The STAR TRACE magnetically coupled pumps are centrifugal types of
fully encapsulated construction. The pumps are rated for continuous duty
and is ideally suited for recirculation applications. The unit can be
used with mild acids or alkalis, since the only components in contact
with the pumped fluid are plastic and ceramic with a rulon bearing and
a viton O- ring. (see Chemical compatibility.) Magnetically coupled pumps
offer a number of advantages over conventional centrifugal pumps type.

» Leak paths are eliminated and friction and power consumption
are reduced as there are no rotating seals.

» All ‘wetted’ components are formed from advanced plastic materials
and have a high resistance to aggressive fluids.

» Transmission of heat from the pumped fluid to the motor is
reduced.

The pump can be connected to pipework using suitable BSP fittings
such as jubilee clips. The pump mounting plates have several fixing option.
Flexible hoses with different internal diameters may be used (avoid over
tightening as this may cause damage to the ports). The pump and pipework
should be adequately supported and correctly fitted to avoid shock loading
and strain on the pump and its ports. The pump not be mounted vertically
with the ports below the motor.

The pump should have flooded suction since it does not self prime.
Filters or restrictions should not be situated before the pump inlet.
When priming, operate the pump in short 10 second cycles to facilitate
the clearing of air. Ensure that there are no leaks or blockages in the
associated pipework. The pump should not be operated against a closed
valve for longer than 30 seconds. Where the pumped fluid causes coating
or deposition, periodic cleaning of pumping internals may be necessary.
This can be achieved by flushing through with an appropriate cleaning
agent. The pump casing should be adequately ventilated to avoid overheating
the motor. The motor is protected by the magnetic coupling should the
impeller stall. do not run the pump dry.