GEMÜ ZRSK

The GEMÜ ZRSK metal check valve provides space saving backflow prevention for high and low temperature industrial applications. The GEMÜ ZRSK accommodates nominal sizes from DN 32 to DN 600, regulates operating pressures up to 16 bar, and withstands media temperatures ranging from -40°C to 200°C. Key Performance Capabilities: Optimised System Footprint: The GEMÜ ZRSK uses a compact, short-length construction clamped directly between two flanges, significantly reducing weight and spatial requirements in complex pipework systems. Guaranteed Flow Isolation: The GEMÜ ZRSK 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 critical processing lines. Customised Media Resistance: The GEMÜ ZRSK offers extensive body and disc material options, including 1.4408 investment casting, 1.4469 super duplex, and 1.4571 forged material, combined with EPDM, FKM, NBR, or PTFE seals to prevent chemical degradation and lower long term component replacement costs. Safety & Compliance: Explosive Environment Security: The GEMÜ ZRSK secures ATEX 2014/34/EU compliance (for designs without manual override), preventing ignition risks to guarantee facility safety within volatile industrial zones. Sanitary & Potable Water Compliance: The GEMÜ ZRSK achieves FDA and DVGW Drinking water conformities (when configured with specific investment casting/forged materials and EPDM KTW approved seals), ensuring plant engineers can standardise one metal check valve across strict sanitary and water distribution networks. Note: The maximum operational media temperature, pressure, and vacuum resistance depend strictly on the specific nominal size and material configuration selected for the GEMÜ ZRSK.