Axial flow check valve
The Axial Flow Check Valve is designed with a streamlined axial flow path and spring-assisted closing mechanism. It minimizes turbulence, pressure drop, and flow resistance while providing rapid closure to prevent reverse flow. Ideal for high-velocity fluid systems, it offers superior reliability, energy efficiency, and long service life in demanding industrial applications.
Axial flow check valve
The Axial Flow Check Valve is a high-performance non-return valve engineered to provide efficient backflow prevention in critical flow systems. Unlike conventional swing or lift check valves, its streamlined internal structure allows fluid to pass directly through the valve body, significantly reducing pressure loss and improving flow efficiency.
The spring-assisted disc closes instantly when flow stops, minimizing water hammer and protecting pumps, compressors, turbines, and pipeline equipment. Available in forged steel, cast steel, stainless steel, duplex steel, and special alloy materials, the valve is suitable for high-pressure, high-temperature, and corrosive service conditions.
Our Axial Flow Check Valves are manufactured and tested according to international standards:
Axial flow check valve
| Parameter | Specification |
|---|---|
| Product Name | Axial Flow Check Valve |
| Valve Type | Spring-Assisted Axial Flow Check Valve |
| Nominal Size | DN50 – DN2000 |
| Pressure Rating | PN16 – PN420 |
| ANSI Class | Class 150 – Class 2500 |
| Body Material | Carbon Steel, Stainless Steel, Duplex Steel, Alloy Steel |
| Disc Material | Stainless Steel, Duplex Steel, Stellite Overlay |
| Spring Material | SS304, SS316, Inconel X-750 |
| Connection Type | Flanged, Butt Weld, RTJ |
| Installation | Horizontal or Vertical |
| Temperature Range | -196°C to +650°C |
| Leakage Standard | API 598 / ISO 5208 |
| Design Standard | API 594, API 6D, ASME B16.34 |
| Applicable Media | Water, Oil, Gas, Steam, LNG, Chemical Fluids |
Axial flow check valve
Protects compressors, pumps, and transmission pipelines from reverse flow and surge pressure.
Suitable for liquefied natural gas storage, transportation, and low-temperature process systems.
Used in boiler feedwater systems, steam pipelines, cooling water circuits, and turbine protection systems.
Prevents backflow in process units handling hydrocarbons and corrosive chemicals.
Provides fast closure and equipment protection at compressor discharge pipelines.
Reliable operation in offshore platforms, FPSO systems, and marine process pipelines.
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%.
