Valves, Pipework and Fittings
Shop hot water valves, pipework and fittings online from Hot Water Outlet, with fast delivery across Australia and same day delivery available in select metro areas on eligible orders. This collection brings together the essential connection parts, safety valves, pressure control valves and hot water fittings needed for electric, gas, heat pump, solar and continuous flow hot water systems.
Whether you are replacing a worn valve, matching existing pipework, ordering parts for a hot water system changeover, or stocking up on common fittings, Hot Water Outlet makes it easier to find the right hot water plumbing supplies in one place.
Buy Hot Water Valves, Pipework and Fittings Online
Hot water systems rely on the right valves and fittings to manage pressure, temperature, flow direction and safe water delivery. Choosing the wrong valve, incorrect kPa rating or unsuitable connection size can cause compatibility issues, leaks, pressure problems or delays.
This collection may include:
Tempering valves
Pressure limiting valves
Expansion control valves
PTR valves
Isolation valves
Non-return valves
Duo valves
Cold water expansion valves
Hot water connection kits
Copper connections
Braided connections
Pipe fittings
Unions and adaptors
Drain cocks
Elbows, tees and reducers
Hot water spare fittings and accessories
Fast Delivery Across Australia
Hot Water Outlet supplies hot water valves, fittings and pipework parts across Australia, with fast dispatch on eligible stocked products. Same day delivery may be available in select metro areas depending on stock, order time, product type and delivery location.
This is especially useful when a small part is holding up a hot water repair, replacement, maintenance job or trade order.
Choosing the Right Hot Water Valve or Fitting
Before ordering, check the specifications of your existing hot water system and the part being replaced. Hot water valves and fittings are not always universal, and many products must match the system type, connection size, pressure rating and intended use.
Check these details before buying:
Valve type
Connection size
kPa pressure rating
Flow direction
Hot and cold water suitability
System brand and model
Storage, continuous flow, heat pump, gas or electric compatibility
Indoor or outdoor location suitability
Material type
Thread size
Australian plumbing approval markings where required
If you are unsure which valve or fitting is suitable, check the product specifications carefully or speak with a licensed plumber before ordering.
Common Hot Water Valves Explained
A tempering valve helps mix hot water with cold water to deliver water at a safer outlet temperature.
A pressure limiting valve helps reduce incoming mains water pressure before it reaches the hot water system.
An expansion control valve helps relieve pressure caused by water expansion during heating.
A PTR valve, also known as a pressure temperature relief valve, is a safety valve used on storage hot water systems to relieve excess pressure and temperature.
An isolation valve allows water supply to be shut off to part of the system.
A non-return valve helps prevent water from flowing backwards through the pipework.
A duo valve combines isolation and non-return functions in one valve body.
Pipework and Hot Water Connections
Hot water pipework and fittings need to suit the system, water pressure, temperature, connection location and pipe material. This collection includes common hot water connection parts used with storage tanks, continuous flow units, heat pumps and replacement hot water components.
Common uses include:
Connecting a hot water system to existing pipework
Replacing worn or leaking fittings
Matching connection sizes during a system changeover
Adding or replacing valves
Connecting copper pipework
Using braided flexible connections where suitable
Replacing unions, adaptors, elbows and tees
Ordering spare parts for future maintenance
Hot Water Fittings for Homes, Rentals and Trade Supply
Hot Water Outlet supplies valves, pipework and fittings for homeowners, property managers, plumbers, builders, maintenance contractors and trade customers across Australia. These parts are often small, but they play an important role in keeping a hot water system working safely and reliably.
This collection is suitable for:
Hot water system replacement parts
Emergency hot water part orders
Routine maintenance supplies
Rental property maintenance
Trade van stock
Renovation plumbing supplies
New hot water system connections
Pressure and temperature control parts
Why Buy Valves, Pipework and Fittings From Hot Water Outlet?
Hot Water Outlet focuses on hot water supply products, making it easier to shop for systems, valves, fittings, spares and accessories in one place.
Shop with Hot Water Outlet for:
Hot water specific valves and fittings
Fast delivery across Australia
Same day delivery in select metro areas on eligible orders
Parts for electric, gas, heat pump, solar and continuous flow systems
Clear product specifications
Common hot water spares and accessories
Trade and homeowner supply options
Hot Water Valve and Fitting Questions
What valve do I need for a hot water system?
The correct valve depends on the system type, pressure rating, water supply pressure, connection layout and the valve’s purpose. Common hot water valves include tempering valves, pressure limiting valves, expansion control valves, PTR valves, isolation valves and non-return valves.
Are all hot water valves the same?
No. Hot water valves can differ by function, connection size, pressure rating, temperature rating, flow direction and system suitability. Always check the product specifications before ordering.
What kPa rating do I need?
The correct kPa rating depends on the hot water system and the valve being replaced. Storage hot water systems often require valves with specific pressure ratings, so the safest option is to match the rating shown on the existing part or the system specification.
Can I use any fitting on hot water pipework?
No. Hot water fittings need to be suitable for hot water temperatures, pressure conditions, pipe material and the system connection point. Check size, material and suitability before ordering.
What is the difference between a tempering valve and a pressure limiting valve?
A tempering valve controls outlet water temperature by mixing hot and cold water. A pressure limiting valve controls incoming water pressure before it reaches the hot water system. They do different jobs and are not interchangeable.
What is the difference between a PTR valve and an expansion control valve?
A PTR valve protects a storage hot water system from excess pressure and temperature. An expansion control valve helps relieve pressure caused by water expansion during heating, usually on the cold water side of the system.
Do you sell hot water pipe connections?
Yes. Hot Water Outlet sells a range of hot water pipe connections, fittings, valves and accessories for different system types and replacement needs.
Can I order valves and fittings with my hot water system?
Yes. You can order compatible valves, pipework parts, connections and fittings with your hot water system where available. This can help reduce delays and make sure the right parts are ready when needed.
Is same day delivery available for valves and fittings?
Same day delivery may be available in select metro areas on eligible products and orders. Availability depends on stock, order time, item size and delivery location.
Order Valves, Pipework and Fittings Online
Shop valves, pipework and fittings online with Hot Water Outlet and get the hot water parts you need delivered fast. From pressure control valves and tempering valves to pipe connections, fittings and spare parts, this collection makes it easier to find the right hot water supply products in one place.
