Midea SMK-D140HHN1-3

High Temperature Hydro Module
42 202003
Midea
VR High Temperature Hydraulic Module
9 Pump Model Selection
 The water pump should meet the flow requirements of the hydraulic module. The rated flow of the hydraulic module
is 2.4 m3/h, while the allowed flow range is [1.2, 2.9] m3/h.
 The water pump model is based on the calculation of the water resistance and pipe resistance of the hydraulic module.
The hydraulic module fluid pressure is as shown in the following figure.
For example:
Assume that the performance curve of the selected water pump is as shown in the black figure. When total water resistance
in the water system is P1, the flow rate is Q1. When Q1 is within the allowed range of the hydraulic module, the water pump
is suitable. When Q1 is greater than 2.9 m3/h, water pump capacity can be decreased. When Q2 is less than 1.2 m3/h, the
water pump capacity should be increased.
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0.50 1.00 1.50 2.00 2.50 3.00 3.50
ESP [kPa]
flow [m3/h]
Fluid pressure [KPa]
P1
Flow rate m³/h
P0
Q1
Available flow range
1.2m3/h~2.9m3/h
Hydraulic module fluid pressure