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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 172 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

    $50.20 ex GST
    See More Information

        

  2. Ralston / Transtek Quick-Test 1M Hose + Brass NPT & Tube Fittings Kit

    Ralston / Transtek Quick-Test 1M Hose + Brass NPT & Tube Fittings Kit

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

    $418.00 ex GST
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  3. 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)

    $85.50 ex GST
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  4. 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

    $15.00 ex GST
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  5. 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

    $64.00 ex GST
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  6. 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

    $102.00 ex GST
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  7. Ralston QTHA-HSHS QTM Union Brass Fitting

    Ralston QTHA-HSHS QTM Union Brass Fitting

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

    $18.80 ex GST
    See More Information

        

  8. 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

    $90.10 ex GST
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  9. Ralston QTHA-MTB0-6mm QTM x 6mm Tube Fitting

    Ralston QTHA-MTB0-6mm QTM x 6mm Tube Fitting

    • Quick-Test Male to 6mm Tube Fitting
    • Brass

    $36.60 ex GST
    See More Information

        

  10. 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

    $24.90 ex GST
    See More Information

        

Items 1 to 10 of 172 total

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

Set Descending Direction