Elson BUSHPEX CRIMP GAS PEX-AL PIPING SYSTEM User manual

CRIMP GAS
PEX-AL PIPING SYSTEM
Product information
and installation Manual
Version 3.0

BUSHPEX Crimp Gas
Elson Australasia Pty Ltd proudly presents the BUSHPEX Crimp Gas
PEX-AL Piping System. This compliments the range of PEX and PEX-AL
Plumbing Systems / Gas Piping System offered by Elson Australasia.
BUSHPEX Pull On PEX System for Water Reticulation, 16 to 32mm.
BUSHPEX Crimp On PEX System for Water Reticulation, 16 to 25mm.
BUSHPEX Push On PEX System for Water Reticulation, 16 to 25mm.
All Three Systems For Water use the same BUSHPEX PN20 Pipe.
BUSHPEX CRIMP GAS PEX-AL PIPING SYSTEM - BUSHPEX Crimp System for
GAS, 16 to 63mm.
BUSHPEX Crimp On PEX for WATER and BUSHPEX CRIMP GAS PEX-AL
Systems use the same BUSHPEX Crimp tools and gauges. Reaming /
Calibrating tools are specific to the BUSHPEX Crimp Gas PEX-AL Piping
System.
This brochure provides specifications and
installation information relevant to the
BUSHPEX Crimp Gas PEX-AL Piping system.
The system comprises of Pipe, Fittings and Tooling.
BUSHPEX Gas PEX-AL pipe is manufactured as a composite pipe
consisting of an inner and outer layer of cross linked polyethylene which is
permanently adhered to a central core of Aluminium. The pipe is
manufactured under Strict Quality controls to Australian Standards AS4176
/ ATS 5200.478 under Licence SMKP 21859.
BUSHPEX Crimp Gas fittings are a solid brass double crimp fitting with
double “O” ring secondary seal and stainless steel crimp sleeves. The fittings
are manufactured under Strict Quality controls to Australian Standard
AS4176 under licence SMKP 21859.
BUSHPEX CRIMP Tooling comprises of both Manual Tooling for 16mm,
20mm, 25mm and Battery tooling from 16mm to 63mm. All tooling used
should be verified before use to ensure suitability for BUSHPEX Crimp
systems. BUSHPEX Crimp Gauges and BUSHPEX Crimp Gas PEX-AL Reaming
/ Calibrating tools are essential requirements for use during the installation
procedure as detailed in this Manual.
All products are fully warranted for a period of 25 years when installed as a
Proprietary Gas System in accordance with AS/NZS5601 and this BUSHPEX
Crimp Gas PEX-AL Piping System Installation Manual by a
Licenced Gas Fitter using all Pipe and Fittings with Licence Number
SMKP 21859 only , and the approved tooling.

BUSHPEX Crimp Gas
IMPORTANT NOTE
ELSON AUSTRALASIA aims to ensure all BUSHPEX Branded products are
manufactured and installed in accordance with all applicable Australian
Standards and requirements. Installation of the BUSHPEX Crimp Gas
PEX-AL Piping System MUST only be carried out by a Licenced Gas Fitter.
The Licenced Gas Fitter must also have successfully completed the
BUSHPEX Crimp Gas PEX-AL Piping SystemInduction and Training
Module. Installation must be in accordance with the Gas Installation
Australian Standards AS/NZS5601 and any other relevant and
applicable local authority codes which may take precedence. The Installer
must alsouse the installation guidelines set out in this manual.
Installation must only ever involve the use of the approved system of
BUSHPEX Gas PEX-AL pipe and fittings with Licence SMKP21859 and
Approved tooling. The Design of any Gas piping system must safely
supplyan adequate flow and velocity of gas to every appliance at the
required pressure. Please consult the Sizing tables in this Manual and the
calculation process and procedures as defined in AS/NZS5601 to ensure
conformance and suitability of this system prior toinstallation.
ELSON AUSTRALASIA Pty Ltd will log records of Licenced Gas Fitters
who have successfully completed Induction and Training. These records if
required can be accessed by TechnicalRegulators on verification if
confirmation is required for training.
Application for verification of completion of BUSHPEX Crimp Gas PEX-AL
Piping System Training should be sent to the email address below
requesting the name of the person requiring verification. ELSON
AUSTRALASIA will then reply confirming or denying training and supply
the training date, Personal details will not be supplied.
Email: [e-mail]
BUSHPEX Crimp Gas PEX-AL Piping System is required and detailed in
this manual for installation conformance to AS/NZS5601.
If you require a copy of this standard it can be purchased fromthe
following Website:
http://infostore.saiglobal.com/store
If you require further assistance with purchasing this standard please
contact our office by phone [phone] or by email
[e-mail]

