Watermark elson BUSH PEX User manual

WaterMark
Standard AS/NZS 2537.2
WMKA21276
TM
WaterMark
Standard AS 2492
WMKA21274
TM
Version 3.0

Elson Australasia Pty Ltd proudly presents the BUSHPEX range of PEX
Plumbing Systems including, Pull-On, Crimp-On for water and BUSHPEX
Crimp Gas.
This brochure provides specification and installation information relevant
to the BUSHPEX Crimp-On PEX Plumbing system for water reticulation,
16 to 25mm.
BUSHPEX Crimp-On PEX for Water and BUSHPEX Crimp Gas PEX-AL
Systems use the same BUSHPEX Crimp tools, Jaws and crimp gauges.
Calibrating tools are specific to the BUSHPEX Crimp-On Water Plumbing
system.
The BUSHPEX Crimp-On PEX Plumbing System comprises two main
components, a flexible cross-linked high density polyethylene pipe and
solid DR Brass crimp fittings with double “O” ring seals and stainless steel
crimp sleeves.
BUSHPEX Crimp-On Plumbing Systems are a cost effective alternative to
other plumbing systems. The BUSHPEX Crimp-On PEX system is fast and
easy to install, usually with fewer fittings. The flexible pipe is light weight
and resists corrosion and scale affect. Water flow noise is low in PE-Xa
pipe and water hammer is significantly reduced.
BUSHPEX Pipe is a genuine PN20 PE-Xa pipe manufactured by Elson
under strict quality controls at our ISO9001 accredited manufacturing
facility to Australian Standards AS 2492 with watermark certificate
WMKA 21274.
BUSHPEX pipe is suitable for use in hot and cold water services for both
domestic and commercial applications. BUSHPEX Pipe options include
black pipe for either hot or cold water, red for hot water, green for
rainwater harvesting and lilac for recycled water.
BUSHPEX Crimp-On fittings are a solid brass double crimp fitting
with double “O” ring secondary seal and stainless steel crimp sleeves.
The fittings are manufactured by Elson under strict quality controls
at our ISO 9001 accredited manufacturing facility to Australian and
New Zealand Standards AS/NZS 2537.2 with watermark certificate
WMKA 21276.
BUSHPEX Crimp-On specific tooling comprises of both manual and
battery hydraulic options to make installation fast and easy. All tooling
used must be verified before use to ensure suitability to the BUSHPEX
Crimp-On systems. BUSHPEX Crimp-On calibrating tools and crimp
gauges are essential requirements for the installation procedures as
detailed in this manual.
All products are fully warranted for a period of 25 years against
manufacturing defects when installed in accordance with AS/NZS 3500
and the BUSHPEX Crimp-On PEX Plumbing System Manual by a licenced
Plumber using all BUSHPEX pipe and fittings only and approved BUSHPEX
tooling.

Contents
Features and Benefits....................................
Technical Information....................................
Pipe Specification Chart.................................
System Testing & Warranty............................
FAQ................................................................
BUSHPEX Crimp-On Tool Inspection...............
BUSHPEX Crimp-On Jointing Procedure.........
Battery Drill Calibration Tool Procedure.........
Fittings...........................................................
BUSHPEX Ball Valves......................................
Tools..............................................................
Piping & Accessories.....................................
4
6
8
16
19
22
23
25
26
31
32
34
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Features and
Benefits
BUSHPEX Crimp-On PEX Plumbing System:
• Manufactured, distributed and supported by Elson.
• 25 year product warranty against product defect when
installed according to detailed requirements.
• Product manufactured by Elson to relevant Australian
Standards by our ISO 9001 approved manufacturing
facility with all Watermark Certification by SAI Global.
• Cost effective alternative to other systems.
• Fast and easy to install.
• BUSHPEX Crimp-On tools & jaws can be used for both
BHSHPEX Crimp-On water and BUSHPEX Crimp Gas PEX-AL
systems.
• BUSHPEX pipe properties:
- Low water flow noise.
- Strong impact resistance.
- Heat and corrosion resistant.
- Light weight and easy to install.
- Significantly reduces water hammer.
- High Pressure rating 2000kPa @ 20C.
- Smooth inner core to reduce pressure loss.
- Low levels of thermal conductivity and expansion.
- Coils provide fast installation, less joints, save time,
save costs.
Features and Benefits
4 eelson BUSHPEX Crimp-On V3.0 Dec 2022

