► Hardie Hose | Push-In Run Tees

Add a Branch Without Interrupting the Main Air Line Need another pneumatic connection without sending the main tube route in a different direction? Hardie Hose | Push-In Run Tees provide a straight-through push-in tube path with a threaded branch, giving workshops a compact way to connect suitable valves, controls &...

Add a Branch Without Interrupting the Main Air Line

Need another pneumatic connection without sending the main tube route in a different direction? Hardie Hose | Push-In Run Tees provide a straight-through push-in tube path with a threaded branch, giving workshops a compact way to connect suitable valves, controls & other pneumatic components along an existing air line.

The range covers metric & imperial tube configurations with BSP threaded branches plus selected M5 options. That combination suits maintenance, machinery modifications, automation equipment & new compressed-air installations where both the tube dimension & threaded connection need to match.

A run tee solves a very particular layout problem: keep the main pneumatic line moving forward while taking another connection exactly where it's needed.

Connections Around the Main Run

► Hardie Hose | Fittings & Accessories — broader Hardie Hose connection components
► Hardie Hose | Push In Fittings — dedicated push-in pneumatic fittings
► Air Hoses & Reels — flexible compressed-air delivery & hose management

What Are Hardie Hose | Push-In Run Tees?

Follow the main tube with your eye & the fitting makes sense immediately. Two push-in connections maintain the run while the threaded connection creates another point for compatible pneumatic equipment.

That configuration separates a run tee from a conventional three-way tube union.

Current Hardie Hose options include combinations across 4mm, 6mm, 8mm, 10mm & 12mm metric tubing, together with imperial configurations including 1/4", 3/8" & 1/2". Threaded branches span various BSP sizes, with M5 options available in selected metric configurations.

A few examples show why both specifications matter:

► 4mm x M5
► 4mm x 1/8" BSP
► 6mm x 1/4" BSP
► 6mm x 3/8" BSP
► 8mm (5/16") x 1/8" BSP
► 8mm (5/16") x 3/8" BSP
► 10mm x 1/2" BSP
► 12mm x 1/4" BSP
► 1/2" x 1/2" BSP

Knowing the tube size gets you halfway there. Knowing the branch thread completes the identification.

Why Choose Hardie Hose | Push-In Run Tees?

Sometimes the main air line is already exactly where it belongs. It's the new connection that needs somewhere to go.

That's the situation where a run tee becomes particularly useful.

Rather than terminating the tube route at a threaded component, the two push-in connections allow suitable tubing to continue through the fitting. The threaded branch can then connect to the compatible component positioned off that run.

Space can make that distinction important. Machinery frames, control areas & automation assemblies don't always leave room for multiple adaptors or unnecessarily complicated tube routing.

The run tee configuration can keep the connection arrangement more direct where the application suits it.

Thread identification remains critical. A fitting that accepts the correct pneumatic tube isn't automatically correct if the branch thread doesn't match the adjoining component.

Where the wider system also requires pressure adjustment or monitoring, Pressure Regulators & Gauges provides related compressed-air control components.

Common Applications

Picture an automated machine with a pneumatic tube already running neatly along its frame. A new valve needs air midway along that route, but the existing line must continue towards another actuator downstream.

A correctly selected run tee can provide the threaded connection while maintaining the main tube route.

Adding Pneumatic Valves

A valve installed beside an existing air line may require a threaded connection without terminating the tubing supplying equipment further along the circuit.

Extending Automation Equipment

Machine upgrades rarely happen on an empty drawing board. New pneumatic functions often have to fit around existing tubing, sensors, guards, actuators & electrical equipment.

A compact branch arrangement can help when another compatible pneumatic component is introduced to an established machine.

Modifying Production Machinery

Adding a cylinder, control device or another air-operated function can change how the existing circuit needs to branch.

Before modifying the line, identify what the straight-through section already supplies.

Replacing Damaged Run Tees

Breakdown replacement becomes easier when the old fitting is documented before removal.

Record the tube dimension, branch thread & orientation while everything is still connected.

Workshop Equipment Installations

Air-operated workshop machinery can require branching connections where the main tube route serves more than one point.

Agricultural & Service Equipment

Compact pneumatic installations on working equipment may benefit from branch configurations that minimise unnecessary tube redirection.

For more context around where pneumatic systems fit into workshop operations, read Air Tools vs Electric: The Real Cost of Ownership for Australian Workshops.

Product Selection Guide

Three ports are visible, but they don't all perform the same job. Read a run tee according to the function of each connection rather than treating it as a generic three-way fitting.

Start With the Tube

Identify the pneumatic tubing passing straight through the fitting.

The collection includes metric & imperial options, so avoid choosing from visual similarity alone.

Check the actual tube specification.

Then Identify the Thread

Now look at what attaches to the branch.

The Hardie Hose range includes various BSP threaded options plus selected M5 configurations. The correct tube dimension paired with the wrong branch thread still produces the wrong fitting.

