Description
Pressure/Vacuum Relief Valve w/ Pipe-Away
Model: 1220A
Description
Model 1220A is used for pressure and vacuum relief where vapors must be piped away. Escaping vapors are piped away through a flanged outlet connection. This helps to provide increased fire protection and safety.
Features
The flanged outlet connection allows escaping vapors to be piped away, instead of released directly to the atmosphere
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: 2″ (DN 50) through 12″ (DN 300)
Material: Available in aluminum, carbon steel, stainless steel, fiberglass and other materials
Pressure: 0.5 osig to 15 psig (2.15 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 1220 Series Datasheet
Valves & Tank Equipment
General Arrangement Drawing 1220A
IOM for Models 1200A, 1220A, 1260A, 1300A, 1360A, 2300A
IOM for Models 1200A, 1220A, 1260A, 1300A, 1360A, 2300A, 1720A, 1760A (Fiberglass)
