Pump Head Torque Requirements
Selection Guide How to Use This Guide
Running Torque for Pump Heads
Starting and Running Torque for I/P® High-Performance Pump Heads
PTFE® Pump Head Torque Specifications
Starting Torque for L/S® EASY-LOAD® II Pump Heads Use this guide to help you select the number of pump heads and tubing formulations that can be used with your drives. To define your torque needs: - Consider the following:
- Discharge pressure (increase necessary torque)
- Tubing material (firm or soft)
- Multiply by the number of pump heads you would like to use.
- See drive specifications for maximum torque limits. (Consider starting torque when selecting a drive.) The torque of the drive must exceed the starting torque value for the pump head.
- Several factors influence starting torque:
- New or used tubing
- Tubing formulation
- Length of time tubing has been in closed pump head without running
NOTE: Pressures shown are maximum recommended for intermittent use. The maximum recommended continuous use pressures are 1/3 less. Example 1: Using one EASY-LOAD® II pump head with L/S® 15 Norprene® tubing requires a drive capable of supplying at least 8.6 kg-cm (115 oz-in) of starting torque. When using two EASY-LOAD II pump heads with L/S 15 Norprene tubing, you will need a drive capable of supplying 15.0 kg-cm (205 oz-in) of starting torque. Example 2: Drive torque requirements to obtain 17 LPM with I/P High-Performance pump headsChoose your drive based on desired flow rate, pressure in your application, and type of tubing used. For example, if you need 17 LPM at 25 psi and are using Norprene tubing, you need a drive that supplies 0.25 hp.
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size | Pressure
bar (psig) | Silicone/
C-Flex | Viton | Pressure
bar (psig) | Tygon | Tygon LFL | Norprene/
PharMed | | kg-cm | oz-in | kg-cm | oz-in | kg-cm | oz-in | kg-cm | oz-in | kg-cm | oz-in | | L/S® 13 | 0.0 (0)
1.4 (20)
2.1 (30) | 0.49
0.51
0.52 | 6.78
7.04
7.20 | 0.83
0.84
0.84 | 11.52
11.65
11.71 | 0.0 (0)
1.7 (25)
2.8 (40) | 0.77
0.79
0.80 | 10.66
10.94
11.14 | 0.63
0.63
0.64 | 8.74
8.80
8.90 | 0.60
0.62
0.63 | 8.35
8.61
8.80 | | L/S® 14 | 0.0 (0)
1.4 (20)
2.1 (30) | 0.58
0.62
0.69 | 8.00
8.64
9.60 | 1.22
1.24
1.31 | 16.96
17.28
18.24 | 0.0 (0)
1.7 (25)
2.8 (40) | 1.11
1.20
1.29 | 15.36
16.64
17.92 | 0.97
1.04
1.13 | 13.44
14.40
15.68 | 0.94
1.04
1.11 | 13.12
14.40
15.36 | | L/S® 16 | 0.7 (0)
1.4 (20)
2.1 (30) | 0.76
1.06
1.29 | 10.56
14.72
17.92 | 1.82
2.05
2.17 | 25.28
28.48
30.08 | 0.0 (0)
1.7 (25)
2.8 (40) | 1.64
1.91
2.14 | 22.72
26.56
29.76 | 1.27
1.57
1.84 | 17.60
21.76
25.60 | 1.20
1.43
1.70 | 16.64
19.84
23.68 | | L/S® 25 | 0.0 (0)
1.0 (15)
1.7 (25) | 1.20
1.61
1.84 | 16.64
22.40
25.56 | 2.03
