Size Charts

Reference charts for identifying threads, injectors and nozzles. If you need help matching a part to your machine, call us on 015395 66193 and we will work it out with you.

12 thread sizes

BSP Thread Size Chart

Female inside and male outside diameters for BSP threads from 1/8" to 3", so you can identify a fitting with a set of calipers.

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Injector selection + part numbers

Foam Nozzle Size Chart

Select the correct foam injector from your machine’s flow rate and working pressure, with an injector and lance cross-reference.

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Nozzle sizes 01–50

Pressure Washer Nozzle Chart

Find the right nozzle size from working pressure in bar and flow in litres per minute, covering nozzle sizes 01 to 50.

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HP calculator + frame sizes

Electric Motor Sizing Guide

Estimate the motor horsepower needed to drive a pump from flow rate and pressure, and compare common IEC motor frame sizes.

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Not sure which size you need?

Send us a photograph of the part along with the machine make and model, or call the team on 015395 66193. Measurements are easy to get wrong — similar-looking fittings often use different thread forms.

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