The Watts Ductile Iron Two-Way Flow Altitude Valve, model 960GD-17, is a pilot-operated diaphragm valve designed for controlling water levels in reservoirs or elevated storage tanks. It opens to allow flow into the tank and closes drip-tight when the high water level is reached. The valve also facilitates return flow when upstream pressure drops below the reservoir head pressure. Constructed from Ductile Iron ASTM A536, the valve features a hydraulically operated, single diaphragm actuated design, ensuring reliable operation. The diaphragm is made of nylon reinforced Buna-N and is fully supported by the valve body and cover, avoiding direct sealing against the valve seat. The valve includes a disc and diaphragm assembly that is guided by two separate bearings to ensure positive contact with the seat. The pilot control system consists of an Altitude Pilot, a 3-Way Accelerator Pilot, check valves, adjustable speed controls, and a visual position indicator. All necessary repairs can be performed from the top of the valve while it remains in line, enhancing maintenance efficiency. The valve is suitable for applications requiring precise water level control and durability in demanding environments.
Designed to open, allowing flow into a reservoir or elevated storage tank (tank fill), and close drip tight when high water level is achieved. The valve also opens allowing return flow (tank discharge), when upstream pressure falls below reservoir head pressure. It controls water level by remotely sensing static tank head pressure through a field installed sensing line, and opens when the water level is below the adjustable setpoint and closes drip tight when the level is above the adjustable setpoint.
| Watts | |
|---|---|
| Product Category | Industrial Valves |
| Product Number | 960GD-17 |
| Product Name | Ductile Iron Two-Way Flow Altitude Valve |
| Valve Type | Altitude Valve |
