Simple to use direct acting upstream pressure sustaining pilot valve The Niagara Pressure Sustaining Valve is a Hydraulically operated, diaphragm actuated control valve that sustains minimum present Upstream (back) pressure and opens fully When line pressure is in excess of setting General Features: Line pressure Driven, Hydraulically controlled Prioritizes pressure zones Ultra-high flow capacity-Low pressure loss Controls system fill-up Opens fully upon Line pressure rise Unitized Flexible super travel (FST) Diaphragm and Guided Plug Accurate and stable regulation with smooth closing Engineered Plastic Valve with Industrial Grade design Highly durable, chemical and cavitation resistant No internal bolts and nuts hYflow ‘Y’ Valve body with “Look Through” Design Typical Application: Line Fill-up Control Solutions Line Emptying Prevention Systems Subject to varying supply pressure Infield Filters Backwash Pressure Sustaining Energy Saving Irrigation Systems Requires low opening and actuation pressure Prevents diaphragm erosion and distortion Simple in-Line Inspection and Service
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