- Available in Black for hot and cold water, Red
specifically for hot water, Green for rainwater
harvesting and Lilac for recycled water in sizes
16mm, 20mm and 25mm.
- Same pipe is compatible with two BUSHPEX
jointing systems - Crimp-On, Pull-On
• BUSHPEX Crimp Fitting properties:
- Double “O” ring, double indentation Crimp jointing
system is the most secure Crimp jointing system on
the market that is preferred internationally.
- Long entry stainless steel crimp sleeves that don’t
fall off the fitting.
- Four easy to inspect witness holes to confirm
complete insertion of pipe into fitting.
- Blue retaining ring signifies “water” and also locates
the Battery Tool Jaw.
- German manufactured Battery Tools and Jaws
developped, tested and approved for BUSHPEX.
- DR Brass quality fittings – strictly controlled
according to ISO 9001 systems.
• National support network for training, technical
information and tool service.
Features and Benefits
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BUSHPEX Crimp-On is a complete plumbing system
comprising of PE-Xa pipe in sizes 16, 20 and 25mm plus
a comprehensive range of DR Brass Crimp fittings with
Stainless Steel sleeves. Manual and battery tooling
options for calibrating and crimping the pipe and fittings
completes the system, whilst the crimp gauge confirms
each joint has been crimped properly.
BUSHPEX Crimp-On Pipe
BUSHPEX PE-Xa PN20 pipe is specifically designed for
the BUSHPEX Crimp-On jointing system in conformance
with AS 2492 with watermark certificate WMKA 21274.
BUSHPEX PE-Xa PN20 is compatible with all two BUSHPEX
jointing systems for water including:
• BUSHPEX Pull-On
• BUSHPEX Crimp-On
BUSHPEX Pipe is available in four colours to identify the
specific pipe application.
Black – Suitable for potable hot and cold water plumbing
in domestic and commercial applications.
Red – Specifically for hot water lines in domestic and
commercial applications.
Lilac – Specifically for recycled, non-potable water.
Green – Specifically for Rainwater.
NOTE: PE-Xa pipe exposed to sunlight must be protected.
Technical
Information
Technical Information
6 eelson BUSHPEX Crimp-On V3.0 Dec 2022

BUSHPEX Crimp-On fittings
BUSHPEX Crimp-On fittings are manufactured to high
standard production processes. BUSHPEX Crimp-On
fittings use only D.R.BRASS (Dezincification Resistant)
which is batch tested and conforms to AS 2345 . Fittings
have long engagement, dual “O” ring barbs with a
Stainless Steel Crimp ring and blue retainer with 4
engagement witness holes. All fittings have stamped
detail into their Stainless Steel Crimp Rings clearly
showing Brand, Size, Pressure Rating, Standard and
watermark certificate Number. Identification stamping
also appears on the brass fitting where possible or it
will display the letters “EL”. BUSHPEX Crimp-On fittings
have been tested and approved in accordance with the
Australian and New Zealand Standard AS/NZS 2537.2 with
watermark certificate WMKA 21276.
BUSHPEX Crimp-On fittings are avaliable in DN16, DN20 &
DN25. Refer to the full product listing in this manual.
STAINLESS
STEEL SLEEVE
DR BRASS
WINTNESS
OPENING
DOUBLE
‘O’ RING
Technical Information
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Technical Information
8 eelson BUSHPEX Crimp-On V3.0 Dec 2022

