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CAT NO: DIDACTICNLE-Export-015026
Dead Weight Type Oil and Water Constant Pressure System.
This device is used to maintain cell pressure
constant for a long duration and the system can be used in place of
conventional constant pressure system using mercury pots where certain
minimum heights are required.
Problems like de-airation of pump, leakage
of mercury etc. is eliminated in this system . This unit is smaller in
volume and can be used in mobile laboratory also. This can maintain
pressure in the cell upto 20kg/cm sq. Pressure is maintained constant in
the system by a balancing calibrated weights on a spindle against a
column of oil, operating under constant feed back.
Construction:The
system consists of an oil pump continuously driven by an electric motor
during the test period. The internal components are housed in a strong
compact housing. The piston on which weights are kept rotates with
minimum friction. A transparent oil water vessel is provided to transmit
pressure to the cell. A hand pump provided facilitates priming and to
maintain constant pressure during power failure.
Specification:Range
0-20 bar(0-20kg/cm2 )Steps of pressure 0.5bar (0.5kg/cm2 )Accuracy +
0.5%Electric supply 230 V, Single Phase, 50 Hz, A.C. supply.Supplied
complete with pressure gauge, flow valves, connecting pressure hose and
set of weights to give maximum pressure of 20 bar (20 kg/cm2).
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