Hydromodul-C Electronic Control

The HMC-SS electronic control valve combines the advantages of an excellent modulating line pressure driven, hydraulic control valve with the advantages of electronic control. This valve responds to signals from an electronic controller, by changing its opening position according to the set values programmed into the controller.

• PRESSURE CONTROL
• FLOW CONTROL
• LEAKAGE CONTROL
• LEVEL CONTROL

FEATURES AND BENEFITS

Line pressure driven, indipendent operation, fully automatic
Solenoid controlled:

• Low power consuption
• Wide ranges of pressure and voltages
• Normally Open, Normally Closed
• Linear position transducer
• In line service, easy maintenance
• Stainless steel raised seat, cavitation damage resistant (optional)
• Flexible design, easy addition of features

OPERATION
The HMC-SS valve is an Electronic Control Valve equipped with two 2-way solenoid pilots.
The interaction between the two solenoids determines the required opening position as signaled by the dedicated electronic controller.
The upstream solenoid (1) applies pressure to the upper control chamber (3) harnessing valve differential pressure to push the diaphragm actuator to a more closed position. The downstream solenoid (2) vents upper control chamber (3) pressure resulting in a more open main valve. Needle valves (4) and (5) control the closing and opening speed of the valve. Valve position is provided by an analog transducer. In cases where pipeline water is contaminated (corrosive, debris laden) external control fluid is often used.