Makharia Machineries [Pvt] Ltd offers Closed Couple Progressing Cavity Pump. Makharia Machineries [Pvt] Ltd supplies various types of electric motors, worm and helical gearbox, water application and special application pumps, power correction capacitors, inverter drives, transformers, generators and cables etc. Closed Couple Progressing Cavity Pump is transfers fluid by means of the progress, through the pump, of a sequence of small, fixed shape, discrete cavities, as its rotor is turned. This leads to the volumetric flow rate being proportional to the rotation rate and to low levels of shearing being applied to the pumped fluid.