GEMÜ R91

The GEMÜ R91 metal dual plate check valve provides high performance backflow prevention for extreme temperature applications. The GEMÜ R91 accommodates nominal sizes from DN 50 to DN 600, regulates operating pressures up to 16 bar and withstands media temperatures ranging from -200°C to 300°C. Key Performance Capabilities: Extreme Temperature Resilience: The GEMÜ R91 features a metallic seal (code 10) option, maintaining structural integrity and flow isolation capabilities in high heat industrial environments up to 300°C. Standardised Pipeline Integration: The GEMÜ R91 incorporates a flange connection with a standardised length to DIN EN 558-1, series 16, streamlining integration and component replacement within existing industrial pipework systems. Guaranteed Flow Isolation: The GEMÜ R91 achieves EN 12266-1/P12 leakage rate A (with plastic seal) and leakage rate G (with metallic sealing) bubble-tight and drip-tight sealing, preventing backflow and costly fluid loss across demanding processing networks. Safety & Compliance: Sanitary & Specialised Gas Compliance: The GEMÜ R91 achieves WRAS conformity (when configured with EPDM seals up to 85°C) and offers an optional oil/grease-free design, ensuring plant engineers can standardise one metal check valve across potable water and specialised gas systems. Note: The maximum operational media temperature, pressure, and vacuum resistance depend strictly on the specific seal material and connection configuration selected for the GEMÜ R91.