Description
Pressure/Vacuum Relief Valve with Pressure Spring
Model: 1201B
Description
The 1200 series is designed to protect your tank from damage created 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 to provide increased fire protection and safety. The 1201B Pressure/Vacuum Relief Valve is a spring-loaded version of the 1200A PVRV for use at pressures of 1 PSIG and above.
Features
Peripheral and central seat guides ensure reliable, 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
Specifications
Size: Sizes 2″ (DN50) through 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: 0.5 osig to 12 psig (2.15 mbarg to 827 mbarg)
Certification: ATEX and PED Approval
Options
150# ANSI, PN10, PN16, JIS drilling classes available
Buna-N, Fluoropolymer, FKM and other seating diaphragms
Steam Jacket
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Technical Documents for Download (PDF)
Model 1200 Series Sales Sheet
Model 1200 Series Datasheet
Valves & Tank Equipment
General Arrangement Drawing 1201B
EU-TYPE EXAMINATION CERTIFICATE Group II Cat 1 (valves)
IOM for Models 1201B, 1202B 1203A, 1221B, 1222B, 1223A, 1261A, 1301A, 1361A, 2301A
IOM for Models 1201B, 2301A, 1261A, 1361A (Fiberglass)
