Hot Dip Galvanized Quick Release Pipe Clamp 275g Zinc 80-600mm Adjustable

Hot Dip Galvanized Quick Release Pipe Clamp 275g Zinc 80-600mm Adjustable

This hot dip galvanized quick release pipe clamp is built for fast, tool-free connection of round spiral ducts, flexible hoses and dust extraction pipelines. The clamp body is pressed from 1.0-1.2mm cold rolled steel sheet and finished with a 275g/m2 hot dip galvanized coating, so it keeps its surface in humid workshops, coastal installations and outdoor duct runs instead of letting red rust creep out of the joint. A red EPDM rubber seal sits inside the channel and compresses against the duct wall the moment the toggle handle is closed, which produces an even, low-leak joint in a few seconds. Because the working diameter is continuously adjustable from 80mm to 600mm, one clamp family covers the full range of duct sizes found on a typical ventilation or dust collection project, and stock planning for installers and distributors stays simple.

Every batch is formed on our own stamping and roll forming lines, where the profile is rolled, punched and interlocked on dedicated dies rather than assembled by hand. The 275g/m2 zinc layer is checked with a coating thickness gauge on each production lot, the red EPDM ring is tested for hardness and compression set, and a sample joint is pressure checked before packing. Maintenance teams who run these clamps on grain handling, woodworking and paint booth extraction lines tell us the toggle tension stays consistent after repeated opening cycles, which is what keeps a duct system sealed through a full season of service work. Drawings, material certificates and pre-production samples are available before an order is confirmed.

Technical Specifications

Typical Applications

• HVAC supply and return ductwork in commercial buildings, schools and hospitals
• Woodworking, furniture and panel saw dust extraction lines
• Grain, feed and powder handling pipelines where joints are opened often
• Paint booth, welding fume and mist extraction systems
• Engine test benches and vehicle exhaust connection piping
• Temporary ventilation and dust control on construction sites

Why This Design Works On Site

• One hand locking: the toggle handle closes the clamp without a wrench, so a duct run can be assembled and stripped by one fitter standing on a ladder.
• Repeatable seal: the red EPDM ring is captured in the rolled channel and cannot be pushed out of position during installation, which keeps the joint airtight after repeated opening.
• Wide adjustment: the 80mm to 600mm range lets a single clamp suit both small branch ducts and main headers, cutting the number of SKUs a distributor has to carry.
• Corrosion margin: the 275g/m2 hot dip galvanized coating is heavier than standard pre-galvanized sheet, which matters in wash-down areas and coastal plants.
• Reusable parts: the clamp can be opened and re-tightened many times without deforming the profile, unlike crimped or welded connections.

Frequently Asked Questions

Q: Why use a 275g/m2 hot dip galvanized coating instead of ordinary pre-galvanized steel?
A: A 275g/m2 coating carries roughly two to three times the zinc of standard pre-galvanized sheet. On a galvanized quick release pipe clamp this extra layer is what protects the cut edges and the locking channel, the two places where corrosion normally starts first. For indoor ductwork the difference is long service life; for outdoor or wash-down areas it is the difference between a clamp that lasts a season and one that lasts several years.

Q: Is the 80mm to 600mm adjustment range reliable at both ends?
A: The clamp is produced in overlapping size bands, and each band is pressed so the V groove keeps its shape at the smallest diameter. At the wide end the toggle still reaches full over-centre lock, so the rubber seal is compressed evenly. If your project uses one dominant size, we can supply a dedicated diameter clamp with the same profile for a faster fit on site.

Q: How long does installation take with the toggle handle?
A: A trained fitter typically closes one clamp in under ten seconds, and no tool is needed because the handle is pressed down until it locks over centre. The same clamp can be opened just as quickly for filter changes or duct cleaning, which is the reason dust extraction contractors choose this quick release pipe clamp over bolted flange connections.

Q: Which duct materials does it connect?
A: It suits galvanized spiral duct, stainless round duct, flexible aluminium hose and rigid PVC pipe within the stated diameter range. The red EPDM seal grips smooth surfaces best; for very rough or corrugated flexible hose we recommend a slightly wider clamp band, which we can quote against your duct drawing.

Q: Can I get samples and a drawing before ordering?
A: Yes. Send the duct diameter, sheet thickness and the quantity you plan to run, and we will return a dimensioned drawing plus a sample clamp for trial fitting. Batch certificates for the zinc coating and the rubber seal are issued with every shipment, and mixed size containers can be arranged to help distributors test the market before committing to a full order.

Tell us the duct size and the working environment, and our engineering team will confirm the correct clamp band, seal material and packing plan for your project.