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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 52 total

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  1. Ralston QTHA-4FSA-QD Quick-Test Female x 1/2" NPT Female Quick-Connect (Stainless Steel)
  2. Ralston QTHA-4MS0 Quick-Test Male x 1/2" NPT Male (Stainless Steel)

    Ralston QTHA-4MS0 Quick-Test Male x 1/2" NPT Male (Stainless Steel)

    Suits Ralston Calibration Hoses

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  3. Ralston QTHA-4MS0-QD Quick Test Male x 1/2" NPT Male Quick-Connect (Stainless Steel)

    Ralston QTHA-4MS0-QD Quick Test Male x 1/2" NPT Male Quick-Connect (Stainless Steel)

    Stainless Steel 1/2" Female NPT Quick-Connect to Ralston Male Quick-Test Hose Adapter

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  4. Ralston QTHA-4MS1 Quick-Test Male x 1/2" NPT Male (Stainless Steel, Check Valve)
  5. Ralston QTHA-4TS0 Quick-Test Male x 1/2" Tube Female (Stainless Steel)

    Ralston QTHA-4TS0 Quick-Test Male x 1/2" Tube Female (Stainless Steel)

    Suits Ralston Calibration Hoses

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  6. Ralston QTHA-CMS0-C580-QD Quick-Test Male x CGA 580 Male Quick-Connect Adapter (Stainless Steel)

    Ralston QTHA-CMS0-C580-QD Quick-Test Male x CGA 580 Male Quick-Connect Adapter (Stainless Steel)

    • CGA 580 (US Standards) Male x Ralston Quick-Test Male Connections
    • Rated to 345 Bar / 5000 PSI
    • Stainless Steel Construction

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  7. Ralston QTHA-EHS0 DP Transmitter Adapter Quick-Test Male x M8 x 1.25 Male Bleed Plug (Stainless Steel)

    Ralston QTHA-EHS0 DP Transmitter Adapter Quick-Test Male x M8 x 1.25 Male Bleed Plug (Stainless Steel)

    Connects Endress & Hauser or Equivalent Transmitter Bleed Ports to Ralston Quick-Test (QT / QS) Hoses or Female Adapters

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  8. Ralston QTHA-FLTS-HC-40 Quick-Test Male x Quick-Test Female In-Line Filter (345 Bar, Stainless Steel)

    Ralston QTHA-FLTS-HC-40 Quick-Test Male x Quick-Test Female In-Line Filter (345 Bar, Stainless Steel)

    • Ralston Quick-Test Male x Quick-Test Female Connections
    • Rated to 345 Bar / 5000 PSI
    • Stainless Steel Construction
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  9. Ralston QTHA-FRS0 DP Transmitter Adapter Quick-Test Male x 5/16"-24 UNF Male (Stainless Steel)

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

    Transmitter Bleed Port Adapter
    Suits Ralston Calibration Hoses

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  10. Ralston QTHA-HHSU Quick-Test Male Union (Stainless Steel)

Items 41 to 50 of 52 total

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

Set Descending Direction