Applications: Designed for the supply of water to industrial plants and communities. They are used also for agricultural land irrigation and drainage. Capacity, Q = 400 m3/h, Head, H = 105 m, Speed of rotation, 1470 rpm, NPSHr = 4.5 m The pump units shall be rigidly anchored to the foundation, and piping shall be rigidly connected to the pumps. The TsN type pumps are centrifugal, horizontal, spiral with horizontal split casing, with transfer channels, two- or four-stage, with single-entry impellers symmetrically arranged on the shaft according to type BB1 or BB3 API 610. The pump rotor is supported by grease-lubricated roller bearings. Shaft seals are gland packing. The pump casing is the main part of the pumps, which consists of the lower and upper half of the casing, connected together by studs.