The valve maintains a preset downstream pressure, regardless of upstream pressure or flow rate fluctuation.
The main valve is controlled by either a 3-way pilot valve (allowing full opening when upstream pressure drops below the pressure set-point), or by a 2-way pilot valve (creatinga minimal differential in open position).
Features
• Accurate, stable control from no-flow to full flow
• Simple and reliable design
• Exceptionally low losses at high flow
• WRAS Approval no. 04251
Purchase Specifications
The valve will be hydraulic, direct sealing diaphragm type, which allows inline maintenance. No stem, shaft or guide
bearing will be located within the water passage.
The valve will be activated by the line pressure or by an external hydraulic or pneumatic pressure. The valve will
be operated by a pressure reducing pilot valve to achieve constant outlet pressure, regardless of upstream pressure or flow variations. The valve and the controls will be a Dorot Series 100 valve or similar in all aspects.