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This device is used to maintain cell pressure constant for a long duration and the system can be used in place of convensional constant pressure system using mercury posts where certain minimum heights are required. Problems like deairiation of pump, leakage of mercury etc. are eleminated 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 20 kg/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 feedback.
Salient Features
- Construction :
The system consists of an oil pump continuosly driven by an eletric 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 on transmit pressure to the cell. A hand pump provided facilitates priming and to maintain constant pressure during power failure.
Specifications :
Range 0-20 bar (0-20 kg/cm²)
Steps of Pressure 0.5 bar (0.5 kg/cm²)
Accuracy +0.5%
Electric Supply 230 Volts, Single Phase, 50 Hz, A.C.supply
Supplied complete with Pressure Guage, flow valves, connecting Pressure hose and set of weights to give maximum pressure of 20 bar (20 kg/cm²).
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DEAD WEIGHT TYPE OIL WATER CONSTANT PRESSURE SYSTEM - (DWO-01)
Russian