CDL series Vertical Inline Pump / Vertical Multistage Pump / Jockey pump are widely used for water boosting in fire fighting system, high building water supply system. It is provided for transferring clear water or other liquid with physically and chemically similar to clear water. The temperature of the liquid generally is below 120 deg C. 







 

Material of flow passage components:
The vertical multistage centrifugal pump / jockey pumps could be customized with different material, main material configuration followed :

Instruction of series Vertical Multistage Pump for fire fighting (jockey pump) model
For example 65DL16X5
65: Inlet diameter (mm).
DL: series Vertical Multistage Pump 
DLR :series Vertical Multistage Pump for hot water.
16:Single-stage head (m).
5:The number of stages. The total head is 16x5=80m.





Structure
The DL series Vertical Multistage Pump / Jockey pump for fire fighting are vertically mounted. The inlet located at upper side of the pump, the outlet located at underside, both are at horizontal direction. Be able to increase the number of the stages according to the head. Depend on installing condition the outlet can rotate 90, 180 and 270 degrees to adjust the direction of outlet. The axial forces of pump are balanced by balancing drum. The pump has the features of compact structure, low noise and space-saving. The shaft seal can be either packing seal or mechanical seal.

The materials of medium-contacting parts
Suction casing, stage casing, discharge casing, vane, impeller are made of cast iron, .
The material of shaft is high--quality carbon steel.
If the customers have special requirement for materials, consult with manufacturer.