981GD
Ductile Iron Single Chamber Pump Control Valve with Pressure Reducing Feature
981GD (Globe) and 981AD (Angle) Series is designed to minimize the surges associated with the starting and stopping of pumps, and automatically reduce pump outlet pressure to a constant lower downstream pressure regardless of varying flow rates. The valve opens at an adjustable rate upon pump start-up and closes at an adjustable rate upon pump shut-off. When the valve is near closed the limit switch is tripped, turning the pump off. The pump starts and stops against a closed valve. The solenoid pilot has provisions for manual operation in the event of power outage.
Features
- Minimizes the surges associated with the starting and stopping of pumps
- Automatically reduces pump outlet pressure to a constant lower downstream pressure regardless of varying flow rates
- Hydraulic check feature prevents flow reversal
- The Solenoid Pilot has provisions for manual operation in the event of power outage
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 |