BUSHPEX Crimp Gas
BUSHPEX CRIMP GAS
FEATURES AND BENEFITS
• Manufactured, distributed and supported by Elson.
• 25 Year product Warranty when installed according to detailed
requirements.
• Product manufactured by Elson to relevant Australian Standards by
our ISO9001 approved manufacturing facility with all Certification by
SAI Global.
• BUSHPEX Crimp Gas PEX-AL Piping System is a cost effective
alternative to other Gas systems.
• BUSHPEX Crimp Gas PEX-AL Piping System is fast and easy to
install.
• BUSHPEX hand crimping tools can be used for both BUSHPEX
Crimp-on Water PEX and BUSHPEX Crimp Gas PEX-AL Piping Systems.
• Light weight – easy to handle & install.
• Smooth inner core reduces pressure losses.
• Low levels of thermal conductivity and expansion.
• Strong impact resistance.
• Comprehensive size range 16mm – 63mm diameter.
• Double “O” ring is the internationally preferred system.
• Long entry stainless steel crimp sleeve.
• Double crimp seal.
• Four easy to see witness holes to confirm full engagement of fitting
onto pipe.
• Yellow retaining ring signifies “Gas” and also locates Battery tool
Jaws.
• German manufactured Battery Tools available in two sizes.

Contents
Technical Information ................................6
1. BUSHPEX Crimp Gas PEX-AL Pipe .............6
2. BUSHPEX Crimp Gas Fittings ..................7
3. BUSHPEX Tooling ............................... 12
Warranty ............................................13
BUSHPEX Crimp Gas Tool Inspection ...........14
BUSHPEX Crimp Gas Jointing Procedure
.......15
FAQ ..................................................18
Sizing Tables for Natural Gas ....................20
Sizing Tables for LPG ..............................23
Fittings ............................................... 24
Pipe ...................................................34
Tools and Accessories .............................35
5
BUSHPEX Crimp Gas

Technical
Information
Technical Information
6BUSHPEX Crimp Gas
BUSHPEX Crimp Gas is a complete Gas Piping
system comprising of a multi-layer composite
PE-Xb/AL-PE-Xb (PEX-AL) pipe, a comprehensive
range of Brass crimp fittings from 16mm to
63mm and tooling options in both manual and
Battery operation complete with reaming /
calibrating tools and crimp gauges to ensure
system performance.
1. BUSHPEX Crimp Gas PEX-AL Pipe
BUSHPEX Crimp Gas composite pipe is
manufactured from an inner and outer wall of
crossed linked polyethylene material which is
bonded on both sides with a middle layer of
aluminium. The Pipe is yellow in colour and is
clearly marked at 1m intervals detailing Brand,
Type, Size, Class, Standard and Licence
Number. The pipe has been tested and
approved in accordance with the Australian
Standard AS4176 / ATS 5200 under Licence
number SMKP 21859 for gas Installation only
using BUSHPEX Crimp Gas fittings with the same
corresponding Licence number.
BUSHPEX PE-Xb/AL-PE-Xb DN20x2.2 CLASS 500 GAS AS 4176/ATS5200.478
LN SMKP21859 I >>>>I 20120112 16:18 DN20120112806807080504 EL01
NOT FOR USE IN DIRECT SUNLIGHT B018M

