Circulator Pump Sizing
Guide
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Circulator Pump Models
used on ½" Supply & ½" Return Pipes
|
|
UP Bronze Model Circulators
|
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Model #
|
½" Supply Pipe, Max.Length, ft
|
Total Max.Pipe Length, ft
|
Supply Line Volume, Gallons
|
| UP15-10B5 |
100
|
200
|
2.4
|
|
UP Bronze Model Circulators with
Built-In Check Valve
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|
Model #
|
½" Supply Pipe, Max.Length, ft
|
Total Max.Pipe Length, ft
|
Supply Line Volume, Gallons
|
| UP15-10BUC5 |
85
|
170
|
2.0
|
|
Circulator Pump Models
used on ¾" Supply & ½" Return Pipes
|
|
UP Bronze Model Circulators
|
|
Model #
|
¾" Supply Pipe, Max.Length, ft
|
Total Max.Pipe Length, ft
|
Supply Line Volume, Gallons
|
| UP15-10B5 |
200
|
400
|
10.0
|
| UP15-10B7 |
215
|
430
|
10.8
|
| UP15-18B5 |
460
|
920
|
23.1
|
| UP15-18B7 |
500
|
1000
|
25.1
|
|
UP Stainless Steel Model Circulators
|
|
Model #
|
¾" Supply Pipe, Max.Length, ft
|
Total Max.Pipe Length, ft
|
Supply Line Volume, Gallons
|
| UP15-18SU |
255
|
510
|
12.8
|
| UP15-42SU |
425
|
850
|
21.4
|
| UP25-64SU |
700
|
1400
|
35.2
|
|
UP Bronze Model Circulators with
Built-In Check Valve
|
|
Model #
|
¾" Supply Pipe, Max.Length, ft
|
Total Max.Pipe Length, ft
|
Supply Line Volume, Gallons
|
| UP15-10BUC5 |
170
|
340
|
8.5
|
| UP15-10BUC7 |
195
|
390
|
9.8
|
| UP15-18BUC5 |
460
|
920
|
23.1
|
| UP15-18BUC7 |
500
|
1000
|
25.1
|
| NOTE:
Calculations are based on 110 degree F water at 1 gpm for type "L"
copper pipe with 10 elbows and 5 tees for the hot water supply. Also,
allows use of type "L" copper pipe of equal length as the supply with 10
elbows and 1 check valve for the return pipe. Check valve is removed
from calculations for models with built-in check valves. For other
selections call your local Grundfos Sales Representative. |
|
Circulator Pump Models
used on ¾" Supply & ¾" Return Pipes
|
|
UP Bronze Model Circulators
|
|
Model #
|
¾" Supply Pipe, Max.Length, ft
|
Total Max.Pipe Length, ft
|
Supply Line Volume, Gallons
|
| UP15-10B7 |
500
|
1000
|
25.1
|
| UP15-18B7 |
1600
|
3200
|
80.4
|
| UP15-42B7 |
1800
|
3600
|
90.5
|
|
UP Stainless Steel Model Circulators
|
|
Model #
|
¾" Supply Pipe, Max.Length, ft
|
Total Max.Pipe Length, ft
|
Supply Line Volume, Gallons
|
| UP15-18SU |
1275
|
2550
|
64.1
|
| UP15-42SU |
1350
|
2700
|
67.8
|
| UP25-64SU |
2200
|
4400
|
110.7
|
|
UP Bronze Model Circulators with
Built-In Check Valve
|
|
Model #
|
¾" Supply Pipe, Max.Length, ft
|
Total Max.Pipe Length, ft
|
Supply Line Volume, Gallons
|
| UP15-10BUC7 |
620
|
1240
|
31.2
|
| UP15-18BUC7 |
1575
|
3150
|
79.2
|
| UP15-42BUC7 |
1700
|
3400
|
85.4
|
| NOTE:
Calculations are based on 110 degree F water at 1 gpm for type "L"
copper pipe with 20 elbows and 10 tees for the hot water supply. Also,
allows use of type "L" copper pipe of equal length as the supply with 20
elbows and 1 check valve for the return pipe. Check valve is removed
from calculations for models with built-in check valves. For other
selections call your local Grundfos Sales Representative. |
|
Additional Piping
Components
|
|
Pipe Component
|
Equiv. Pipe Length of ½" Component, ft
|
Equiv. Pipe Length of ¾" Component, ft
|
| 90 degree Elbow |
1.55
|
2.06
|
| 45 degree Elbow |
0.83
|
1.10
|
| Tee (Straight Port) |
1.00
|
1.40
|
| Tee (Side Port) |
3.10
|
4.10
|
| Flow Check |
5.10
|
6.86
|
| NOTE: For each
additional pipe component on the system, its equivalent length must be
subtracted to the supply pipe max.length on the pump selection charts to
get the revised max. supply pipe length. |
|