Valve industry-high-tech development trend and investment direction

With the continuous development of science and technology, domestic valve industry is also developing towards the direction of high technology content, high parameters, strong corrosion resistance and long life. According to the analysis of valve technology at home and abroad and the analysis of valve market demand at home and abroad, Huyue Marketing Consulting Company has drawn the development trend and investment direction of high-tech in valve and valve industry in recent years, as follows:

1. Valves for oil and natural gas wellhead installations

Valves for oil and natural gas wellhead installations are mainly single or double gates, forged steel parallel gates with or without diversion holes, slurry valves, angle throttle valves (CHOKE valves), pilot safety valves and check valves in accordance with API 6A standards. The nominal pressure levels of these valves are API 2000psi, 3000psi, 5000psi, 10000psi, 15000psi and 20000psi; the nominal diameter is DN46 engineering ~ 228mm (113/16in~9in); the temperature levels are K (-60~182 C), L (-42~182 C), P (-29~182 C), R (room temperature), S (-18~166 C), T (-18~182 C), U (-18~121 C), V (2~121 C); and the material requirements are AA, AA, V (2~121 C). BB, CC, DD, EE, FF, HH; material performance requirements according to 36K, 45K, 60K, 75K; product technical requirements according to PSL1 (product specification level 1), PSL2 (product specification level 2), PSL3 (product specification level 3), PSL4 (product specification level 4) PCB design.

2. Valves for Long-distance Oil and Natural Gas Pipelines

Valves for petroleum and natural gas long distance pipelines are mainly forged steel parallel gate valves with or without diversion holes, single or double gates in accordance with API 6D standard of the United States; forged or cast steel three-body, top-mounted or fully welded fixed ball valves; oil-sealed or pressure-balanced cock valves; swing or butterfly check valves, through ball check valves, pigging valves, etc. The nominal pressure levels of these valves are CL150 (PN2.0MPa), CL300 (PN5.0MPa), CL400 (PN6.4MPa), CL600 (PN10.0MPa), CL900 (PN15.0MPa), CL1500 (PN25.0MPa), CL2500 (PN42.0MPa); nominal diameter is DN50-1500mm (2in-60in); fire resistance test technical requirements are ISO10497; pressure test of the valves is ISO5208.　　

3. Nuclear Valves

The technical characteristics and requirements of nuclear power valves are higher than those of conventional large-scale thermal power plants. Valves generally have gate valves, globe valves, check valves, butterfly valves, safety valves, main steam isolation valves, ball valves, diaphragm valves, pressure relief valves and control valves; the highest technical parameters of representative valves are: maximum diameter DN1200 mm (nuclear Level 3 Butterfly valves), powder mixer non-gravity mixer DN800 mm (nuclear Level 2 main steam isolation valves), DN350 mm (nuclear level 1 main loop gate valves). Maximum pressure: about 1500 pounds; Maximum temperature: about 350 degrees Celsius; Medium: Coolant (water boride), etc. Requirements for the production of nuclear grade valve products: usually in accordance with the nuclear industry standards EJ, ASME, IEEE standards and RCC-M rules for the design and construction of mechanical equipment for PWR nuclear island.