IMPACT™ - Spring Assist


In a failsafe actuator compressed air inside the actuator preloads the springs. During normal operation, each time the solenoid valve is tripped the compressed air is released into the
atmosphere through the solenoid valve’s exhaust port. The patented IMPACT™ unit diverts part of this energy to the spring chamber in order to boost the torque of the actuator by at least 50%.
The IMPACT™ also functions as a Breather Block that isolates the spring chamber from the atmosphere, and as a check valve that ensures that the temporary reduction of the compressed air pressure does not trigger movement of the valve and actuator to the mid-position. The IMPACT™ is used for on/off systems only, and cannot be used for control applications.

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Boosts the torque of any spring return actuator

One size down actuator for the same functionality

Increases system reliability

Internal Breather Block

No external energy required

Operating limits:

NAMUR interface

Single mechanical unit

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