DSFFV
DUAL SLIMLINE BALL NON-RETURN VALVE
DUAL'S Slimline Valve’s heart is a reinforced Urethane or Rubber ball. The unique design of the valve allows free movement of the ball. The ball lifts completely out of the flow without any interference. As the pump stops, the ball falls and positively locates the seat due to its own weight and back pressure of the liquid. This results in drop-less sealing.
FEATURES
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Perfect sealing.
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Low head losses.
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Non clogging, self cleaning ball.
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Minimum back pressure for tightness 0.3 to 0.5 Bar.
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Removable bonnet for cleaning or replacing of ball.
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Maintenance free.
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Full bore.
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Silent, non-slam, reduces pipe hammer.
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Fabricated valves face-to-face can be altered to suit different types of valve face-to-face dimensions.
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Simple construction - one moving part.
APPLICATIONS
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Slurry pipelines.
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Deep well pumping.
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Waterlines.
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Sewage.
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Pump suction.
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Pump discharge.
SPECIFICATIONS
Size Range
50mm to 600mm.
Larger sizes available on request.
Operating Temperatures
-10˚C to +80˚C.
Body Types
Ball foot valve.
Ball non-return valve.
Pressure Ratings
Working pressure
Shell test pressure
Seal test pressure
Ball
Steel core, Urethane or Rubber coated.
PN 10
1.5MPa
1.1MPa
PN 16
2.4MPa
1.76MPa
PN 25
3.7MPa
2.5MPa
For higher pressures, please contact the factory.
