Dual Valve Actuation

The Dual Valve Actuation Range
The Dual Valve Actuators have all been designed to have an impact strength of 4012OD ft-lbs, which makes the actuator much more dent-resistant than aluminium or brass.
What Makes the Actuators Unique?
The composite tubing is protected by a stainless steel cover to add extra protection against abuse in the plant. Both the piston rod and seal are protected by a wiper ring which cleans the piston rod before it is passed through the lip seal contributing to extended actuator life.
What Pressure Can the Actuators Take?
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We have constructed actuators that have been built to a working pressure of 10 Bar.
Actuator Construction
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The actuators are constructed from Carbon Steel or Aluminium and Epoxy Coated with Stainless Steel components.
Fail Safe Spring (Options)
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Single-Acting Actuators consist of either a fail-close spring, which is pre-loaded to provide enough force to close and seal the sleeve upon air loss, or a fail-open spring, which drives the valve open upon air loss.
Fail-open spring Actuators are used primarily in low pressure or partial vacuum services, where the line pressure is not sufficient to fully open the valve.

DDAPA - Dual Double Acting Pneumatic Actuator
Dual’s Pneumatic actuators have been designed to have an impact strength of 4012OD ft-lbs, which makes the actuator much more dent-resistant then aluminium or brass.

DBG - Dual Bevel Gearbox
The Bevel Gearbox is designed to accept the full thrust forces which occur during opening and closing of the valve, reducing manual rim effort when operating.
Other Services
Valve Repairs
Dual Valves can repair valves that have been damaged due to wear and tear from usage on slurry and other lines.
Actuation
Dual Valves can be fitted with various different types of actuators, Hydraulic, Pneumatic and Electric.
Sandblast & Paint Spec
We use shot-blast, 2.5 grit on all Dual valves and a 2 stage Epoxy coat to ensure the best quality and longevity on site.
Head Office
166 Rotterdam Road, Apex Industrial, Benoni, Gauteng, South Africa
Call Us
(+27) 11 422-4326/7