Dual Valve Diaphragms (DVD)
Dual Valve Diaphragms (DVD)
Dual manufactures a comprehensive range of flexible diaphragms for type WO and SO valves. All diaphragms are manufactured to the highest International quality standards. Dual Diaphragms are manufactured in South Africa, using our own techniques and expertise.
The diaphragms are moulded with reinforced flexible materials and are manufactured of natural and synthetic rubber compounds in sizes varying from 15mm to 350mm.
|
GRADE |
MATERIAL |
SERVICE |
|
NA NAX |
Natural Rubber Reinforced Natural Rubber |
Abrasive powders, slurries, water purification, inorganic soils, clean compressed air etc. Temperature: -35˚C to +80˚C. Type: WO and SO Diaphragms. |
|
NI |
Nitrile Rubber |
Mineral, animal and vegetable oils, fats, Paraffin, kerosene and fuel oils. Temperature: -10˚C to +100˚C. Type: WO and SO Diaphragms. |
|
BY |
Butyl Rubber |
Severe acid and Alkali conditions, Sulphuric acid (up to 80% concentration at ambient temperatures), hot water services and applications including sterilisation. Temperature: -25˚C to +120˚C. Type: WO and SO Diaphragms. |
|
NE |
Neoprene Rubber |
Compressed air, most gases, animal and vegetable fatty oils and greases. Temperature: -5˚C to +120˚C. Type: WO and SO Diaphragms. |
|
HY |
Hypalon Rubber |
Good acid-ozone resistance plus certain Chlorine services. Temperature: -10˚C to +100˚C. Type: WO and SO Diaphragms. |
|
PB |
Polytetraluoroethylene /Butyl |
Highest chemical resistance to all fluids, except Alkali metals, suitable to Chlorine. Temperature: -35˚C to +80˚C. Type: WO Diaphragms only. |
|
JUM |
Natural Gum Rubber |
Abrasive powders, slurries under harsh conditions. Capable of higher pressures. Temperature: -35˚C to +80˚C. Type: WO and SO Diaphragms. |
|
VITON |
Viton Rubber |
Abrasive powders, slurries under harsh conditions. Capable of higher pressures. Temperature: -10˚C to +200˚C. Type: WO and SO Diaphragms. |
Head Office
166 Rotterdam Road, Apex Industrial, Benoni, Gauteng, South Africa
Call Us
(+27) 11 422 – 4326/7