B-505-UK-11-2013 REV. B
An
Company
Type 505 Spring Return - Principle and Torque
Spring Return Actuators
Output Torque - Spring Return Actuators (Unit: Nm)
CCW:
Air to Port A forces the pistons outwards, causing the
springs to compress. The pinion turns counter clockwise
while the air is being exhausted from Port B.
Loss of air pressure on Port A, the stored energy in the
springs forces the pistons inwards. The pinion turns
clockwise while air is being exhausted from Port A.
CW:
Air to Port A forces the pistons outwards, causing the
springs to compress. The pinion turns clockwise while
the air is being exhausted from Port B.
Loss of air pressure on Port A, the stored energy in the
springs forces the pistons inwards. The pinion turns
counter clockwise while air is being exhausted from Port
A.
CCW is standard at Dansk Ventil Center
A B
A B
A B
A B
Valves with a difference
8