Technical Information
2. BUSHPEX Crimp Gas fittings
7
BUSHPEX Crimp Gas
MARKING: BUSHPEX GAS DN16 CLASS 500 AS 4176 SMKP 21859 EL
BUSHPEX Crimp Gas fittings are manufactured
to a very high standard from a solid brass forged
process. Fittings have long engagement dual
“O” ring Barbs with a Stainless Steel Crimp ring
and a yellow plastic retainer with 4 engagement
sighting holes. All fittings have stamped detail
into their Stainless Steel Crimp Rings clearly
showing Brand, Size, Class, Standard and
Licence Number. Identification Stamping also
appears on the brass fitting where possible or it
will display the letters EL. In addition all
BUSHPEX Crimp Gas Stainless Steel sleeves are
identified with a yellow dot. BUSHPEX Crimp
Gas fittings have been tested and approved in
accordance with the Australian Standard
AS4176 under licence number SMKP21859 for
gas Installation only, using BUSHPEX PEX-AL
Gas Pipe with the same corresponding Licence
number.
MARKING: BUSHPEX GAS DN16 CLASS 500 AS 4176 SMKP 21859 EL

Technical Information
8BUSHPEX Crimp Gas
Pipe & Fitting Protection and Care
during Handling and Installation:
BUSHPEX Crimp Gas PEX-AL pipe and fittings must
be protected from damage through all stages of the
process from transport to storage and installation in
accordance with AS/NZS5601. Provision for pipe
and fitting protection therefore includes but is not
limited to the following:
• Care must be taken to keep pipe free of grit, dirt,
dust and foreign matter.
• Care must be taken to ensure fittings are free of
grit, dirt, dust and foreign matter and the yellow
retainer is securely seated onto the fitting with the
stainless steel crimp ring and dual “O” rings are
seated correctly.
• Pipe must be protected from physical damage
including cuts, abrasion, dents, kinks, tears,
holes, etc.
• Pipe must be protected from long term or
permanent U.V. exposure.
• Pipe and fittings must be protected from
excessive heat or burning, (refer to maximum
operating temperature detailed in Pipe
specification section), chemical / solvent attack,
animal or rodent attack, machinery damage,
other external threats, etc.
• Chemical or corrosive environments.
1. Pipe needs to be protected.
2. Fittings must be wrapped and protected. This
includes all underground installations for all
fittings.
• Pipe support and clipping; both vertically and
horizontally to ensure conformance for
vibration, excessive tension, torsion or
compressive stresses on fittings and pipe. Refer
to pipe specification Chart for spacing.

Technical Information
9
BUSHPEX Crimp Gas
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Pipe penetrations through timber and steel frames and
concrete sections need to conform and may require protection
using grommets, fire collars, sleeving or wrapping. Holes,
notches and cutouts must be accurately drilled “in-line” to
allow movement for any expansion or contraction of the pipe
and fitting so engagements are not exposed to excessive
stress. Refer to Pipe specification Chart for timber frame cut
out limitations.
Pipe Expansion and contraction needs to be accommodated
during installation to allow for movement due to thermal
Linear expansion. Failure to do so may exceed torsional
pullout allowances on fittings resulting in product failure. Refer
to Pipe specification Chart for the Thermal Expansion
co-efficient.
Pipe Bending; BUSHPEX Crimp Gas PEX-AL pipe is flexible but
requires care when bending to avoid kinks, cracks or other
permanent deformation that may restrict flow or put undue
pressure on joints. If the pipe is kinked, bent or damaged in
any way it must be cut out and replaced. BUSHPEX Crimp Gas
elbows are recommended for tight bends and larger pipe sizes
above 32mm. Refer to the Pipe specification Chart for
minimum bending radius and tools for bending.
Connecting Barbs; when soldering connecting barbs, (male or
female) first remove/dismantle the yellow plastic retainer ring,
stainless crimp ring and two “O” rings, then, solder the brass
connecting barbs – allow to cool before assembly. When
assembling the fitting, ensure the yellow 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). Alternatively, use elson PRESS Crimp-On
fittings from copper to BUSHPEX Crimp Gas.

