Isolation Valves

Isolation valves for creating a controllable shut-off point at compatible pressure-gauge connections. Check thread, pressure, temperature, medium and safe isolation requirements.

1 product

Instrument Isolation Valves

From £13.00

Pressure gauge isolation valves

Isolation valves for creating a controllable shut-off point at compatible pressure-gauge connections. Check thread, pressure, temperature, medium and safe isolation requirements.

An isolation valve can separate the gauge connection from the process when installed and operated correctly. It does not alone make live maintenance safe.

Return to Pressure Gauge Accessories or browse all pressure gauges.

Contact GNW if thread or application compatibility requires confirmation.

Gauge isolation valve selection

Pressure gauge isolation valves support a specific part of a pressure-gauge installation. An isolation valve can separate the gauge connection from the process when installed and operated correctly. It does not alone make live maintenance safe.

Check the exact thread, size, material, pressure, temperature and medium compatibility shown on the product. Do not infer suitability from appearance or nominal size alone.

Follow the equipment manufacturer's installation instructions and the site's safe working procedure. Contact GNW where compatibility is uncertain.

Process isolation

An isolation valve can separate the gauge connection from the process when installed and operated correctly. It does not alone make live maintenance safe.

BSP thread compatibility

Match the accessory to the exact gauge, thread and installation arrangement.

Installation practicality

Verify pressure, temperature, material and medium compatibility before installation.

Learn more

Typical industrial applications

Use isolation valves where the installation needs the relevant mounting, protection, isolation or connection function. Confirm compatibility with the gauge and process before ordering.

Pressure gauge maintenance

planned gauge isolation

OEM equipment builds

compatible hydraulic or pneumatic systems

Process instrumentation

maintenance and replacement access

Plant replacement stock

BSP-thread valves are practical spares for maintenance stores where common pressure gauge fittings and replacement accessories are held for planned work.

How to choose isolation valves

Select the right isolation valves by checking the pressure duty, performance, process compatibility and installation details.

Confirm gauge compatibility

Match dimensions, threads and the intended function to the pressure gauge or instrument.

Check the process connection

Confirm thread form, nominal size and male/female arrangement on both sides of the connection.

Review materials and media

Check body, seal and wetted materials against the process medium, temperature and cleaning conditions.

Check the installation space

Allow room for fitting, operation and maintenance without placing strain on the gauge connection.

Isolation Valves FAQs

Answers to common questions about selecting and using isolation valves.

How do I choose the correct isolation valves?

Start with the gauge model, connection size and installation purpose, then confirm materials, pressure and temperature limits on the product page.

Are pressure-gauge accessories universal?

No. Threads, dimensions, materials and ratings vary, so compatibility must be checked for the specific gauge and process.

Can this accessory change measurement performance?

Some accessories can affect response time, temperature exposure or installation geometry. Select them for the process conditions and required response.

Where can I get selection help?

Contact GNW with the gauge model, pressure range, process medium, connection and operating temperature for product-specific guidance.