PneuPart · QUICK-CONNECT-FITTINGS-SERIES
Pneumatic Quick Connect Couplings & Push-In Fittings Series
Wholesale quick release pneumatic fittings, push-in tube connectors, and quick connect couplings for air hoses (OD 4mm-16mm). Pressure 0-1.0 MPa. Factory direct stock & custom OEM support.

Confirm specifications, samples and packaging quantities directly with engineering support.
Quick Release Pneumatic Fittings Specification Matrix
| Series Type | Body Shape | Applicable Tube OD | Thread Size (Metric/BSPT/NPT) | Operating Pressure | Working Medium |
|---|---|---|---|---|---|
| PC / POC | Male Straight Fitting | 4mm, 6mm, 8mm, 10mm, 12mm, 16mm | M5, 1/8", 1/4", 3/8", 1/2" | 0 to 1.0 MPa (0 - 150 psi) | Compressed Air / Vacuum |
| PL / PLL | Male Elbow / Extended Elbow | 4mm, 6mm, 8mm, 10mm, 12mm | M5, 1/8", 1/4", 3/8", 1/2" | 0 to 1.0 MPa (0 - 150 psi) | Compressed Air / Vacuum |
| PU / PG | Union Straight / Reducer | 4mm to 16mm (Reducer 8-6, 10-8, etc.) | Tube to Tube Quick Joint | 0 to 1.0 MPa (0 - 150 psi) | Compressed Air |
| PV / PE / PY | Union Elbow, Tee, Y-Branch | 4mm, 6mm, 8mm, 10mm, 12mm | All-directional Quick Coupler | 0 to 1.0 MPa (0 - 150 psi) | Compressed Air |
| SL / JSC | Speed Controller / Flow Regulator | 4mm, 6mm, 8mm, 10mm, 12mm | M5, 1/8", 1/4", 3/8", 1/2" | 0.1 to 1.0 MPa | Compressed Air |
* Compatible with Polyurethane (PU), Nylon, and PE tubing. Stainless steel lock claws ensure zero-leak air hose quick release coupling.
Find your product type

Connect a pneumatic tube to a female threaded port in a straight line. Select tube outside diameter and the actual port thread separately.
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Turn a tube connection through 90° where a straight fitting would use too much space. Check elbow clearance and thread sealing before installation.
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Join two tubes of the same outside diameter in a straight run. This tube-to-tube union has no pipe-thread selection.
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Route two equal-size tubes around a 90° corner. Check insertion clearance on both sides and avoid forcing a tight bend beside the collar.
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Split or join three equal-size pneumatic tube lines in a T layout. A tee distributes flow; it does not isolate branches or prevent reverse flow.
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Branch one tube line into two in a Y layout. Compare the branch direction and available space with a tee before choosing the body shape.
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Adjust pneumatic cylinder speed with a needle restriction and a one-way bypass. Choose meter-out or meter-in by the circuit; a speed controller is not a pressure regulator.
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Join tubes with different outside diameters. Specify both ends in the request so a reducer is not confused with an equal-size union.
Sizes & enquiry →Selection guide
- • Choose the body shape first: straight, elbow, tee, Y, reducer or speed controller.
- • Measure tube outside diameter. A pipe-thread code is separate from the tube size.
- • For R/PT, G, NPT or metric ports, send the actual thread marking or a close-up photo.
- • Cut tubing square, remove burrs, push fully home and check retention. Depressurise before removal.
Typical references for selection, not a test certificate for every configuration. Tell us any special pressure, temperature, medium or certification requirement so customer service can confirm a suitable option.
Supply options
Send size, colour, length, packaging and quantity. Special configurations, samples, current availability and lead time are confirmed in the quotation.