300 Series End Suction
1800 RPM Performance Curves Enclosed Impellers
Curve No.: CS-15101
American-Marsh Pumps Size: 1.25x2-5 RESpeed: 1750 rpm09/03/02
ft
US gpm
NPSHr
bhp
10 20 30 40 50 60
0
8
16
24
32
40
0
4
8
0.4
0.8
47
47
40
40
35
35
30
30
255.5"
4.75"
4"
Curve No.: CS-15103
American-Marsh Pumps Size: 1.25x2-7 RESpeed: 1750 rpm09/03/02
ft
US gpm
NPSHr
bhp
8 16 24 32 40 48 56 64 72
0
20
40
60
80
100
0
5
10
0.8
1.6
48
48
40
40
35
35
306.875"
6"
5"
Curve No.: CS-15105
American-Marsh Pumps Size: 1.25x2-8 RESpeed: 1750 rpm09/03/02
ft
US gpm
NPSHr
bhp
10 20 30 40 50 60 70 80 90
30
40
50
60
70
80
0
8
16
2
4
51
51
50
50
48
48
46
46
43
43
4035308.375"
7.625"
6.5"
Curve No.: CS-15107
American-Marsh Pumps Size: 1.25x2-10 RESpeed: 1750 rpm09/03/02
ft
US gpm
NPSHr
bhp
20 40 60 80 100
0
25
50
75
100
125
0
8
16
4
8
41
41
39
39
37
37
35
35
33302510.375"
9.25"
8"
300 SERIES REC/REF ENCLOSED PERFORMANCE CURVES - 1800 RPM
300 SERIES REC/REF ENCLOSED PERFORMANCE CURVES - 1800 RPM
300 SERIES REC/REF ENCLOSED PERFORMANCE CURVES - 1800 RPM
300 SERIES REC/REF ENCLOSED PERFORMANCE CURVES - 1800 RPM
Curve No.: CS-15109
American-Marsh Pumps Size: 1.5x2.5-5 RESpeed: 1750 rpm09/03/02
ft
US gpm
NPSHr
bhp
25 50 75 100 125 150
0
8
16
24
32
40
0
8
16
0.8
1.6
65
65
60
60
55
55
50
50
45
45
5.5"
4.75"
4"
Curve No.: CS-15111
American-Marsh Pumps Size: 1.5x2.5-7 RESpeed: 1750 rpm09/03/02
ft
US gpm
NPSHr
bhp
25 50 75 100 125 150
10
20
30
40
50
60
0
8
16
1
2
60
60
55
55
50
50
45
45
406.875"
6"
5.125"
Curve No.: CS-15113
American-Marsh Pumps Size: 1.5x2.5-8 RESpeed: 1750 rpm09/03/02
ft
US gpm
NPSHr
bhp
25 50 75 100 125
0
20
40
60
80
100
0
4
8
2
4
5655
55
53
53
50
50
408.375"
7.625"
6.5"
Curve No.: CS-15115
American-Marsh Pumps Size: 1.5x2.5-10 RESpeed: 1750 rpm09/03/02
ft
US gpm
NPSHr
bhp
25 50 75 100 125 150 175 200
0
25
50
75
100
125
0
10
20
4
8
52
52
50
50
48
48
45
45
40
40
3510.375"
9.25"
8"
300 SERIES REC/REF ENCLOSED PERFORMANCE CURVES - 1800 RPM
300 SERIES REC/REF ENCLOSED PERFORMANCE CURVES - 1800 RPM
Curve No.: CS-15117
American-Marsh Pumps Size: 1.5x2.5-13 RESpeed: 1750 rpm09/03/02
ft
US gpm
NPSHr
bhp
20 40 60 80 100 120
0
40
80
120
160
200
0
5
10
5
10
37
37
35
35
30
30
25201513"
11.25"
10"
Curve No.: CS-15119
American-Marsh Pumps Size: 2x2.5-5 RESpeed: 1750 rpm12/07/02
ft
US gpm
NPSHr
bhp
25 50 75 100 125 150 175 200 225
5
10
15
20
25
30
0
5
10
1
2
75
75
72
72
70
70
65
65
6055505.5"
5.125"
4.75"
Curve No.: CS-15121
American-Marsh Pumps Size: 2x2.5-7 RESpeed: 1750 rpm
12/07/02
ft
US gpm
NPSHr
bhp
40 80 120 160 200 240
0
20
40
60
80
100
0
5
10
2
4
7474
72
72
70
70
65
65
6055506.875"
6.125"
5.375"
