Male Connector / Coupler for PU Polyurethane Ducting

Name: Male Connector / Coupler for PU Polyurethane Ducting
Brand: Auto Silicone Hoses
SKU: PUDJ051K-ASH
Price: 6.95 GBP
Availability: InStock

PUDJ051K-ASH

£6.95

Delivery/Collection

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Address

Silicone Hose UK

HolmeBank Business Park, Station Road
Unit 5
Mirfield WF14 8NA
United Kingdom

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Opening hours

Monday	07:00 – 19:00
Tuesday	07:00 – 19:00
Wednesday	07:00 – 18:00
Thursday	07:00 – 18:00
Friday	07:00 – 17:00
Saturday	07:00 – 13:00
Sunday	Closed

Bank holidays may affect our opening hours and delivery times.

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Male Connector / Coupler for PU Polyurethane Ducting is a lightweight, durable fitting designed to join flexible ducting to ducting runs or equipment in ventilation, dust extraction, and general air-handling systems. Manufactured from high-quality Acrylonitrile Butadiene Styrene (ABS), the connector offers excellent impact resistance, moisture stability, and long service life outdoors or indoors. The male spigot profile slides inside PU ducting and secures with hose clamps to create a tight, leak-resistant joint without adhesives.

Key Features:

Material: Acrylonitrile Butadiene Styrene (ABS) for durability and impact resistance.
Design: Male inline connector for PU polyurethane ducting; clamp-secured spigot for reliable sealing.
Wall Thickness: 2 mm for strength and reliability.
Surface Finish: Matte finish for a neat, professional appearance and easy handling.
Operating Temperature: -20°C to +105°C for versatile use.
Applications: Ideal for ventilation ducting, dust and fume extraction, and general air transfer connections.

The connector’s male spigot provides positive engagement inside flexible PU ducting, enabling a secure clamp joint that resists leaks and slippage under airflow or light vacuum. ABS construction ensures resistance to cracking, UV exposure, and environmental wear, making it suitable for continuous duty in workshops and plant rooms as well as domestic installations. Compact and straightforward to fit, the coupler offers a cost-effective, dependable solution for extending runs, connecting to machinery, or carrying out quick on-site repairs.

Applications include workshop dust extraction, HVAC connections, fume and light material transfer, agricultural ventilation, and general-purpose ducting maintenance. Male Connectors / Couplers for PU Polyurethane Ducting are widely used in domestic, agricultural, and light industrial settings where a robust, easy-to-install plastic fitting is required.

Size Guide

Outside Diametermm
50
65
80
100
125
150
200

Measurements are nominal and may vary slightly.

How to measure OD

Measure across the outside

Rigid pipe, tube and joiners are sized by the outer wall, because that is the surface a hose seals against. The bore and wall thickness follow from it — they are not the ordering size.

Use vernier calipers

Set the outer jaws across the widest point. A tape measure round a curve reads low by a millimetre or two — enough to buy the wrong size.

Take three readings, keep the largest

Rotate 60° between each. If they disagree the tube is oval; size to the biggest figure so the hose still clamps down evenly.

Match the hose to this OD

The hose sleeves over the tube, so the hose you want is the one whose internal diameter equals this outside diameter. A 51 mm tube takes a 51 mm ID hose.

Order by OD, always. Tube, rigid pipe and joiners are listed by outside diameter — the surface the hose clamps onto. Pair one with a hose of the same ID. On reducers, quote both ends, largest first.

Construction

Material

Acrylonitrile Butadiene Styrene (ABS)

Durability and impact resistance

Design

Male inline connector

PU polyurethane ducting; clamp-secured spigot for reliable sealing

Finish

Matte finish

A neat, professional appearance and easy handling · -20°C to +105°C for versatile use

Male Connector / Coupler for PU Polyurethane Ducting

✅ 3D Printed ✅ ABS Plastic ✅ Thick Walled

Frequently Asked Questions.

Answers to the questions we’re asked most about sizing, fitment and performance.

Still can't find your answer?

What is it used for?

Air, dust and light material transfer - workshop dust extraction, woodworking and CNC swarf removal, fume extraction, agricultural grain and feed handling, and general industrial ventilation. Its abrasion resistance is the main advantage over PVC.

What sizes and lengths do you stock?

Available in outside diameters from 50mm to 200mm, in black, white, red and blue. Order by internal diameter to match the spigot or machine outlet it connects to.

What temperature will it take?

-40C to +90C, manufactured to Acrylonitrile Butadiene Styrene Plastic. For genuinely hot air - engine exhaust or process air above that - you need silicone glass fibre ducting, which is rated -70C to +310C.

Can it be used on the suction side of a fan?

Yes - the embedded wire helix stops it collapsing under negative pressure, so it works on both sides of a fan or extractor. That is the fundamental difference between ducting and plain flexible hose.

How do I cut it to length?

Cut the wall between the helix coils with a sharp knife, then cut the wire with side cutters, and tape or dress the cut wire end so it cannot work through the wall or catch a hand.

How do I join lengths together?

Use a duct connector sized to the bore and secure each side with a worm drive clip or ducting clamp. We stock ABS male and reducing connectors for PU ducting in 50mm to 200mm outside diameter, covering 20 reducing pairings.