Technical Information
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Pressure Loss
Pressure loss calculations using the Hazen-Williams
equation. The pressure loss was calculated for both the
internal mean inside diameter of SDR 9 of AS 2492:2007.
To generate the theoretical calculations, the following
assumptions were applied:
• Friction coe󰀩cient of plastic pipe at 15.5°C was taken as
140.
• The internal diameter used for calculation was taken at
the theoretical mean diameter as per the manufacturing
tolerances featured in Table 3.1 of AS 2492:2007 for SDR 9.
The following is a list of limitations of the Hazen-Williams
equations but not limited to:
• Published literature suggests that the Hazen-Williams
equation is reliable for water at 15.5°C with velocity ow
less than 10 feet/s or 3.048 m/s.
• Changes in water temperature, density and media will alter
the pressure loss.
• Installation where pipework which is curved or bent could
alter the internal diameter.
• Installation of tting and valves within pipeline network.
• Variations in manufacturing tolerances of wall thickness and
internal diameter of the PEX pipe in each SDR class.
• Variations in the actual internal surface friction coe󰀩cient.
When used to calculate the head loss with the International System of Units, the
equation becomes:
Where:
• S = Hydraulic slope
• hf = head loss in meters (water) over the length of pipe
• L = length of pipe in meters
• Q = volumetric ow rate, m3/s (cubic meters per second)
• C = pipe roughness coe󰀩cient
• d = inside pipe diameter, m (meters)
Note: pressure drop can be computed from head loss as hf × the unit weight of
water (e.g., 9810 N/m3 at 4 deg C)
Source: Wikipedia

Technical Information
10 eelson BUSHPEX Crimp-On V3.0 Dec 2022
0.01
0.1
1
10
100
1000
10000
100000
0.01 0.1 1 10
Pressure Loss (kPa/m)
Flow Rate (L/s)
Pressure Loss PEX SDR 7.4
1.5
4.0
0.20
3.0
5.0
7.0
10.0
12.0
1.75
0.10
0.15
0.25
0.30
0.40
0.50
m/s 1.0
2.0
2.5
6.0
1.25
DN16
DN20
DN25

Pipe & Fitting Protection and Care during
Handling and Installation
BUSHPEX pipe and Crimp-on fittings must be protected
from damage through all stages of the process from
transport to storage and installation in accordance with
AS/NZS 3500. Provision for pipe and fitting protection
therefore includes but is not limited to the following:
• Care must be taken to keep the pipe and fittings free
of grit, dirt, dust and any foreign matter. All blue
retaining rings must be securely seated onto the
fitting along with the stainless steel crimp sleeve and
dual “O” rings.
• Pipe must be protected from physical damage.
Including cuts, abrasions, dents, kinks, tears, holes,
etc.
• Pipes, either black, red, green or lilac, are not to be
installed in direct sunlight.
• Pipe must be protected from long term or permanent
U.V. exposure, by way of lagging, enclosing in a
conduit etc.
• Pipe and fittings must be protected from excessive
heat or burning, chemical / solvent attack, animal
or rodent attack, machinery damage, other external
threats, etc.
• Pipe must never be installed where it could be
exposed to a naked flame. PE-Xa Pipe has the
potential to ignite and continue to burn after the
source of the flame is extinguished. In accordance
with AS/NZS 3500, all plastic pipe for water supply
must be protected from excessive ambient heat.
• Chemical or corrosive environments.
- Pipe must be protected.
- Fittings must be wrapped and protected. This
includes all underground installations for all fittings.
Technical Information
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• Pipe support and clipping, both vertically and
horizontally is required to ensure conformance
for vibration, excessive tension, torsion or
compressive stresses on fittings and pipe. Refer
to Pipe Specification Chart for spacing.
• Pipe penetrations through timber and steel
frames and concrete sections must conform and
may require protection using grommets, fire
collars, sleeving or wrapping. Holes, notches and
cut-outs must be accurately drilled “in-line” to
allow movement for expansion and contraction
of the pipe and fittings so joints 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 the torsional pull-out
allowances on fittings resulting in leakage. Refer
to the Pipe Specification Chart for the Thermal
Expansion Co-efficient.
• BUSHPEX pipe is flexible but requires care when
bending to avoid kinks or other permanent
deformation that may restrict flow or put
undue pressure on joints. If the pipe is kinked
or damaged in any way it must be cut-out
and replaced. BUSHPEX Crimp-On elbows are
recommended for tight bends. Refer to the Pipe
Specification Chart for minimum bending radius
and tools for bending.
Technical Information
12 eelson BUSHPEX Crimp-On V3.0 Dec 2022

