End suction pumps are used in the hydronic systems of hotels, stores, theaters, and other large structures. The Bell & Gossett Series VSC pump shown in Figure 10-17 is a double suction unit characterized by a vertically split casing perpendicular to the pump shaft. It is used in hydronic heating and cooling systems, and for condenser water, cooling towers, refrigeration, and general service. These pumps have volutes that differ in design from the smaller circulators used in small to medium hydronic systems, and they are commonly installed at a 90° angle to the system piping with a lateral offset between the discharge and inlet ports.
