DOROT 31-10A, is a 3-way, Diaphragm-actuated, Spring-loaded Pilot Valve, designed to control pressure-operated hydraulic valves. The pilot valve operates as a selector between the common port and two other ports.
Operation principle
The pilot will vent and pressurize the main valve control chamber to open or close, as a factor of the regulated pressure value. The pilot valve will block all ports, thus maintaining the position of the main valve when water levels are lower than the closing level, or higher than the opening level.
This pilot valve model is made of sturdy, high-quality materials with an enlarged diaphragm that enables high sensitivity to pressure variations at the sensor port. Even the slightest rise or fall in water levels will trigger an immediate change in pilot valve positioning. The ratio between high and low water levels is adjustable.
Product Page (PDF)
Size Unit
Pressure rating
Pressure adjustment range
Max. working temperature
Port connections
Standard construction materials
Body and Bonnet
Brass
Diaphragm housing
POM
Elastomers
NBR
Internal Parts
Stainless Steel
Spring
Stainless Steel
* Other optional materials available upon request