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    Gauge Accessories

    Diaphragm Seals
    Reliable Isolation for Pressure & Vacuum Gauges

    Our diaphragm seals are engineered to protect pressure and vacuum gauges from harsh or incompatible process media. Whether you're working with corrosive chemicals, slurries, viscous materials, or crystallising fluids, these isolation devices preserve gauge accuracy and lifespan by preventing media ingress.

    Key Applications:

    • Used with pressure gauges and test gauges where media protection is essential
    • Suitable for corrosive, high-particulate, or solidifying process fluids
    • Ideal for food, chemical, mining, and water treatment industries

    Compatibility:

    • Connects easily to most mechanical pressure and vacuum gauges
    • Optional capillary extension for remote mounting

    Temperature Ratings:

    • Standard Range: 0°C to 100°C
    • High-Temperature Version: Up to 300°C with HT silicone oil and extended neck or capillary tube

    Why Use Diaphragm Seals?

    • Prevents media from clogging or damaging gauge internals
    • Improves instrument reliability in challenging environments
    • Reduces maintenance and calibration frequency
    For the fastest quote turnaround
    Please use the quote form below rather than emailing general enquiries where possible. The form collects the key details needed to quote your gauge correctly and helps reduce follow-up questions.
    Explore gauge types

    Common Pressure Gauge Types & Applications

    Browse common pressure gauge styles, specialised instruments and gauge protection accessories used across industrial, process, HVAC and custom applications.

    Not sure which gauge you need?
    Request pressure gauge selection assistance
    If you are unsure whether this is the correct gauge, tell us about your application, pressure range, media or existing gauge and our team can help recommend a suitable solution.