Dual Rotary Disc Sleeve Valve (DRDSV)
Dual Rotary Disc Sleeve Valve (DRDSV)
Dual’s Rotary Disc Sleeve 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 jamming and has a ring seat sleeve that can be replaced when worn. The valve can be used to control and throttle the flow.
DRDSV Features
No pressure drop.
No blocking or leakage.
Disc can be replaced in situ.
Low torque due to no gate guides.
Long wear life (due to rotating gate/disc).
Self cleaning gate action.
Seals in both directions.
Wedge for position seal.
Cutaway to clean seating area.
Fabricated valves can be repaired in line.
Sleeve out of flow when in open position.
Rising and non-rising spindle.
Back seat to re-pack gland packing under pressure.
Replaceable ring sleeve seat.
Light weight.
Spindle dust cover.
Flush port.
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SIZE RANGE: |
50mm to 2000mm. |
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BODY TYPE: |
Fabricated Carbon Steel, Cast SG Iron, High Chrome or Stainless Steel. |
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PRESSURE RATINGS: |
10 Bar to 100 Bar (150 Psi to 1500 Psi). |
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GATE MATERIAL: |
Gate Material can be Carbon Steel, Abrasion Resistant 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 Metal, Rubber or Urethane coated. |
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REPLACEABLE RING SLEEVE: |
Rubber or Urethane. |
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THRUST BEARINGS: |
To reduce operating torque (handwheel type). |
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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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BODY LINING: |
Rubber, Urethane or Ceramic. |
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MATERIAL CERTIFICATION: |
All vetted parts have certified chemical and physical test reports. |
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166 Rotterdam Road, Apex Industrial, Benoni, Gauteng, South Africa
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(+27) 11 422 – 4326/7