• Connecting Barb soldered connection require special
attention. Prior to crimping and soldering, remove/
dismantle the blue retaining ring, stainless steel crimp
ring and two “O” rings. Solder the brass connection
barb and allow to cool before re-assembly. When
assembling the fittings ensure the blue plastic
retainer ring, the two “O” rings and stainless sleeve
are installed correctly. Refer to the picture on page 7
of this brochure for assembly detail.
• In accordance with AS/NZS 3500 regions with
extreme hot or cold temperatures require
appropriate product selection and/or insulation for
protection and compliance. Consideration should
also be given to insulating the pipe for energy
efficiency as well as the prevention of condensation
which can occur in hot and cold lines.
Underground Installation
NOTE: It is a requirement to pressure test the pipe
and fittings in accordance with AS/NZS 3500 prior to
burying or concealing the BUSHPEX Plumbing System.
Underground installation of BUSHPEX Crimp-On pipe
and fittings must be in accordance with AS/NZS 3500
including but not limited to the following :
• Minimum buried depth required by standards.
• Minimum pipe separation distance.
• Wrapping and protection.
• Conduit sleeving through slab penetration.
• Underground Piping installation recommended with
no joints.
• Concrete slab piping must be continuous with no
joints.
Technical Information
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BUSHPEX Crimp-On Tools
BUSHPEX Crimp-On Tools are specifically designed to be
used with the BUSHPEX Crimp-On PEX Pipe and fitting
System and must not be used with other systems. BUSHPEX
Crimp-On Tools are manufactured to precise specifications
and require care and regular maintenance to ensure
accurate and consistent operation. The cleaning of tools and
jaws is recommended after each use. Always keep your tools
and jaws free of dirt, dust, moisture and corrosion. Lubricate
jaws regularly to provide smooth operation.
It is essential for all installers to read and recognise the
operational requirements of the tools along with the Jointing
Procedures and safety recommendations included in this
manual and the Tool Instruction Manual.
Rounding the pipe with the BUSHPEX approved Manual
or battery drill calibrating tool adaptor is an installation
requirement which saves time and effort with a smooth
insertion over the “O” ring.
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.
IMPORTANT
– Please consult the Jointing Procedure
included in this manual. This Guide procedure is a product
installation requirement.
Ring Mains/Recirculating Hot Water Systems.
If not configured correctly, the entire plumbing system
may have a dramatically reduced service life.
Recirculating Hot Water Systems or Ring Mains minimise
the time it takes to get hot water to reach an appliance or
outlet. It is also known that the continuous flow of water
with exposure to high temperatures and high velocity makes
this a very extreme and demanding application, whether
Technical Information
14 eelson BUSHPEX Crimp-On V3.0 Dec 2022

using copper, Pex, or other piping materials.
To ensure system service life is maximised and to cater for
the performance tolerances of heat sources, the following
installation and water quality guidelines must be followed
on any circulating hot water systems using Bushpex
plumbing system in order to maintain the product warranty.
• Maximum pressure within the ring mains / recirculating
hot water systems must be limited 500kPa (as per AS/
NZS 3500) .
• Maximum water temperature must not exceed 60°C.
• The pipe work design and recirculating pumps must be
sized to limit the water velocity to the requirement of
AS/NZS 3500 for non-metallic piping. Where copper pipe
is part of the installation, the velocity restrictions for this
material is extremely critical and must not be exceeded.
• A timer controlled recirculation pump must be used
with a maximum circulation time of 12 hours per 24-
hour period. All pipe work should be insulated and the
recirculating pump must be thermostatically controlled,
to further reduce stress on the system and minimise
energy consumption.
• The system layout of pipework and fittings should be
designed with long wide sweeping pipe bends with
limited use of fittings.
• Water quality - Australian city potable water reticulation
systems as defined in the Australian Drinking Water
Guidelines.
ELECTROCUTION WARNING!
The potential threat of electrocution and death must
be recognised if an earth line is disconnected by cutting
metal pipes. ALWAYS check with a licenced electrician
prior to proceeding.
Technical Information
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System Testing
Pipe and joint system testing must be carried out in
accordance with AS/NZS 3500 and any other applicable
local authority requirements prior to burying or concealing
the BUSHPEX Crimp-On Plumbing 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
The BUSHPEX Crimp-On Plumbing System carries a 25 year
product warranty which covers product manufacturing faults
and defects. This warranty only applies under the following
requirements:
• The system must have been installed by a licenced
Plumber.
• Proof of installation by a licenced Plumber is required.
• Proof of purchase is required.
• Installation must be in accordance with AS/NZS 3500.
• Installation must be in accordance with any other relevant
and applicable local authority codes which may take
precedence.
• Installation must be in accordance with established
installation practices.
• Installation must be in accordance with the jointing
procedures included in this manual.
• Installation must only ever involve the use of the same
approved BUSHPEX Pipe (watermark certificate
WMKA 21274), BUSHPEX Crimp-On fittings (watermark
certificate WMKA 21276) and BUSHPEX approved tooling.
System Testing & Warranty
16 eelson BUSHPEX Crimp-On V3.0 Dec 2022

