B-2231-UK-11-2013-REV. C
An
Company
Body is hard anodized (40µ) as standard but can be supplied PTFE coated or
all stainless.
Twin rack pistons made from die-cast aluminium - hard anodized or from
galvanized cast steel.
End caps are made from die-cast aluminium powder polyester painted, PTFE
or nickel plated.
The pinion is high-precision and integrative, made from nickel-alloy steel.
Pre-loaded, coated high performance springs are made from corrosion resis-
tance material (only type 5051 - Spring Return Actuators).
Two independent external travel stop adjustment bolts can easily and pre-
cisely be adjusted +/- 5% at both open and close directions.
Bearings and guides made from low friction, long life compound material to
avoid direct contact between metals.
NBR o-rings provide trouble-free operation at standard temperature ranges.
For low and high temperatures FPM and Silicone are used.
Double Acting Actuator
Spring Return Actuator
Actuators
Spring Return
Double Acting
Construction - Actuators
Actuator Principle and Torque
CCW:
CCW:
CW:
CW:
Air to Port A forces the pistons outwards,
causing the pinion to turn counter clockwise
while the air is being exhausted from Port B.
Air to Port B forces the pistons inwards, caus-
ing the pinion to turn clockwise while the air
is being exhausted from Port A.
Air to Port A forces the pistons outwards,
causing the pinion to turn clockwise while the
air is being exhausted from Port B.
Air to Port B forces the pistons inwards caus-
ing the pinion to turn counter clockwise while
the air is being exhausted from Port A.
CCW is standard at Dansk Ventil Center
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 en-
ergy in the springs forces the pistons inwards.
The pinion turns clockwise while air is being
exhausted from Port A.
Air to Port A forces the pistons outwards,
causing the springs to compress. The pinion
turns clockwise while the air is being exhaust-
ed from Port B.
Loss of air pressure on Port A, the stored en-
ergy 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
A
A
A
B
B
B
B
A
A
A
A
B
B
B
B
CCW
CCW
CW
CW
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