Look at the Installed Orientation

Where will the threaded component sit once everything is assembled?

Consider:

► Machinery frames
► Guards
► Adjacent valves
► Electrical enclosures
► Existing tube routes
► Access for future maintenance

A connection can be technically correct & still be awkwardly positioned.

Trace the Straight-Through Line

Don't concentrate solely on the new branch.

Establish what the main run supplies downstream before modifying an existing circuit. The branch becomes part of that system rather than an isolated addition.

Confirm the Complete Application

Tube dimension & thread identify the connection configuration, but installation suitability also depends on the individual component & pneumatic system requirements.

Check the relevant specifications before putting the circuit back into service.

Run Tee, Y Piece or Another Connection?

Similar-looking fittings can solve very different routing problems.

Connection Requirement	Component to Consider	What Defines the Choice?
Tube continues straight with a threaded branch	Push-In Run Tee	Tube size & branch thread
Tube divides into multiple push-in routes	Y piece / union	Tube configuration
Tube needs to change size	Tube reducer	Both tube dimensions
Tube connects to a threaded port	Push-in male connector	Tube size & thread
Push-in point needs temporary protection	Push-In Cap	Connection size
System pressure needs adjustment	Pressure regulator	Application requirements

Don't choose a tee because it has three openings. Choose it because those three openings match the way the circuit needs to connect.

Expert Tips

Mark the main run before pulling the tubes.
A simple identifier on the incoming & outgoing lines makes it easier to distinguish the straight-through route from the branch during reassembly.

Record the fitting as a pair of specifications.
“8mm tee” isn't enough when several threaded branch options may exist. Note the tube dimension & thread together.

Take two photos instead of one.
Use a close-up to capture the fitting & a wider image to record where the branch sits within the machine.

Check clearance from the branch side first.
The straight tube may have plenty of room while the threaded component runs directly into a frame, guard or neighbouring fitting.

Don't automatically copy an old installation mistake.
If a replacement fitting is difficult to access, use the maintenance opportunity to assess whether the existing arrangement is appropriate for the equipment.

Inspect the tubing while it's disconnected.
The fitting may be the reason for the repair, but the tube ends & surrounding connections are already exposed & worth checking.

Label recurring combinations in workshop stock.
Recording commonly used tube/thread pairings can make identification faster when the same machinery requires attention again.

Know what lives downstream.
Before introducing another branch, understand what the continuing line already supplies.

For broader workshop preparation ahead of maintenance-heavy periods, see Spring Jobsite Prep Getting Your Gear Ready.

Support the Branch From Upstream

The run tee may be where the air divides, but its performance depends on what arrives there.

Where moisture management forms part of the compressed-air installation, Air Filters & Moisture Traps provides related air-treatment components.

For equipment that needs convenient connection & disconnection from suitable air supplies, Quick Couplers & Connectors covers another part of the connection chain.

At the beginning of the system, Air Compressors provides compressed-air supply options for workshop & industrial applications.

Why Buy From Industrial Shed?

When a machine is down, “almost the right tee” isn't particularly useful. Industrial Shed supplies Hardie Hose pneumatic fittings alongside the hoses, regulators, air-treatment equipment, compressors & workshop hardware used around compressed-air installations.

For businesses managing frequently used fittings & other workshop consumables, on -site & workshop Services provides support for ongoing restocking requirements.

When the required tube & thread combination has already been identified, Same day dispatch provides current shipping & delivery information.

Give the Branch a Job Without Losing the Main Run

The best place for a branch isn't simply where there's room for a tee. It's where the pneumatic circuit needs another connection while the main line continues towards the equipment beyond it.

✔ Identify the straight-through tube size
✔ Match the threaded branch correctly
✔ Check the installed orientation
✔ Leave practical access for future maintenance
✔ Trace what the continuing line supplies
✔ Record the final configuration after modification

Choose the Hardie Hose | Push-In Run Tee that matches the tube, thread & layout already doing the work.

Frequently Asked Questions

Why does a Push-In Run Tee have a threaded branch?

The push-in connections maintain the pneumatic tube run while the threaded branch provides a connection point for compatible equipment.

My tube is 8mm. Why isn't that enough information to order the tee?

Because different thread configurations can be paired with the same tube size. Confirm the required BSP branch as well.

What's the difference between a run tee & a three-way push-in union?

A run tee combines the straight-through push-in tube route with a threaded branch. A three-way tube union uses a different connection arrangement.

Can the branch face whichever direction suits the installation?

Check the fitting design, connection arrangement & surrounding clearance. Plan its installed orientation before final assembly.

Why should I trace the downstream line before adding a tee?

The straight-through section continues supplying the existing circuit. Knowing what's downstream helps you understand the complete system being modified.

Can BSP & M5 run tees be treated as interchangeable if they look similar?

No. Thread type & size must match the compatible component. Appearance isn't a reliable way to identify a threaded connection.

Brands

Hardie Hose

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► Hardie Hose | Push-In Run Tees