40mm Industrial Pressure Gauges

The 40 mm industrial pressure gauges cover small machinery and crowded mounting points. Select construction according to the duty rather than choosing by diameter alone.

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4 products

40mm Back Entry Industrial Pressure Gauge

From £51.28

40mm Back Entry Glycerine Filled Pressure Gauge

From £57.11

40mm Bottom Entry Industrial Pressure Gauge

From £46.62

40mm Bottom Entry Glycerine Filled Pressure Gauge

From £44.34

Choosing 40mm Industrial Pressure Gauges

The 40 mm industrial pressure gauges cover small machinery and crowded mounting points. Select construction according to the duty rather than choosing by diameter alone.

The collection offers the dry and filled mounting combinations actually listed. The current models share 2.5% stated accuracy. Check the process-contact materials and connection.

The dial is intended for close inspection; confirm there is clearance around both case and connection. Where pressure pulsation causes unstable readings, consider the glycerine-filled option.

Selecting a 40 mm Gauge

The dial is intended for close inspection; confirm there is clearance around both case and connection. Where pressure pulsation causes unstable readings, consider the glycerine-filled option.

Duty-Specific Construction

Confirm whether the selected model is dry or liquid-filled, and check its wetted materials.

2.5% Accuracy

The stated accuracy is 2.5%. Compare the allowable error at the selected full scale with your measurement requirement.

Installation Check

Confirm the process connection, mounting position and expected pressure conditions.

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Applications

Suitable for local indication, replacement and equipment applications where the 40 mm format and industrial construction suit the duty.

Compact machinery

Provide a local reading beside the machine's controls.

Plant maintenance

Match a replacement gauge to the existing range and installation.

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

The collection offers the dry and filled mounting combinations actually listed. The current models share 2.5% stated accuracy. Check the process-contact materials and connection.

Confirm the range

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

Check the medium

A 316 stainless-steel case provides the external construction. Check wetted-part materials separately for process compatibility.

Check the 40 mm fit

Check access for a spanner as well as space for the 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 40 mm gauges?

The listed models are specified at 2.5% accuracy. Confirm the allowable error for the selected span and operating conditions.

Why choose a 40 mm dial?

The small dial keeps the installation compact, but needs to be read at close range.

Does the stainless-steel case determine media compatibility?

No. Check the wetted components and seals, which contact the process medium.

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.