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Ralston Instruments

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    DP0V

    $446.46

    DP0V (125 psi / 8.6 bar) pump, no gauge adapter, 3ft hose, 1/4" MNPT process connection

    The ideal solution for very precise low pressure calibration or differential pressure testing using an external pressure calibrator as the reference.

    • Light weight, compact pump generates up to 125 psi (8.6 bar) with ease
    • Large volume fine adjustment piston provides precise control, even at very low pressures
    • Modular design makes field maintenance quick and easy
    • Precisely vent pressure with soft seated bleed valve
    • Two outlet ports provide connections for both pressure reference and for device under test thus eliminating a tee
    • Low volume Quick-test hose, gauge adapter and process connection can be attached to pump without thread sealant or a wrench
    • Rugged, all metal construction reduces pressure changes due to temperature fluctuations
    • Made in U.S.A.

    Item Includes

    • Hand Pump - DP0V Assembly (DP0V)
    • Hose - Quick-test 6900 psi hose, brass hose ends, 3 ft (92 cm) long (QTQT-HOS-3ft)
    • Hose Adapter - 1/4" male NPT x male Quick-test, no check-valve, brass (QTHA-2MB0)
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    Quick-test Hoses

    $56.96 – $702.40
    Microbore hoses that provide a very quick, low volume, high pressure way of connecting to any pressure instrumentation, hand pump, calibration source or device under test
    • Low volume reduces the pumping effort or compressed gas usage in pressure calibration
    • No thread sealant required – connect to adapters without wrenches, thread sealant or thread tape
    • Bubble tight connections to 6900 psi (475 bar) with no moving parts reduces maintenance to almost zero
    • Hose is hard to break and very flexible
    • Adapt from hose to virtually any device under test with only one connection
    • Silver color dramatically reduces the effect that changing temperature has on pressure stability
    • A corrosion resistant strain-relief on each hose end reduces wear and dramatically increases hose life
    • Hose is excellent for inert gas applications (except Helium and Argon)
    • Hose is pin-pricked for use in Natural Gas applications
    • Made in U.S.A.
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    Quick-test XT Hoses

    $153.10 – $1,102.72
    10,000 psi (689 bar) working pressure Microbore hoses that provide a very quick, low volume, high pressure way of connecting to any pressure instrumentation, hand pump, calibration source or device under test
    • Low volume reduces the pumping effort or compressed gas usage in pressure calibration
    • No thread sealant required – connect to adapters without wrenches, thread sealant or thread tape
    • Bubble tight connections to 10000 psi (689 bar) with no moving parts reduces maintenance to almost zero
    • Hose is hard to break and very flexible
    • Adapt from hose to virtually any device under test with only one connection
    • A corrosion resistant strain-relief on each hose end reduces wear and dramatically increases hose life
    • Hose is not recommended for Helium or Argon applications
    • Hose is pin-pricked for use in Natural Gas applications
    • Quick-test XT hoses are NOT compatible with QTHA adapters. Please use XTHA adapters
    • Made in USA
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    NPT Male Quick-test Adapters

    $12.40 – $69.59
    Connects Female NPT to Quick-test hoses with brass or stainless steel hose ends.
    • Ideal for connecting to pressure transmitters or other devices under test using thread sealant
    • Quickly connect and disconnect Quick-test hoses for testing, calibrating and sampling
    • Made in USA
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    NPT Male Quick-connect Adapters

    $74.41 – $107.65
    Make a bubble-tight seal on any Female NPT pressure device without using thread sealant or a wrench.
    • A unique design allows connection to standard female NPT ports using a pressure-assisted o-ring seal
    • Pressure helps to seal the fitting better
    • Stainless steel construction
    • Made in USA
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    NPT Male Quick-test XT Adapters

    $53.64 – $68.67
    Connects Female NPT to Quick-test XT 10,000 psi hoses
    • Ideal for connecting to pressure transmitters or other devices under test using thread sealant
    • Quickly connect and disconnect Quick-test hoses for testing, calibrating and sampling
    • Note that these are not compatible with QT or QS hoses. Please use Quick-test XT hoses
    • Made in USA
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    NPT Male Quick-test Fittings

