In today’s plumbing industry, efficiency, compliance, and reliability aren’t optional — they’re essential. With Australia’s tightening regulations around lead-free materials and growing demand for streamlined installation systems, plumbers need solutions that reduce complexity while staying fit for purpose.
That’s where UNIPEX™ comes in.
Designed for Australian conditions, the UNIPEX™ system provides a practical water and gas plumbing solution built around three key advantages:
-
One fitting for both water and gas
-
Lead-free DZR silicon brass construction
-
PN20 SDR9 PEX-B pipe
If you’re looking for a straightforward, compliant PEX option for water and gas installations, this guide explains why the UNIPEX™ range, available at Burdens, is a strong option for many trade applications.
Explore the full range here:
https://burdensbathrooms.com.au/collections/unipex
The Challenge: Modern Plumbing Demands More
Australian plumbing standards are among the strictest in the world. Installers need to work in line with:
-
AS/NZS 3500 for water services
-
AS/NZS 5601 for gas installations
-
Lead-free compliance requirements
-
Increasing expectations around durability and warranty support
At the same time, plumbers are under pressure to:
-
Work faster
-
Reduce installation errors
-
Minimise stock complexity
-
Lower material handling costs
Traditional systems often require separate fittings for water and gas, which can increase the chance of confusion on site. Add O-rings, multiple SKUs, and mixed materials into the equation, and the system can become more complicated than it needs to be.
UNIPEX™ was developed to help simplify these common issues.
One Fitting for Water & Gas: A Simpler System
One of the key advantages of UNIPEX™ is its universal fitting design.
Instead of carrying separate fittings for potable water and gas systems, UNIPEX™ uses one common fitting across both applications. This simple difference can make a big impact on site:
Reduced Inventory
You don’t need to stock duplicate water and gas fittings in multiple sizes.
Less Confusion on Site
Fewer product variations can help reduce mistakes when selecting components.
Faster Installation
Simplified selection can speed up installs and reduce downtime.
Lower Risk of Cross-Application Errors
Using one fitting platform across both systems helps reduce the risk of selecting the wrong component.
For busy plumbers across multiple jobs, this can make day-to-day installation work more straightforward.
Lead-Free DZR Silicon Brass: Built for Compliance
Lead-free plumbing is now a key requirement in Australia.
UNIPEX™ fittings are made from lead-free DZR (Dezincification Resistant) silicon brass, offering:
-
Suitability for compliant installations (when installed to manufacturer requirements and relevant standards)
-
Strong corrosion resistance
-
Long-term performance in challenging water conditions
-
Suitability for potable water systems
DZR brass is designed to resist dezincification — a condition where zinc can leach from brass in certain water environments, weakening fittings over time.
By using lead-free DZR silicon brass, UNIPEX™ provides a durable and compliant fitting material suited to modern plumbing requirements.
Stainless Steel Crimp Ring: Secure Mechanical Joint
Each UNIPEX™ fitting includes a stainless steel crimp ring.
When installed using approved UNIPEX™ crimping tools, the system is designed to provide:
-
Consistent compression
-
Strong mechanical grip
-
Reliable joint integrity
-
Long-term leak resistance
The crimping process is fast and straightforward, making it well suited to both new builds and retrofit work.
No O-Ring Design: Fewer Failure Points
Many plumbing systems rely on internal O-rings to create a seal. Over time, O-rings can:
-
Degrade due to heat or chemicals
-
Shift during installation
-
Be affected by pressure changes
UNIPEX™ uses a no O-ring design.
By removing this potential failure point, the system relies on mechanical strength and crimp compression for long-term performance.
This can be especially valuable in concealed installations where access for future repairs may be limited.
PN20 SDR9 PEX-B Pipe
The UNIPEX™ system includes cross-linked polyethylene (PEX-B) pipe rated PN20 with SDR9 wall thickness.
