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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. Crystal GaugeCalHP Hydraulic Vacuum / Pressure Gauge Comparator (1000 Bar)

    Crystal GaugeCalHP Hydraulic Vacuum / Pressure Gauge Comparator (1000 Bar)

    • -25" Hg to 1000 Bar / 15000 PSI Hydraulic Range
    • -25" Hg to 995 mbar / 14.4 PSI Pneumatic Range
    • Portable, Easy to Use & Faster Than a Deadweight Tester
    • Pivoting Manifold with Crystal CPF (7/16"-20 MP) Male Swivel Fittings
    • 1/4" NPT Female Gauge Adapter

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

    Ralston XHGV Hydraulic Pressure Hand Pump (345 Bar)

    • 5000 psi (350 bar)
    • XHGV pump
    • 1/4" female NPT gauge swivel
    • 3ft hose
    • 1/4" MNPT process connection XHGV-0000

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  3. Ametek T-620H Hydraulic Pressure Hand Pump (345 Bar)

    Ametek T-620H Hydraulic Pressure Hand Pump (345 Bar)

    • 345 Bar / 5000 PSI Range
    • 1/4" NPT Female Swivel Gauge Fitting
    • 1/4" NPT & BSPP Female Process Connections

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  4. Ralston Nitropak Portable Nitrogen Pressure Source (210 Bar)

    Ralston Nitropak Portable Nitrogen Pressure Source (210 Bar)

    • 210 Bar / 3000 PSI Range
    • Integrated Refillable Gas Cylinder
    • Ralston Quick-Test Male Pressure & Fill Port Connections
    • Optional NPT / BSPP Adapters & Hoses

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

    Ralston HPGV Hydraulic Pressure Hand Pump (210 Bar)

    • 3000 psi (210 bar) HPGV Hydraulic pump
    • 1/4" female NPT gauge swivel
    • 3ft hose
    • 1/4" MNPT process connection.

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  6. Ametek T-620 Hydraulic Pressure Hand Pump (210 Bar)

    Ametek T-620 Hydraulic Pressure Hand Pump (210 Bar)

    • 210 Bar / 3000 PSI Range
    • 1/4" NPT Female Swivel Gauge Fitting
    • 1/4" NPT & BSPP Female Process Connections

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  7. Ametek T-975 Pneumatic Vacuum / Pressure Hand Pump (40 Bar)

    Ametek T-975 Pneumatic Vacuum / Pressure Hand Pump (40 Bar)

    • Vacuum & Pressure Range: -28.5" Hg to 40 Bar / 600 PSI
    • Lightweight, compact design
    • Two outlet ports
    • Protected shuttle valve
    • Fine adjust sensitivity to 0.01 psi

    $1,128.00 ex GST
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  8. Imageworks Combo Pump 500 Pneumatic Vacuum / Pressure Hand Pump (35 Bar)

    Imageworks Combo Pump 500 Pneumatic Vacuum / Pressure Hand Pump (35 Bar)

    • Pneumatic Vacuum & Medium Pressure Hand Pump (-25" Hg to 35 Bar / 500 PSI)
    • Push button easily switches between vacuum and pressure
    • Pressure balanced vernier with ±0.01 PSI resolution

    $820.70 ex GST
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  9. Imageworks Combo Pump 300 Pneumatic Vacuum / Pressure Hand Pump (20 Bar)

    Imageworks Combo Pump 300 Pneumatic Vacuum / Pressure Hand Pump (20 Bar)

    • Pneumatic Vacuum & Medium Pressure Hand Pump (-25" Hg to 20 Bar / 300 PSI)
    •Rugged, anodised, aircraft-grade aluminium construction
    •Pressure balanced vernier with ±0.01 PSI resolution

    $755.00 ex GST
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  10. Ralston APGV Pneumatic Pressure Hand Pump (20 Bar)

    Ralston APGV Pneumatic Pressure Hand Pump (20 Bar)

    • Generates up to 300 psi
    • Precise fine adjustment
    • Quick disconnect adapter

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