3.3
400D1, 400DM2 and 400DM3 pumpheads
The 400D1 pumphead is designed to accept 1.6mm wall thickness tubing in four different bore sizes. The
400DM2and 400DM3pumpheadsaredesigned to acceptthree-bridge manifold tubing only.
Safety information
There are moving parts inside the pumphead. Before opening the pumphead track, ensure
that the following safety directions are followed.
•
Ensure thatthepump isisolated from themainspower.
•
Ensure thatthere isno pressure in thepipeline.
•
If a tube failure hasoccurred, ensure that any fluid in the pumphead hasbeen allowed to drain to a
suitable vessel, container or drain.
•
Protective clothing and eyeprotection mustbeworn if hazardousfluidsarepumped.
Always isolate the pump from the mains power supply before opening the
guard or performing any positioning, removal or maintenance activity.
There are moving parts inside the pumphead. Before opening the guard or
track, ensure that the following safety directions are followed:
•
Ensure the pump is isolated from the mains power.
•
Ensure that there is no pressure in the pipeline.
•
If a tube failure has occurred, ensure that any fluid in the pumphead
has been allowed to drain to a suitable vessel, container or drain.
•
Ensure that appropriate Personal Protective Equipment (PPE) is worn.
Pumphead installation
A correctly engineered installation will promote the best possible tube life, so please ensure that the
following guidelinesarefollowed:
•
Avoid tight pipeline bends, pipe reducers and excessive lengths of smaller bore tubing than that in
thepumphead, particularly in pipelineson thesuction side.
•
Ensure that connecting pipework and fittings are suitably rated to handle the predicted pipeline
pressure.
•
If rigid pipework comes in close proximity to the pumphead, a drop-out section of pipework will
simplify tube replacement.
400D1 tube loading and removal
Over-tightening the sprung track pin can damage the tube and the
pumphead.
•
Release thetrack by disengaging thesprung track pin.
•
Before tube loading, make sure thatenough suction and delivery tubing isavailable to connectinto
theremaining pipeline or to reach thesuction reservoir and delivery point.
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