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Comparators & Hand Pumps

Field calibration of pressure instruments often requires a portable source of stable pressure. We have hand operated pneumatic pumps capable of pressures up to 4500 kPa / 650 PSI, with hydraulic options up to 1,000 Bar / 15,000 PSI. We also supply a wide range of regulators, valves, controllers and manifolds to allow precise pressure control of compressed air or nitrogen in your workshop or laboratory.

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  1. Ralston Nitropak Portable Nitrogen Pressure Calibration Source (210 Bar)

    Ralston Nitropak Portable Nitrogen Pressure Calibration Source (210 Bar)

    • 210 Bar / 3000 PSI Range
    • Integrated Refillable Gas Cylinder
    • Ralston Quick-Test Male Pressure & Fill Port Connections
    • Optional NPT or BSPP Gauge Adapters & Process Connections
    • Optional 1m & 2m Low Volume Quick-Test Hoses

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  2. Ralston XHGV Hydraulic Pressure Hand Pump (345 Bar)

    Ralston XHGV Hydraulic Pressure Hand Pump (345 Bar)

    Hydraulic High Pressure Hand Pump with Swivel Gauge Adapter (345 Bar / 5000 PSI)

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  3. Ralston HPGV Hydraulic Pressure Hand Pump (210 Bar)

    Ralston HPGV Hydraulic Pressure Hand Pump (210 Bar)

    Hydraulic High Pressure Hand Pump with Swivel Gauge Adapter (210 Bar / 3000 PSI)

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  4. Ralston APGV Pneumatic Pressure Hand Pump (20 Bar)

    Ralston APGV Pneumatic Pressure Hand Pump (20 Bar)

    Pneumatic Medium Pressure Hand Pump with Swivel Gauge Adapter (20 Bar / 300 PSI)

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  5. Ralston AP0V Pneumatic Pressure Hand Pump (20 Bar)

    Ralston AP0V Pneumatic Pressure Hand Pump (20 Bar)

    Pneumatic Medium Pressure Hand Pump (20 Bar / 300 PSI)

    $487.00+GST
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