Multi-Layer Construction
The pipe consists of:
-
An inner core of PEX-B
-
A tough outer layer of high-density polyethylene (HDPE)
This construction is designed to support:
-
Pressure performance
-
Flexibility during installation
-
Resistance to corrosion and scaling
-
Durability during handling on site
Suitable for Multiple Applications
UNIPEX™ PEX-B pipe is suitable for use across a range of applications, including:
-
Potable hot water
-
Potable cold water
-
Recycled water systems
-
Rainwater systems
-
Glycol-based systems
This makes it a versatile option for residential homes, commercial buildings, renovations, and extensions (subject to product approvals and installation requirements).
Where UNIPEX™ Fits
UNIPEX™ is a practical option for plumbers looking for a compliant, reliable, and cost-conscious PEX system — especially on jobs where speed, simplicity, and value are key priorities.
For some projects, plumbers may prefer a premium system based on installation preference or project requirements. The right choice will always depend on the job, budget, and specification.
At Burdens, we stock options to support different project needs.
Faster Installs with Crimp Jointing
Time on site matters. The UNIPEX™ crimp jointing method is designed to be:
-
Fast
-
Secure
-
Simple
-
Repeatable
With the correct approved crimping tool, installers can create consistent joints quickly and efficiently.
Compared to more complex systems, crimp jointing can help reduce:
-
Installation time
-
Tool changes
-
Installer fatigue
-
Error rates
Built for Australian Conditions
Australia’s climate can vary dramatically — from coastal humidity to inland heat.
UNIPEX™ materials are selected to suit demanding conditions. The combination of:
-
DZR silicon brass
-
Stainless steel crimp rings
-
HDPE outer pipe layer
supports reliable performance across a wide range of environments.
Backed by a 25-Year Warranty
Confidence matters in plumbing installations.
UNIPEX™ is backed by a 25-year warranty, giving added reassurance for:
-
Plumbers
-
Builders
-
Developers
-
Property owners
A long warranty period is an important sign of confidence in the system when installed correctly.
Ideal Applications for UNIPEX™
The UNIPEX™ system is suitable for a range of projects, including:
Residential Homes
New builds, renovations, and extensions requiring water and gas supply.
Multi-Residential Developments
A simpler fitting platform can assist with stock management across larger projects.
Commercial Fit-Outs
Suitable for office, retail, and hospitality plumbing applications.
Maintenance & Upgrades
A practical option for repairs, upgrades, and system extensions.
PEX-B and Project Suitability
When comparing PEX systems, the best option usually comes down to project type, install method, budget, and installer preference.
UNIPEX™ PEX-B is a strong option where the priority is a compliant, straightforward, and cost-conscious system for water and gas plumbing.
If you’re weighing up system options for a project, the Burdens team can help you choose the right fit.
Why Choose UNIPEX™ from Burdens?
When purchasing from Burdens, you gain access to:
-
A trusted Australian plumbing supplier
-
Convenient trade locations
-
Full UNIPEX™ product range
-
Knowledgeable support
Browse the complete UNIPEX™ collection here:
https://burdensbathrooms.com.au/collections/unipex
From fittings and pipe to accessories, the collection includes what’s needed for compliant water and gas installations.
Reducing Risk on Site
Plumbing errors can be costly. By simplifying the system setup, UNIPEX™ can help reduce:
-
Incorrect product selection
-
Compatibility issues
-
Installation variability
-
Future leak risk
A universal fitting system paired with approved tools supports safer, more consistent outcomes on site.
Choosing a System Aligned with Current Requirements
As regulations continue evolving — especially around lead-free compliance — it’s important to choose systems that align with current standards and installation requirements.
UNIPEX™ is designed to support modern plumbing requirements, helping installers work with confidence on compliant water and gas installations.
The Bottom Line
The UNIPEX™ system offers modern plumbers a practical combination of:
-
One fitting for water and gas
-
Lead-free DZR silicon brass construction
-
PN20 SDR9 PEX-B pipe
-
Stainless steel crimp ring
-
No O-ring design
-
Fast crimp jointing method
-
25-year warranty
By combining efficiency, compliance, and durability in one system, UNIPEX™ helps simplify plumbing installations while remaining cost-conscious and fit for purpose.
If you’re looking for a straightforward PEX option to help reduce stock complexity and support compliant installs, UNIPEX™ is well worth considering.
Explore the full UNIPEX™ range at Burdens today:
https://burdensbathrooms.com.au/collections/unipex
