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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.
8 Item(s)
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Ralston DV0V Pneumatic Vacuum Hand Pump (-25" Hg)
• Pneumatic Vacuum Hand Pump (-25" Hg / -635mm Hg)
• Fine adjust vernier with ±0.01 PSI resolution
• Complete with hose & 1/4in MNPT connector
• Gauge Adapter Options Available (DV0V-1MBA / DV0V-2MBA / DV0V-2FBA)$590.00 ex GSTSee More Information -
Ralston DP0V Pneumatic Pressure Hand Pump (9 Bar)
• Pneumatic Low Pressure Hand Pump (9 Bar / 125 PSI)
• Fine adjust vernier with ±0.01 PSI resolution
• Complete with hose & 1/4in MNPT connector
• Gauge Adapter Options Available (DP0V-1MBA / DP0V-2MBA / DP0V-2FBA)$590.00 ex GSTSee More Information -
Ralston DPPV Pneumatic Vacuum / Pressure Hand Pump (9 Bar)
• Pneumatic Vacuum & Low Pressure Hand Pump (-23" Hg to 9 Bar / 125 PSI)
• Fine adjust vernier with ±0.01 PSI resolution
• Complete with hose & 1/4in MNPT connector
• Gauge Adapter Options Available (DPPV-1MBA / DPPV-2MBA / DPPV-2FBA)$810.00 ex GSTSee More Information -
Ralston DCAP Pneumatic Pressure Test Pump (45 Bar)
See More Information• 0 to 650 PSI / 45 Bar Range• Precise 0.001 PSI Fine Adjust Resolution• Quick-Test Leak-Free Connections• Durable Aluminium & Steel Construction
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Ralston DCAP-PV Pressure / Vacuum Hand Pump (-28.5 Hg / 45 bar)
See More Information• -28.5 Hg to 650 PSI / 45 Bar Range• Precise 0.001 PSI Fine Adjust Resolution• Quick-Test Leak-Free Connections• Durable Aluminium & Steel Construction
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Ralston Nitropak Portable Nitrogen Pressure Source (210 Bar)
See More Information• 210 Bar / 3000 PSI Range
• Integrated Refillable Gas Cylinder
• Ralston Quick-Test Male Pressure & Fill Port Connections
• Optional NPT / BSPP Adapters & Hoses -
Ralston QTHP-0000 Hydraulic Hand Pump (350 Bar)
• Pressure range - 0 to 5,000 psi max. (350 bar)
• Fast, High Pressure Priming
• Polymer based reservoir (not glass) for increased safety• Media: Low Viscosity Mineral based Hydraulic Oil, Distilled water$810.00 ex GSTSee More Information -
Ralston XTHP-0000 Hydraulic Hand Pump (700 Bar)
• Pressure range - 0 to 10,000 psi max. (700 bar)
• Fast, High Pressure Priming
• Polymer based reservoir (not glass) for increased safety
• Media: Low Viscosity Mineral based Hydraulic Oil, Distilled water$1,610.00 ex GSTSee More Information
8 Item(s)