Valves

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Control Valves

eDART are specialists in designing and manufacturing of slurry equipment. For flotation machines, we have the internally plug guided i-Dart Valve for deep tanks and the tri-Dart Valve for the shallower conventional cells. Our single- and dual- external slurry control valves are excellent for brownfield upgrades where safety is important and there are restrictive space constraints.

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Reliable
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Flexible design
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Applicable to Green and Brownfield flow control design
Dosing Valves
The self flushing inline 3-Way dosing valve is used to neutralise tailings or to control the PH of the medium. Typically, rock lime (alkaline) in a ring main is continuously pumped around the circuit because it tends to settle and separate. Normally a Tee-piece is inserted into the line (called a take-off line) and the flow is controlled with a standard valve, for example, a knife or butterfly valve. When the valve is closed the line is filled up with the stagnant lime and blocks. The dosing valve eliminates this by being located directly in the ring main. As the valve opens the vertical take-off line fills up. When closed the line gravity flushes and therefore does not leaving a pocket in the pipe to solidify.
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Pinch Valves
The control pinch valves are supplied with reduced or full bore pinch sleeve with a single pneumatic actuator. These valves are value engineered to give a simple, robust and low-cost valve with good flow control capabilities.
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External Dart Valve
This valve is optimised for fine control of slurry flow from one flotation machine to the next. The single eDart has a customisable body and flange orientations to suit any plant.
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Internal eDart Valve
DART’s internal dart valves are bodiless valves suitable for installation within the slurry tank, cell or box. There are two main variations – self-contained triDart valves which are factory calibrated and installed as a single unit; and iDart valves which have a bolt down seat cage with only a shaft extending to the actuation unit. Both types offer the stability and reliability advantages of head-guiding where the plug is guided into the seat with bars set out all around the plug.
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Internal Valves

DART’s internal dart valves are bodiless valves suitable for installation within the slurry tank, cell or box. There are two main variations – self-contained triDart valves which are factory calibrated and installed as a single unit; and iDart valves which have a bolt down seat cage with only a shaft extending to the actuation unit. Both types offer the stability and reliability advantages of head-guiding where the plug is guided into the seat with bars set out all around the plug.

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Fully customisable design
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Anti-Rotation devise on the plug
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Stroke indication
iDart
DART’s internal dart valves are bodiless valves suitable for installation within the slurry tank, cell or box. There are two main variations – self-contained triDart valves which are factory calibrated and installed as a single unit; and iDart valves which have a bolt down seat cage with only a shaft extending to the actuation unit. Both types offer the stability and reliability advantages of head-guiding where the plug is guided into the seat with bars set out all around the plug.
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TriDart
During continuous leaching, the leach tanks gravity feed from one cell to the next. To be able to divert the flow or bypass a cell, they need to close a pipe and open another. This is achieved through the use of a dart valve.
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External Valves

This valve is optimised for fine control of slurry flow from one flotation machine to the next. The single eDart has a customisable body and flange orientations to suit any plant.

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Body fully customised to plant layout
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Simple maintenance
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Ideal for plant retrofits
y-Dart (inline)
The shaft – and the plug, seat, bonnet, and actuator – of the yDart is inclined at 45° to the longitudinal axis of the pipeline so that the plug and seat arrangement may be accommodated within the body with the smallest face-to-face distance.
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Single eDart
This valve is optimised for fine control of slurry flow from one flotation machine to the next. The single eDart has a customisable body and flange orientations to suit any plant.Learn more about single eDart
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Dual eDart
The Dual eDart – or external (to a vessel) dual Dart valve – is specifically designed for the flotation market. It has been optimised for slurry flow by having two plugs and seats within the body. This gives the valve a high rangeability and fine control. Because the valve is external to the vessel it is well suited to upgrade projects and where safety is a concern, the valve, in conjunction with knife gate valves, may be isolated and easily maintained.
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