Technical Information
10 BUSHPEX Crimp Gas
Pipe Specifications & Data Sheet:
Timber Frame Plates and Studs
75mm wide timber –maximum cut-out, notch, drill diameter of 19mm
100mm wide timber –maximum cut-out, notch, drill diameter of 25mm.
Timber Joists
Refer AS/NZS5601
BUSH
Crimp Gas 16mm
Nom O.D.
20mm
Nom O.D.
25mm
Nom O.D.
32mm
Nom O.D.
40mm
Nom O.D.
50mm
Nom O.D.
63mm
Nom O.D.
Nominal O.D. (mm) 16 20 25 32 40 50 63 Colour Yellow Yellow Yellow Yellow Yellow Yellow Yellow
Class 500 500 500 500 500 500 500
Standard AS4176/ATS 5200 AS4176/ATS 5200 AS4176/ATS 5200 AS4176/ATS 5200 AS4176/ATS 5200 AS4176/ATS 5200 AS4176/ ATS 5200
Licence SMKP 21859 SMKP 21859 SMKP 21859 SMKP 21859 SMKP 21859 SMKP 21859 SMKP 21859
Maximum Supported distance –Clipping 1.0m 1.25m 1.5m 2.0m 2.0m 2.0m 2.0m
Min Bending Radius by hand 80mm 100mm - - - - -
Min Bending Radius with Bending Spring 50mm 60mm 110mm 150mm - - -
Coil Sizes metres 25, 50 &100 25, 50 &100 25 &50 25 &50 - - -
Straight Length metres 5m 5m 5m 5m 5m 5m 5m
Coefficient of Linear (UOM) Thermal Expansion in mm per meter of pipe for every 10Deg C Temperature variation 0.26 0.26 0.26 0.26 0.26 0.26 0.26
Max Operating temperature 80 Deg C 80 Deg C 80 Deg C 80 Deg C 80 Deg C 80 Deg C 80 Deg C
Max Operating Pressure 70 kpa 70 kpa 70 kpa 70 kpa 70 kpa 70 kpa 70 kpa

