The gauge is one of the quality controls of the system. It verifies firstly that the ring has been crimped and secondly, that it has been compressed enough.
Gauging of the compressed ring should be done throughout each job.
When using the gauge, slide the opening over the compressed ring. It should slide easily over the ring. Do not place the gauge over the pipe and then move it back along the pipe and over the ring. This may not give a true reading.
If the gauge is lost, it should be replaced immediately.
The plastic ring on the fitting is only there to hold the crimp ring to the fitting. It plays no part in the integrity of the joint. It may behave differently after crimping, however as a general rule, the back of this ring should be flush against the body of the fitting and the crimp ring should be attached to it. This starting position will also help to ensure full penetration of the fitting inside the pipe.
Pipe that comes out of the crimped ring at an angle may indicate that the pipe is not covering all of the barbs on one side. This situation may occur if a tight bend is made close to a joint or if the pipe has moved in some way prior to crimping. Where possible, crimp the fitting before making the tight bend and install a clip close to the joint between the bend and the joint. Use a bend stabiliser to avoid stress on the joint.
Auspex Crimp has a range of adaptors, which are identified by a different coloured plastic ring. Do not join Auspex pipe by using a fitting with a coloured ring. To identify the uses for these adaptors, consult your supplier or Auspex directly.
When crimping fittings which are flush to frames etc, check to ensure that the crimp ring has not pinched on the back side. Rings which are pinched in this manner should be replaced.
The clips should be installed so that the pipe can move freely through the clip. Plastic clips are recommended.
|Pressure derating of pipes according to pipe material temperature|
|Working pressure, kPa|
|Working pressure, P.S.I.|