2.39
2.53 | 28.16
33.28
35.20 | 0.0 (0)
1.4 (20)
2.4 (35) | 2.21
2.72
3.34 | 30.72
37.76
46.40 | 1.77
2.33
2.97 | 24.64
32.32
41.28 | 1.41
2.05
2.67 | 19.52
28.48
37.12 | | L/S® 17 | 0.0 (0)
0.7 (10)
1.0 (15) | 0.92
1.50
1.73 | 12.80
20.80
24.00 | 2.88
3.22
3.34 | 40.00
44.80
46.40 | 0.0 (0)
1.0 (15)
1.7 (25) | 2.30
2.76
3.34 | 32.00
38.40
46.40 | 1.96
2.53
3.00 | 27.20
35.20
41.60 | 2.30
2.88
3.46 | 32.00
40.00
48.00 | | L/S® 18 | 0.0 (0)
0.3 (5)
0.7 (10) | 1.51
1.87
2.16 | 21.00
26.00
30.00 | 3.10
3.46
3.82 | 43.00
48.00
53.00 | 0.0 (0)
0.7 (10)
1.0 (15) | 3.10
3.89
4.18 | 43.00
54.00
58.00 | 2.16
2.66
3.10 | 30.00
37.00
43.00 | 2.45
3.31
3.67 | 34.00
46.00
51.00 | | L/S® 15 | 0.0 (0)
1.4 (20)
2.1 (30) | 1.01
1.58
2.09 | 14.00
22.00
29.00 | 2.30
2.88
3.24 | 32.00
40.00
45.00 | 0.0 (0)
1.4 (20)
2.4 (35) | 2.30
3.02
3.46 | 32.00
42.00
48.00 | 1.58
2.45
2.88 | 22.00
34.00
40.00 | 1.51
2.30
2.74 | 21.00
32.00
38.00 | | L/S® 24 | 0.0 (0)
1.0 (15)
1.7 (25) | 1.50
2.19
2.88 | 20.80
30.40
40.00 | 3.46
3.92
4.26 | 48.00
54.40
59.20 | 0.0 (0)
1.7 (25)
2.8 (40) | 2.42
3.34
4.38 | 33.60
46.40
60.80 | 1.84
2.88
3.69 | 25.60
40.00
51.20 | 1.73
2.88
3.80 | 24.00
40.00
52.80 | | L/S® 35 | 0.0 (0)
1.0 (15)
1.7 (25) | 2.07
3.22
3.80 | 28.80
44.80
52.80 | 4.60
5.07
5.41 | 64.00
70.40
75.20 | 0.0 (0)
1.4 (20)
2.4 (35) | 2.53
3.92
5.64 | 35.20
54.40
78.40 | 1.96
3.46
4.61 | 27.20
48.00
64.00 | 2.30/2.65
4.03/4.15
5.18 | 32.00/37.00
56.00/57.60
72.00 | | L/S® 36 | 0.0 (0)
0.7 (10)
1.0 (15) | 1.96
2.88
3.46 | 27.20
40.00
48.00 | 4.15
5.07
5.41 | 57.60
70.40
75.20 | 0.0 (0)
1.0 (15)
1.7 (25) | 3.00
4.38
5.53 | 41.60
60.80
76.80 | 2.65
3.92
4.84 | 36.80
54.40
67.20 | 2.53/2.88
4.03/4.15
5.07/4.95 | 35.20/40.00
56.00/57.60
70.40/68.80 | | I/P® 26 | 0.0 (0)
0.7 (10)
2.1 (30) | 7.60
8.29
9.79 | 105.6
115.2
136 | — | — | 0.0 (0)
0.7 (10)
2.1 (30) | 9.22
9.56
10.71 | 128
132.8
148.8 | — | — | 8.87
9.33
10.94 | 123.2
129.6
152 | | I/P® 73 | 0.0 (0)
0.7 (10)
2.1 (30) | 9.36
10.80
16.56 | 130
150
230 | 11.88
13.68
19.08 | 165
190
265 | 0.0 (0)
0.7 (10)
2.1 (30) | 15.12
15.84
21.24 | 210
220
295 | — | — | 8.76
9.56
12.90 | 121.6
132.8
179.2 | | I/P® 82 | 0.0 (0)
0.7 (10)
1.4 (20) | 11.52
32.26
— | 160
448
— | — | — | 0.0 (0)
0.7 (10)
1.4 (20) | 12.21
14.17
17.97 | 169.6
196.8
249.6 | 12.21
14.17
17.97 | 169.6
196.8
249.6 | 12.67
24.77
28.80 | 176
344
400 | | I/P® 70 | 0.0 (0)
0.7 (10)
1.0 (15) | 10.94
13.00
14.80 | 152
180.2
205.9 | — | — | 0.0 (0)
0.7 (10)
1.0 (15) | — | — | 10.80
13.00
14.30 | 150.6
180.3
198.2 | 13.70
15.40
16.60 | 189.6
214.4
230 | | I/P® 88 | 0.0 (0)
0.7 (10)
1.0 (15) | 10.80
15.40
19.00 | 150.6
213.7
264.5 | — | — | 0.0 (0)
0.7 (10)
1.0 (15) | — | — | 10.60
14.10
16.70 | 146.9
195.2
232.5 | 12.40
