The Model DSR boiler feed pump is a multi-stage, ring section, centrifugal diffuser type pumps designed and optimized for low-NPSHA applications inherent to onshore industrial markets such as Waste-to-Energy. Multiple pump sections may be mounted onto a short, rigid, stainless steel shaft. This variability enables a high degree of control in achieving the best efficiency point for your particular systems’ conditions. The impellers are accurately keyed to the shaft, and the pump’s rotating assembly is supported on either end of the shaft by a set of high-speed precision bearings. Model “DSR” impeller, impeller inlets, diffuser, diffuser cover, wear rings and sleeves are all constructed of stainless steel.
The model “DSR” motor drive pump is driven by an at-speed induction motor. The motor and pump are mounted on common base plate with common lube system.
Motor Drive Model Features:
- Common baseplate
- Flexible disc-type coupling and coupling guard
- Multiple voltage options
- Pump speed control by variable frequency drive (VFD)
- Precision-balanced, flexible disc type coupling
- Water or air cooling system
- High motor efficiency, even under partial loads