77
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Class 900 Carbon Steel or Stainless Steel Sure Check Valves
Series 77 Class 900 Carbon Steel or Stainless Steel Sure Check Valves are designed for use with liquids and gases where flow reversal can cause surge and water hammer.
Features
- 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
Literature
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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 |