1. Valves for petroleum installations

(1) Oil refining device. The valves used in oil refining devices are mostly pipeline valves, mainly gate valves, globe valves, check valves, safety valves, ball valves, butterfly valves, traps. Among them, gate valve requirements account for about 80% of the total number of valves (valves account for the total number of devices 3% to 5% of the investment);

(2) Chemical fiber device. Chemical fiber products mainly include polyester, acrylic and vinylon. The ball valve and jacket valve of the required valve (jacket ball valve, jacket gate valve, jacket globe valve);

(3) Acrylic sunny device. The device generally needs to use valves produced in the standard, mainly gate valves, globe valves, check valves, ball valves, steam traps, needle globe valves, plug valves, of which gate valves account for about 75% of the total amount of valves;

(4) Synthetic ammonia plant. Because the ammonia synthesis and purification methods are different, the process flow is different, and the technical performance of the required valves is also different. At present, domestic ammonia synthesis devices mainly require gate valves, globe valves, check valves, steam traps, butterfly valves, ball valves, diaphragm valves, regulating valves, needle valves, safety valves, high temperature and low temperature valves;

2. Valves for hydropower stations

The construction of power stations in China is developing in the direction of large-scale, so large-diameter and high-pressure safety valves, pressure relief valves, globe valves, gate valves, butterfly valves, emergency blocking valves and flow control valves, spherical sealing instrument globe valves are required.

3. Valves for metallurgical applications

The alumina behavior in the metallurgical industry mainly requires wear-resistant slurry valves (in-flow shut-off valves) and regulating steam traps. The steel-making industry mainly needs metal sealed ball valves, butterfly valves and oxide ball valves, cut-off flash and four-way directional valves;

4. Marine application valves

With the development of offshore oilfield exploitation, the amount of valves required for the offshore flat hair gradually increased. Off-line ball valves, check valves, and multi-way valves are required for offshore platforms;

5. Valves for food and medical applications

The industry mainly needs stainless steel ball valves, non-toxic all-plastic ball valves and butterfly valves. Among the above 10 categories of valve products, the demand for general-purpose valves is the most, such as instrument valves, needle valves, needle globe valves, gate valves, globe valves, check valves, ball valves, butterfly valves;

6. Valves for rural and urban construction applications

Urban construction departments generally use low-pressure valves, and are currently developing in the direction of environmental protection and energy conservation. Environmentally friendly rubber-plate valves, balancing valves, midline butterfly valves, and metal-sealed butterfly valves are gradually replacing low-pressure iron gate valves. Most of the valves used in urban construction in China are balance valves, soft seal gate valves, butterfly valves, etc .;

7. Valves for heating in villages and cities

In the urban heat generation system, a large number of metal-sealed butterfly valves, horizontal balance valves and direct-buried ball valves are needed. These valves solve the problem of vertical and horizontal hydraulic imbalances in the pipeline to achieve energy saving and heat generation balance.

8. Valves for environmental protection applications

In the domestic environmental protection system, the water supply system mainly needs to use the center line butterfly valve, soft seal gate valve, ball valve, and exhaust valve (used to remove air from the pipeline). Sewage treatment system mainly needs soft seal gate valve and butterfly valve;