Technical Information
11
BUSHPEX Crimp Gas
Underground Pipe installation:
Underground installation of BUSHPEX Crimp Gas PEX-AL
Pipe must be in accordance with AS/NZS5601. The
following points should be noted and referenced for
conformance to the standard:-
Piping beneath a building and in the ground is allowed
with NO joints.
Piping embedded in Concrete is allowed with NO
joints, maximum pressure 70kpa.
Underground installation should include the provision
for a Trace Wire and Marker Tape to be installed to
assist in pipe detection.
Underground installation should comply with standard
for quality of bedding and backfill.
Underground installation must comply with the
required standards for minimum buried depth.
Underground Installation must comply with the
required standard for termination to Metallic risers.
Underground Installation must comply with the
required separation standard for Consumer Gas
Piping.
BUSHPEX Crimp Gas Fittings must be wrapped and
protected using suitable and verified processes for all
in ground installations and corrosive environments.
System Testing:
Pipe and joint system testing must be carried out in
accordance with the standard AS/NZS5601and any
other relevant and applicable local authority codes prior
to burying or concealing the BUSHPEX Crimp Gas PEX-AL
Piping system. It is the responsibility of the Licenced
Installer to ensure that all joints and fittings are inspected,
checked and tested for leaks to ensure safety and
compliance. It is recommended to incorporate a
checking procedure to ensure that each joint has been
correctly crimped by testing every joint with a crimp
gauge and marking as complete.
Proprietary Gas System Identification:
BUSHPEX Crimp Gas PEX-AL Piping system has an
identification Tag as part of its Product Range and must
be permanently attached adjacent to the gas meter or LP
Gas cylinder to identify the system installed on every
installation as detailed in AS/NZS5601. Do not attach
this signage plate to any gas cylinder or other movable
object.
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Technical Information
12 BUSHPEX Crimp Gas
Provision for Pipe Reversion:
As detailed in AS/NZS5601, in certain installations
in some building types it is mandatory for the instal-
lation of reversion fittings to allow for Proprietary
Gas Piping systems like BUSHPEX Crimp Gas to be
extended or additions made for future application. A
Reversion Fitting allows for the connection of a
Proprietary system to be adapted to a standard
Thread or Copper tube. The BUSHPEX Crimp Gas
PEX-AL Piping system Product Range includes the
three variants of Reversion fittings as detailed in the
standard.
3. BUSHPEX Crimp Gas Tools
BUSHPEX Crimp Gas Tools are specifically designed
to be used with the BUSHPEX Crimp Gas PEX-AL
Pipe and Fittings System and must not be used with
other systems. BUSHPEX Crimp Gas Tools are
manufactured to precise specifications and require:
Care during operation and confirmation that
each completed crimp joint is crimped correctly.
The use of the BUSHPEX Crimp Gauge is
required to confirm crimp conformance.
Regular maintenance and cleaning after use to
avoid dirt, dust, grit or moisture damaging the
tool.
Recognition of the jointing guide procedures and
safety recommendations within this Manual and
the Handbook Instructions of the approved
BUSHPEX Crimp battery tool kit.
Specific and approved manual or battery drill
BUSHPEX Crimp Gas PEX-AL Reaming / Calibrating
tools are an essential requirement to round and
deburr every squarely cut pipe end prior to insertion
into the crimp fitting.
Use the BUSHPEX crimp gauge on each crimped
joint to ensure the joint has been sufficiently
crimped.
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Technical Information
13
BUSHPEX Crimp Gas
System Testing
Pipe and joint system testing must be carried out in
accordance with AS/NZS5601 and any other
applicable local authority requirements prior to
burying or concealing the BUSHPEX Crimp Gas
PEX-AL Piping System.
It is the responsibility of the Licenced Installer to
ensure that all joints and fittings are inspected,
tested and checked for leaks to ensure safety and
compliance.
It is recommended to incorporate a checking
procedure to ensure that each joint has been
correctly crimped by testing every joint with a crimp
gauge and marking as complete.
Warranty
BUSHPEX Crimp Gas PEX-AL Piping System carries a
25 year warranty when the system is installed by a
Licenced Gas Fitter in accordance with
AS/NZS5601 and any other relevant and
applicable local authority codes which may take
precedence and established installation practices.
The Licenced Gas Fitter must also have successfully
completed the BUSHPEX Crimp Gas PEX-AL Piping
System Induction and Training. The Installer must
use the installation guidelines set out in this manual
and the Induction Training. Installation must only
ever involve the use of the same approved system of
BUSHPEX Crimp Gas PEX-AL pipe and fittings with
licence SMKP21859 and approved tooling.
Compliance with Australian Standards
BUSHPEX Crimp Gas PEX-AL Piping System is
licensed by SAI Global to Australian Standards
and complies with Australian Standards AS4176
(Licence 21859).

