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The input fields are GREEN with blue numbers and the calculated fields are GREY with black numbers
1. Select the CAM
2. Input the maximum flow rate required for the application
3. Input the maximum pressure required for the application
4. Select the motors maximum RPM, you can choose from 1800 or 1200 RPM
RESULTS
: Two motor sizes are calculated, one if you are running without a VFD and right below it, the size required if you are using a VFD
5. Select the motor size you intend to use to calculate the maximum pressure that can be generated
(Hover over row names for comment boxes)
ACTION
PUMP MODEL:
F20/F21
D03/M03/D04
D10/M10/D12
D15/D17
H25
D35
D40
D66
T100
Q155
T200
Q330
CALCULATED:
This is a default or calculated field related to the CAM selected (below), representing the recommended maximum pump shaft RPM, refer to this when selecting motor RPM, VFD operation or Pulley Selection
MAXIMUM PUMP RPM:
1750
1750
900
1000
450
450
400
400
SELECT CAM:
This refers to the CAM shaft, the F series, D40 and D66 only have 1 displacement option, the others have a drop-down list, select the maximum displacement closest to your required flow rate or one that is compatible with your desired operating pressure and/of materials of construction
MAXIMUM FLOW RATE, GPM:
1.0
3.1
2.2
2.9
2.0
8.8
8.1
13.8
15.5
20
16
12
36.5
34.0
38
67.8
26
38
45
68
77
96
63
78
111
127
157
63
72
93
83
54
57
117
104
INPUT:
The maximum flow rate required for the application
DESIRED FLOW RATE(GPM):
INPUT:
The maximum pressure you require for the application
MAXIMUM PRESSURE (PSI):
SELECT:
The maximum RPM for the motor per its nameplate, we limit the selection to either 1800 or 1200 RPM motors as those are the most common
MOTOR MAX. RPM:
1800
1200
1800
1200
1800
1200
1800
1200
1800
1200
1800
1200
1800
1200
1800
1200
1800
1200
1800
1200
1800
1200
1800
1200
CALCULATED:
RESULT: calculated pump/motor shaft RPM required for your input flow rate; you may use a lower RPM motor, VFD, gearbox or belt-drive arrangement OR rely on the pressure regulating valve to bypass excess flow
RPM REQUIRED:
CALCULATED:
Horsepower required if not using a VFD, ROUND-UP to the next closest standard motor horsepower (size) in the "standard motor horsepower size" drop-down list below
HORSEPOWER REQUIRED:
CALCULATED:
Use this size HP motor if you will be using a VFD to operate within a 10:1 turndown ratio. ROUND-UP to the nearest "standard motor horsepower size" using the drop-down list below
HORSEPOWER REQURIED WITH
VFD
:
CALCULATED:
The inch-LBS required by the motor shaft to deliver the specified flow rate at specified maximum pressure
INCH-LBS PUMP MOTOR SHAFT TORQUE REQUIRED:
SELECT:
Choose a standard motor HP size from the drop-down list to calculate the maximum pressure this motor can support
STANDARD MOTOR HORSEPOWER SIZE:
0.50
0.75
1.00
1.0
1.5
2.0
3.0
5.0
1.0
1.5
2.0
3.0
5.0
7.5
10.0
15.0
20.0
25.0
30.0
5.0
7.5
10.0
15.0
20.0
10.0
15.0
20.0
25.0
30.0
40.0
10.0
15.0
20.0
25.0
30.0
40.0
10.0
15.0
20.0
25.0
30.0
40.0
50.0
40
50
75
100
125
100
125
150
200
300
400
40
50
75
100
125
150
100
125
150
200
300
400
CALCULATED:
RESULT: maximum pressure for the motor size chosen
MAXIMUM PRESSURE PER
SELECTED
MOTOR SIZE:
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