900GD-16
Dual Chamber - Full Port with Mechanical Check Feature
Series 900GD-16 (Globe) and 900AD-16 (Angle) are Ductile Iron, full port, dual chamber basic valves that incorporate a two-piece telescoping disc and diaphragm assembly. When pressure is applied to the upper diaphragm chamber and released from the lower diaphragm chamber, the valve travels to a closed position. When pressure is applied to the lower diaphragm chamber and released from the upper diaphragm chamber the valve travels to a full open position. The lower portion of this two-piece assembly is a mechanical check feature, which acts independent of diaphragm position or pilot control system, and provides immediate check action when flow ceases.
Features
- Full port, dual chamber basic valve with a two-piece telescoping disc and diaphragm
- Opens and closes in response to pressure on the upper and lower diaphragm chambers
- A mechanical check feature acts independent of diaphragm position or pilot control system and provides immediate check action when flow ceases
- Sizes 2 in. to 16 in. (50mm to 400mm)
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:
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| UL | ULC | USC | WQA |