- Control Valves - Ductile Iron
- 920 Series - Pressure Relief, Sustaining or Backpressure Control Valves
Ductile Iron Pressure Relief and Surge Anticipator Control Valve
Lead Free* Models Available
1 1/4 to 16 in. (32 to 400mm)
Designed to minimize the effects of water hammer and pressure surges resulting from: 1) Normal pump starting and stopping operations or 2) Mechanical or electrical power failure situations. The valve senses pressure changes above and below normal pumping operation directly from the pump station discharge header, and opens on either a high or low pressure signal.<br>
If discharge header pressure exceeds the adjustable setpoint, the valve opens quickly to dissipate the high pressure surge. <br>
If discharge header pressure falls below the adjustable setpoint, the valve opens in anticipation of a returning high pressure wave. This condition normally occurs during a mechanical or electrical power failure situation. <br>
The valve is equipped with a unique hydraulic accumulator closing system to avoid system siphonage.
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Disclaimer: Ames product dimensions in U.S. customary units and metric are approximate and are provided for reference only. For precise measurements, please contact Ames Technical Service. Ames reserves the right to change or modify product design, construction, specifications, or materials without prior notice and without incurring any obligation to make such changes and modifications on Ames products previously or subsequently sold.
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*The wetted surface of this product contacted by consumable water contains less than 0.25% of lead by weight.