A 3-way relay valve, activated by hydraulic or pneumatic pressure command, opens or closes the main valve. The standard valve is supplied in the "normally closed" position.
The "normally open" position is optional. Hydraulic activation can be added to other control applications on request.
Features
• Fast response even for long control lines
• Simple and reliable design
• Can be added as pressure command over-ride to any other control function
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 position will
be controlled by a hydraulic relay. The valve and the controls will be a Dorot Series 100 valve or similar in all aspects.