    $24.23 – $86.20
    A removable cap provides easy access to connect a Quick-test hose to the process for calibration purposes and is easily sealed bubble-tight again when calibration is complete
    • Connect to pressure transmitters, EFMs, Flow Computers and other NPT devices under test using thread sealant for a permanent connection
    • A Cap and chain makes calibration easy and quick by connecting and disconnecting a hose without a wrench or thread sealant
    • Made in USA
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    NPT Male Quick-connect Fittings

    $93.29 – $121.35
    Make calibrating pressure transmitters a snap by eliminating the need for thread sealant or wrenches when connecting to any female NPT connection
    • A unique design allows connection to standard female NPT ports using a pressure-assisted o-ring seal
    • Pressure helps to seal the fitting better
    • A Cap and chain makes calibration easy and quick by connecting and disconnecting a hose without a wrench or thread sealant
    • Stainless steel construction
    • Made in USA
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    NPT Male Quick-test XT Fittings

    $89.06 – $90.60
    Connects Female NPT to Quick-test XT 10,000 psi hoses for permanent installation
    • Connect to pressure transmitters, EFMs, Flow Computers and other NPT devices under test using thread sealant for a permanent connection
    • Cap and chains make calibration easy and quick by connecting and disconnecting without a wrench or thread sealant
    • Note that these are not compatible with QT or QS hoses. Please use Quick-test XT hoses
    • Made in USA
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    NPT Male Quick-test Pressure Calibrator Adapters

    $18.84 – $50.84
    Quickly connect a pressure calibrator or other pressure device with Female NPT connections to Ralston hand pumps or nitrogen calibration equipment
    • Connect to any pressure calibrator or pressure module with Female NPT connections
    • Allows the calibrator and pressure source to be easily disconnected and stored separately
    • Made in USA
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    NPT Male Quick-test XT Pressure Calibrator Adapters

    $58.13 – $60.94
    Quickly connect a pressure calibrator or other pressure device with Female NPT connections a to Ralston hand pump or nitrogen calibration equipment to 10,000 psi
    • Connect to any pressure calibrator or pressure module with Female NPT connections
    • Allows the calibrator and pressure source to be easily disconnected and stored separately
    • Note that these are not compatible with QT or QS hoses. Please use Quick-test XT hoses
    • Made in USA
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    NPT Female Quick-test Adapters

    $15.17 – $78.48
    Connect a Quick-test hose to a pressure gauge or any device with a male NPT connection using thread sealant and a wrench
    • Connect to pressure gauges with NPT connections
    • Adapt to a wide range of Male NPT process connections
    • Made in USA
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    NPT Female Quick-test XT Adapters

    $54.93 – $68.67
    Connect a Quick-test XT hose to an NPT pressure gauge or any Male NPT device using thread sealant and a wrench
    • Connect to pressure gauges with NPT connections
    • Adapt to a wide range of Male NPT process connections to 10,000 psi
    • Note that these are not compatible with QT or QS hoses. Please use Quick-test XT hoses
    • Made in USA
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    NPT Female Quick-test Gauge Adapters

    $21.03 – $50.84
    Connect to a pressure gauge or other device with Male NPT connections to a Ralston hand pump or nitrogen calibration device
    • Install with thread tape once onto any male NPT pressure gauge then use the Quick-test connection to quickly connect or disconnect from any Ralston hand pump, nitrogen calibration device or other Quick-test adapter
    • Saves the threads on a pressure gauge by not needing to make and remake the connection with thread sealant
    • Made in USA
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    NPT Female Quick-test XT Gauge Adapters

    $60.27
    Connect Male NPT pressure gauge or other Male NPT device to a Ralston hand pump or nitrogen calibration device to create one side of a quick-disconnect to 10,000 psi
    • Install with thread tape once onto any male NPT pressure gauge then use the Quick-test connection to quickly connect or disconnect from any Ralston hand pump, nitrogen calibration device or other Quick-test adapter
    • Saves the threads on a pressure gauge by not needing to make and remake the connection with thread sealant
    • Note that these are not compatible with QT or QS hoses. Please use Quick-test XT hoses
    • Made in USA
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    NPT Female Quick-connect Adapters

    $67.73 – $119.36
    Connect Quick-test hoses to a male NPT pressure gauge. It allows one to connect a hose to a pressure gauge, calibrate it and remove it without a wrench or thread sealant.
    • A unique design allows connection to any male NPT pressure gauge connection using a pressure-assisted o-ring seal
    • Pressure helps to seal the fitting better
    • Stainless steel construction
    • Made in USA

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