Kalsi metal works has designed and offers monoblock centrifugal pumps [1500 rpm synchronous]. These pumps are three phase, 4 pole monoset pumps, which are single suction pumps, designed and built as a complete unit on one shaft, thereby eliminating separate pump shaft, pump bearing and coupling. This design makes pump compact, light in weight and simple. Besides this they are simple, durable, economical and efficient. Iso 9079-1989 certifies kalsi pumps. Specifications of pumps are: 350 - 440 volts 50 hz ac supply; class of insulation "a"