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Emergency Relief Valve is designed to vent to atmosphere for emergency relief capacity above that supplied by a standard operating valve used on tanks, piping, and low pressure vessels. Emergency relief valves provide relief from excessive internal pressures which may cause tank damage.

• Can be used for emergency relief on smaller tanks.
• Peripheral and central seat guides ensure reliable and repeatable performance.
• A wide seat and air-cushion seal keeps leakage low long after the valve is put in service.
• Self-draining housing body and drip rings protect seating surfaces from condensate and freezing, increasing operational reliability.
• Fluoropolymer seating diaphragms are standard to minimize sticking caused by resinous vapors and atmospheric moisture.