Dual Valve (DFV)
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Slimline Free flow Valve(DSFFV)
Dashley Double Ball Check Valve (DDCV)
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Slurry Air Release Valve (DSARV)
Rotary Disc Valve (DRDV)
Pump Protection Valve (DPV)
Flo-Stop High Pressure Mine Dewatering Check Valve(DFSV)
Compact flanged ported gate valve (DCFPG)
Dual slide gate valve (DSGV)
Straight Through Pinch Valve (DSTPV)
Pinch Valve Enclosed Body Type (DPVE)
Dual Pinch Valve Open Body Type (DPVO)
Double Acting Pneumatic Actuators (DDAPA)
Dual Pneumatic Pinch Valve(DPPV)
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Dual Valve (DFV)

Untitled Document

Click on the image for full size

Dual Valve (DFV)

The DUAL valve operates on the discharge side of the pump. As the flow through the pipeline starts or stops, the ball automatically rises or falls, opening or closing the valve. The handwheel is there to lock the ball in position. The handwheel can be used to isolate, but with back pressure. The Dual valve can work in the horizontal and vertical position.

FEATURES
The Dual Valve is the only proven maintenance and trouble-free slurry valve in the world with all these features

  • Rotating and floating ball which self-adjusts to flow.
  • Self-cleaning, due to the freely rotating ball.
  • Long ball life, due to ball rotation.
  • Replaces two valves: check valve and either a gate, knife gate, pinch or diaphragm valve.
  • Full port opening - no obstruction to the flow.
  • Virtually no pressure drop which eliminates water hammer.
  • Long seat life - seats are out of the flow and can be rotated in-line to increase seat life fourfold.
  • Easy maintenance - seat and ball can be inspected or replaced without removing the Dual Valve from the pipeline.
  • Indicator to show valve in open or closed position.
  • Virtually maintenance free because of the simple design.
  • Simple manual operation - manual handwheel is standard and automatic actuators are not required (but can be fitted).


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Dual Valve (DFV)

Untitled Document

Click on the image for full size

Dual Valve (DFV)

The DUAL valve operates on the discharge side of the pump. As the flow through the pipeline starts or stops, the ball automatically rises or falls, opening or closing the valve. The handwheel is there to lock the ball in position. The handwheel can be used to isolate, but with back pressure. The Dual valve can work in the horizontal and vertical position.

FEATURES
The Dual Valve is the only proven maintenance and trouble-free slurry valve in the world with all these features

  • Rotating and floating ball which self-adjusts to flow.
  • Self-cleaning, due to the freely rotating ball.
  • Long ball life, due to ball rotation.
  • Replaces two valves: check valve and either a gate, knife gate, pinch or diaphragm valve.
  • Full port opening - no obstruction to the flow.
  • Virtually no pressure drop which eliminates water hammer.
  • Long seat life - seats are out of the flow and can be rotated in-line to increase seat life fourfold.
  • Easy maintenance - seat and ball can be inspected or replaced without removing the Dual Valve from the pipeline.
  • Indicator to show valve in open or closed position.
  • Virtually maintenance free because of the simple design.
  • Simple manual operation - manual handwheel is standard and automatic actuators are not required (but can be fitted).


Download PDF

Quantity :