Alpha Air Ventilation Supplies
MM

INCH

Suspension Rings 125mm

Professional-grade galvanised steel duct fitting for ventilation systems. Suspension Rings 125mm is manufactured to high standards for durability and performance. Designed for easy installation and secure connections. Suitable for HVAC, extraction, and industrial ventilation.

£1.50

20% VAT added at checkout

In Stock – Available for next day delivery

Order before 3pm today for delivery by Monday 14th September

Select Size

Description

Suspension Rings in 125mm — galvanised steel hanging rings sized to support 125mm spiral ducting.

A suspension ring wraps the duct and provides a fixing point to hang it from the building structure, most commonly on threaded rod dropped from beam clamps or purlin clips. Rings hold the duct round and secure without crushing it, and spacing them at regular intervals keeps long runs straight and level. For larger diameters and heavier runs, see our two-piece split rings, which bolt together around the duct.

Key features

  • 125mm diameter to suit 125mm spiral ducting
  • Galvanised steel for corrosion resistance
  • Provides a secure fixing point for threaded-rod suspension
  • Use with our beam clamps, purlin clips and threaded rod fittings
  • Available in diameters from 80mm to 400mm

This item is normally held in stock — order by 3pm for next-working-day dispatch, and delivery is free to UK mainland addresses on orders over £400 ex VAT.

Frequently Asked Questions

How do I hang spiral ducting from the ceiling?

The standard method is a ring around the duct, suspended on threaded rod from the building structure. Fix a beam clamp or purlin clip to the steelwork (no drilling needed), drop M8 or M10 threaded rod from it, and bolt the rod to a split ring or suspension ring clamped around the duct. Space the rings at regular intervals along the run in line with good installation practice.

What is the difference between a split ring and a suspension ring?

A split ring is a two-piece ring whose halves bolt together around the installed duct, spreading the load evenly right around the circumference — the usual choice for larger diameters and heavier runs. A suspension ring is a simpler one-piece ring that wraps the duct and provides a fixing point for the rod. Both hold the duct round and secure without crushing it.

What sizes are available?

Ring sizes match spiral duct diameters exactly — a 200mm ring suits 200mm duct. Split rings are stocked from 80mm right up to 1000mm, covering every standard spiral size; suspension rings run from 80mm to 400mm. For diameters above 400mm, use split rings.

What are the rings made of?

Galvanised steel, for corrosion resistance and a long service life in commercial and industrial installations. They pair with the rest of our fixings range — threaded rod in M8 and M10, beam clamps, purlin clips and channel components — so a complete suspension system can be ordered in one go, with free delivery on orders over £400 excluding VAT.

Delivery Information

In Stock

Next Day Delivery — order before 3pm Monday to Friday for dispatch the same day.

Delivery Options

ServiceEstimated DeliveryCost
Standard Delivery (UK mainland)Next working day from dispatch£15.95 +VAT (£7.95 for small items)
Free DeliveryNext working day from dispatchFree on orders over £400 ex VAT
Click & CollectCollect from our Leicester branchFree
Scottish Highlands & Islands2-3 working days from dispatch£36.95 +VAT

Delivery Area

We deliver to all UK mainland addresses. Scottish Highlands and Islands deliveries may take a little longer. We are not currently delivering to Northern Ireland — Click & Collect remains available.

Questions about delivery? Call us on 0116 246 0031 or email sales@alphaair.co.uk

Returns Policy

Six-Week Returns — No Restocking Fees

We want you to buy with confidence. You can return any standard stocked item within six weeks (42 days) of delivery for a full refund — 100% of the item price, no restocking or handling fees. Trade and business customers get exactly the same rights as retail customers. See our Returns Policy for full details.

Return Conditions

  • Items must be unused and in original packaging
  • Custom-made, bespoke or powder-coated items are made to your specification and cannot be returned unless faulty
  • Items must be returned with proof of purchase
  • Return shipping costs are the responsibility of the customer unless the item is faulty

How to Return

  1. Contact our customer service team to arrange a return
  2. Pack the item securely in its original packaging
  3. Include your order number and reason for return
  4. Ship the item to our returns address

Faulty Items

If you receive a faulty or damaged item, please let us know as soon as possible — ideally within 48 hours of delivery, so we can claim against the courier on your behalf. We will arrange a free collection and send a replacement or issue a full refund. This does not affect your statutory rights.

Questions? Contact us at sales@alphaair.co.uk

Calculating delivery... order within --h --m --s (3pm cutoff, stock items) Need it sooner? Contact us