GEMÜ R90

The GEMÜ R90 metal disco check valve provides extreme temperature backflow prevention for demanding industrial applications. The GEMÜ R90 accommodates nominal sizes from DN 15 to DN 300, regulates operating pressures up to 50 bar, and withstands media temperatures ranging from -196°C to 400°C. Key Performance Capabilities: Extreme Temperature Resilience: The GEMÜ R90 features a metallic seal option combined with a Hastelloy C4 compression spring, maintaining structural integrity and flow isolation in high heat industrial environments up to 400°C to eliminate unplanned component replacement downtime. Active Flutter Prevention: The GEMÜ R90 integrates a specialised disc guide, preventing disc tilting and mechanical flutter during fluid transfer to reduce internal wear and extend the operational lifespan of the pipeline system. Guaranteed Flow Isolation: The GEMÜ R90 achieves EN 12266-1/P12 leakage rate A (with plastic seal) and leakage rate G (with metallic sealing) tight sealing, preventing backflow and costly fluid loss across critical processing networks. Safety & Compliance: Sanitary & Potable Water Compliance: The GEMÜ R90 achieves FDA, KTW and DVGW Drinking water conformities (when configured with specific EPDM seals), ensuring plant engineers can standardise one metal check valve across strict sanitary and water distribution lines. Explosive Environment Security: The GEMÜ R90 secures ATEX compliance, preventing ignition risks to guarantee facility safety and continuous operation within volatile industrial zones. Note: The maximum operational media temperature, pressure and vacuum resistance depend strictly on the specific seal material and spring configuration selected for the GEMÜ R90.