Curve No.: CS-15123
American-Marsh Pumps Size: 2x2.5-8 RESpeed: 1750 rpm
12/07/02
ft
US gpm
NPSHr
bhp
40 80 120 160 200 240
0
20
40
60
80
100
0
8
16
2.5
5
64
64
63
63
62
62
6055
55
508.375"
7.625"
6.5"
300 SERIES REC/REF ENCLOSED PERFORMANCE CURVES - 1800 RPM
300 SERIES REC/REF ENCLOSED PERFORMANCE CURVES - 1800 RPM
Curve No.: CS-15125
American-Marsh Pumps Size: 2x2.5-10 RESpeed: 1750 rpm12/07/02
ft
US gpm
NPSHr
bhp
50 100 150 200 250
0
25
50
75
100
125
0
8
16
8
16
62
62
60
60
55
55
50
50
4510.375"
9.25"
8"
Curve No.: CS-15127
American-Marsh Pumps Size: 2x2.5-13 RESpeed: 1750 rpm12/07/02
ft
US gpm
NPSHr
bhp
50 100 150 200 250 300 350 400
0
40
80
120
160
200
0
8
16
10
20
62
62
61
61
60
60
58
58
55
55
50
50
12.875"
11.75"
10"
Curve No.: CS-15129
American-Marsh Pumps Size: 2.5x3-5 RESpeed: 1750 rpm12/07/02
ft
US gpm
NPSHr
bhp
50 100 150 200 250 300
12
16
20
24
28
32
0
4
8
2
4
65
65
60505.5"
5.125"
Curve No.: CS-15131
American-Marsh Pumps Size: 2.5x3-7 RESpeed: 1750 rpm12/07/02
ft
US gpm
NPSHr
bhp
80 160 240 320 400
0
20
40
60
80
100
0
5
10
2.5
5
8080
75
75
73
73
70
70
68
68
65605550456.875"
6.125"
5"
300 SERIES REC/REF ENCLOSED PERFORMANCE CURVES - 1800 RPM
300 SERIES REC/REF ENCLOSED PERFORMANCE CURVES - 1800 RPM
Curve No.: CS-15139
American-Marsh Pumps Size: 3x4-7 RESpeed: 1750 rpm09/03/02
ft
US gpm
NPSHr
bhp
80 160 240 320 400 480 560 640
0
20
40
60
80
100
0
8
16
4
8
82
82
80
80
75
75
7065606.75"
6.125"5.75"
Curve No.: CS-15133
American-Marsh Pumps Size: 2.5x3-8 RESpeed: 1750 rpm12/07/02
ft
US gpm
NPSHr
bhp
80 160 240 320 400 480
30
40
50
60
70
80
0
8
16
5
10
77
77
76
76
74
74
72
72
70
70
65608.375"
7.625"
6.5"
Curve No.: CS-15135
American-Marsh Pumps Size: 2.5x3-10 RESpeed: 1750 rpm12/07/02
ft
US gpm
NPSHr
bhp
80 160 240 320 400 480 560
0
25
50
75
100
125
0
10
20
10
20
60
75
75
73
73
70
70
65
65
10.375"
9.25"
8"
Curve No.: CS-15137
American-Marsh Pumps Size: 2.5x3-13 RESpeed: 1750 rpm12/07/02
ft
US gpm
NPSHr
bhp
80 160 240 320 400 480 560
0
40
80
120
160
200
0
8
16
20
40
65
65
62
62
60
60
55
55
50
50
13"
11.875"
10"
300 SERIES REC/REF ENCLOSED PERFORMANCE CURVES - 1800 RPM
300 SERIES REC/REF ENCLOSED PERFORMANCE CURVES - 1800 RPM
Curve No.: CS-15141
American-Marsh Pumps Size: 3x4-8 RESpeed: 1750 rpm09/03/02
ft
US gpm
NPSHr
bhp
100 200 300 400 500 600 700 800
0
20
40
60
80
100
0
10
20
8
16
80
80
78
78
75
75
70
70
65608.5"
7.625"
6.5"
Curve No.: CS-15143
American-Marsh Pumps Size: 3x4-10 RESpeed: 1750 rpm09/03/02
ft
US gpm
NPSHr
bhp
100 200 300 400 500 600 700 800
0
25
50
75
100
125
0
8
16
20
40
74
74
72
72
70
70
68
68
65
65
60
60
5510.375"
9.75"
9.25"
Curve No.: CS-15145
