Vacuum Relief Valve, Top Vent, Spring Loaded

Model 1301A

Vacuum Relief Valve, Top Vent, Spring Loaded

The 1301A Vacuum Relief Valve is a spring-loaded version of the 1300A Vacuum Relief Valve for use at vacuums of 1 PSIG and above. See the catalog for technical information.


Size: Sizes 2" (DN50) through 12" (DN300)

Material: Available in aluminum, carbon steel, stainless steel, fiberglass and other materials

Vacuum: 1 psig to 12 psig (68.9 mbarg to 827 mbarg)

Certification: ATEX and PED Approval


• 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


• 150# ANSI, PN10, PN16, JIS drilling classes available
• Optional materials of BUNA-N, FKM & other seating diaphragms can be provided when required
• Steam Jacket
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