Groth Pilot Operated Relief Valve with Vacuum Breaker

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.

• Ease of precision settings
• Only the pilot needs to be set
• Lower profile and weight than spring operated models for high settings
• Remote pilot sensing option allows the pilot to sense the true system pressure
• Remote or manual blowdown available
• Main valve remains tight to set pressure
• Full open at 10% overpressure
• Modulating action conserves product
• Soft seating creates tight seal to conserve product and minimize valve wear
• Top entry allows valve to be services without removal from mounting