ASCO Pilot Valves (Solenoid Type)

Product Overview

Direct Acting ASCO Pilot Valves

With direct acting pilot valves all the energy for the operation is derived from electrical energy that is transformed into mechanical movement in the solenoid operator. Since the required force is equal to the surface times pressure (F= PxA), the larger the orifice/flow the higher the required electrical power. The advantage is its simplicity and reliability. For small flows and 2/2 and 3/2 solenoid valves it is also very cost efficient.

Direct Acting Pilot Valves

• Energy for the operation comes from the solenoid operator
• High electrical power level for high flows
• Operates from zero pressure differential (electrical power only)
• No bleed holes or bleed channels
• Less risk of valve malfunction
• Also selected for standardization

Pilot Operated Valves

• Pressure is assisting the valve operation
• Lower electrical power level
• Needs minimum pressure differential for operation
• Bleed holes or channels
• More economical choice of valve for higher flow values

Mounting pilot valve options:

1. Pilot valve directly mounted on the actuator
2. Pilot valve remotely mounted/centralised
3. Pilot valve integrated in the actuator or process valve