Pressure Gauge Selection Criteria for Water and Pumping Systems
A water pressure gauge that's wrong for the job usually still works, for a while. It reads, the dial moves, nobody questions it until a reading drifts or a fitting corrodes from the inside out. Spe...
BS EN 837 Pressure Gauge Accuracy Classes for Engineers
A pressure gauge that reads correctly on the bench and one that's actually fit for a control panel are not automatically the same instrument. Two gauges can share a range, a connection thread and a...
A Guide to Pressure Gauges for Pharmaceutical Applications
The label on a collection page doesn't tell you whether a gauge belongs on a pharmaceutical line. A sanitary pressure gauge is defined by wetted material, connection design and documentation, not b...
Absolute vs Gauge Pressure Selecting the Right Pressure Reference
Specify the wrong pressure reference on a gauge and the fault doesn't show up on the datasheet. It shows up in the field, when a system calibrated against sea-level atmospheric pressure reads diffe...
Capsule vs Bourdon Tube Gauges for Low Pressure Measurement
Specify a standard bourdon gauge on a low pressure line and it will often still turn, just not by much. A pressure change that would move a capsule gauge's pointer across half the dial barely nudge...
Pressure Gauge Failure Modes and How to Identify Them
A gauge that's reading wrong doesn't usually announce itself. It just sits there, quietly reporting a number that's no longer true, until something down the line goes wrong for a reason nobody can ...