Tsurumi’s small dewatering pump, the LB sequence, is designed for purposes the place house is tight, particularly construction. Secured by rope or chain, an LB can be used in purposes which involve slim pipes, small tanks, deep pits and in distant areas which are difficult to succeed in with larger equipment. The LB model has a totally symmetrical design with no protruding parts, allowing it to be lowered to unknown depths without any risk of snagging. With a diameter of only 187 mm, the pump’s round cross-section even suits into smaller filter pipes. There is also a model with a water stage sensor which is just some millimetres longer. The pump then controls itself routinely, switching on or off relying on the water stage. The LB presses water with dust particles as much as 6 mm in size by way of the housing, allowing optimum cooling of the motor. The models within the series pump 225–440 l/minute and to a most of 17.5 m. เกจวัดแรงดันแก๊สอาร์กอน weighs around 10 kg dry, the biggest round 30 kg.