"For applications requiring higher flow and head pressures, Bell & Gossett provides an entire range of booster pumps. The designs of these pumps are based on three-part configuration which offers complete field repairability and compact construction. All Bell & Gossett boosters are equipped with the incomparable B&G manufactured motor for quiet and efficient operation.
Operational limits:
These pumps are designed to pump liquids compatible with their iron or bronze body construction. This pump line delivers maximum capacities from 100 GPM to 150 GPM. Unless special provisions have been made by Bell & Gossett, the operational limits for Series 2½”, LD3, HD3, PD35, PD37, PD38 and PD40 Pumps are listed below."