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CM & CMP - HYDRAULIC DIAPHRAGM
Hydraulic Diaphragm pumps may be used when the liquid containing small amounts of particles in suspension.
The Wet-End consists of the Head, Valves, Diaphragm, Hydraulic Chamber, Piston and Seals.
Wet-End, Head, Diaphragm and valves is connected to the gearbox via a hydraulic chamber filled with oil. The hydraulic piston is driven by the gearbox and moves the oil which in turn moves the diaphragm.
This allows the pump to attain the same pressures as a piston pump. It also forms a sealed chamber that stops aggressive liquid from spilling to atmosphere should the diaphragm rupture.
On request more than one head, Multiplex Pump, can be assemble to allow for proportional metering of different fluids or double the flow range of the pump.
Gravity assisted ball valves are a standard.
Standard connection to the valves are with male BSP threads or preferably by O-ring face sealing connections. Special flanged connections are also available on request.
Standard Materials:
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X = Head & Valves in S.S. AISI 316 / PTFE lined
 Diaphragm
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Fluid Temperature 0ºC to 40ºC
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Pressure up to 20
bar
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P = Head & Valves in µPVC / PTFE lined Diaphragm
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Fluid Temperature 0ºC to 40ºC
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Pressure up
to 10 bar
XR and PR pumps are also available with internal hydraulic recycle valve to prevent diaphragm damage.
Gearbox is a robust construction consisting of a single worm reduction gear. Adjustment of the pumped volume per stroke can be varied manually from 0-100%, whilst the pump is running or at rest, via a control knob which has an easy to read scale.
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SLOW SPEED DOSING
PUMP
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Viscosity up to 300 cPs
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Flow Rates up to 530 l/hr
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FAST SPEED DOSING
PUMP
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Viscosity up to 150 cPs
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Flow Rates up to 1070 l/hr
Motors are standard IEC frames, 4 pole - IP55 - TEFC, mounted vertically to the gearbox via a close coupled B14 flange. Standard motors are available in 400V or 525V three as well as 230V single phase . On special request motors can be ordered with other specifications, including explosion proof.
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