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GKV5 Series Swing Check Valve only allows the fluids flow in one direction. The main purpose of check valves is to prevent backflow in the system. There are swing check valves and lift check valves.
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Swing Check Valve – Reliable Backflow Prevention, High-Pressure Resistant
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Size Range DN15 to DN600 (½" to 24"), custom sizes available
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Body & Bonnet Material Carbon Steel (A216 WCB), Stainless Steel (A351 CF8/CF8M), Ductile Iron (ASTM A395), Cast Iron (ASTM A126), Duplex / Super Duplex, Nickel Alloys |
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Temperature Range -29°C to +427°C (-20°F to +800°F) |
Stem / Shaft Material 304 / 316 / CF8M stainless steel, optional hardening or low-friction coating |
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Maximum Allowable Working Pressure ANSI / ASME Class 150 LB – 2500 LB, depending on size and material |
Seats & Seals Metal-to-metal, PTFE, RPTFE, PCTFE, elastomeric options for various media and temperatures |
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Packing & Gland PTFE, Graphite composite, low-temperature or high-temperature resistant |
End Connection Standards Flanged: ASME B16.5 / EN1092, Butt Weld: ASME B16.25, Threaded: NPT / BSP, Other custom connections |
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Operation Method Manual (Handwheel / Gear), Pneumatic, Electric Actuated |
Flow Orientation Horizontal, Vertical, Angle installation |
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Design Standards API 594, API 6D, ISO 14313, ASME B16.34, EN 12334
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Testing & Inspection Pressure & Leakage Test: API 598 / ISO 5208, Hydrostatic Test, NDT: X-Ray / Ultrasonic / Magnetic Particle, Functional Flow Test |
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Applications Oil & Gas pipelines, Chemical / Petrochemical, Water Treatment, Power Generation, HVAC systems, High-Pressure Industrial Fluids |
Key Highlights Reliable backflow prevention, low pressure drop, corrosion & wear-resistant, minimal maintenance, high reliability, modular & customizable design |
Highlights of Swing Check Valves

Bolted cover construction ensures reliable sealing and easy maintenance.
Available in Swing Type (for horizontal or vertical pipelines) and Lift Type configurations.
Seat options: Renewable seat ring or integral seat design for extended service life.
End connections available in Flanged Ends, Butt-Welding Ends, Socket Weld Ends, and Screwed Ends.
Suitable for installation in both horizontal and vertical lines.
Standrad of Swing check valve

Design & Manufacture: API 602 / ANSI B16.34
Face-to-Face Dimensions: ANSI B16.10
End Flanges: ANSI B16.5
Butt-Welding Ends: ANSI B16.25
Socket Weld & Threaded Ends: ANSI B16.11
Pipe Threads: ANSI B1.20.1
Inspection & Testing: API 598
GKV-526 flange check valve is applied in multiple industries
Petrochemical and natural gas industries
Steel and Chemical Industry
Ship and Ocean Engineering
Environmental Protection and Industrial Water Treatment