American-Marsh Pumps Size: 3x4-13 RESpeed: 1750 rpm09/03/02
ft
US gpm
NPSHr
bhp
100 200 300 400 500 600 700 800 900
0
40
80
120
160
200
0
8
16
20
40
72
72
70
70
65
65
60
60
5013"
11.75"
10"
Curve No.: CS-15147
American-Marsh Pumps Size: 3x4-16 RESpeed: 1750 rpm09/03/02
ft
US gpm
NPSHr
bhp
100 200 300 400 500 600 700 800 900
50
100
150
200
250
300
0
8
16
40
80
70
70
68
68
65
65
62
62
60
60
55
55
504016"
15"
12.5"
300 SERIES REC/REF ENCLOSED PERFORMANCE CURVES - 1800 RPM
300 SERIES REC/REF ENCLOSED PERFORMANCE CURVES - 1800 RPM
Curve No.: CS-15148
American-Marsh Pumps Size: 4x5-8 RESpeed: 1750 rpm09/03/02
ft
US gpm
NPSHr
bhp
200 400 600 800 1000
30
40
50
60
70
80
0
5
10
10
20
80
80
78
78
75
75
70656055508.5"
7.625"
6.875"
Curve No.: CS-15150
American-Marsh Pumps Size: 4x5-10 RESpeed: 1750 rpm09/03/02
ft
US gpm
NPSHr
bhp
200 400 600 800 1000 1200 1400
0
25
50
75
100
125
0
10
20
20
40
80
80
78
78
75
75
70
70
65
65
60
60
10.375"
9.25"
8"
Curve No.: CS-15152
American-Marsh Pumps Size: 4x5-13 RESpeed: 1750 rpm09/03/02
ft
US gpm
NPSHr
bhp
200 400 600 800 1000
0
40
80
120
160
200
0
5
10
25
50
74
74
70
70
65
65
605013"
11.75"
10"
Curve No.: CS-15153
American-Marsh Pumps Size: 4x5-16 RESpeed: 1750 rpm09/03/02
ft
US gpm
NPSHr
bhp
200 400 600 800 1000 1200
50
100
150
200
250
300
0
8
16
50
100
68
68
65
65
60
60
55504016.125"
13.75"
12.5"
300 SERIES REC/REF ENCLOSED PERFORMANCE CURVES - 1800 RPM
300 SERIES REC/REF ENCLOSED PERFORMANCE CURVES - 1800 RPM
Curve No.: CS-15154
American-Marsh Pumps Size: 5x6-8 RESpeed: 1750 rpm09/03/02
ft
US gpm
NPSHr
bhp
200 400 600 800 1000 1200 1400
20
30
40
50
60
70
0
8
16
20
40
75
75
73
73
70
70
656055508.5"
8"
7.625"
Curve No.: CS-15156
American-Marsh Pumps Size: 5x6-10 RESpeed: 1750 rpm09/03/02
ft
US gpm
NPSHr
bhp
200 400 600 800 1000 1200 1400 1600 1800
0
25
50
75
100
125
0
8
16
20
40
83
83
80
80
75
75
7060504010.375"
9.25"
8"
Curve No.: CS-15157
American-Marsh Pumps Size: 5x6-13 RESpeed: 1750 rpm09/03/02
ft
US gpm
NPSHr
bhp
200 400 600 800 1000 1200 1400
0
40
80
120
160
200
0
8
16
40
80
75
75
70
70
60503013"
11.75"
10"
Curve No.: CS-15158
American-Marsh Pumps Size: 5x6-16 RESpeed: 1750 rpm
09/03/02
ft
US gpm
NPSHr
bhp
250 500 750 1000 1250 1500 1750 2000
50
100
150
200
250
300
0
10
20
80
160
75
75
70
70
65
65
60504016.125"
14.375"
12.625"
300 SERIES REC/REF ENCLOSED PERFORMANCE CURVES - 1800 RPM
300 SERIES REC/REF ENCLOSED PERFORMANCE CURVES - 1800 RPM
Curve No.: CS-15211
American-Marsh Pumps Size: 6x8-8 RESpeed: 1750 rpm09/03/02
ft
US gpm
NPSHr
bhp
400 800 1200 1600 2000 2400
20
30
40
50
60
70
0
20
40
25
50
72
72
65
65
45
8.625"
8.25"
7.875"
7.5"
Curve No.: CS-15213
