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Baseline Chemical Dosage Settings
See Stroke Adjustment, page 24, for stroke adjust settings. CPM (cycles per minute) is determined by controller
settings for On/Off Time, or Cycles if using a Harrier-family chemical injection controller. Adjust the controller settings
to change the CPM. Motor speed is also affected by voltage and back pressure. To use these charts, find the flow
rate above the desired injection rate for the correct-sized plunger. Adjust the stroke and controller settings accord-
ingly for the corresponding CPM.
NOTE: Double values in the charts below for configurations with two pumps.
NOTE: CI-12H pumps have a maximum CPM of 30, which translates to a 50% duty cycle.
NOTE: For continuous injection pumps (CI-xxB), pump CPM is determined by knob setting on the integrated motor
controller. Motor speed is set with the knob. Refer to the motor manual included with continuous injection models for
motor operation.
3/16 in. Fluid Plunger Pumps
CPM
GPD (LPD)
Full Stroke
3/4 Stroke
5
0.9 (3.4)
0.6 (2.3)
10
1.7 (6.5)
1.3 (4.9)
15
2.6 (9.8)
1.9 (7.2)
20
3.4 (13.0)
2.6 (9.8)
25
4.3 (16.3)
3.2 (12.1)
30
5.2 (19.5)
3.9 (14.8)
35
6.0 (22.7)
4.5 (17.0)
40
6.9 (26.1)
5.2 (19.5)
45
7.7 (29.3)
5.8 (22.0)
50
8.6 (32.6)
6.5 (24.6)
55
9.5 (36.0)
7.1 (26.9)
60
10.3 (39.1)
7.7 (29.3)
1/2 in. Fluid Plunger Pumps
CPM
GPD (LPD)
Full Stroke
3/4 Stroke
5
5.2 (19.7)
3.9 (14.8)
10
10.4 (39.4)
7.8 (29.5)
15
15.6 (59.1)
11.7 (44.3)
20
20.8 (78.8)
15.6 (59.1)
25
26.0 (98.5)
19.5 (73.8)
30
31.2 (118.1)
23.4 (88.6)
35
36.4 (137.8)
27.3 (103.4)
40
41.6 (157.5)
31.2 (118.1)
45
46.8 (177.2)
35.1 (132.9)
50
52.0 (196.9)
39.0 (147.7)
55
57.2 (216.6)
42.9 (162.5)
60
62.4 (236.3)
46.8 (177.2)
334513N
1/4 in. Fluid Plunger Pumps
1/2 Stroke
Full Stroke
0.4 (1.5)
1.5 (5.8)
0.9 (3.4)
3.1 (11.6)
1.3 (4.9)
4.6 (17.4)
1.7 (6.5)
6.1 (23.2)
2.2 (8.3)
7.6 (29.0)
2.6 (9.8)
9.2 (34.7)
3.0 (11.4)
10.7 (40.5)
3.4 (13.0)
12.2 (46.3)
3.9 (14.8)
13.8 (52.1)
4.3 (16.3)
15.3 (57.9)
4.7 (17.8)
16.8 (63.7)
5.2 (19.5)
18.4 (69.5)
5/8 in. Fluid Plunger Pumps
1/2 Stroke
Full Stroke
2.6 (9.8)
8.6 (32.6)
5.2 (19.7)
17.2 (65.2)
7.8 (29.5)
25.8 (97.7)
10.4 (39.4)
34.4 (130.3)
13.0 (49.2)
43.0 (162.9)
15.6 (59.1)
51.6 (195.5)
18.2 (68.9)
60.2 (228.0)
20.8 (78.8)
68.8 (260.6)
23.4 (88.6)
77.5 (293.2)
26.0 (98.5)
86.1 (325.8)
28.6 (108.3)
94.7 (358.4)
31.2 (118.1)
103.3 (390.9)
GPD (LPD)
3/4 Stroke
1/2 Stroke
1.1 (4.3)
0.8 (2.9)
2.3 (8.7)
1.5 (5.8)
3.4 (13.0)
2.3 (8.7)
4.6 (17.4)
3.1 (11.6)
5.7 (21.7)
3.8 (14.5)
6.9 (26.1)
4.6 (17.4)
8.0 (30.4)
5.4 (20.3)
9.2 (34.7)
6.1 (23.2)
10.3 (39.1)
6.9 (26.1)
11.5 (43.4)
7.6 (29.0)
12.6 (47.8)
8.4 (31.9)
13.8 (52.1)
9.2 (34.7)
GPD (LPD)
3/4 Stroke
1/2 Stroke
6.5 (24.4)
4.3 (16.3)
12.9 (48.9)
8.6 (32.6)
19.4 (73.3)
12.9 (48.9)
25.8 (97.7)
17.2 (65.2)
32.3 (122.2)
21.5 (81.4)
38.7 (146.6)
25.8 (97.7)
45.2 (171.0)
30.1 (114.0)
51.6 (195.5)
34.4 (130.3)
58.1 (219.9)
38.7 (146.6)
64.5 (244.3)
43.0 (162.9)
71.0 (268.8)
47.3 (179.2)
77.5 (293.2)
51.6 (195.5)
3/8 in. Fluid Plunger Pumps
GPD (LPD)
Full Stroke
3/4 Stroke
2.8 (10.4)
2.1 (7.8)
5.5 (20.8)
4.1 (15.6)
8.3 (31.3)
6.2 (23.5)
11.0 (41.7)
8.3 (31.3)
13.8 (52.1)
10.3 (39.1)
16.5 (62.5)
12.4 (46.9)
19.3 (73.0)
14.5 (54.7)
22.0 (83.4)
16.5 (62.5)
24.8 (93.8)
18.6 (70.4)
27.5 (104.2)
20.7 (78.2)
30.3 (114.7)
22.7 (86.0)
33.0 (125.1)
24.8 (93.8)
3/4 in. Fluid Plunger Pumps
GPD (LPD)
Full Stroke
3/4 Stroke
12.4 (46.9)
9.3 (35.2)
24.8 (93.8)
18.6 (70.4)
37.2 (140.7)
27.9 (105.6)
49.6 (187.6)
37.2 (140.7)
62.0 (234.6)
46.5 (175.9)
74.4 (281.5)
55.8 (211.1)
86.8 (328.4)
65.1 (246.3)
99.1 (375.3)
74.4 (281.5)
111.5 (422.2)
83.7 (316.7)
123.9 (469.1)
92.9 (351.8)
136.3 (516.0)
102.2 (387.0)
148.7 (562.9)
111.5 (422.2)
Operation
1/2 Stroke
1.4 (5.2)
2.8 (10.4)
4.1 (15.6)
5.5 (20.8)
6.9 (26.1)
8.3 (31.3)
9.6 (36.5)
11.0 (41.7)
12.4 (46.9)
13.8 (52.1)
15.1 (57.3)
16.5 (62.5)
1/2 Stroke
6.2 (23.5)
12.4 (46.9)
18.6 (70.4)
24.8 (93.8)
31.0 (117.3)
37.2 (140.7)
43.4 (164.2)
49.6 (187.6)
55.8 (211.1)
62.0 (234.6)
68.2 (258.0)
74.4 (281.5)
25
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