Gauge Accessories

Browse our range of pressure gauge accessories designed to support the installation, protection, and performance of industrial pressure gauges in demanding applications. Our collection includes stainless steel and brass adaptors, mounting flanges and clamps, isolation valves, syphons, pressure snubbers, rubber protective covers, and sealing washers suitable for process, hydraulic, pneumatic, and general industrial systems.

Panel Mount Clamps - GNW Instrumentation

Mounting Flanges & Clamps

Isolation Valves

Protective Covers

Brass Adaptors

Stainless Steel Adaptors

Syphons

Snubbers

Collection

Pressure Gauge Accessories

Pressure gauge accessories play a vital role in ensuring accurate pressure measurement, improving gauge lifespan, and protecting instrumentation from harsh operating conditions. Selecting the correct accessories for a pressure gauge installation can help reduce vibration damage, minimise pressure pulsation, improve sealing performance, simplify maintenance, and enhance operator safety across industrial process systems.

Our range of pressure gauge accessories is suitable for use with a wide variety of analogue and digital pressure gauges used in hydraulic systems, pneumatic systems, compressed air installations, chemical processing, water treatment, manufacturing plants, oil and gas applications, food production, and general industrial process control. We supply high-quality components manufactured from durable materials including stainless steel, brass, and plated steel to suit corrosive environments, high-pressure applications, and general-purpose installations.

The collection includes stainless steel and brass pressure gauge adaptors for converting thread types and connection sizes, allowing compatibility between gauges, pipework, manifolds, and process connections. These adaptors are available in a range of BSP, BSPT, NPT, and metric thread configurations to suit common industrial pressure measurement systems.

Isolation valves are used to safely isolate pressure gauges from the process line during maintenance, calibration, or replacement without shutting down the full system. Gauge syphons help protect pressure instruments from high-temperature media such as steam by creating a cooling barrier between the process and the gauge, while pressure snubbers reduce the effects of pulsation, pressure spikes, and vibration that can cause premature wear or inaccurate readings.

We also supply mounting flanges, mounting clamps, and fixing accessories for panel-mounted and surface-mounted pressure gauges, together with sealing washers and bonded seals designed to improve leak prevention on threaded pressure connections. Rubber protective gauge covers provide additional impact resistance and environmental protection for gauges operating in demanding industrial environments or mobile equipment applications.

Whether you are installing new pressure instrumentation, upgrading an existing process system, or replacing worn components, our pressure gauge accessories are designed to improve installation reliability, measurement stability, and long-term gauge performance across a broad range of industrial pressure monitoring applications.

Pressure Gauge Installation Accessories

The resources below provide further information on pressure gauge accessories used for installation, protection, maintenance, and performance optimisation in industrial pressure measurement systems.

Thread Adaptors and Connections

Pressure gauge adaptors are used to convert thread sizes and connection types between gauges, valves, manifolds, and pipework. Available in stainless steel and brass, these fittings support BSP, BSPT, NPT, and metric pressure connections across hydraulic, pneumatic, and process systems.

Protection and Gauge Longevity

Pressure snubbers, syphons, sealing washers, and rubber gauge covers help protect pressure instruments from vibration, pulsation, temperature extremes, pressure spikes, and environmental damage. Correct accessory selection can significantly improve gauge lifespan and measurement stability.

Mounting and Isolation Solutions

Mounting flanges, panel clamps, and isolation valves provide secure installation and safer maintenance of industrial pressure gauges. Isolation valves allow gauges to be removed or calibrated without shutting down the full process system, helping reduce downtime and improve serviceability.

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Applications

Hydraulic Systems

Pressure snubbers and isolation valves are commonly used in hydraulic systems to reduce pressure pulsation, protect gauge mechanisms from shock loading, and allow safe maintenance without shutting down equipment.

Steam and High Temperature Applications

Gauge syphons are used on steam and high-temperature process lines to reduce heat transfer to the pressure gauge, helping protect internal components and improve service life.

Process and Chemical Industries

Stainless steel adaptors, sealing washers, and isolation valves are widely used in chemical processing and industrial applications where corrosion resistance and leak-free pressure connections are essential.

Mobile Plant and Outdoor Equipment

Rubber gauge covers, mounting clamps, and vibration protection accessories help improve gauge durability on mobile machinery, compressors, pumps, and outdoor equipment exposed to harsh environments and mechanical vibration.

How to Choose Gauge Accessories

Connection Type

Select accessories with compatible BSP, BSPT, NPT, or metric threads to ensure correct installation between pressure gauges, valves, and pipework systems.

Material Construction

Choose brass accessories for general-purpose air and water applications, or stainless steel accessories for corrosive media, outdoor environments, or demanding industrial process systems.

Pressure and Temperature Conditions

For systems with high temperatures or pressure pulsation, use syphons and pressure snubbers to protect gauges from thermal damage, vibration, and pressure spikes.

Installation Requirements

Consider whether panel mounting, direct mounting, or isolation capability is required. Mounting flanges, clamps, and isolation valves can improve accessibility, maintenance, and overall installation safety.

FAQs

Some common gauge accessories questions and answers.

What does a pressure gauge snubber do?

A pressure gauge snubber reduces the effects of pressure spikes and pulsation within hydraulic and pneumatic systems, helping stabilise readings and protect the gauge mechanism from damage.

When should a gauge syphon be used?

Gauge syphons are typically used on steam or high-temperature applications to reduce heat transfer from the process media to the pressure gauge.

Should I choose brass or stainless steel accessories?

Brass accessories are suitable for general-purpose non-corrosive applications such as air and water systems, while stainless steel accessories are recommended for corrosive environments or harsh industrial conditions.

Why are isolation valves used with pressure gauges?

Isolation valves allow a pressure gauge to be safely isolated from the process system during calibration, maintenance, or replacement without shutting down the full installation.