(+27) 11 422 4326/7 sales@dualvalves.com
Select Page

Dual Diaphragm Valves

The Dual Diaphragm Valve Range

The Dual Diaphragm Valves’ bodies and bonnets are all made from high grade SG42 Cast Iron and are suitable fro lining and various rubber, Urethane, Ceramic, Halar and Fluorpolymers like PTFE and ECTFE. 

What Makes the Diaphragm Valve Unique?

 The valve is closed mechanically via movement of a compressor gate which is located above the diaphragm. The valves are well suited for on/off throttling control applications involivng slurries powders, liquids, granulated materials and applications where scale build is a problem. 

What Pressure Can the Diaphragm Valves Take?

More Info

10 – 16 Bar for higher pressures please contact the factory.

Valve Linings

More Info

The valve lining can be manufactured from Natural Rubber, Butyl, Neoprene or Butyl.

Face to Face and Flange Drilling

More Info

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