Description
The 1200 series is designed to protect your tank from damage caused by overpressure or excessive vacuum. Costly product evaporation losses due to normal tank "breathing" are greatly reduced. Because the valve retains toxic vapors, atmospheric contamination is minimized. This helps provide greater fire protection and safety. The 1201B pressure/vacuum relief valve is a spring-loaded version of the 1200A PVRV, designed for use at pressures of 1 PSIG and above.
Peripheral and central seat guides ensure reliable, repeatable performance.
A wide seat and an air-cushion seal keep leakage low long after the valve is placed in service.
The self-draining housing body and drip rings protect seating surfaces from condensate and freezing, increasing operational reliability.
Fluoropolymer seat diaphragms are standard to minimize sticking caused by resinous vapors and atmospheric moisture.
Size: 2″ (DN50) to 12″ (DN300) sizes
Material: Available in aluminum, carbon steel, stainless steel, fiberglass, and other materials
Pressure: 1 psig to 15 psig (68.9 mbarg to 1.03 barg)
Vacuum: 0.5 osig to 12 psig (2.15 mbarg to 827 mbarg)
Certification: ATEX and PED approval
Available drilling classes: 150# ANSI, PN10, PN16, JIS
Seat diaphragms: Buna-N, fluoropolymer, FKM, and others
Steam jacket
Separator