Dual Rotary Disc Wafer Sleeve Gate Valve (DRDWSGV)
Dual Rotary Disc Wafer Sleeve Gate Valve (DRDWSGV)
Dual’s Rotary Disc Wafer Sleeve Valve is a unique rotating disc 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. Zero discharge to atmosphere.
DRDWSGV Features
Seals in both directions.
No blockage or leakage.
No pressure drop.
Disc can be replaced in situ.
Low torque.
Long wear life (due to rotating gate/disc).
Self cleaning gate action.
Wedge for position seal.
Cutaway to clean seating area.
Fabricated valves can be repaired in line.
Sleeve out of flow when in open position.
Deflection cone reduces seat wear.
Back seat to re-pack gland packing under pressure.
Replaceable ring sleeve seat.
Light weight.
Spindle dust cover.
Flush port.
Zero discharge to atmosphere.
Suitable for dead-end-service.
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SIZE RANGE: |
50mm to 1500mm. |
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BODY TYPE: |
Wafer pattern Cast SG Iron, Stainless Steel or Fabricated Steel with Epoxy coating. |
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PRESSURE RATING: |
DN50 to DN600 rated to 240Psi (16 Bar). DN650 to DN1500 rated 150Psi (10 Bar). |
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ELASTOMER RING SLEEVE: |
Gum Rubber (standard), Nitrile, Viton, EPDM, Chlorobutyl or Urethane. Metal seat is available. |
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GATE MATERIAL: |
316 Stainless Steel standard – 316L, 317L, 17-4PH, Alloy 20, SAF 2205 S/S with optional wear coatings. |
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GATE SURFACE COATING: |
SSEC Coating Available. |
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DRILLING PATTERNS: |
DN50 to DN1500 drilled and tapped ASME B16.5, DIN, SABS & BS Optional. |
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BODY LINING: |
Rubber, Urethane or Ceramic. |
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MATERIAL CERTIFICATION: |
Certified chemical and physical test reports can be supplied. |
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166 Rotterdam Road, Apex Industrial, Benoni, Gauteng, South Africa
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(+27) 11 422 – 4326/7