Analyze China's valve high-tech development trend and investment direction

With the continuous development of science and technology, China's valve product market is also developing towards high-tech content, high parameters, resistance to strong corrosion, and high life expectancy. Based on the analysis of valve technology at home and abroad and the analysis of valve market demand at home and abroad, we have researched the high-tech development trend and investment direction of industrial valves and valve industries in various industries in recent years.

1. Valves for oil and gas wellhead devices

Valves for oil and gas wellheads are mainly single gate or double gate plates complying with US API 6A standards, forged steel parallel gate valves with diversion holes or diversion holes, mud valves, angular throttle valves, and oilfield-specific parallels. Type control valve, oilfield special straight-through check valve, water injection\polymer special parallel gate valve, clamp type parallel gate valve, pilot type safety valve and check valve.

Nominal pressure levels for API valves for oil and gas wells are API2000psi, 3000psi, 5000psi, 10000psi, 15000psi, 20000psi; nominal diameter is DN46~228mm (113/16in~9in); temperature grade is 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); material requirements for AA, BB, CC, DD, EE, FF, HH; material performance requirements by 36K, 45K, 60K, 75K; product technical requirements by PSL1 (product specification level 1), PSL2 (Product Specification Level 2), PSL3 (Product Specification Level 3), PSL4 (Product Specification Level 4).

2. Valves for long-distance pipelines for oil and gas

Valves used in long-distance pipelines for oil and gas are mainly single or double gate plates conforming to the United States API 6D standard, plate gate valves with diversion holes or non-distribution holes, forged steel or cast steel three-body type, top-load type or all-welded type. Fixed ball valves; oil seals or pressure balanced plug valves; swing-open or butterfly check valves, 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); fireproof test technology requirements according to ISO10497; valve pressure test according to ISO5208.