Sempell Model VR500 High Pressure Check Valve

The Sempell Model VR500 High Pressure Check Valve, engineered by Emerson, is a high-performance non-return valve designed to ensure reliable flow control and backflow prevention in extreme pressure and temperature applications. Built for critical service environments such as power generation, chemical processing, and oil & gas systems, this valve guarantees long-term operational integrity and leak-free performance. The VR500 features a robust forged or cast steel body with a compact axial-flow design, minimizing pressure loss while maintaining excellent flow efficiency. Its spring-loaded disc ensures quick and stable closing action, preventing reverse flow and water hammer, even in pulsating or high-pressure systems. Engineered for high-pressure applications up to Class 4500, the Sempell VR500 combines proven German precision engineering with superior sealing technology, offering exceptional durability, minimal maintenance, and consistent reliability under severe operating conditions.

Technical Specification of Sempell Model VR500 High Pressure Check Valve

• Valve Type: High Pressure Check Valve

• Model: VR500

• Design Standards: ASME B16.34 / API 598 / DIN EN 12266

• Pressure Class: ASME Class 900 to Class 4500

• Nominal Sizes: DN 10 – DN 200 (3/8” – 8”)

• Body Material: Forged or cast carbon steel, stainless steel, or alloy steel

• Disc Type: Spring-loaded axial disc

• Seat Type: Metal-to-metal (Stellite) or soft-seated

• End Connections: Butt Weld (BW) or Socket Weld (SW)

• Temperature Range: -29°C to +600°C (-20°F to +1112°F)

• Flow Direction: Unidirectional

• Leakage Class: API 598 / EN 12266 Rate A (bubble tight)

Feature of Sempell Model VR500 High Pressure Check Valve

• Piston type check valve
• Body made of forged steel
• Wear resistant stellite body seat
• Separated guiding bush
• Return spring
• Low pressure loss
• Easy maintenance
• Code compliance with ASME B16.34 and PED