100mm General Purpose Pressure Gauges

100 mm general-purpose dry pressure gauges with ±1.6% FS accuracy, available in bottom- or back-entry versions for routine local monitoring.

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2 products

100mm Bottom Entry General Purpose Pressure Gauge

From £36.72

100mm Back Entry General Purpose Pressure Gauge

From £36.72

About the 100 mm Range

The 100 mm general-purpose range offers a larger dial for pressure indication on plant, service equipment and machinery. Bottom entry suits conventional upright mounting, while back entry is available for installations with a rear process connection.

These dry mechanical gauges use brass wetted components and are specified at ±1.6% of full scale. They are intended for suitable, relatively steady applications; check the selected range and material compatibility before ordering.

If you are replacing an existing 100 mm gauge, confirm the full dial scale and thread size. The industrial and all-stainless-steel 100 mm ranges have different construction and accuracy specifications, so should not be treated as identical replacements.

Selecting a 100 mm Gauge

If you are replacing an existing 100 mm gauge, confirm the full dial scale and thread size. The industrial and all-stainless-steel 100 mm ranges have different construction and accuracy specifications, so should not be treated as identical replacements.

100 mm Dial

100 mm dial for clearer local readings on plant and machinery.

±1.6% FS Accuracy

±1.6% FS accuracy on the two general-purpose models in this range.

General Purpose Construction

Separate bottom- and back-entry products for different mounting positions.

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Applications

Suitable for local indication, replacement and equipment applications where the 100 mm format and general purpose construction suit the duty.

Plant inspection points

Read pressure during routine rounds or maintenance checks.

Service systems

Monitor routine pressure on equipment with a suitable medium and range.

Replacement instruments

Check the scale, entry position and connection against the original gauge.

Equipment checks

Use the specified accuracy to decide whether the gauge suits the readings being checked.

How to Choose

Confirm the range and accuracy, check the process medium, verify the available space and match the connection and entry position.

Confirm the range

Cover normal operation and expected peaks while keeping the required readings easy to interpret.

Check the medium

Check the specified copper-alloy wetted components against the process medium.

Check the 100 mm fit

Check the viewing angle and space around the larger case.

Match the connection

Check the exact thread and the entry position offered by the selected product.

Frequently asked questions

Practical answers to help with selection and replacement.

What is the accuracy of these 100 mm gauges?

The 100 mm general-purpose gauges are rated ±1.6% FS. The 100 mm industrial and all-stainless ranges are separate product families with different specifications.

Why choose a 100 mm dial?

A 100 mm dial gives more viewing area for routine readings and checks.

When should I choose another construction?

Consider a filled gauge for vibration or a different wetted material where the medium requires it.

Will it fit an existing gauge connection?

Check the thread form and size, entry position and case dimensions. Matching the dial diameter alone is not enough.