Swing and Wafer Check Valves
Models 6420 - 6422
- Used to prevent water backflow
- 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
- Ductile iron construction
- Model 6426: Wafer check valve, 4", 1/2" plug for ball drip on 4" only
- Model 6428: Wafer check valve, 6"
Contact Guardian for current approvals.