How to Choose a Bolt for a Structural or Machine Joint

Most bolt problems we see come from the same place: someone picked a size that looked about right, and nobody checked how the joint actually carries its load. A bolt that is fine in a catalogue can still loosen, fatigue or tear out of the plate it is holding. This...

How Much Does a Steel Pipe Grow When It Heats Up?

Steel pipe grows when it gets hot. Plenty of designs go wrong because nobody allowed for it. A steam line, hot water main or exhaust duct can move tens or even hundreds of millimetres between cold and operating temperature. If that movement has nowhere to go, it turns...

How to Size a Pump for a Water System: A Step-by-Step Guide

Most pump problems start with the selection, not the pump. A unit that is too small never delivers the flow, and one that is too big wastes energy, runs off its curve and wears out early. The method for getting it right is straightforward. Work through it in order and...