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Pressure Calibration Hand Pumps :-
When calibrating pressure metering instruments including pressure gauges and pressure calibrators, it is essential that a stable pressure source of generating requisite pressure is available at hand. Polltech provides four hand operated pumps to fulﬁll this need. Model PSI–PP1, PSI–PP2, Model PSI–PP3 are pneumatic pumps and generate pneumatic pressure
up to 25 kg/cm 2 . They are also useful for generating vacuum up to 7 0/80 % of the atmospheric pressure. Model PSI –
HPP1 is a hydraulic pump and is used for generatin g high pressures up to 550 kg/cm 2 which are not possible by hand operated pneumatic pumps.
All four pumps are manually operated and require e nloectrical power making them useful for testing of mechanical and electronic pressure gauges even when power is unavailable.
Dual source of pressure and vacuum
Manually operated. Require no electrical power
Simple one hand operation
Coarse and ﬁne control for adjusting pressure es toir edd accuracy
Adjustable stroke to provide for over pressure protection
Pneumatic pumps for low pressures up to 25 kg/cm2
Hydraulic pumps for high pressure up to 550 kg/cm2