Pneumatic Push-to-Connect Fittings — Straight, Elbow, Tee, Cross & Threaded Types

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Pneumatic Push-to-Connect Fittings — Straight, Elbow, Tee, Cross & Threaded Types

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Types: Straight (PU)

Size: 4mm

Amount: 1 Pcs

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$6.92 USD

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In stock (500 units), ready to be shipped

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Pneumatic Push-to-Connect Fittings — Fast, Leak-Free Air Line Connections in Every Configuration

Routing compressed air lines through tight spaces, around corners, or into valve ports shouldn't require special tools or hours of work. Whether you're building an automation panel, maintaining a spray booth, or setting up a workshop compressor system, the right pneumatic push-to-connect fittings make the difference between a clean, reliable installation and one that leaks under pressure.

This listing covers a complete family of push-to-connect pneumatic fittings available in nine connector types — Straight (PU), Straight Reducer (PG), Tee Piece (PE), Tee Piece Reducer (PEG), 90° Elbow (PV), Cross Shape 4-Way (PZA), Male Straight (PC), Female Straight (PCF), and Male 90° Elbow (PL). Tube sizes range from 4mm (≈5/32") to 16mm (≈5/8"). Threaded variants are available in M5, 1/8", 1/4", 3/8", and 1/2" BSP. Select 1 Pcs or a 5 Pcs pack depending on your project needs.

These fittings are widely used in pneumatic automation lines, air-powered workshop tools, CNC machine air circuits, spray painting systems, and DIY compressor plumbing — anywhere a secure, tool-free push-to-connect air line fitting is needed for quick assembly or field repair.

🔗 Compatibility: Designed for standard PU, PA (nylon), and PE pneumatic tubing matched to the listed outer diameter. Threaded types use BSP (British Standard Pipe) or M5 metric threads — verify your port thread standard before ordering.

✅ Key Features of These Pneumatic Push-to-Connect Fittings

🔧Tool-Free Push-to-Connect Installation — Insert the tube straight into the fitting until it clicks; no wrenches, clamps, or thread tape required for tube-to-tube connections.
📐Nine Connector Configurations — Straight, reducer, tee, tee reducer, 90° elbow, cross 4-way, male threaded, female threaded, and male elbow types cover virtually every air line routing scenario.
📏Wide Size Range — Tube OD options from 4mm to 16mm, with reducer and threaded variants spanning common BSP sizes (1/8" to 1/2") and M5 metric, making these fittings compatible with most pneumatic push-to-connect air line systems.
🔒Collet-Grip Retention — An internal stainless collet grips the tube OD under pressure, resisting pull-out forces typically encountered in compressed air applications up to 150 PSI.
⚙️Engineering-Grade Plastic Body — The fitting body is constructed from PA (nylon) or equivalent engineering plastic, offering resistance to oils, mild chemicals, and the temperature ranges found in typical workshop and industrial pneumatic environments.
📦Single or 5-Pack Quantities — Order 1 Pcs for a quick repair or 5 Pcs for a full system build-out, with per-unit savings on the multi-pack option.

📐 Technical Specifications — Pneumatic Push-to-Connect Fittings

Fitting Types Available	Straight (PU), Straight Reducer (PG), Tee Piece (PE), Tee Piece Reducer (PEG), 90° Elbow (PV), Cross Shape 4-Way (PZA), Male Straight (PC), Female Straight (PCF), Male 90° Elbow (PL)
Tube OD Range	4mm (≈5/32") — 16mm (≈5/8")
Thread Standards (threaded types)	M5, BSP 1/8", BSP 1/4", BSP 3/8", BSP 1/2"
Body Material	Engineering-grade PA (nylon) — see variant options
Collet / Retention Mechanism	Internal stainless collet ring (push-to-connect, push-to-release)
Typical Working Pressure	Up to 150 PSI (≈10 bar) — confirm for your specific variant
Compatible Tubing	PU (polyurethane), PA (nylon), PE (polyethylene) pneumatic tubing
Connection Method	Push-to-connect (tool-free tube insertion); threaded end uses BSP or M5
Quantity Options	1 Pcs / 5 Pcs per order
Application	Pneumatic automation, air tools, CNC air circuits, compressor plumbing, spray systems

⚠️ Note: Always match the fitting tube OD to your tubing's outer diameter exactly. For threaded types, verify your equipment's port thread standard (BSP vs. NPT) before ordering — BSP and NPT threads are not interchangeable without adapters.

