MAS-GRUP - Model UL-FM YNM 525-825-1531 -End Suction Centrifugal Fire Pumps

These are end suction, single stage centrifugal pumps. These three pumps, YNM 525, YNM 825 and YNM 1531 are used for flow rates ranging between 50 and 1250 gpm. The main pump dimensions are compatible with DIN 24256. The pump flanges are designed according to UL standards ANS/ASME B16.1 Class 250. The pump performances are compatible with UL and FM standards. The single suction, closed type impeller is dynamically balanced against the thrust by use of back wear rings. Shaft leak prevention is provided by 5 unit soft packing according to UL448 requirements. The parts inside the pumps that are in contact with water, such as bolts or bolt screws, are made of non-corrosive materials.