Original Heavy Duty Check Valve S/521 for Norgren Herions Solenoids S/522

Original Heavy Duty Check Valve S/521 for Norgren Herions Solenoids S/522. Robust Aluminum Construction: Made from high-quality aluminum for durability and longevity in demanding environments. Pilot Operated Design: Features a pilot piston structure for precise control and smooth operation. Versatile Industrial Usage: Suitable for safety, emptying, drainage, temperature control, and flow control. Easy Installation: Compact design with versatile mounting options for convenient setup. Thread Connection: Standard BSW thread connection for secure and reliable attachment. Electric Actuator: Powered by AC solenoid valve for efficient and automated operation.