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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 10 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
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  5. Ralston XT Male to 7/16in-20 Medium Pressure Male Fitting

    Ralston XT Male to 7/16in-20 Medium Pressure 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)

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  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

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  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

        

Items 1 to 10 of 200 total

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

Set Descending Direction