McCaig Collim Spiral Tube – High-Quality Circular Ducting

The McCaig Collim Spiral Tube is a durable and precision-engineered circular duct solution designed for efficient air distribution in HVAC systems. Manufactured from galvanised steel using a spiral-winding process, it offers strength, airtight performance, and flexibility across a wide range of installations.

Key Benefits

Strong Spiral Construction
Produced using a spiral-wound manufacturing process, delivering
Enhanced rigidity and strength compared to traditional ducting methods.
Wide Range of Sizes
Available in diameters from 100Ø mm up to 1250Ømm, making it suitable for a variety of airflow requirements and project scales.
Standard & Custom Lengths
Supplied in standard 3 metre lengths, with custom lengths available on request for project-specific needs.
Lightweight Yet Durable
Manufactured from high-quality galvanised steel, offering an excellent balance between strength and manageable weight.
Efficient Airflow Performance
Smooth internal surface and consistent circular shape ensure reduced resistance and improved airflow efficiency.
Compatible System Range
Designed to integrate seamlessly with the full range of McCaig Collim circular fittings, enabling complete duct system solutions.

Applications

HVAC supply and extract systems
Commercial and industrial ventilation
Air handling and distribution networks
New installations and retrofit projects

Product Features

Spiral-wound circular duct
Galvanised steel construction
Standard 3m lengths with custom options available
Multiple gauges depending on diameter
Designed for strength, durability, and airflow efficiency

SPIRAL SUPPORT RING

SPIRAL WOUND GRAPHITE GASKET FOR STEAM

SQUARE HEAD BZP TWINTHREAD

SQUARE HEAD PLUG 316 STAINLESS STEEL 150LBS

SQUARE WASHER

SR SPIRAL DUCT

STAG JOINTING PASTE TYPE 'A' 400G TIN

STD SEAMLESS PIPE API5L SA106 GRB EN10216-2 P265GH 6MTR

STEEL WOOL MEDIUM 450G