77

Class 900 Carbon Steel or Stainless Steel Sure Check Valves

  • Dual shaft design allows interchangeability of shafts
  • Torsion springs close valve prior to flow reversal and provide long sealing capability
  • High pressure elastomer seats available for sizes 4 inches and up
  • Compact design with short face-to-face dimensions minimizes space requirements

Select options below to identify the UPC, Order Code, and Repair Kit for a specific 77

Approval/Certification Information

For product-specific approval information, please refer to the product’s specification sheet (see literature section above) or ask a Watts representative. For general information regarding any approval certification partners identified in the specification sheet, please visit our certification partners’ websites:


ASSE CSA FM Approvals NSF
UL ULC USC WQA