Pneumatic Y Union Splitter Push In Fitting — Split One Air Line Into Three, Instantly
When your pneumatic setup demands a clean, reliable air line split — whether you're running multiple actuators, cylinders, or tools from a single compressor outlet — a loose hose or improvised junction creates pressure drops and leaks that slow your work. These push-in Y union splitters are designed for DIYers, workshop technicians, and automation builders who need a fast, tool-free 3-way air connection they can trust.
Each fitting is a single-piece Y-body push-in connector with three equal ports. Available in five tube outer diameter sizes: 4mm (≈5/32"), 6mm (≈1/4"), 8mm (≈5/16"), 10mm (≈3/8"), and 12mm (≈1/2"). Sold in quantities of 1, 2, or 5 pieces per order. The body is constructed from engineering-grade plastic with an internal stainless-style collet and elastomeric O-ring seal for a secure, leak-resistant grip on standard pneumatic tubing.
Typical use cases include splitting a single compressor air supply to two pneumatic cylinders, connecting multiple push-in air hose lines in a 3-way manifold configuration, and building compact pneumatic control circuits for DIY automation, woodworking, or light industrial applications where a push-to-connect air fitting simplifies routing.
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Compatibility: Fits standard pneumatic tubing with outer diameters of 4mm, 6mm, 8mm, 10mm, or 12mm — including PU, PA (nylon), and PE hose. Select your tube OD from the Size option above. Not compatible with imperial tubing sizes unless OD matches.
✅ Key Features of These Pneumatic Y Union Push-In Splitter Fittings
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🔧Tool-Free Push-In Installation — Insert your air hose tube straight into any port until it clicks; the internal collet grips automatically for a secure push-to-connect air fitting without wrenches or thread tape.
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🔄True 3-Way Y Split — Divides one incoming air line into two outlets in a symmetrical Y configuration, maintaining balanced flow distribution across all three ports of the pneumatic 3-way connector.
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📈Five Tube Sizes Available — Covers the most common pneumatic hose outer diameters from 4mm to 12mm (≈5/32" to ≈1/2"), making it straightforward to match your existing air hose tube size.
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🔒Internal Collet & O-Ring Seal — The stainless-style collet teeth grip the tube wall while the elastomeric O-ring creates a leak-resistant seal, reducing pressure loss in your pneumatic circuit.
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⚡Quick-Release Design — To disconnect, simply press the release collar inward while pulling the tube — no cutting, no damage to the tube end, allowing fast reconfiguration of your air hose splitter setup.
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🏭Compact Y-Body Form Factor — The low-profile body fits into tight panel spaces and junction boxes, ideal for compact pneumatic control circuits in DIY automation and workshop air distribution systems.
📐 Technical Specifications — Pneumatic Y Union Push-In Fitting
| Fitting Type |
Push-In Y Union Splitter (3-Way) |
| Available Tube Sizes (OD) |
4mm (≈5/32"), 6mm (≈1/4"), 8mm (≈5/16"), 10mm (≈3/8"), 12mm (≈1/2") |
| Body Material |
Engineering-grade plastic (typically PA or POM); see variant options |
| Collet / Grip Material |
Stainless-style metal collet (contact us to confirm exact alloy) |
| Seal Type |
Elastomeric O-ring |
| Compatible Tubing |
PU (polyurethane), PA (nylon), PE (polyethylene) pneumatic hose |
| Working Pressure |
Typically up to 150 PSI (≈10 bar); contact us to confirm |
| Working Temperature |
Generally 0°C to 60°C (32°F to 140°F); contact us to confirm |
| Thread on Body |
None — all ports are push-in style |
| Quantity per Order |
1 Pcs, 2 Pcs, or 5 Pcs (select above) |
| SKU Series |
FXL373 |
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Note: Always verify your tube's outer diameter (OD) before ordering. Tube OD and inner diameter (ID) differ — this fitting connects by tube OD. If unsure, measure with calipers or contact us before purchase.
❓ Frequently Asked Questions
How do I choose the right tube size for my pneumatic Y splitter?
Match the fitting size to your air hose outer diameter (OD). For example: PY-04 fits 4mm OD tubing (≈5/32"), PY-06 fits 6mm OD (≈1/4"), PY-08 fits 8mm OD (≈5/16"), PY-10 fits 10mm OD (≈3/8"), and PY-12 fits 12mm OD (≈1/2"). Always measure your tube's outer diameter with calipers before ordering — do not rely on the tube's inner diameter or nominal size alone.
What is the maximum working pressure these fittings can handle?
Pneumatic push-in Y fittings of this type are generally rated for working pressures up to approximately 150 PSI (≈10 bar). For high-demand or safety-critical systems, please contact us to confirm the rated pressure for your specific size before use.
Can these Y connectors be used outdoors or in humid environments?
These fittings are typically constructed from engineering-grade plastic with internal metal collets that generally offer good resistance to moisture and mild corrosion. In most cases they perform well in workshop and light industrial environments. For prolonged outdoor exposure or chemically aggressive conditions, contact us to confirm material compatibility before installation.
Are these push-in fittings compatible with polyurethane (PU) and nylon (PA) tubing?
Yes. Push-in Y union splitters of this style are generally compatible with standard pneumatic tubing materials including PU (polyurethane), PA (nylon), and PE (polyethylene) hoses, provided the tube OD matches the selected fitting size. Confirm compatibility with silicone or specialty tubing before use, as softer materials may not grip as securely in the collet.
Do I need any tools or thread tape to install these fittings?
No tools or thread tape are required. Simply push the tube straight into the fitting port until it seats fully — the internal collet grips and the O-ring seals automatically. To release, press the release collar inward while pulling the tube out. Ensure the tube end is cut cleanly and squarely for the best seal.
How many pieces do I need to order, and can I mix sizes in one order?
Each listing is sold by size and quantity — choose 1, 2, or 5 pieces of a single size per variant. Sizes cannot be mixed within a single variant selection. For bulk orders or mixed-size requirements, contact us directly and we can assist with a custom order.
What thread standard do these Y fittings use on the body ports?
These are push-in style fittings with no external thread on the body — all three ports accept push-in tube connections only. There is no NPT or BSP thread on this fitting. If you need a threaded-to-tube adapter (e.g., male NPT to push-in), please browse our other pneumatic fitting listings or contact us.
🛒 Select your size and quantity above, then add to cart — ships from our US warehouse.
