. Globe valve, (according to the national “Tenth Five-Year Plan”, in addition to Inner Mongolia and Guizhou provinces can build more than 200,000 kilowatts of units, other provinces and cities can only build more than 300,000 kilowatts of units);

3. Metallurgical application valve

In the metallurgical industry, alumina behavior mainly requires wear-resistant slurry valve (in-flow stop valve) and regulating trap. The steel-making industry mainly needs metal-sealed ball valves, butterfly valves and oxide ball valves, stop flash and four-way directional valves;

4. Marine application valves

With the development of offshore oilfield exploitation, the amount of valves required for marine flat development 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 above 10 categories of valve products, the demand for general-purpose valves is relatively high, such as instrument valves, needle valves, needle globe valves, gate valves, globe valves, check valves, ball valves, and butterfly valves;

6. Valves used in rural and urban buildings

low-pressure valves are generally used in urban construction systems, and are currently developing in the direction of environmental protection and energy saving. Environmentally friendly rubber plate valves, balance valves, midline butterfly valves, and metal-sealed butterfly valves are gradually replacing low-pressure iron gate valves. Most of the valves used in domestic urban buildings are balance valves, soft-sealed gate valves, butterfly valves, etc.;

7. Valves for rural and urban heating

In the urban heating system, a large number of metal-sealed butterfly valves, horizontal balance valves and directly buried ball valves are required. These valves solve the problem of vertical and horizontal hydraulic imbalances in the pipeline, and achieve energy saving and generation. the purpose of thermal balance.

8. Valves for environmental protection applications

In domestic environmental protection systems, the water supply system mainly requires midline 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 sealing gate valve and butterfly valve;

9. Valves for gas

City gas accounts for 22% of the entire natural market, and the amount of valves is large and there are many types. Mainly need ball valve, plug valve, pressure reducing valve, safety valve;

10. Pipeline application valves

long-distance pipelines are mainly crude oil, finished products and natural pipelines. The most commonly used valves for such pipelines are forged steel three-piece full-bore ball valves, anti-sulfur flat gate valves, safety valves, and check valves.