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General description

Vertical multi-stage condensate pump with barrel is a new product based on the advanced technology which has been introduced from Hitachi Ltd. in Japan. It is used for handling condensate water in 100MW, 125MW(145MW), 200MW, 300MW, 600MW and 1000MW power stations and pumping other liquid that is physically and chemically similar to clear water as high suction head pump as well. The temperature of the liquid can not be over 80℃.

Performance range

Capacity:  170 ~ 2400m3/h

Head:  69 ~346m

Instruction of pump type

For example  CRB640(Ⅰ,Ⅱ, Ⅲ)—5

CR: Company code, means produced by CREDO PUMP

B: Double-suction for the first stage (single-suction for the next stage) screw guiding-vane centrifugal condensate pump.

640: nominal outer diameter of diffuser vane (mm).

I: shaft seal is mechanical seal.

II: pump itself carries axial thrust.

III: pump itself carries axial thrust, shaft seal uses mechanical seal.

5: Pump stage number.

Structure

There are 3 kinds’ types in construction for vertical condensate pump with barrel as follows:

(1)Type A: double-suction for the first stage guiding-vane type multi-stage centrifugal condensate pump.

(2)Type B: double-suction for the first stage screw guiding-vane type multi-stage centrifugal condensate pump.

(3)Type C: double-suction for the first stage screw mixed flow type multi-stage condensate pump.

The pump and motor are directly connected; pump axial thrust is carried by either motor or pump itself. The shaft seal is either packing seal or mechanical seal. 

The direction of rotation

The rotation of pump rotor is counter clockwise looking from the motor to the pump.

Material of main parts

Barrel casing:  Carbon steel Q235-A, stainless steel.

Impeller:  Stainless steel.

Shaft:    High-quality carbon steel No.45.

Pump casing:  Nodular cast iron No.QT450-10. 

Remind:

Please indicate the material of main parts in your inquiry or purchase contract. Any special requirement, please don’t hesitate to contact us.