LB Portable Dewatering Pumps

Portable Dewatering Pumps

Technical Parameters

Discharge Bore(mm)：50 (80)

Motor Output(kW)：0.48 - 1.5

Though it is a single-phase unit, the pump has the durability equivalent to three-phase drainage pumps, since the wear parts are made of abrasion-resistant materials. The top discharge, flow-thru design provides maximum motor cooling efficiency allowing continuous operation at low water levels and extended dry-run capability. Every LB model is slim design enough to be accommodated in an 8-inch pipe. The discharge direction is selectable between vertical and inclined, which prevents folding or bending of the discharge hose.

Anti-Wicking Cable Entry

Prevents water incursion due to capilary action should the cable sheath be damaged or the end of cablesubmerged. Also prevents moist air from infiltrating the motor housing and condensation from forming insidethe housing due to temperature differences between the housing and outside air.

Motor Protector

Miniature Thermal Protector (0.48kW and below)

Detects excess heat, therefore, protecting the pump against overheating and dry-running.

CircleThermal Protector (0.55kW and above)

Directly cuts the motor circuit if excessive heat builds up or overcurrent occurs in the motor.

Dual Inside Mechanical Seals with Silicon Carbide FaceInside Mechanical Seal with Silicon Carbide Face (FAMILY)

Isolated in the oil chamber where a clean, non-corrosive and abrasion-free lubricating environment ismaintained. Compared with the water-cooled outside mechanical seal, it reduces the risk of failure causedby dry-heating and adhering matter. The silicon carbide provides 5 times higher corrosion, wear and heatresistance than the tungsten carbide.

Oil Lifter

*Not available for FAMILY

Provides lubrication and cooling of the seal faces down to 1/3 of normal oil level, thus maintaining a stableshaft sealing effect and prolonging seal life longer. The Oil Lifter is Tsurumi original design.