© 2016 SPI Lasers UK Ltd.
Commercial in Confidence
SM-S00500 Revision A 21 October 2016
redPOWER QUBE Cased Fiber Laser User Manual
7.4.3 Cooling Water Fittings
SPI Lasers recommends that the commonly available push-on John Guest ‘Speedfit’ water
connections are used to connect the cooling circuits to the chilled water supply. John Guest
part numbers are given in Table 4. Alternative tubing from SMC is given in Table 5.
Table 4 Water Tubing
12mm LLDPE Tubing (for
manifold)
6mm LLDPE Tubing (for
optical connector)
Table 5 Water Tubing
12mm polyurethane tubing
(for manifold)
6mm polyurethane tubing
(for optical connector)
When using ‘Speedfit’ the water connection should be made as follows:
Cut the tube square and remove burrs and sharp edges. Ensure the outside diameter
is free of score marks. Push the tube into the fitting, to the tube stop.
Push the locking clip onto the fitting behind the collet
Pull on the tube to check it is secure. Test the system before use.
To disconnect the water connection:
Ensure the system is depressurized and drained
Remove the locking clip
Push the collet square against the fitting. With the collet held in this position the tube
can be removed.
If this QUBE Fiber Laser is to be transported to a new location, returned to SPI Lasers or
placed in storage it must first be disconnected from mains power, and then once the chiller
has been disconnected both the QUBE Fiber Laser and the optical connector must be drained
of all cooling water and blown through with compressed air.