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Push-in Fittings

Shop The Hosemaster's range of pneumatic push-in fittings, the fastest way to build and reconfigure compressed air circuits without tools or threads. The collet ring grips the tube on insertion and releases with a press of the sleeve, holding a leak-free seal under pressure. The range covers straight connectors, elbows, tees, crosses, and reducers in metric sizes from 4mm to 16mm OD, with BSP threaded male and female ports for connection to valves, regulators, and tools. Free delivery over £200 to England and Wales.

  • REF #2230

    Male Stud - BSPT

    Male Stud - BSPT

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  • REF #2235

    Straight Connector

    Straight Connector

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  • REF #2238

    90° Male Stud Elbow

    90° Male Stud Elbow

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  • REF #2246

    Equal Tee

    Equal Tee

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  • REF #2271

    Manual Push-In Shut-Off Valve (tube to tube)

    Manual Push-In Shut-Off Valve (tube to tube)

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  • REF #2232

    Male Stud - BSPP Thread

    Male Stud - BSPP Thread

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  • REF #2273

    Tube Reducer

    Tube Reducer

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  • REF #2233

    Female Stud

    Female Stud

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  • REF #2243

    Equal Elbow

    Equal Elbow

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  • REF #2256

    Blanking Plug

    Blanking Plug

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  • REF #2236

    Reducing Connector

    Reducing Connector

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  • Emergency Push-in Fittings Selection Box / Kit

    Emergency Push-in Fittings Selection Box / Kit

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  • REF #2253

    Tube Reducer Connector

    Tube Reducer Connector

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  • REF #2260

    Speed Flow Controller Elbow

    Speed Flow Controller Elbow

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  • REF #2250

    Equal 'Y'

    Equal 'Y'

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  • REF #2270

    Tube x Tube check valve for air

    Tube x Tube check valve for air

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How to choose pneumatic push-in fittings

Push-in fittings are the standard connection method for pneumatic tubing in most workshop and industrial applications, and it is easy to see why. A stainless steel collet ring bites into the tube OD on insertion, tightening its grip as the line comes under pressure. To release the tube, press the outer sleeve inward to disengage the collet and pull the tube free. The whole operation takes seconds and leaves the fitting and the tube undamaged and ready to reuse.

Getting the right fitting starts with the tube OD. Metric sizes in common use are 4mm, 6mm, 8mm, 10mm, 12mm, and 16mm. The collet must match the tube OD exactly, a 6mm fitting will not seal on 8mm tube, and forcing it will damage the collet. If you are working with imperial tube, measure the OD in millimetres rather than assuming the nominal size is the right dimension.

Thread type matters at every connection point. BSP (British Standard Pipe) is the standard in UK pneumatic systems. Male BSP fittings thread into female ports on valves, regulators, and tools. Female BSP fittings accept male stems on manifolds and cylinders. BSPP (parallel) and BSPT (tapered) are not interchangeable, they use different sealing methods, so confirm which your equipment uses before ordering.

The range covers most circuit-building scenarios. Straight connectors join two lengths of tubing in line. Elbows change direction at 90 degrees. Tees allow a branch to be added to a run. Crosses provide four-way junctions. Reducers connect tubes of different OD. End caps and blanking plugs terminate open ports. For a clean, leak-free seal, always cut tubing square with a proper tube cutter rather than a knife or saw, a ragged edge prevents the collet from seating correctly.

Need help specifying a fitting? Contact our team or call 01282 604002.

Frequently Asked Questions

How do push-in fittings work?

Push-in fittings use a stainless steel collet ring that grips the tube OD on insertion. When the air line is under pressure, the collet bites harder into the tube, strengthening the seal. To release the tube, press the outer sleeve inward to disengage the collet, then pull the tube free. The fitting can be reused repeatedly provided the tube end is in good condition.

What sizes do push-in fittings come in?

This range covers metric tube OD sizes from 4mm to 16mm. Common sizes for general pneumatic work are 6mm and 8mm. Larger sizes, 10mm, 12mm, and 16mm, are used where higher flow rates are needed. The fitting size must match the tube OD precisely; check the tube with a vernier or micrometre if you are unsure.

What is the difference between push-in and compression fittings?

Push-in fittings grip the tube with a collet ring and release with a sleeve push, making them fast and reusable. Compression fittings use a ferrule that deforms under tightening and cannot be removed without cutting away the tube end. For pneumatic applications where connections may need to be changed, push-in fittings are the practical choice. Compression fittings are more common in hydraulic and high-pressure gas systems.

Can push-in fittings be reused?

Yes. Push-in fittings are designed for repeated connection and disconnection. The collet and seal remain functional across multiple uses, provided the tube end is cut cleanly and squarely each time. Damaged or crushed tube ends prevent a good seal and should be cut back before reinserting. If a fitting consistently fails to hold pressure, inspect the collet for damage.

What thread type do pneumatic push-in fittings use?

BSP (British Standard Pipe) is the standard thread form in UK pneumatic systems. BSPP (parallel) threads require a bonded seal or O-ring to seal the connection. BSPT (tapered) threads seal on the thread itself, typically with PTFE tape. The two are not interchangeable; check the port type on your valves, tools, and regulators before selecting fittings.

What shapes are available for push-in fittings?

The range includes straight connectors, 90-degree elbows, tees, crosses, and reducers for metric sizes. BSP male and female ports are available in all configurations. Reducers allow tubes of different diameters to be joined in the same circuit. End caps and blanking plugs terminate open ports.

Do you sell pneumatic push-in fittings near me?

The Hosemaster delivers push-in fittings to all UK mainland addresses. Orders over £200 to England and Wales qualify for free delivery, with 1-2 day delivery available and same-day dispatch on most in-stock lines. If you need a specific size or configuration, call 01282 604002 and our team will help.