40mm Bottom Entry All Stainless Steel Pressure Gauge

For dry-gauge installations requiring stainless process contact, this 40 mm model provides clear local pressure monitoring. Its compact 40 mm dial is well suited to small machines, control panels and installations where space around the connection is limited. A 304 stainless steel case surrounds the instrument, while 316 stainless steel wetted parts provide process contact for suitably compatible media.

The lower connection suits upright mounting on compact pipework, manifolds and equipment ports where the gauge is read from close by. It suits relatively stable process pressures where an upright stainless gauge is needed and liquid filling is not required. Before ordering, check the scale range, thread, media compatibility and expected operating temperature against the application.

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Where optional calibration is selected, the calibration certificate is issued by GNW Instrumentation. What’s included?

Why is calibration important?

Quantity:

£55.50

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Estimated delivery: Approx. 2–3 working days.

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Overview

40mm bottom entry compound gauge, 1/8'' BSP. Range: -1/0 bar to 0/+2 bar & -30/0 inHg to 0/+30 psi. Bezel: Crimped 304 stainless steel. Case: 304 stainless steel. Internals: 316L stainless steel. Accuracy: 2.5%.

GNW Instrumentation 40mm Bottom Entry All Stainless Steel Pressure Gauge

£55.50

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Technical Specification

Size

40mm

Case

304 Stainless Steel

Bezel

Crimped 304 Stainless Steel

Wetted Parts

316L Stainless Steel

Window

Polycarbonate Plastic

Dial

Aluminium - Dual Scale

Pointer

Black Aluminium

Accuracy

2.50%

Connection Size

1/8" BSP, 1/8" BSPT, 1/4" NPT, 1/4" BSPT

Connection Orientation

Bottom Entry

Optional Calibration & Certification

Add an optional calibration certificate to document your instrument’s performance before use and support your quality records. Find out below what testing is included and what your certificate provides.

Who issues the certificate?	Where optional calibration is selected, the calibration certificate is issued by GNW Instrumentation.
What testing is included?	The pressure gauge is compared with traceable reference pressure equipment at selected test points appropriate to its measuring range. The actual calibration points are recorded on the certificate.
What does the certificate report?	The certificate identifies the instrument and reference equipment, and reports the applied pressures, instrument indications and measurement errors. Results relate to the instrument as calibrated.

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Applications

Compact Process Skids

40mm dial and bottom entry connection suit local pressure indication on compact process skids where instrument space is restricted.

OEM Machinery Assemblies

Machinery builders can integrate this all stainless steel pressure gauge into equipment requiring a small, bottom-mounted pressure indicator.

Stainless Steel Pipework Monitoring

The 304 stainless steel case and 316 stainless steel wetted parts make it relevant for pressure points on compatible stainless steel pipework systems.

Maintenance Replacement Gauges

Engineering teams can use it as a like-for-like replacement where a 40mm bottom entry gauge with stainless steel construction is specified.

Features

Dial

The 40mm dial provides a compact local indication point where space around pipework, panels or machinery is limited.

Configuration

Bottom entry connection supports direct mounting from below, suiting vertical pipe runs, compact assemblies and OEM equipment layouts.

Construction

A 304 stainless steel case with 316 stainless steel wetted parts gives robust construction for industrial environments where the process medium is compatible.

Accuracy

The stated accuracy of 2.5% supports defined pressure indication requirements where this accuracy level is specified in the application or purchasing standard.

FAQs

Is this gauge suitable where panel or pipework space is limited?

Yes, the 40mm size is intended for compact local pressure indication where a larger dial would be difficult to accommodate.

What does the bottom entry connection mean for installation?

Bottom entry means the process connection is located at the base of the gauge, typically for vertical mounting on pipework, manifolds or equipment ports.

Are the wetted parts stainless steel?

Yes, the wetted parts are 316 stainless steel, but chemical compatibility should still be checked against the process medium and operating conditions.

How should I interpret the stated accuracy of 2.5%?

Use the stated 2.5% accuracy value when matching the gauge to a specification or existing installation, as no additional accuracy class is provided here.

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40mm Bottom Entry All Stainless Steel Pressure Gauge