ACL Series 124 2/2 Way Normally Closed Solenoid Valve

The ACL Brass Servo Assisted Piston Valve(NC) - 1/2 inch is part of the Series 124 range of servo-assisted piston solenoid valves. This configuration uses a brass valve body and a 1/2" connection, providing an electrically controlled on/off solution for compatible fluid circuits. ACL identifies Series 124 for applications involving fluid management and automated control, with the exact pressure and flow capability dependent on the selected connection and configuration.

Port-Specific Performance

For the 1/2" version, ACL documentation lists an orifice of 12 mm and a differential-pressure range of 3–100 bar. The 1/2" configuration has a documented flow coefficient of 60 l/min.

Construction and Operation

The valve uses servo-assisted piston technology. This type of construction uses the solenoid and pilot mechanism to control the main fluid passage, making it suitable for automated switching in systems where electrical control of a fluid line is required. The documented seal materials for this series are Main seal PTFE; other seals FPM.

Key Features

• 2/2 Way Normally Closed valve configuration
• Servo-assisted piston actuation
• Brass body construction
• 1/2" connection for this product configuration
• Maximum fluid viscosity documented by ACL: 12 cSt (mm²/s)
• Preferred mounting position: preferably with coil upward

Applications

ACL positions Series 124 for air and water shut-off. Typical suitability depends on the actual fluid, pressure, temperature, seal selection and valve configuration, so the final application should be checked against the manufacturer's compatibility information.

Important Configuration Notes

ACL states that a minimum operating pressure of 3 bar is required. The documented configuration uses PTFE as the main seal. Coil voltage, coil power and seal selection are configuration-dependent and are therefore not assumed here unless they are explicitly specified by the product SKU.

Why Choose an ACL Servo-Assisted Valve?

ACL's servo-assisted valve range is designed for controlled fluid shut-off in automated systems. The combination of an electrically controlled solenoid, series-specific body materials and defined port/orifice combinations allows engineers to select a valve according to connection size, pressure requirements and fluid compatibility.