American-Marsh Pumps Size: 6x8-10 RESpeed: 1750 rpm09/03/02
ft
US gpm
NPSHr
bhp
500 1000 1500 2000 2500
0
25
50
75
100
125
0
20
40
40
80
75
75
554510.375"
9.625"
8.875"
8"
Curve No.: CS-15161
American-Marsh Pumps Size: 6x8-13 RESpeed: 1750 rpm09/03/02
ft
US gpm
NPSHr
bhp
500 1000 1500 2000 2500
0
40
80
120
160
200
0
8
16
80
160
83
83
80
80
75
75
70605013"
11.75"
10"
Curve No.: CS-15162
American-Marsh Pumps Size: 6x8-16 RESpeed: 1750 rpm09/03/02
ft
US gpm
NPSHr
bhp
500 1000 1500 2000 2500 3000
50
100
150
200
250
300
0
20
40
100
200
85
85
83
83
80
80
75
75
7016.125"
15"
12.625"
300 SERIES REC/REF ENCLOSED PERFORMANCE CURVES - 1800 RPM
300 SERIES REC/REF ENCLOSED PERFORMANCE CURVES - 1800 RPM
Curve No.: CS-15163
American-Marsh Pumps Size: 6x8-20 RESpeed: 1750 rpm09/03/02
ft
US gpm
NPSHr
bhp
400 800 1200 1600 2000 2400 2800 3200 3600
0
100
200
300
400
500
0
20
40
200
400
70
7878
75
75
7268625619.625"
17.375"
15.75"
Curve No.: CS-15164
American-Marsh Pumps Size: 8x10-13 RESpeed: 1750 rpm09/03/02
ft
US gpm
NPSHr
bhp
500 1000 1500 2000 2500 3000 3500 4000 4500
0
40
80
120
160
200
0
10
20
80
160
60
8685
85
80
80
75
75
67
67
6212.625"
11.75"
10.625"
Curve No.: CS-15165
American-Marsh Pumps Size: 8x10-16 RESpeed: 1750 rpm09/03/02
ft
US gpm
NPSHr
bhp
1000 2000 3000 4000 5000
50
100
150
200
250
300
0
20
40
200
400
8787
85
85
80
80
75
75
70
70
6516"
14.125"
12.625"
Curve No.: CS-15215
American-Marsh Pumps Size: 8x10-10 RESpeed: 1750 rpm05/18/04
ft
US gpm
NPSHr
bhp
500 1000 1500 2000 2500 3000
0
25
50
75
100
125
0
25
50
40
80
82
81
81
80
80
78
78
76
76
72
72
7065
10.437"
9.875"
9.25"
300 SERIES REC/REF ENCLOSED PERFORMANCE CURVES - 1800 RPM
300 SERIES REC/REF ENCLOSED PERFORMANCE CURVES - 1800 RPM
Curve No.: CS-15167
American-Marsh Pumps Size: 10x12-16 RESpeed: 1750 rpm
09/03/02
ft
US gpm
NPSHr
bhp
1000 2000 3000 4000 5000 6000
0
80
160
240
320
400
0
20
40
200
400
80
80
75
75
70
70
65
65
15.75"
14.5"
13.375"
Curve No.: CS-15168
American-Marsh Pumps Size: 10x12-20 RESpeed: 1750 rpm
09/03/02
ft
US gpm
NPSHr
bhp
800 1600 2400 3200 4000 4800 5600
0
100
200
300
400
500
0
20
40
400
800
78
78
75
75
70
70
6019.625"
18.125"
16.5"
Curve No.: CS-15169
American-Marsh Pumps Size: 12x14-16 RESpeed: 1750 rpm
09/03/02
ft
US gpm
NPSHr
bhp
2000 4000 6000 8000 10000
0
80
160
240
320
400
0
40
80
400
800
80
80
75
75
70
70
60
60
16.25"
15"
13.375"
Curve No.: CS-15166
American-Marsh Pumps Size: 8x10-20 RESpeed: 1750 rpm09/03/02
ft
US gpm
NPSHr
bhp
800 1600 2400 3200 4000
0
100
200
300
400
500
0
10
20
250
500
77
77
75
75
70
70
60
60
19.625"
18.125"
16.5"
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