Jointing Procedure
14 BUSHPEX Crimp Gas
Jointing Procedure
Tool inspection
Manual Tools:
Inspect the tool and jaw to ensure it is in good
working order, operates properly and approved
for use with BUSHPEX Crimp Gas fittings and
BUSHPEX PEX-AL pipe. Visually inspect and
ensure the jaws align and have no gap when the
crimp tool is fully compressed and closed. The
jaws must be clean and undamaged – free of
defects, debris and corrosion. Always keep
clean and dry and lubricate after use. If a gap is
visible between the jaws then the tool must be
adjusted, (see Tool Adjustment section and
follow the instruction).
WARNING: An incompatible tool, incorrectly adjusted
tool or damaged jaws may result in a joint failure, tool
damage or both. It will also void the warranty!
Manual Tool Adjustment: The tool will require adjustment if
the jaws do not fully close when compressed OR if the crimp
gauge does not pass easily over both indentations in the
stainless steel sleeve after the crimping process. If this occurs,
follow the procedure below and re-test the tool to ensure
adjustment is correct.
1. Loosen LH and / or RH “Back Nuts” with spanner.
2. Turn LH and / or RH “Adjustment Dials” one increment at
a time.
3. Tighten LH and / or RH “Back Nuts” with spanner.
4. Confirm if the jaws now fully close? If NO – repeat
process ( 1 ) to ( 4 ). If YES – go to step 5.
5. Crimp a joint then check with the crimp gauge until the
crimp auge passes easily over both indentations in the
stainless steel crimped sleeve.
Battery Tools: Tested and approved
tools include:
1. Klauke MAP1, Klauke UAP-1.
2. Novopress ACO-152,
Novopress ACO-203.
3. KPS & KPL.
Above battery tools all require specific
BUSHPEX Jaws to suit the BUSHPEX
Crimp-On piping system.

Jointing Procedure
15
BUSHPEX Crimp Gas
Jointing Procedure:
• Cut the pipe straight and
square using BUSHPEX pipe
cutters. Check for any damage
to the pipe including any surface
damage, cuts, scores, abrasion,
kinks, splits, heat damage.
Re-cut or replace and remove
any physically damaged pipe.
• Round and debur the end of the
pipe using either the specific sized
BUSHPEX Crimp Gas manual
calibrating tool or the BUSHPEX
Crimp Gas Battery drill Calibrating
tool. Match the size of the
calibrating tool to the pipe. Insert
the calibrating tool completely into
the end of the pipe with a twisting
action and rotate 2-3 full turns.
Remove all swarf from outside and
inside the pipe.
Before using the battery tool it is essential that the user reads
and recognises the instructions contained in the manual
included with every tool. Make sure you are aware of the
operating features and functions.
Ensure that only BUSHPEX compatible jaws are used to match
the tool. Check the jaw matches the diameter of the BUSHPEX
PEX-AL pipe and BUSHPEX Crimp gas fittings.
Inspect and test all tools prior to use to ensure they are
functioning properly.
Visually inspect all tools and jaws to ensure they are clean, dry,
free of dust, dirt, grit and corrosion.
It is a requirment to check every crimped joint with the crimp
gauge by passing the crimp gauge over both indentations in
the stainless steel sleeve to ensure proper crimping function.
If the battery warning light comes on or any detection of
incomplete crimping occurs you must change the battery
immediately, check the joint with a crimp gauge and re-crimp
as necessary.
If the crimping tool does not fully compress or the jaws do not
flully close, release the trigger, actuate the retract slide, check
the tool then re-crimp the joint and check with the crimp gauge
to ensure conformance.
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Jointing Procedure
16 BUSHPEX Crimp Gas
• Visually inspect the inside of
the fitting to ensure it is free of
dust, dirt and grit and confirm
the 2 “O” rings are intact and
undamaged.
• For BUSHPEX Manual
Crimping Tools: Centralise the
BUSHPEX Manual tool – sized
to suit the pipe and fitting with
jaws over the stainless steel
crimp ring and butted up
against the yellow retaining ring. Slowly bring the lever handles
together closing the jaws completely compressing the joint.
NOTE: DO NOT position the manual tool crimp jaws over the
yellow retaining ring. This will damage the fitting, destroy the
integrity of the fitting and void warranty. If this occurs you must
cut-out the fittings and replace immediately.
fitting. Activate the battery tool and compress the stainless crimp
ring completely until the jaw is closed.
according to instructions, then re-crimp and test.
• Insert the BUSHPEX PEX-AL
pipe into the BUSHPEX Crimp
Gas fitting. Ensure that the pipe
is fully inserted into the fitting by
viewing the pipe through the 4
inspection holes in the yellow
plastic retaining ring.
• For BUSHPEX approved Battery
Crimping Tool: Align the Battery
tool jaw to seat over the plastic
retaining ring at one end and cover
the stainless crimp ring. This
position locates the jaw onto the
• Check each joint has been
compressed correctly by using
the BUSHPEX Crimp Gauge. If
the BUSHPEX crimp gauge
does not pass over the crimp
indentations check tooling,
inspect and adjust the tool

