GEMÜ 8253

The GEMÜ 8253 2/2-way solenoid valve featuring a positive lift diaphragm provides electromagnetically operated flow isolation for inert gaseous and liquid media. The GEMÜ 8253 accommodates nominal sizes from DN 8 to DN 50, regulates operating pressures up to 16 bar, and withstands media temperatures ranging from -10°C to 110°C. Key Performance Capabilities: Vacuum and Low Pressure Reliability: The GEMÜ 8253 force-controlled solenoid valve operates without requiring a minimum pressure differential, guaranteeing secure flow isolation in vacuum applications and preventing process downtime during low-pressure system start-ups. Rapid Maintenance and Infrastructure Protection: The GEMÜ 8253 integrates a tool free Click-on coil replacement system to minimise operational downtime during maintenance interventions, whilst the positive lift diaphragm engineering ensures a soft closing action to mitigate fluid hammer effects and protect surrounding pipeline infrastructure from mechanical shock. Material Integration and Flow Optimisation: The GEMÜ 8253 integrates a CW617N brass or 1.4408 stainless steel body with NBR, FKM, or EPDM seals, facilitating high volumetric flow rates up to 41.0 m³/h whilst preventing chemical degradation and lowering long-term replacement costs across complex industrial fluid networks. Safety & Compliance: Explosive Environment Security: The GEMÜ 8253 ATEX version holds II 2G Ex eb mb IIC T3 Gb gas and II 2D Ex mb tb IIIB T135°C-150°C Db dust certifications alongside IECEx conformity, preventing electrostatic ignition risks to guarantee facility safety within volatile industrial zones. Potable Water and International Standards: The GEMÜ 8253 EPDM seal configuration achieves KTW drinking water approval for nominal sizes up to DN 25, whilst specific variations hold CSA conformity and comply with the 2006/42/EC Machinery Directive, ensuring plant engineers can standardise one metal solenoid valve across highly regulated international systems. Note: The maximum operational media temperature and operating pressure ranges depend strictly on the selected seal material, nominal size, and specific body configuration for the GEMÜ 8253.