16.20
18.20 | 172
224.5
252.6 | | I/P® 89 | 0.0 (0)
0.7 (10)
1.0 (15) | 8.50
26.40
27.00 | 118.4
367.2
374.4 | — | — | 0.0 (0)
0.7 (10)
1.0 (15) | — | — | 13.40
21.00
26.20 | 185.6
291.2
363.2 | 11.50
19.00
24.00 | 160
264
332 |
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size | Silicone | TYGON® | NORPRENE® | Starting
kg-cm
(oz-in) | Running*
kg-cm
(oz-in) | Starting
kg-cm
(oz-in) | Running*
kg-cm
(oz-in) | Starting
kg-cm
(oz-in) | Running*
kg-cm
(oz-in) | | I/P® 70 | 13.4 (186) | 10.9 (152) | 14.7 (205) | 10.8 (151) | 16.1 (224) | 13.7 (190) | | I/P® 88 | 12.84 (177) | 10.8 (151) | 15 (208) | 10.6 (147) | 16.1 (224) | 12.4 (172) | | I/P® 89 | 23 (320) | 8.5 (118) | 47.2 (656) | 13.4 (186) | 64.5 (896) | 11.5 (160) | *Running torque values obtained at 650 rpm and 0 psi
Go to Top | Catalog number | 07090-62 | 07090-42 | | Discharge pressure | 0 bar (0 psi) | 5.2 bar (75 psi) | 0 bar (0 psi) | 3.5 bar (50 psi) | | Start | 5.8 (80) | — | 13 (180) | — | | Average | 2.16 (30) | 2.88 (40) | 2.5 (35) | 5.40 (75) | | Peak | 3.24 (45) | 5.49 (75) | 6.48 (90) | 12.6 (175) |
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size | Number
of pump
heads | Silicone/
C-Flex | Tygon/
Tygon LFL | Norprene/
PharMed | Viton | Tygon
food | | kg-cm | oz-in | kg-cm | oz-in | kg-cm | oz-in | kg-cm | oz-in | kg-cm | oz-in | | L/S® 13 | 1
2 | 0.79
1.2 | 11
17 | 2.1/1.2
3.6/1.7 | 30/17
50/23 | 1.4
2.5 | 20
35 | 1.2
1.5 | 17
21 | 5.8
7.2 | 80
100 | | L/S® 14 | 1
2 | 1.2
0.07 | 16
25 | 3.2/1.9
5.4/4.0 | 45/27
75/55 | 2.9
5.0 | 40
75 | 1.7
2.9 | 23
40 | 6.5
9.7 | 90
135 | | L/S® 16 | 1
2 | 1.2
2.5 | 16
35 | 4.3/2.9
6.8/5.0 | 60/40
95/70 | 3.2
6.5 | 45
90 | 2.5
5.4 | 35
75 | 6.5
11.9 | 90
165 | | L/S® 25 | 1
2 | 2.2
3.6 | 30
50 | 6.1/3.6
7.9/6.5 | 85/50
110/90 | 3.6
7.2 | 50
100 | 2.2
4.3 | 30
60 | 5.4
13.3 | 75
185 | | L/S® 17 | 1
2 | 2.5
4.0 | 35
55 | 5.8/5.4
9.0/6.8 | 80/75
125/95 | 8.6
16.1 | 120
224 | 3.6
6.9 | 50
96 | 8.6
17.3 | 120
240 | | L/S® 18 | 1
2 | 3.6
5.0 | 50
70 | 7.2/3.6
14.4/7.9 | 100/50
200/110 | 8.6
13.7 | 120
190 | 5.4
8.1 | 75
112 | 8.6
17.3 | 120
272 | | L/S® 15 | 1
2 | 5.0
6.5 | 65
90 | 9.0/6.5
17.2/8.6 | 125/95
240/120 | 8.3
15.0 | 115
208 | 4.7
8.1 | 65
112 | 20.2
32.3 | 280
448 | | L/S® 24 | 1
2 | 4.0
5.8 | 55
80 | 9.5/7.2
12.2/9.7 | 135/100
170/135 | 8.6
11.5 | 120
160 | 7.6
8.6 | 105
120 | 21.3
30.0 | 295
416 | | L/S® 35 | 1
2 | 5.8
8.6 | 80
120 | 10.0/7.2
19.6/10.4 | 140/100
272/144 | 12.7/9.7
21.9/18.4 | 176/135
304/256 | 7.9
12.7 | 110
176 | 23.0
35.1 | 320
488 | | L/S® 36 | 1
2 | 5.0
9.2 | 70
128 | 11.5/10.8
20.7/17.6 | 160/150
288/244 | 10.8/11.1
21.9/20.7 | 150/155
304/288 | 7.2
11.5 | 100
160 | 24.4
35.8 | 340
498 |
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