3.7.
Cooling-water data
Table 11 Water cooling system data
Description
Rating
Units
Maximum supply pressure
6.9
barg
100
psig
Maximum allowable system dif-
ferential pressure
1.5
bar
21.8
psi
Minimum required pressure dif-
ferential across supply and return
1.2
bar
17.4
psi
Supply temperature range
5 - 40*
°C
41 -104*
°F
Water type
Treated or non-corrosive
industrial
Maximum particle size
0.2
mm
2
Acidity
7.0 to 10.5
pH
Hardness
<250
ppm of CaCO
3
(<250 mg of
CaCO
3
per litre)
Total Dissolved Solids (TDS)
<1500
mg/l
Total Suspended Solids (TSS)
<10
mg/l
Specific conductivity
2000
m
S/cm
Materials in contact with the cool-
ing water
Stainless steel, Nitrile,
PTFE, brass, polyamide
and fluoroelastomer
Water inlet connection
G3/8 inch BSP female
Water outlet connection
G3/8 inch BSP female
* Maximum coolant temperatures may need to be reduced if Glycol or other
coolants are used dependent on the dilution and type.
07/2021 - ©Atlas Copco
Page 25
1950840208_A
Technical data
Содержание DWS 450 VSD+
Страница 1: ...Dry Screw Vacuum Pump DWS VSD INSTRUCTION MANUAL 1950840208_A Original instructions ...
Страница 132: ...14 Legal declarations ...
Страница 137: ...atlascopco com ...