❓ Frequently Asked Questions

How do I choose the right tube size for my pneumatic fitting?

Match the fitting size to your tubing's outer diameter (OD). For example, a 6mm fitting accepts 6mm OD tubing. Common sizes in this listing range from 4mm (≈5/32") to 16mm (≈5/8"). Measure your existing tube OD with calipers before ordering to ensure a secure, leak-free connection.

What thread standards are used on the threaded fittings?

The Male Straight (PC), Female Straight (PCF), and Male 90° Elbow (PL) types use BSP (British Standard Pipe) threads — 1/8", 1/4", 3/8", and 1/2" — as well as M5 metric threads where listed. BSP threads are generally compatible with most pneumatic equipment sold in the US and internationally, but are not the same as NPT (National Pipe Taper). If your equipment uses NPT ports, an adapter will typically be required.

What working pressure can these fittings handle?

Push-to-connect pneumatic fittings of this type typically support working pressures up to 150 PSI (≈10 bar) when used with compatible polyurethane or nylon tubing. Actual rated pressure may vary by size and type. Confirm the rated pressure for your specific application before use, and never exceed the rated pressure of the weakest component in your air circuit.

Can I use these fittings outdoors or in humid environments?

The fittings are generally made from engineering-grade plastic (PA/nylon body) with stainless or nickel-plated internal collets. They are suitable for indoor pneumatic systems and light-duty outdoor use in sheltered conditions. For prolonged outdoor exposure, high-humidity, or chemically aggressive environments, contact us to confirm material suitability for your specific application.

Are these fittings compatible with polyurethane (PU) and nylon tubing?

Yes. These push-to-connect fittings are designed to work with standard PU (polyurethane), PA (nylon), and PE (polyethylene) pneumatic tubing of the matching outer diameter. They are not intended for hydraulic or liquid media under high pressure. For water or fluid applications, contact us to confirm compatibility.

Which fitting type should I choose for my application?

Use this guide as a starting point:

Straight (PU): Inline tube-to-tube connection, same diameter.
Straight Reducer (PG): Inline connection between two different tube ODs.
Tee Piece (PE): Split one air line into two branches, same diameter.
Tee Piece Reducer (PEG): T-branch with a size change on the center port.
90° Elbow (PV): Right-angle tube-to-tube turn, same diameter.
Cross Shape 4-Way (PZA): Four-way air distribution from a single point.
Male Straight (PC) / Female Straight (PCF): Connect tubing to a threaded port on a valve, cylinder, or manifold.
Male 90° Elbow (PL): Right-angle connection from a threaded port to a tube.

How do I release the tube from a push-to-connect fitting?

Depressurize the line completely before disconnecting. Then push the collet ring (the outer ring at the fitting mouth) inward toward the fitting body while simultaneously pulling the tube straight out. Do not twist or yank the tube, as this can damage the collet teeth and prevent a reliable reconnection.

🛒 Select your type, size, and quantity above, then add to cart — ships from our US warehouse.

Pneumatic Push-to-Connect Fittings — Straight, Elbow, Tee, Cross & Threaded Types

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Description

Pneumatic Push-to-Connect Fittings — Fast, Leak-Free Air Line Connections in Every Configuration

✅ Key Features of These Pneumatic Push-to-Connect Fittings

📐 Technical Specifications — Pneumatic Push-to-Connect Fittings

❓ Frequently Asked Questions

Pneumatic Push-to-Connect Fittings — Straight, Elbow, Tee, Cross & Threaded Types

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