G&L Pumps
Series A-C 9100 60 Hz
Large Horizontal Split Case Base Mounted – Double Suction
Pump Performance Curves
Curves
GL-570 R1
G&L Pumps
SERIES A-C 9100 - 60 Hz
TABLE OF CONTENTS
Useful Pump Formulas…………………………………………………………………………………………………………… 2
Performance Curves……………………………………………………………………………………………………………… 3
1800 RPM Pump Curves………………………………………………………………………………………………………… 4-6
1200 RPM Pump Curves…………………………………………………………………………………………………………7-10
900 RPM Pump Curves……………………………………………………………………………………………………… 11-12
USEFUL PUMP FORMULAS
Head (feet) x Specific Gravity
Pressure (PSI) =
2.31
Head (feet) =
Vacuum
=
(in. of mercury) Horsepower
(brake)
=
Pressure (PSI) x 2.31
Specific Gravity
Dynamic Suction Lift (feet) x .883
x Specific Gravity
Horsepower =
GPM x Head (feet) x Specific Gravity
(water)
3960
Efficiency
=
(pump)
Horsepower (water) x 100 per cent
Horsepower (brake)
NPSH
(available)
Positive Factors – Negative Factors
=
GPM x Head (feet) x Specific Gravity
3960 x Pump Efficiency
AFFINITY LAWS: Effect of change of speed or impeller diameter on centrifugal pumps
GPM Capacity
Impeller Diameter Change
Speed Change
Q2 = D2 Q1
D1
Q2 = RPM2 Q1
RPM1
Feet Head
H2 =
H2 =
()
D2
D1
2
BHP
H1
( )
RPM2
RPM1
2
H1
Where Q = GPM, H = Head, P = BHP, D = Impeller Diameter, RPM = Pump Speed
PAGE 2
P2 =
P2 =
()
D2
D1
3
P1
( )
RPM2
RPM1
3
P1
G&L Pumps
SERIES A-C 9100 - 60 Hz
1770 RPM
750
200
600
500
12x8x22L
400
100
75
50
TOTAL HEAD IN FEET
TOTAL HEAD IN METERS
150
14x10x20L
300
16x12x23
250
200
12x8x22M
150
40
16x14x17
14x10x20S
100
30
80
20
1000
1500
2000
4000
3000
5000
10000
CAPACITY US GPM
400
300
500
700
1000
1500
2000
3000
CAPACITY IN CUBIC METERS PER HOUR
1180 RPM
400
100
300
50
40
TOTAL HEAD IN FEET
TOTAL HEAD IN METERS
75
x1
4x
16x12x23
23
150
14x10x20L
100
12x8x22M
80
20
14x10x20S
60
15
18
12x8x22L
200
50
16x14x17
40
10
30
500
1500
1000
2000
3000
4000
5000
10000
15000
CAPACITY US GPM
150
200
300
400
500
750
1000
1500
2000
3000
CAPACITY IN CUBIC METERS PER HOUR
PAGE 3
G&L Pumps
SERIES A-C 9100 - 60 Hz
1800 RPM PUMP CURVES
PAGE 4
G&L Pumps
PUMP 12x8x22M SERIES A-C 9100
G&L Pumps
PUMP 12x8x22L SERIES A-C 9100
G&L Pumps
SERIES A-C 9100 - 60 Hz
1800 RPM PUMP CURVES
G&L Pumps
G&L Pumps
PUMP 14x10x20S SERIES A-C 9100
PUMP 14x10x20L SERIES A-C 9100
PAGE 5
G&L Pumps
SERIES A-C 9100 - 60 Hz
1800 RPM PUMP CURVES
PAGE 6
G&L Pumps
PUMP 16x12x23 SERIES A-C-9100
G&L Pumps
PUMP 16x14x17 SERIES A-C 9100
G&L Pumps
SERIES A-C 9100 - 60 Hz
1200 RPM PUMP CURVES
G&L Pumps
PUMP 12x8x22M SERIES A-C 9100
G&L Pumps
PUMP 12x8x22L SERIES A-C 9100
PAGE 7
G&L Pumps
SERIES A-C 9100 - 60 Hz
1200 RPM PUMP CURVES
G&L Pumps
G&L Pumps
PAGE 8
PUMP 14x10x20S SERIES A-C 9100
PUMP 14x10x20L SERIES A-C 9100
G&L Pumps
SERIES A-C 9100 - 60 Hz
1200 RPM PUMP CURVES
G&L Pumps
PUMP 16x12x23 SERIES A-C 9100
G&L Pumps
PUMP 16x14x17 SERIES A-C 9100
PAGE 9
G&L Pumps
SERIES A-C 9100 - 60 Hz
1200 RPM PUMP CURVES
G&L Pumps
PAGE 10
PUMP 18x14x23
SERIES A-C 9100
G&L Pumps
SERIES A-C 9100 - 60 Hz
900 RPM PUMP CURVES
G&L Pumps
PUMP 14x10x20S SERIES A-C 9100
G&L Pumps
PUMPS 16x12x23 SERIES A-C 9100
PAGE 11
900 RPM PUMP CURVES
G&L Pumps
PUMP 16x14x17 SERIES A-C 9100
G&L Pumps
PUMP 18x14x23 SERIES A-C 9100
Xylem Inc.
2881 East Bayard Street Ext., Suite A, Seneca Falls, NY 13148
Phone: (800) 453-6777 • Fax: (888) 322-5877
www.gouldswatertechnology.com
G&L Pumps is a trademark of Xylem Inc. or one of its subsidiaries.
© 2013 Xylem Inc. GL-570 R1 June 2014

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