Male Connector / Coupler for PU Polyurethane Ducting

3D Printed ABS Plastic Thick Walled

PUDJ051K-ASH

£6.95

Not for high pressure or heat

Not suitable for high-pressure or high-temperature applications, such as turbo or radiator systems.

Delivery/Collection

Collect from Silicone Hose UK

Orders can be collected once you receive your ready-to-collect email.

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: -40°C to +90°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

1

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.

2

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.

3

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.

4

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 · -40°C to +90°C for versatile use

Ducting joiner. Clamp and go.

ABS spigot connectors for PU polyurethane ducting.

OUTSIDE DIAMETERS

50mm to 200mm

RATED

−40°C to +90°C

MATERIAL

ABS plastic

PRODUCTION

3D printed

COLOURS

Black, white, red or blue

Find your perfect colour

Moulded in colour the whole way through, so a scuff will not show a different colour underneath. The Male Connector / Coupler for PU Polyurethane Ducting is the same part in all four colours — only the colour changes.

Black

White

Male Connector / Coupler for PU Polyurethane Ducting – Red

Red

Blue

Colours shown are indicative — screen rendering varies.

How it's built

What it's made of.

Made from acrylonitrile Butadiene Styrene (ABS).

1

Material

Acrylonitrile Butadiene Styrene (ABS)

Durability and impact resistance

2

Design

Male inline connector

PU polyurethane ducting; clamp-secured spigot for reliable sealing

3

Finish

Matte finish

A neat, professional appearance and easy handling-40°C to +90°C for versatile use

Product gallery

Frequently Asked Questions.

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

Still can't find your answer?

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What is it for?

Joining a length of PU polyurethane ducting to another length, or to a machine spigot, in ventilation, dust extraction and general air handling. The male spigot slides inside the ducting and clamps up - no adhesive needed.

What sizes do you stock?

Outside diameters of 50mm, 65mm, 80mm, 100mm, 125mm, 150mm and 200mm. Order to match the bore of the ducting it goes inside.

What is it made from?

ABS plastic with a 2mm wall, 3D printed. It resists impact and moisture, is stable indoors or out, and does not corrode the way a thin steel fitting will in a damp extraction run.

How do I secure it?

A worm drive clip or ducting clamp over the ducting at each end, tightened onto the spigot underneath. That is what makes the joint leak-resistant - the spigot locates it, the clamp seals it.

Does it leak air?

Not if it is clamped properly. On a dust extraction run in particular, chase every joint - a leaking joint on the suction side bleeds away the airflow you are paying for at the fan.