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Vacuum Relief Valve, Top Mount

The Groth Series 1300A is used when vacuum relief is the only requirement. Intake relief necessary under working conditions is achieved by a spring or weight loaded pallet. This feature reduces the possibility of tank damage due to an excessive vacuum condition. The 1300A Series helps to provide increased fire protection and safety. Valve size must be selected to perform required vacuum relief under operating and thermal conditions.


  • Modular Construction
  • Cushioned air seating
  • Fluoropolymer seating diaphragms minimize sticking caused by resinous vapors and atmospheric moisture
  • Self-draining housing body and drip rings to protect seating surfaces from condensate and freezing
  • Design avoids vacuum buildup due to binding or clogging of the vent

Sizes: 2” (DN50) through 12” (DN300)
Vacuum Settings: 0.5 osi TO 17.3 OSI (2.15 mbarg to 1.19 barg)
Materials: Aluminum, Carbon Steel, Stainless Steel, special materials upon request
Certification: ATEX and PED Approval


  •  Seating Diaphragm Options: FKM, Buna-N or other materials

Contact your rep to start an order or learn more.