BUSHPEX Crimp Gas PEX-AL Calibration Tool
Battery Drill Calibration Tool
Specific tooling for BUSHPEX Crimp Gas PEX-AL piping system.
IMPORTANT NOTES:
• Always set the drill speed no greater than 500rpm.
• Water & Gas calibrating tools are NOT interchangeable.
Calibration Procedure
BUSHPEX Crimp Gas:
• Confirm you have all tooling to
complete the job – DO NOT
start without these:
BUSHPEX Crimp Gas Calibration
tool – sized to suit the pipe,
Battery Drill – charged,
• Cut the BUSHPEX Gas PEX-AL
pipe to length, using BUSHPEX
pipe cutter.
Calibrate the end of the BUSHPEX
Gas PEX-AL pipe using the specific
sized calibrating tool to round and
deburr the end of the pipe. Ensure
the calibrating tool has been
completely inserted into the
BUSHPEX Gas PEX-AL pipe with at
least 2-3 full turns. Remove all
swarf from outside and inside of
pipe.
• Continue as per page 18.
IMPORTANT:
This system MUST be installed by a licenced Gas Fitter in
accordance with AS/NZS5601, this procedure and using
BUSHPEX Crimp Gas PEX-AL pipe, fittings and approved tools,
otherwise warranty will be void.
It is a requirment to incorporate a visual checking system to
confirm every joint has been crimped prior to concealing joints.
This should be done with a crimp gauge test on every joint.
BUSHPEX Crimp Gauge, BUSHPEX Crimp Gas PEX-AL
pipe & fittings.
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Jointing Procedure
17
BUSHPEX Crimp Gas

