Edwards GXS Series Instruction Manual page 30

Minimum flow rate required *
Pump
GXS250/2600
* All GXS dry pumping systems have a valve cooling system which will cause the coolant flow rate to
vary in response to pump load conditions.
states that the "minimum flow rate required" under worst
are open. Flow rates need to be increased and/or coolant temperatures reduced if Glycol or other
coolants are used dependent on the dilution type.
† The differential pressure values given are the minimum differential pressures required across the
water supply/return at the point of connection to the pump to achieve the desired flow when the
solenoid valves are open.
Table 13 Water consumption data (GXS450 only)
Ambient (°C)
40
30
20
Table 14 Water consumption data (GXS450/2600/4200)
Ambient (°C)
40
30
20
Table 15 Water consumption data (GXS750 only)
Ambient (°C)
40
30
20
M58800880_H - Technical data
Minimum required pressure differential across
I/min
7
Table: Water consumption data (GXS160/250/1750/2600)
40
15 SLM
1.8 bar dP
12 SLM
1.5 bar dP
10 SLM
1 bar dP
40
19 SLM
2 bar dP
16 SLM
1.5 bar dP
12 SLM
1 bar dP
40
19 SLM
2 bar dP
15 SLM
1.2 bar dP
12 SLM
1 bar dP
Page 26
supply and return†
bar
1
‑ case pump load conditions when all valves
Water Temperature (°C)
30
12 SLM
1.5 bar dP
12 SLM
1.5 bar dP
10 SLM
1 bar dP
Water Temperature (°C)
30
16 SLM
1.5 bar dP
16 SLM
1.5 bar dP
12 SLM
1 bar dP
Water Temperature (°C)
30
15 SLM
1.2 bar dP
15 SLM
1.2 bar dP
12 SLM
1 bar dP
20
10 SLM
1 bar dP
10 SLM
1 bar dP
10 SLM
1 bar dP
20
12 SLM
1 bar dP
12 SLM
1 bar dP
12 SLM
1 bar dP
20
12 SLM
1 bar dP
12 SLM
1 bar dP
12 SLM
1 bar dP