Actuators

Series PP
Actuators Spring Opposed Piston & Double Acting Piston

The vsL range of pneumatic piston actuators has been designed to provide powerful high performance for automatic control valves.
Corrosion resistance to aggressive environments has led to careful consideration of component selection, whilst keeping in mind the need for weight reduction.
Safety is an important consideration and spring containment has been carefully addressed so that inadvertent energy release has been eliminated.
The foregoing conditions have led to unit being designed to accept air pressure up to 10 Bar, to provide thrust and stiffness.
The end caps, piston, stems and tie bars are all either carbon or stainless steel, with the cylinder being a strong light composite material called Black Amalgon.
This careful material selection makes the actuator inherently strong, durable and corrosion resistant.
The spring is contained in a cage and the spring cap is secured with HT steel tie rods and the nuts welded in place.
This cage cartridge design prevents accidental unbolting of a pre-compressed spring and possibility of a catastrophic energy release.
A further feature is the spring being contained inside the cylinder in a protected clean environment inhibiting atmospheric degradation.
The actuator is also available as a spring-less double acting unit for even greater bidirectional thrust.
The following sizes are available as spring opposed pistons, double acting pistons or springless double acting pistons.

Specification

Actuator Type	Spring Opposed Piston, Double Acting Piston
Actuator Action	Direct / Reverse Acting
Materials	Wide range of materials available to suit application
Spring Range	See Table 1
Air Supply	20 - 150 PsIG (1.4 - 10.0 Bar)
Air Connection	1/4” or 1/2” NPT
Accessories	valve Positioners - Pneumatic, Electro-Pneumatic, smart Instruments - Airset, solenoid valve, volume Booster, Airlock, Limit switches
Features	Top or side Mounted handwheel, Limit stops

Specification Document
(117.31 KB)

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