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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 111 total

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  1. Ralston QTHA-2FBA-RG Quick-Test Female x 1/4" BSPP Female (Brass)

    Ralston QTHA-2FBA-RG Quick-Test Female x 1/4" BSPP Female (Brass)

    Suits Ralston Male Adaptors and acts as gauge adapter for DP0V and DPPV pumps

    $41.30+GST
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  2. Ralston / Transtek Quick-Test 1m Hose, NPT & Tube Fittings Kit (Brass)

    Ralston / Transtek Quick-Test 1m Hose, NPT & Tube Fittings Kit (Brass)

    • 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

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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)

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  4. Ralston QTFT-CAPB Cap & Chain Fitting (Brass)

    Ralston QTFT-CAPB Cap & Chain Fitting (Brass)

    Suits Ralston Calibration Adapters

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  5. Ralston QTHA-FRS0 Quick-Test Male x 5/16"-24 UNF Male (Stainless Steel)

    Ralston QTHA-FRS0 Quick-Test Male x 5/16"-24 UNF Male (Stainless Steel)

    Suits Ralston Calibration Hoses

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  6. Ralston QTHA-2FSF-QD Quick-Test Male x 37° Flare Female Quick-Connect (Stainless Steel)
  7. Ralston QTHA-HSHS Quick-Test Male Union (Brass)

    Ralston QTHA-HSHS Quick-Test Male Union (Brass)

    MQT x MQT (Brass)

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  8. Ralston QTHA-HSTE Quick-Test Male x Quick-Test Male x Quick-Test Male (Brass)
  9. Ralston QTFT-CAPS Cap & Chain Fitting (Stainless Steel)

    Ralston QTFT-CAPS Cap & Chain Fitting (Stainless Steel)

    Suits Ralston Male Adaptors
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  10. 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)

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Items 1 to 10 of 111 total

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

Set Descending Direction