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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 11 total

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  1. Ralston QTHA-4MB0 Quick-Test Male x 1/2" NPT Male (Brass)

    Ralston QTHA-4MB0 Quick-Test Male x 1/2" NPT Male (Brass)

    Suits Ralston Calibration Hoses

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  2. Ralston QTHA-4MB1 Quick-Test Male x 1/2" NPT Male (Brass, Check Valve)

    Ralston QTHA-4MB1 Quick-Test Male x 1/2" NPT Male (Brass, Check Valve)

    Suits Ralston Calibration Hoses

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  3. 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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  4. Ralston QTHA-4MS1 Quick-Test Male x 1/2" NPT Male (Stainless Steel, Check Valve)
  5. Ralston QTHA-4FB0 Quick-Test Male x 1/2" NPT Female (Brass)

    Ralston QTHA-4FB0 Quick-Test Male x 1/2" NPT Female (Brass)

    Suits Ralston Calibration Hoses

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  6. Ralston QTHA-6FB0 Quick-Test Male x 3/4" NPT Female (Brass)

    Ralston QTHA-6FB0 Quick-Test Male x 3/4" NPT Female (Brass)

    Suits Ralston Calibration Hoses

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  7. Ralston QTHA-4FS0 Quick-Test Male x 1/2" NPT Female (Stainless Steel)

    Ralston QTHA-4FS0 Quick-Test Male x 1/2" NPT Female (Stainless Steel)

    Suits Ralston Calibration Hoses

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  8. Ralston QTHA-4FS0-QD Quick-Test Male x 1/2" NPT Female Quick-Connect (Stainless Steel)
  9. Ralston QTHA-KIT4 Universal Quick-Test Hose & Adapter Kit (Brass)

    Ralston QTHA-KIT4 Universal Quick-Test Hose & Adapter Kit (Brass)

    Comprehensive Quick-Test to NPT, Tube & DP Transmitter Adapters Kit (Brass)

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  10. Ralston QTHA-KIT4-SS Universal Quick-Test Hose & Adapter Kit (Stainless Steel)

    Ralston QTHA-KIT4-SS Universal Quick-Test Hose & Adapter Kit (Stainless Steel)

    Comprehensive Quick-Test to NPT, Tube & DP Transmitter Adapters Kit (Stainless Steel)

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Items 1 to 10 of 11 total

per page
Page:
  1. 1
  2. 2

Set Descending Direction