Stainless Steel Straight Push-in Pneumatic Fittings | 4mm to 16mm

Match the fitting size to your tubing's outer diameter (OD), not the inner diameter. For example, a 6mm fitting accepts tubing with a 6mm OD. If you're working with imperial tubing, 1/4" OD is approximately 6.35mm — in most cases a 6mm fitting will work, but always measure your tubing with calipers before ordering. Common conversions: 4mm ≈ 5/32", 8mm ≈ 5/16", 10mm ≈ 3/8", 12mm ≈ 15/32".

Stainless steel push-in fittings of this type typically handle working pressures up to 150 PSI (approximately 10 bar) at standard ambient temperatures. Actual rated pressure may vary by size — contact us to confirm the spec for your specific size before use in high-pressure applications.

Yes. Stainless steel construction provides significantly better corrosion resistance than standard brass or zinc fittings, making these generally suitable for outdoor, humid, or mildly corrosive environments. For highly aggressive chemical exposure or salt spray applications, confirm material compatibility with your specific media before installation.

These are straight push-in fittings — the push-in collet end accepts the tube OD directly with no threading required on the tube side. If your application requires a specific threaded port end (e.g., NPT, BSP, metric), please contact us to confirm compatibility before ordering.

First, depressurize the air line completely. Then press the collet ring inward toward the fitting body while simultaneously pulling the tube straight out. Avoid twisting the tube during removal — this can damage the collet teeth and compromise the seal on reinstallation.

These fittings are generally compatible with semi-rigid polyurethane (PU), nylon (PA), and polyethylene (PE) pneumatic tubing with the matching outer diameter. Soft silicone tubing or braided hose is typically not compatible with push-in collet designs, as the collet requires a firm tube wall to grip securely.

For a single repair or one-off connection, 1Pcs is sufficient. If you're building a small pneumatic circuit with multiple connection points, 2Pcs or 5Pcs offers a better per-unit value and keeps spares on hand for future maintenance — particularly useful for workshop setups where fittings occasionally need replacement.

In most cases, yes. Standard shop compressors typically operate at 90–120 PSI, which falls within the generally rated working pressure range for stainless steel push-in fittings of this type. Ensure your tubing OD matches the selected fitting size and that all connections are fully seated before pressurizing the line.