Eastman TEFT Engineering [P] Ltd. Supplies Heavy Duty Process Metering Pump. Eastman TEFT Engineering [P] Ltd. Offers pumps and connectors. Heavy Duty Process Metering Pump has the continuous capacity control 0-100%, adjustable with pump at rest or in operation. Heavy Duty Process Metering Pump is provided with the feature of capacity adjustment system, differential type, with satellite and planetary gear system, with mechanical return stroke. The series name of the pump is DOXE.