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The NABIC 500 is ideal for unvented hot water heating systems needing emergency steam relief. It is easy to inspect and clean. The wetted parts are made from dezincification-resistant materials, ensuring durability. This product adheres to BS EN ISO 4126-1 standards. It offers high discharge capacity and features a Viton seat design. It is WRAS approved for 1 bar and above. Available sizes range from DN10 to DN65. The pressure setting is locked and sealed. The PTFE seating is resilient with a tight seal, and the valve includes diaphragm-protected components. A padlock feature is available, complying with M&E3 standards. A drain plug is fitted on sizes DN32 and above. The NABIC 500 is reliable and robust for critical applications.. Nabic 2 inch 500 High Lift Safety Valve - 8.5 Bar Brass N-500-050-8.5