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General Description

CRDL series pump is vertical multi stage single suction segmental centrifugal pump. It can delivery clear water or other liquid which is physically or chemically similar to clear water. The temperature of the liquid is 0 ℃-80 ℃. The inlet pressure of pump should be less than 0.6MPa.

CRDL series pump is vertically installed with advantage of compact structure, low noise and space saving. It is widely used for feeding water in high buildings in city, heat supply system, fire control system, air conditioning system and water supply systems.

Performance range

Capacity: 8-432m³/h

Head: 20-280m

Instruction of pump type

For example:65CRDL32-15X5

65：Inlet diameter of the pump is 65mm

CR：Company code, means produced by CREDO PUMP

DL：Vertical multi stage centrifugal pump

32：Rate flow 32m³/h

15：Rate head of each stage 15m

5： Pump stage is 5

Structure

The inlet is located in suction stage under pump; the outlet is located in discharge stage above pump. Both of the inlet and outlet are horizontally mounted. The outlet can be installed with the angle 90°,180°and 270°against the inlet according to users’ requirement (usually the inlet and outlet are codirectional ) . The main part of pump consists of suction stage, middle stage, discharge stage, diffusor, bearing frame, shaft, impeller, balance drum and shaft sleeves. The axial force is balanced by balance kettle and the remaining axial force is borne by upper radial thrust force ball bearing. The sealing ring is separately mounted in suction stage and middle stage to prevent high pressure water from leaking.

The radial thrust force ball bearing is mounted above shaft and the sliding bearing which gets lubricated by grease is mounted under shaft. Shaft seal is available with soft packing seal and mechanical seal, and the seals can be lubricated and cooled by pressure water in balance chamber. The pump is driven by vertical motor. View from motor end, the rotating direction of pump is counter clockwise.