Groth Pressure & Vacuum Relief Valve (PVRV) w/ Pipe-Away – Conservation Valve

Pressure ranges below 1 PSIG
Vacuum ranges below 1 PSIG

Model 1220A PVRV 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.

• 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
• Compliant to API-2000 and ISO 28300 standards