Dual Weir Type Diaphragm Valve (DWTDV)
Dual Weir Type Diaphragm Valve (DWTDV)
Dual manufactures a full range of diaphragm valves. Both WO (Weir Orifice) and SO (Straight Orifice) type. The SO valve can safely handle a line pressure of up to 1600kPa (16 Bar) and they are tested to 2500kPa (25 Bar). All bodies and bonnets are made from high grade SG42 Cast Iron and are suitable for lining and various rubber, Urethane, Ceramic, Halar and Fluorpolymers like PTFE and ECTFE.
DWTDV Features
Valve can be installed in any position.
Housing acts as a built in indicator.
Long operating life.
Full bore, low friction loss.
100% drip tight closure even with solids in the medium.
Light weight.
Seals in both directions.
High flexible diaphragm design reducing closing forces, improves recovery to full open position.
Enclosed body protects diaphragm from the environment and contaminants in the event of diaphragm failure.
Fast and easy diaphragm change.
Single wearing part.
No glands which require adjustment.
Pneumatic or hydraulic medium can be used to operate the valve.
Ideal for remote operations.
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SIZE RANGE: |
25mm – 350mm. |
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OPERATING TEMPERATURES: |
-50˚C to +140˚C. |
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BODY TYPE: |
Cast Aluminium, Cast SG42, Cast Iron. |
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PRESSURE RATINGS: |
16 Bar (For higher pressure consult factory). |
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DIAPHRAGM: |
Gum Rubber, Red Rubber, EPDM, Butyl, Chlorobutyl, Neoprene, Polyurethane, Viton and Hypalon. |
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THRUST BEARINGS: |
To reduce operating torque (handwheel type). |
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FLANGED BODY: |
Drilled to SABS, ANSI, BS or DIN. |
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VALVE INTERVALS: |
Spindle, Spindle nut, Compressor, Diaphragm. |
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BODY LININGS: |
EPDM, Butyl, Neoprene, ECTFE, Halar or Polyurethane. |
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MATERIAL CERTIFICATION: |
Certified chemical and physical test reports can be supplied. |
Head Office
166 Rotterdam Road, Apex Industrial, Benoni, Gauteng, South Africa
Call Us
(+27) 11 422 – 4326/7