MODEL 22E

Emergency Relief Valve

The Groth Model 22E Emergency Relief Valve is designed to provide superior sealing and industry leading high flow rates. When properly sized, the high flow capacity will help protect the tank from damage in an emergency event. Additionally, the emergency relief valve, a quick-opening valve that reaches full open at 10% overpressure, ensures rapid and efficient pressure relief when needed most.

Features

  • Modern manufacturing processes result in superior seals which reduce leakage and fugitive emissions
  • Engineered for industry leading flow to better protect against excessive pressure build up
  • Direct replacement for any standard ASME #150, API 12, or API 650 emergency relief valve
  • Easy maintenance reduces downtime and operational costs
  • Sizes: 4”, 6”, 8”, 10”, 12”, 16”, 20”, and 24”
  • Bolting: ASME 150# for 4” thru 24”, API 650 for 20” and 24”, and API 12 for 8” only
  • Available Pressure Settings: 6.92 to 69.2 inWC (17.2 to 172 mbarg) [4” thru 12” sizes], and 13.8 to 69.2 inWC (34.5 to 172 mbarg) [16” thru 24” sizes]
  • Leak Rate of no more than 1 SCFH of air at 90% of set pressure
  • Base & Arm: Carbon Steel or Stainless Steel
  • Diaphragm Materials: Buna-N (black), FKM (blue) or FEP (clear)
  • Pallet: Stainless Steel
    • Aluminum for 8” size pressure setting between 6.9 inWC through 9.5 inWC only
  • Weld Overlay Seat: Stainless Steel (standard feature for CS base)
  • Visit the Groth Sizing Program for flow data customized to your application
    • Flow test equipment, methods, and tests are LRQA witnessed and approved to be compliant with API 2000/ISO 28300.

Contact your rep to start an order or learn more.