General

Type LW pump is vertical single-stage single-suction volute centrifugal pump. It is used for circulating pumping power station and water drainage in mines, cities and farmlands. It is suitable for delivering clear water, rainwater, seawater and sewage etc. The temperature of liquid should be below 55℃.

Nomenclature

1200LW-23.5A

1200-Inlet diameter of pump is 1200mm

LW-Vertical single-stage single-suction volute centrifugal pump

23.5-The designed head is 23.5mm

A-The cut code of impeller diameter

Performance Range (Design point)

Capacity: 1.25~19m'/s,

Head: 18~130m

Construction Feature

Type LW pump is vertically installed with the inlet vertical downward and the outlet horizontal extending. pump foundation has two types: the single foundation and the double foundation. For single foundation, the pump and the motor is directly connected, but for double foundation, the pump and the motor is mounted in separate foundation and they are connected by driven shaft. The axial force of pump is usually borne by motor and it can also be designed to bear by pump checking bearing according to customer’requirements. Pump is directly driven by motor through rigid coupling or flexible coupling.

Pump adopts anti-abrasive structure and anti-wearing material; it can deliver muddy water with 15% sand. Pump adopts vice-vane to balance partial axial force of pump and reduce pressure. Shaft seal adopts packing seal, it can adopt shut down seal and lubricate guide bearing with exterior water for the medium with sand Pump uses rolling bearing which get lubricated by grease or dilute oil. The rotation of pump rotor is counter clockwise looking from the motor to the pump. It can also be designed clockwise.