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WSHP-SVX01L-EN 99
Water Pressure Drop
Table 51, p. 99 should be used to define feet of head/
pressure drop. Please note the feet of pressure (ft/head)
provided is at ARI/ISO standard.
To calculate feet of head, when using gauges that read in
PSIG, multiply PSI by 2.31.
Table 51. Cooling water pressure drops (WPD) in feet of
head for GE units
Unit Size
(60 Hz)
Unit Size
(50 Hz) EWT °F GPM
Ft.
Pressure
GEH006 — 86 1.8 3.9
GEH009 GEH006 86 2.1 3.7
GEH012 GEH009 86 2.8 3.8
GEH015 GEH012 86 3.5 5.4
GEH018 GEH015 86 4.2 6.8
GEH024 GEH018 86 5.6 13.2
GEH030 GEH024 86 7.0 11.1
GEH036 GEH030 86 8.4 11.5
GEH042 GEH036 86 9.8 13.6
GEH048 GEH042 86 11.2 6.8
GEH060 GEH048 86 14.0 12.3
— GEH060 86 14.0 11.4
GEV006 — 86 1.8 3.0
GEV009 GEV006 86 2.1 3.9
GEV012 GEV009 86 2.8 3.8
GEV015 GEV012 86 3.5 5.3
GEV018 GEV015 86 4.2 6.3
GEV024 GEV018 86 5.6 12.9
GEV030 GEV024 86 7.0 12.2
GEV032 — 86 7.5 9
GEV036 GEV030 86 8.4 12.5
GEV040 — 86 9.3 12.9
GEV042 GEV036 86 9.8 14.5
GEV048 GEV042 86 11.2 5.7
GEV060 GEV048 86 14.0 12.0
— GEV060 86 14.0 10.8
Table 52. Cooling water pressure drops (WPD) in feet of
head for EX units
Unit Size
(60 Hz)
Unit Size
(50 Hz)
EWT °F GPM
Ft.
Pressure
EXH018 — 86 4.2 4.1
EXH024 — 86 5.6 6.1
EXH030 — 86 7 9.2
EXH036 — 86 8.4 5.5
EXH042 — 86 9.8 7.8
EXH048 — 86 11.2 8.2
EXH060 — 86 14 7.2
EXH070 — 86 15.4 6.3
EXV018 — 86 4.2 3.7
EXV024 — 86 5.6 6.5
EXV030 — 86 7 8.5
EXV036 — 86 8.4 6.3
EXV042 — 86 9.8 8.5
EXV 48 — 86 11.2 7.9
EXV060 — 86 14 7.4
EXV070 — 86 15.4 6.6
Table 53. Heating water pressure drops (WPD) in feet of
head for GE units
Unit Size
(60 Hz)
Unit Size
(50 Hz) EWT °F GPM
Ft.
Pressure
GEH006 — 68 1.8 4.2
GEH009 GEH006 68 2.1 3.9
GEH012 GEH009 68 2.8 4.1
GEH015 GEH012 68 3.5 5.7
GEH018 GEH015 68 4.2 7.2
GEH024 GEH018 68 5.6 14
GEH030 GEH024 68 7.0 11.8
GEH036 GEH030 68 8.4 12.1
GEH042 GEH036 68 9.8 14.5
GEH048 GEH042 68 11.2 7.2
GEH060 GEH048 68 14.0 13.1
— GEH060 68 14.0 12.1
GEV006 — 68 1.8 3.2
GEV009 GEV006 68 2.1 4.2
GEV012 GEV009 68 2.8 4.1
GEV015 GEV012 68 3.5 5.6
GEV018 GEV015 68 4.2 6.7
GEV024 GEV018 68 5.6 13.7
GEV030 GEV024 68 7.0 12.9
GEV032 — 68 7.5 9.6
GEV036 GEV030 68 8.4 13.2
GEV040 — 68 9.3 13.7
GEV042 GEV036 68 9.8 15.4
GEV048 GEV042 68 11.2 6.1
GEV060 GEV048 68 14.0 12.7
— GEV060 68 14.0 11.5
Table 52. Cooling water pressure drops (WPD) in feet of
head for EX units (continued)
Unit Size
(60 Hz)
Unit Size
(50 Hz) EWT °F GPM
Ft.
Pressure