Guardian Fire Equipment, Inc. - Manufacturer and Supplier of Quality Fire Fighting Equipment

Swing and Wafer Check Valves

Models 6420 - 6422
  • Used to prevent water backflow, UL listed/FM approved
  • Cast brass construction
  • Model 6420: Swing check valve, 4" groove x groove
  • Model 6421: Swing check valve, 4" NPT male x groove
  • Model 6422: Swing check valve, 4" NPT male x NPT female
Models 6426 - 6428
  • Used to prevent water backflow, UL listed/FM approved
  • Cast iron construction
  • Model 6426: Wafer check valve, 4"
  • Model 6428: Wafer check valve, 6"