Here are different gauges:
Gauges' have ranges from 0-15 PSI to 0-2000 PSI.
Dry
- Standard
4 inch dial gauges, bottom mount.
- Not for use with oxygen
2 inch dial gauges, bottom or centre back mount.
Liquid filled
- Standard
4 inch dial gauges, bottom mount.
- Stainless steel
2 1/2 inch dial gauges, bottom and centre back
mount.
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Which gauge is for you?
You should choose a gauge with a range that is double what you
need. Gauges are measured in PSI (pounds per square inch), with
some gauges using both metric (kPA) and imperial (BAR) scales.
You should select a gauge size that is easily viewed and that
meets your space requirements. Gauge size is measured by the
diameter of the dial. The dial is the area of the gauge showing
the scale and the needle.
The gauge mount (bottom or centre back mount) indicates the
location of the threaded process connection on the gauge. Standard
connections are usually male NPT (pipe thread) in a variety
of sizes.
Each type of gauge has unique features to meet typical applications.
Most gauges have +/- 1.5% to 3% accuracy.
Liquid filled gauges offer a significant cushioning and
dampening effect, reducing pointer flutter and internal gauge
damage while lubricating the internal movement and reducing
corrosion. They are usually used where vibration or pulse
occurs. Typical applications include water pumps, engines,
motors, air compressors, hydraulic presses, and many other
types of hydraulic and pneumatic equipment.
Stainless steel gauges are built for durability and extended
life. They are designed for harsh corrosive environments.
These gauges usually offer increased accuracy. Applications
include power generation, general industrial machinery, process
and chemical equipment.
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