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Dual Diaphragm Valves

The Dual Diaphragm Valve Range

The Dual Diaphragm Valves all have a high flexible diaphragm design that reduces closing forces and improves recovery to full open position. The enclosed body protects the diaphragm from the environment and contaminants in the event of diaphragm failure.

What Makes the Diaphragm Valve Unique?

The valve closes by means of air or hydraulic pressure placed on the diaphragm through the top of the valve housing. The valve acts as a built-in actuator.

What Pressure Can the Diaphragm Valves Take?

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We have constructed valves that have been built to a working pressure of 10 Bar.

Diaphragm Materials

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The Diaphragms can be constructed in a variety of materials. Natural Red or Black Rubber, Polyurethane, Neoprene, Nitrile or EPDM. All dependant on customer request and valve application.

Face to Face and Flange Drilling

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Dual can construct the valve to match any Face to Face required and any flange drilling. Please enquire with our sales team for more information.

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.



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