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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 1 to 25 of 200 total

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  1. Ralston QTHA-2FBA-RG QTF x 1/4in FBSPP Fitting

    Ralston QTHA-2FBA-RG QTF x 1/4in FBSPP Fitting

    • Quick-Test Female to 1/4in FBSPP Fitting
    • Brass

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  2. Ralston XTFT-FRS0 DP Transmitter Adapter XTM x 5/16in-24 UNF Male with Cap and Chain

    Ralston XTFT-FRS0 DP Transmitter Adapter XTM x 5/16in-24 UNF Male with Cap and Chain

    • Rated to 10,000 PSI / 700 Bar
    • Transmitter Adapter Male Quick-Test to 5/16in-24 Male UNF
    • Includes Cap and Chain
    • Stainless Steel

    See More Information

  3. Ralston XTHA-3MS0 Male XT x 3/8in MNPT Fitting

    Ralston XTHA-3MS0 Male XT x 3/8in MNPT Fitting

    • Rated to 10,000 PSIG / 700 Bar
    • XT Male to 3/8in MNPT Fitting
    • Stainless Steel

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  4. Ralston QTHA-PMS0-0.125-1.5 Petes Plug to Female QT Fitting

    Ralston QTHA-PMS0-0.125-1.5 Petes Plug to Female QT Fitting

    • Ralston Pete's Plug to Female Quick-Test Adapter (Stainless Steel)
    • Connect to any Size Pete's Plug for testing, sampling or reading a pressure

    1/8" Petes Plug II Probe (1/8" dia x 1.5 long) x female Quick-test, S.S.
    $132.00 ex GST
    See More Information

        

  5. Ralston XTHA-2MS0-MP XT Male to 7/16in-20 MP Male Fitting

    Ralston XTHA-2MS0-MP XT Male to 7/16in-20 MP Male Fitting

    • Suits Crystal CPF / Autoclave / Butech / HIP / Parker Medium Pressure Fittings
    • Ralston XT Male to 7/16in-20 MP Male Connections

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  6. Ralston QTFT-2MSL  QTM x 1/4in MNPT 90 deg Elbow Fitting with Cap and Chain

    Ralston QTFT-2MSL QTM x 1/4in MNPT 90 deg Elbow Fitting with Cap and Chain

    • Quick-Test Male to 1/4in MNPT Fitting
    • 90° elbow
    • Includes Cap and Chain
    • Stainless Steel

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  7. Ralston QTQT-KIT-1M Quick-Test 1M Hose and Fittings Kit

    Ralston QTQT-KIT-1M Quick-Test 1M Hose and Fittings Kit

    • 1/8in & 1/4in Male & Female NPT Adapters
    • 1/4in Tube Adapters
    • 1m Low Volume Quick-Test Hoses
    • Adapters Rated to 5000 PSI / 345 Bar
    • Hoses Rated to 6900 PSI / 475 Bar

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  8. Ralston QTQT-HOS-1M Calibration Hose (Brass)

    Ralston QTQT-HOS-1M Calibration Hose (Brass)

    • 1m Low Volume Hose
    • Rated to 475 Bar / 6900 PSI
    • Ralston Quick-Test Female Fittings (Brass)

    See More Information

        

  9. Ralston QTFT-CAPB Brass Cap & Chain Fitting

    Ralston QTFT-CAPB Brass Cap & Chain Fitting

    • Brass Cap & Chain for Ralston Male QT Adapters
    • Converts any QTHA fitting to QTFT

    See More Information

        

  10. Ralston QTHA-FRS0 DP Transmitter Adapter QTM to 5/16in-24 UNF Male

    Ralston QTHA-FRS0 DP Transmitter Adapter QTM to 5/16in-24 UNF Male

    • Transmitter Adapter Male Quick-Test to 5/16in-24 Male UNF
    • Stainless Steel

    See More Information

        

  11. Ralston QTHA-2FSF-QD QTM x 37 deg Flare Female Quick-Connect Fitting

    Ralston QTHA-2FSF-QD QTM x 37 deg Flare Female Quick-Connect Fitting

    • Quick-Test Male to 37° Flare Female Fitting
    • Quick-Connect
    • Stainless Steel

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  12. Ralston QTHA-HSHS QTM Union Brass Fitting

    Ralston QTHA-HSHS QTM Union Brass Fitting

    • Quick-Test Male to Quick-Test Male union fitting
    • Brass

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  13. Ralston QTHA-HSTE MQT Run x MQT Run x MQT Branch Tee Fitting

    Ralston QTHA-HSTE MQT Run x MQT Run x MQT Branch Tee Fitting

    • Male Quick-Test Run to Male Quick-Test Run to Male Quick-Test Branch Tee Fitting
    • Brass

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  14. Ralston QTHA-MTB0-6mm Metric Tube Fitting

    Ralston QTHA-MTB0-6mm Metric Tube Fitting

    • Quick-Test Male to 6mm Brass Tube Fitting
    • Suits Swagelok, Parker, Hoke, SSP, Tylok or equivalent tube fitting

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  15. Ralston QTFT-CAPS Stainless Steel Cap & Chain Fitting

    Ralston QTFT-CAPS Stainless Steel Cap & Chain Fitting

    • Stainless Steel Cap & Chain for Ralston Male QT Adapters
    • Converts any QTHA fitting to QTFT

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  16. 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

        

  17. 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

        

  18. 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

        

  19. 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)

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  20. 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)

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  21. 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

        

  22. Ralston QSQS-HOS-1M Calibration Hose (Stainless Steel)

    Ralston QSQS-HOS-1M Calibration Hose (Stainless Steel)

    • 1m Low Volume Hose
    • Rated to 475 Bar / 6900 PSI
    • Ralston Quick-Test Female Fittings (Stainless Steel)

    See More Information

        

  23. Ralston QSQS-HOS-1.5M Calibration Hose (Stainless Steel)

    Ralston QSQS-HOS-1.5M Calibration Hose (Stainless Steel)

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

    See More Information

        

  24. Ralston QSQS-HOS-2M Calibration Hose (Stainless Steel)

    Ralston QSQS-HOS-2M Calibration Hose (Stainless Steel)

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

    See More Information

        

  25. Ralston QSQS-HOS-5M Calibration Hose (Stainless Steel)

    Ralston QSQS-HOS-5M Calibration Hose (Stainless Steel)

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

    See More Information

        

Items 1 to 25 of 200 total

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

Set Descending Direction