Available in smaller pipe sizes than other solenoid flow-adjustment valves, these are often used with gas controllers and analytical instrumentation. They adjust and regulate flow based on the intensity of the electrical signal into the valve and are often integrated into PLC systems for automatic control over the valve position based on system conditions. They are normally closed unless actuated. Valves don’t require a pressure drop for operation. The actuator is directly mounted to the valve body to minimize movement and reduce wear.

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Also known as proportional solenoid valves, these adjust and regulate flow based on the intensity of the electrical signal into the valve. All are controlled with PWM signal. Valves are normally closed unless actuated. They require a minimum pressure drop between the inlet and outlet for operation; the upstream pressure must be 7 psi greater than the downstream pressure. The actuator is directly mounted to the valve body to minimize movement and reduce wear. Valves are IP65 rated to resist splashing water and dust. Add an optional cable plug for DIN connection. To program these valves, use the optional programmable logic controller (PLC). It has a DIN plug connector and can operate 4-20mA inputs.

Flow coefficient (Cv) is the amount of water (in gallons per minute) at 60° F that will flow through a fully open valve with a difference of 1 psi between the inlet and the outlet.