TFS(1) Disassembly and inspection are possible without removal of the suction and discharge piping.(2) For shaft sealing, various mechanical seals are available in addition to gland packing.(3) The clearance before the impeller can be adjusted with ease by laminating adjustment sheets and shims.TLS(1) Since the casing has a structure dividable into three parts, easy assembly and disassembly of the pump is possible without removal of the casing from the discharge piping.(2) The clearance between the impeller and the front side plate can be adjusted from the outside without disassembly of the pump. Accordingly, replacement of the impeller is possible in a short time.(3) No damage is given to the shaft due to the use of a labyrinth seal.(4) For shaft sealing, various mechanical seals are available in addition to gland packing.