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Ralston Instruments - Calibration Hoses & Fittings

Make a bubble-tight connection, over and over again, without a wrench.

Ralston Quick-test hose and adapters seal via an O-ring and probe. The probe slides into the O-ring and provides the seal while the threads keep the probe in place. This simple and reliable method allows for leak-free connections for pressure calibration, gas sampling, pressure reading and testing.

The specialist tube fittings adapt the Quick Test system to any Swagelok, Parker, Hoke, SSP, Tylok or equivalent tube fitting. They feature a unique design that seals on an o-ring to prevent damage to a tube fitting, allowing you to make and remake the connection hundreds of times without over-tightening a tube fitting.

If you can't find a suitable item or if you need some help or advice, please don't hesitate to contact us. With over 25,000 products in our catalogue we'll be able to find a solution that's right for you.

Items 41 to 50 of 54 total

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  1. Ralston QTHA-2MB0 - 5000 PSI / 345 Bar - Brass

    Ralston QTHA-2MB0 Quick-Test Male x 1/4" NPT Male Adapter

    • Ralston Quick-Test Male x 1/4" NPT Male Connections
    • Suits Ralston Quick-Test Hoses & Female Fittings
    • Rated to 345 Bar / 5000 PSI
    • Brass Construction

    See More Information

        

  2. Ralston QTHA-1MB1 - 3000 PSI / 207 Bar - Check Valve - Brass

    Ralston QTHA-1MB1 Quick-Test Male x 1/8" NPT Male Adapter with Check Valve

    • Ralston Quick-Test Male x 1/8" NPT Male Connections
    • Suits Ralston Quick-Test Hoses & Female Fittings
    • Integrated Check Valve
    • Rated to 207 Bar / 3000 PSI
    • Brass Construction

    See More Information

        

  3. Ralston QTHA-1MB0 - 5000 PSI / 345 Bar - Brass

    Ralston QTHA-1MB0 Quick-Test Male x 1/8" NPT Male Adapter

    • Ralston Quick-Test Male x 1/8" NPT Male Connections
    • Suits Ralston Quick-Test Hoses & Female Fittings
    • Rated to 345 Bar / 5000 PSI
    • Brass Construction

    See More Information

        

  4. Ralston QTQT-HOS-15M Calibration Hose with Reel (Brass)

    Ralston QTQT-HOS-15M Calibration Hose with Reel (Brass)

    • 15m Low Volume Hose with Reel
    • Rated to 475 Bar / 6900 PSI
    • Ralston Quick-Test Female Fittings (Brass)

    See More Information

        

  5. Ralston QTQT-HOS-30M Calibration Hose with Reel (Brass)

    Ralston QTQT-HOS-30M Calibration Hose with Reel (Brass)

    • 30m Low Volume Hose with Reel
    • Rated to 475 Bar / 6900 PSI
    • Ralston Quick-Test Female Fittings (Brass)

    See More Information

        

  6. Ralston QTQT-HOS-10M Calibration Hose (Brass)

    Ralston QTQT-HOS-10M Calibration Hose (Brass)

    • 10m Low Volume Hose
    • Rated to 475 Bar / 6900 PSI
    • Ralston Quick-Test Female Fittings (Brass)

    See More Information

        

  7. Ralston QTQT-HOS-5M Calibration Hose (Brass)

    Ralston QTQT-HOS-5M Calibration Hose (Brass)

    • 5m Low Volume Hose
    • Rated to 475 Bar / 6900 PSI
    • Ralston Quick-Test Female Fittings (Brass)

    See More Information

        

  8. Ralston QTQT-HOS-2M Calibration Hose (Brass)

    Ralston QTQT-HOS-2M Calibration Hose (Brass)

    • 2m Low Volume Hose
    • Rated to 475 Bar / 6900 PSI
    • Ralston Quick-Test Female Fittings (Brass)

    See More Information

        

  9. Ralston QTQT-HOS-1.5M Calibration Hose (Brass)

    Ralston QTQT-HOS-1.5M Calibration Hose (Brass)

    • 1.5m Low Volume Hose
    • Rated to 475 Bar / 6900 PSI
    • Ralston Quick-Test Female Fittings (Brass)

    See More Information

        

  10. Ralston QTHA-HSTE Quick-Test Male x Quick-Test Male x Quick-Test Male (Brass)

Items 41 to 50 of 54 total

per page
Page:
  1. 2
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  3. 4
  4. 5
  5. 6

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