High temperature and high pressure welded gate valve
The High Temperature and High Pressure Welded Gate Valve is designed for demanding industrial applications involving extreme temperatures and pressures. Featuring a fully welded connection structure, pressure-sealed bonnet, and hard-faced sealing surfaces, it ensures leak-free operation, enhanced durability, and long service life in power generation and process industries.
High temperature and high pressure welded gate valve
High Temperature and High Pressure Welded Gate Valves are specifically engineered for severe operating conditions found in power plants, petrochemical facilities, oil and gas processing systems, and industrial steam pipelines. The welded-end design eliminates flange leakage risks and provides superior structural integrity under thermal cycling and high-pressure environments.
Manufactured from premium alloy steel and forged steel materials, these valves offer excellent resistance to temperature, pressure, corrosion, and erosion. Precision-machined sealing surfaces and advanced hard-facing technology ensure dependable shut-off performance and extended operational lifespan.
We provide comprehensive OEM and ODM manufacturing solutions for global industrial valve distributors, EPC contractors, and power plant projects.
Our High Temperature and High Pressure Welded Gate Valves are manufactured under strict quality control systems and can be supplied with:
High temperature and high pressure welded gate valve
| Parameter | Specification |
|---|---|
| Product Name | High Temperature and High Pressure Welded Gate Valve |
| Design Standard | API 600, ASME B16.34, GB/T |
| Size Range | DN50 – DN1200 (2" – 48") |
| Pressure Rating | PN40 – PN420 / Class 300 – 2500 |
| Working Temperature | -29°C to 650°C |
| Body Material | WC6, WC9, C5, C12A, F22, F91, Stainless Steel |
| Disc Type | Flexible Wedge / Solid Wedge |
| Connection Type | Butt Welded Ends |
| Bonnet Type | Pressure Seal Bonnet |
| Operation | Manual, Gear, Electric, Pneumatic |
| Stem Type | Rising Stem |
| Sealing Surface | Stellite Alloy Hard-Faced |
| Applicable Media | Steam, Water, Oil, Thermal Oil, Gas |
| Leakage Standard | API 598 |
| Testing Standard | API 598, ISO 5208 |
| Service Life | 20+ Years |
High temperature and high pressure welded gate valve
Main steam systems, boiler outlets, reheater pipelines, and turbine auxiliary systems.
High-integrity steam and cooling water pipeline isolation.
High-pressure process units and refinery steam networks.
Pipeline isolation and flow control under extreme operating conditions.
High-temperature fluid handling and utility steam systems.
Heat recovery systems, steam generation, and energy transfer pipelines.
District heating and centralized steam distribution systems.
Critical shut-off applications requiring maximum reliability and leak-free operation.
Material customization plan
Customized 316L stainless steel valves forGerman chemical enterprises. Resistant tostrong corrosion, suitable for their acidicmedium transportation systems, with aservice life extended to over 8 years.
Structural optimization design
For the Saudi desert project, the valve stemsealing structure was changed to a doublebellows design to address the leakage issuein the high-temperature and dustyenvironment, and it was highly recognizedby the customers.
Interface standard adaptation
Customized API 600 standard valves for acertain company in the United States. Theflange size is fully compatible with ANSIB16.5, ensuring zero error during on-siteinstallation and reducing the constructionperiod by 30%.
