Compressor Unit Instruction Manual
(*) The water pressure drop (ΔP) means differential pressure between cooling
water supply pressure and return pressure.
Figure 3-2 Cooling Water Requirement
A dashed arrow (→) in the graph shows the minimum required water flow rate
(9L/min.) and water pressure drop (0.06MPa) at the water supply temperature of
30 ℃.
EXAMPLE
0 5 10 15
0 5 10 15
Line Pressure Drop
Water PressureΔP(*)(MPa)
0.2
0.1
0
0.17
0.02
0.06
0
5
10
15
20
25
30
32
Cooling Water
Temperature(℃)
Allowable Operating Range
Flow Rate(L/min)
ULVAC CRYOGENICS INCORPORATED 3-3