Dual Ball / Check Valves
The Dual Ball / Check Valve Range
The Dual Ball Check Valves have all been designed to function under the harsh conditions of mining and mineral processing, these valves all come with the Dual stamp of approval. All valves are manufactured and tested to ISO 2015. We pride ourselves in being the leader in the valve slurry industry.
What Makes the Ball Check Valve Unique?
With the heart of the valve being the Polyurethane Ball used to seal the valve when the line is shut off. The Ball is constructed of a steel insert with bracing and then Polyurethane coated in a Shore 90 Hardness Urethane to ensure longevity.
What Pressure Can the Ball Check Valves Take?
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Valve Linings
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Face to Face and Flange Drilling
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DDCV - Dual Diaphragm Check Valve
The Diaphragm Check Valve is drip-proof and may be mounted in any position.
DDNRV - Dual Double Non-Return Valve
Both pumps can run simultaneously or independently without any back flow to the other pump.
DDV - Dual DASHLEY Double Ball Check Valve
Both pumps can run simultaneously or independently without any back flow to the other pump.
DDWV - Dual Dewatering In Line Ball Check Valve
The DDWV protects the pipeline from siphoning when the pump is not in operation. There is no pressure drop across the valve.
DFFSCV - Dual Flapper Flex Swing Check Valve
The seat is offset and is hinge positioned so that the gravitational action causes the valve to close in proportion to the reduction in flow.
DFFV - Dual Free Flow Slurry Ball Check Valve
Operates on the discharge side of the pump. The ball allows for movement without any noticeable shock or hammer.
DFSV - Dual Flo-Stop Valve
The flo-stop valve has a reinforced stainless steel ball. The ball lifts out of the liquid without any interference.
DFV - Dual Valve
The Dual Valve’s handwheel can be used to isolate, but with back pressure.
DINCV - Dual In-Line Check Valve
Dual’s In-Line Check Valves are designed to handle abrasive slurries, sewage, sludge and other difficult materials.
DPV - Dual Pump Protection Valve
The DPV has been designed and manufactured to provide protection against excessive fluid temperature rises.
DSCV - Dual Swing Check Valve
Dual’s Swing Check Valves embody a flap which is designed to swing out of the line of fluid flow at maximum capacity.
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.
DSSCV - Dual Slurry Swing Check Valve
The DSSCV is particular well suited for harsh highly abrasive flow control applications.
