Marine Fuel Oil Transfer Pump to import India

We are the technical managers for the Subject vessel which is an oil tanker & is equipped with Bornemann pumps for the transfer of Gas oil. We are looking at upgrading the pump to a higher capacity of approx. 150 m3/hr, and if possible, maintaining the same motor and VFD drive unit.
Please let us know the available options for upgrading the existing pump with the cost & delivery period