CRIMP GAS PIPING Jointing Procedure


 


1. Make a clean cut using the BUSH Crimp Gas Pipe Cutters. Ensure that, the pipe is cut squarely and the surface of the pipe is undamaged (i.e. there are no scores, cuts or scratches on the surface of the pipe).

 

2. Round and deburr the end of the pipe by inserting the BUSH Crimp Gas PEX-AL Reaming / Calibrating tool– ensure it is size matched to suit the pipe diameter. Insert the Reaming / Calibrating tool fully into the pipe using atwisting action  then rotate 2-3 full turns or until it moves freely within the pipe.Visually check and remove any swathe for a clean end.

 

3. Visually inspect the inside of the fitting to ensure it is free of any dirt or grit.

 

4. Push the BUSH Crimp Gas PEX-AL pipe slowly into the BUSH Crimp Gas fitting and within the stainless steel sleeve until the pipe is fully inserted and visible through the four witness holes. Confirm the pipe is visible through all witness openings.

 

5. FOR MANUAL / HAND CRIMP TOOLING: Centralise the BUSH Hand Crimping Tool so the jaws are aligned over the stainless steel sleeve. The jaws should butt-up against the yellow retainer ring but NOT over it. Slowly close the lever handles, close the jaws and compress the joint.

 

FOR BATTERY TOOLS: When using a BUSH Battery Crimping Tool you must align the outer edge of the jaws over the yellow retainer ring which locates the jaws correctly– then compress.

 

6.Check each joint has been compressed correctly by using the BUSH crimp gauge. If the BUSH gauge’s corresponding size easily passes over both crimp indentations made in the stainless sleeve, then the joint is properly crimped.

 

If the crimp gauge does not pass easily over both indentations in the stainless steel sleeve, then the crimping tool requires adjustment, (Refer to: Tool Adjustment Section). After adjustment, re-crimp the joint then re-check with the crimp gauge. Repeat process until correct.

 

7.When soldering connecting barbs, (male or female) solder the brass connecting barbs first then allow cooling before assembly. When assembling the fitting, ensure the plastic retainer ring, the two “O” rings and the stainless steel sleeve are installed correctly.

 

(Refer to picture on Page 9 of this brochure for assembly detail) 8. Pressure test the complete installation in accordance with AS5601.1:2010 and any other local and applicable laws and/or regulations.

Important : This system must be installed by a licenced Gas Fitter in accordance with AS 5601.1.2010 and this procedure, using BUSH Crimp Gas PEX-AL pipe, BUSH Crimp Gas fittings and approved tools , other wise warranty will be void.