How to measure a hose for a clamp
Measure the outside diameter of the hose when it is fitted on the pipe, in millimetres. Choose a clamp whose range covers that size, ideally near the middle of the range. Not sure? Send a photo of the old clamp.
Resources
Catalogues and guides
Quick-send catalogues to download or forward, and short guides to order the right item first time.
BSP or NPT?
BSP / BSPT are British threads (55°), common on Indian and European equipment; BSP is parallel, BSPT tapered. NPT is the American taper thread (60°). They look alike but do not seal together. Send us a photo or the old part and we will identify it.
Which clamp material?
Plated mild steel for general, dry and indoor use · SS 202 for better rust resistance at a lower cost · SS 304 for outdoor, washdown and coolant · SS 316 for marine, chemical and coastal sites. T-bolt clamps come in SS 202 with a plated bolt as standard; SS 304 and SS 316 against order. Materials table →
Five mistakes that cause leaks
- Wrong torque: too tight crushes the hose, too loose slips.
- Buying on price only: leaks and downtime cost more.
- Wrong material: plated steel rusts in wet areas.
- Ignoring pressure and vibration: use heavy duty, T-bolt or spring types.
- Wrong clamp type for the job: ask us.
Send your requirement
Clamp or fitting type (or a photo of the old one), size, material and quantity. We confirm the item and send the price.