Elson Australasia Pty Ltd undertakes to repair or replace
product which is found to be faulty or defective in
workmanship or manufacture according to the warranty
conditions. The benefits provided to the consumer by
this warranty are in addition to other rights and remedies
available to the consumer under the law.
To make a warranty claim please contact Elson Australasia
Pty Ltd with your contact details, proof of purchase and
Licenced Installers documentation details. If the product
has not been installed please contact the place of
purchase and return. If there is a problem returning the
product please contact Elson Australasia Pty Ltd. To make
a claim under warranty you must abide by the warranty
conditions.
Elson Australasia Pty Ltd
ABN: 45 059 613 991
38 Eddie Road, Minchinbury, 2770.
Phone: [phone] Fax: [phone]
Email: [email protected]
Our products come with guarantees that cannot be
excluded under the Australian Consumer Law. You
are entitled to a replacement or refund for a major
failure and for compensation for any other reasonably
foreseeable loss or damage. You are also entitled to have
the goods repaired or replaced if the goods fail to be of
acceptable quality and the failure does not amount to a
major failure.
To the extent of the Law, Elson shall not be liable for
any consequential loss or damage of any kind caused
by any product faulty or defective in workmanship or
manufacture.
Warranty
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Warranty
18 eelson BUSHPEX Crimp-On V3.0 Dec 2022

FAQ
Can BUSHPEX pipe be installed under a slab?
YES – with the following requirements
• Installation in accordance with AS/NZS 3500.
• Installed within BUSHPEX corrugated sleeve conduit.
• Must be sleeved when penetrating through a slab.
• Installed in a single continuous length without fittings.
Can BUSHPEX pipe be used for underground cold water
service applications?
YES – when installed in accordance with AS/NZS 3500
requirements.
Can BUSHPEX pipe and fittings be used to connect solar
panels to the storage tank?
NO – Australian Standards do NOT allow PE-X Pipe to be
used on the flow or return lines between solar panels
and solar storage vessels.
Can braze-on adaptors be installed after crimping
BUSHPEX Pipe?
NO – Brazing must only ever be done prior to the
crimping of the BUSHPEX pipe to the fittings with “O”
rings, blue plastic retaining ring and Stainless Steel Sleeve
removed. Other option? Use BUSHPEX PRESS fittings
from copper to BUSHPEX Crimp-On.
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 comatible with BUSHPEX PEX
pipe and BUSHPEX Crimp-On Fittings.
Frequently asked questions
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• Ensure the tool is 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 Jointing Procedure in this manual for correct
method.
If the jaws of the Manual Crimp 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 is compatible with BUSHPEX Pex
Pipe and BUSHPEX Crimp-On 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 if functions properly.
• Inspect the jaws to ensure they’re clean, dry, free of dirt.
If the battery Crimp-On Tool does not fully compress what
must 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.
Frequently asked questions
20 eelson BUSHPEX Crimp-On V3.0 Dec 2022