Frequently Asked Questions
18 BUSHPEX Crimp Gas
Is there anything I need to do before using a Manual crimp
Tool?
YES – follow all of these important steps below:
Ensure that the tool is compatible with BUSHPEX GAS
PEX-AL Pipe and BUSHPEX Crimp Gas Fittings
Ensure the tool is in good working order
Ensure that the jaws align and have no gap when closed
Ensure that the jaws are clean, free of defects and debris
Refer to the Jointing Procedure in this manual for correct
method
If the jaws of the Manual Tool do not align when closed
what must I do?
Adjust the jaws and test until the jaws align and have no
gap. Follow the process described in the section, “jointing
procedures – Tool adjustment”
Is there anything I need to do before using the approved
battery crimp Tool?
YES – follow all of these important steps below:
Ensure that the tool and jaws are compatible with BUSHPEX
GAS PEX-AL Pipe and BUSHPEX Crimp Gas Fittings
Read and recognise the instructions contained in the
manual
Ensure the correct jaws match the tool, the pipe and the
fittings
Inspect the tool to ensure it functions properly
Inspect the jaws to ensure they’re clean, dry, free of dirt grit
and corrosion
If the battery Tool does not fully compress what should I do?
Release the trigger and jaws by actuating the retract slide
Recharge the battery or replace with charged battery
Crimp the joint a second time and check with the crimp
gauge
Cut off the pipe and fitting if it fails to crimp properly
Do I need to inspect the pipe end prior to crimping?
YES, always inspect the pipe and ensure it is cut square, has
been “rounded & deburred”, has no rough edges and the
internal and external pipe is undamaged prior to crimping.
FAQ
i)
ii)
iii)
iv)
v)
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Frequently Asked Question
19
BUSHPEX Crimp Gas
Do I need to “round and deburr” the pipe prior to every
crimp joint?
YES - this is a requirement for every joint – ensure that the
reaming/calibrating tool suits BUSHPEX Gas PEX-AL pipe
Do I need to inspect the crimp fitting prior to every crimp
joint?
YES - you should visually inspect each fitting to ensure it
is free of any dirt and grit, has both “O” rings intact, the
stainless crimp sleeve is properly located and all parts are
undamaged – clean/ replace/discard as required.
How can I tell if the pipe has been pushed into the fitting
properly?
Inspect the fitting to ensure the pipe is visible through
all 4 witness openings
Do I need to check every crimp joint has been
compressed properly?
YES - you should check every crimp joint has been
compressed properly by testing with the crimp gauge
Is there a procedure to follow when soldering
connecting barbs?
YES, ALWAYS:
Dismantle the fitting prior to heating and brazing
Allow to cool fully before assembly
Ensure the yellow plastic retainer rings, two “O” rings
and stainless steel sleeve are installed correctly – refer
to picture assembly detail on page 9 of this brochure.
What are the requirements for installing the BUSHPEX
Crimp Gas system?
Must only be installed by a licenced Gas Fitter
Must be installed in accordance with AS/NZS5601
Must be installed using the BUSHPEX Crimp Gas
PEX-AL Piping system procedures
Must be installed using BUSHPEX Gas PEX-AL pipe,
BUSHPEX Crimp Gas fittings and tools, licence
SMKP21859
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Pipe Sizing Tables
20 BUSHPEX Crimp Gas
PIPE SIZING - NATURAL GAS
The following gas pipe sizing tables were calculated using
the method described in AS/NZS 5601.
Nom diam.
(DN)
Pressure drop of 0.075 kPa
for supply pressure of 1.1 kPa on Natural Gas
Length of straight pipe m
2 4 6 8 10 12 14 16 18
16 63 44 35 30 27 24 22 21 19
20 150 103 83 71 63 57 52 49 46
25 268 184 148 127 112 102 94 87 82
32 591 406 326 279 247 224 206 192 180
40 982 675 542 464 411 373 343 319 299
50 1873 1287 1034 885 784 710 654 608 570
63 4163 2861 2298 1967 1743 1579 1453 1352 1268
20 25 30 35 40 45 50 55 60
16 18 16 15 13 13 12 11 11 10
20 43 38 35 32 30 28 26 25 24
25 77 68 62 57 53 50 47 45 43
32 170 151 136 126 117 110 104 98 94
40 283 251 227 209 194 182 172 164 156
50 539 478 433 398 370 348 328 312 297
63 1198 1062 962 885 823 772 730 693 661
Nom diam.
(DN)
Pressure drop of 0.12 kPa
for supply pressure of 1.25 kPa on Natural Gas
Length of straight pipe m
2 4 6 8 10 12 14 16 18
16 85 58 47 40 36 32 30 28 26
20 194 133 107 92 81 74 68 63 59
25 351 241 194 166 147 133 123 114 107
32 760 523 420 359 318 288 265 247 232
40 1308 899 722 618 548 496 456 425 398
50 2445 1680 1350 1155 1024 928 853 794 745
63 5440 3739 3003 2570 2278 2064 1899 1766 1657
20 25 30 35 40 45 50 55 60
16 24 22 20 18 17 16 15 14 13
20 56 49 45 41 38 36 34 32 31
25 101 90 81 75 69 65 62 58 56
32 219 194 176 162 150 141 133 127 121
40 376 334 302 278 259 243 229 218 208
50 704 624 565 520 484 454 429 407 388
63 1565 1387 1257 1156 1076 1009 954 906 864
PIPE SIZING TABLE 2 –Flow rates in units of MJ/h
PIPE SIZING TABLE 1 –Flow rates in units of MJ/h
NOTE: Allowance for fittings has been incorporated into the table listed below
which is equivalent to a 50% increase of the length of the pipe. This method is
detailed in the Standard, AS/NZS 5601 Appendix F section F1.3.