PU Straight Connector for Pneumatic Tubing | Wisdo Merchants

PU Straight Connector for Joining and Repairing Air Lines

A cut, cracked or damaged air line can stop a whole machine. Replacing the full length of tubing takes time, and running a new line through a crowded machine is awkward. A PU straight connector solves this in seconds. It joins two lengths of PU tubing end to end, so you can extend a line or cut out a damaged section and rejoin it. At Wisdo Merchants, we stock PU straight connectors in 6 mm, 8 mm, 10 mm, 12 mm and 16 mm sizes for factories, packaging lines, workshops and maintenance teams across Nairobi and Kenya.

In a compressed air system, every joint is a possible leak. The straight connector has a push-in port at each end, each with a collet that grips the tube and an O-ring that seals around it. You push the tubes in from both sides to connect, and press the release collars to disconnect. As a result, you get a tight, leak-free joint without tools, glue or clamps.

Features and Benefits of the PU Straight Connector

• Quick repairs. Cut out a damaged section and rejoin the line in seconds.
• Extend air lines. Join two lengths of tubing when a line is too short.
• Five sizes in stock. Choose 6 mm, 8 mm, 10 mm, 12 mm or 16 mm to match your PU tubing.
• Leak-free push-in seal. Internal O-rings seal tightly around both tubes.
• No tools needed. Push in to connect, and press the collar to release.

For maintenance teams, this means faster repairs and less downtime. Meanwhile, owners avoid replacing whole air lines for a single damaged spot.

Technical Specifications

Applications of the PU Straight Connector and How to Use It

• Repairing cut or damaged air lines
• Extending tubing that is too short
• Joining lines through machine frames and panels
• Making air lines easy to disconnect for maintenance
• Packaging, bottling and food processing machines

Repairing a Damaged Air Line

Picture a technician finding a split in the air line feeding a cylinder. First, they shut off and exhaust the air supply. Next, they cut out the damaged section with a sharp tube cutter, making both ends clean and square. After that, they push one end fully into the PU straight connector, then push the other end into the opposite port. Finally, they tug both tubes gently to confirm they’re held, restore the air and check the joint for leaks.

Building a Complete Air Line

Straight connectors work alongside the rest of the range. For neat 90° turns, use our push-in 90° elbows. Join colour-coded lines with our blue air line tubing, or watch for moisture with our transparent air tubing. For threaded valve and cylinder ports, see our push-in air fittings.

Safety and Handling

• Depressurise first. Shut off and exhaust the air before cutting or disconnecting any line.
• Cut tubes square. Angled or crushed ends don’t seal and may pull out.
• Push both tubes in fully. A half-inserted tube can blow out under pressure.
• Match the size. Use the connector that matches your tube’s outside diameter.
• Don’t exceed the rating. Keep within the working pressure of the connector and tubing.

Frequently Asked Questions

Which sizes do you stock?

We stock PU straight connectors for 6 mm, 8 mm, 10 mm, 12 mm and 16 mm tubing. Choose your size from the options on this page.

Can I use it to repair a leaking air line?

Yes. Cut out the damaged section, then join the two clean ends with the straight connector.

How do I remove the tubes?

Exhaust the air first. Then press the release collar towards the connector and pull each tube out.

Can I reuse the connector?

Yes, as long as the collets and O-rings are in good condition and you cut the tube ends fresh.

Do you deliver outside Nairobi?

We offer same-day delivery once your order is confirmed, subject to stock availability. Call or email our sales team to confirm stock and arrange delivery to your site.

Order a PU Straight Connector from Wisdo Merchants

Quick, leak-free joints keep machines running with less downtime. Our PU straight connector comes in five sizes to match your tubing. Furthermore, you can browse our pneumatic fittings for the rest of your air system.

Visit us: Dar es Salaam Road, Off Enterprise Road, Industrial Area, Nairobi
Call: +254 795 938305
Email: sales@wisdomerchants.com