Dual Rotary Disc Valve (DRDV)
Dual Rotary Disc Valve (DRDV)
Dual’s Rotary Disc Valve is a unique rotating gate valve designed specifically for heavy abrasive and corrosive slurries. The patented design allows the valve to cycle in heavy slurries without sticking.
DRDV Features
Seals in both directions.
No blocking or leakage.
Disc can be replaced in situ.
No sticking (due to no guides).
Long wear life ( due to rotating gate/disc).
Self clearing gate action.
Wedge for positive seal.
Cutaway to clean seating area.
Fabricated valves can be repaired in line.
Seal out of flow when in open position.
Rising and non-rising spindle.
Back seat to re-pack gland packing under pressure.
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SIZE RANGE: |
50mm to 600mm. |
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BODY TYPE: |
Fabricated Carbon Steel for valves larger than 300mm, Cast SG Iron, High Chrome or Stainless Steel. |
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PRESSURE RATINGS: |
25 Bar – 240Psi. |
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GATE MATERIAL: |
Gate Material can be Carbon Steel, Abrasion Resistant AR Steel, Cast High Chrome or Stainless Steel. |
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THICKNESS: |
Gate to have a minimum safety factor of 2:1 based on yield strength of material. |
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SHAPE: |
Gate radius to be set for minimum valve height in chest area. Gate is round with Metal, Rubber or Urethane seal. |
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THRUST BEARINGS: |
To reduce operating torque. |
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TESTING: |
All valves are tested per SABS specifications certified. |
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FLANGES: |
Flanges comply with AS, ANSI, DIN, BS and SABS. |
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FACE-TO-FACE: |
To suit customer specifications. |
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LIFTING LUGS: |
Valves have lifting lugs / holes sized and located for safe hoisting of valve assembly. |
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BODY LINING: |
Natural Rubber or Urethane. |
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MATERIAL CERTIFICATION: |
All vetted parts have certified chemical and physical test reports. |
Head Office
166 Rotterdam Road, Apex Industrial, Benoni, Gauteng, South Africa
Call Us
(+27) 11 422 – 4326/7