Pressure / Vacuum Relief Valve with Pressure and Vacuum Springs MODEL 1203A

The Model 1200A 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 Model 1200A retains toxic vapors, atmospheric contamination is minimized. This helps provide greater fire protection and safety. The 1203B pressure/vacuum relief valve is a spring-loaded version of the 1200A PVRV, designed for use at pressures or vacuums 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 in service.
The self-draining housing body and drip rings protect seating surfaces against condensate and freezing, increasing operational reliability.
Fluoropolymer seat diaphragms are standard to minimize sticking caused by resinous vapors and atmospheric moisture.

Size: From 2″ (DN50) to 12″ (DN300)

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: 1 psig to 12 psig (68.9 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
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