Stainless Steel Pneumatic Straight Push-to-Connect Hose Fitting | Inline Air Tube Connector

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Stainless Steel Pneumatic Straight Push-to-Connect Hose Fitting | Inline Air Tube Connector

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Size: 4mm

Amount (Pcs): 1 Pcs

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$4.69 USD

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Stainless Steel Straight Push-to-Connect Hose Fitting — Reliable Inline Air Line Connections

When an air line joint fails mid-project — leaking pressure, slowing your compressor tools, or forcing an unplanned shutdown — the culprit is almost always a low-grade plastic fitting that couldn't hold up. DIYers, workshop owners, and light industrial users who run pneumatic systems daily need a connector that installs in seconds and stays sealed under continuous use.

Each unit is a straight inline push-fit connector machined from stainless steel, designed to join two pneumatic tubes end-to-end without threading or adhesives. Available in seven tube outer diameter sizes — 4mm (≈5/32"), 6mm (≈15/64"), 8mm (≈5/16"), 10mm (≈3/8"), 12mm (≈15/32"), 14mm (≈35/64"), and 16mm (≈5/8") — and sold in quantities of 1, 2, or 5 pieces per order.

Typical applications include extending or repairing compressed air lines in home workshops, connecting tubing runs in pneumatic automation rigs, and replacing corroded brass fittings in outdoor or humid-environment installations where a stainless steel push-to-connect air fitting outperforms standard materials.

ℹ️ Compatibility: Designed for standard pneumatic tubing (PU, PA, PE) with matching outer diameters. Select the size equal to your tube's OD. Not intended for hydraulic or high-temperature steam lines.

✅ Key Features of These Stainless Steel Push-Fit Pneumatic Connectors

🔩Stainless Steel Body — Resists rust, oxidation, and mild chemical exposure, making these inline air tube connectors suitable for humid workshops and outdoor compressed air runs.
⚡Tool-Free Push-to-Connect Installation — Insert the tube until it clicks; the internal collet grips the OD automatically. No wrenches, thread tape, or sealant compounds needed.
↔️Straight Inline Design — Joins two tube ends in a direct, low-profile run — ideal for extending air lines or splicing a cut tube without adding bends or elbows.
📐Seven Size Options (4mm–16mm) — Covers the most common pneumatic tubing ODs used in US workshops, from small-bore 4mm control lines up to 16mm main supply runs.
🔄Releasable Collet Mechanism — Tube can be removed and reinserted by pressing the collet ring, allowing repositioning or reuse during system layout changes.
📦Flexible Quantity Options — Order 1, 2, or 5 pieces to match your project scope — whether you need a single repair fitting or a small stock for a multi-drop air distribution system.

📐 Technical Specifications — Straight Push-Fit Pneumatic Hose Connector

Connector Type	Straight Inline Push-to-Connect (Push Fit)
Body Material	Stainless Steel
Compatible Tube OD Sizes	4mm (≈5/32"), 6mm (≈15/64"), 8mm (≈5/16"), 10mm (≈3/8"), 12mm (≈15/32"), 14mm (≈35/64"), 16mm (≈5/8")
Compatible Tube Materials	PU (Polyurethane), PA (Nylon), PE (Polyethylene) — See variant options
Working Pressure	Typically up to 150 PSI (≈10 bar) — Contact us to confirm for your application
Working Temperature	See variant options / Contact us to confirm
Connection Method	Push-to-connect collet; tool-free tube insertion and release
Finish	Natural Stainless Steel (uncoated)
Available Quantities	1 Pcs, 2 Pcs, 5 Pcs
Application	Pneumatic air lines, compressed air systems, automation tubing

⚠️ Note: Always verify your tube's outer diameter with calipers before ordering. Tube OD must match the selected connector size exactly for a leak-free seal.

❓ Frequently Asked Questions

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

Match the connector size to your tubing's outer diameter (OD). For example, a 6mm connector fits tubing with a 6mm OD. Sizes available range from 4mm (≈5/32") to 16mm (≈5/8"). When in doubt, measure your existing tube OD with calipers before ordering.

What pressure rating do these push-fit connectors typically handle?

Stainless steel push-to-connect fittings of this type generally support working pressures up to approximately 150 PSI (≈10 bar), though the exact rating depends on tube material and wall thickness. Confirm your system's operating pressure before installation.

Can these connectors be used outdoors or in humid environments?

Yes. The stainless steel body provides strong resistance to rust and corrosion, making these fittings suitable for outdoor, humid, or mildly corrosive environments. For highly aggressive chemical exposure, please contact us to confirm compatibility.

What tube types are compatible with these push-fit connectors?

These inline straight connectors are generally compatible with standard pneumatic tubing including polyurethane (PU), nylon (PA), and polyethylene (PE) tubing with matching outer diameters. Ensure the tube OD matches the selected connector size for a secure, leak-free connection.

Do I need tools or thread tape to install these fittings?

No tools are required for the tube connection — simply push the tube into the fitting until it clicks into place. The inline straight body connects two tube ends directly without threading into a port, so no thread tape is needed for the tube side.

How do I release the tube from a push-fit connector?

To release the tube, depressurize the line first, then press the collet ring (the outer ring at the tube entry) inward while pulling the tube out. This releases the internal grab ring and allows the tube to slide free without damage.

Which size should I buy if I'm not sure of my tube OD?

Use a digital caliper to measure the outer diameter of your existing tube. Common pneumatic tube sizes in the US include 1/4" (≈6.35mm), 5/16" (≈8mm), and 3/8" (≈10mm). Choose the metric size closest to your measurement. If you're between sizes, contact us before ordering.

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

Stainless Steel Pneumatic Straight Push-to-Connect Hose Fitting | Inline Air Tube Connector

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Beschreibung

Stainless Steel Straight Push-to-Connect Hose Fitting — Reliable Inline Air Line Connections

✅ Key Features of These Stainless Steel Push-Fit Pneumatic Connectors

📐 Technical Specifications — Straight Push-Fit Pneumatic Hose Connector

❓ Frequently Asked Questions

Stainless Steel Pneumatic Straight Push-to-Connect Hose Fitting | Inline Air Tube Connector

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