DHW Recirculation Systems Guide
Pump Selection Charts
This information is provided as a guide only. Larger models are available. For larger systems, consult your local Taco representative.
Find the table below that best describes the design you plan to use. Select the pump model based on the supply and return pipe
length, size and pump options. Do not oversize the pump or high velocity noise and erosion corrosion of system piping may result.
Model #
003
006
008
003-IFC*
006-IFC*
008-IFC*
Supply Pipe
Maximum Length (ft.)
50
150
275
50
125
250
Total Maximum Pipe
Length (ft.)
100
300
550
100
250
500
* With Integral Flow Check
1/2" Supply & 1/2" Return Lines
003
006
008
003-IFC*
006-IFC*
008-IFC*
350
900
1,450
350
750
1,350
700
1,800
2,900
700
1,500
2,700
* With Integral Flow Check
Model #
Supply Pipe
Maximum Length (ft.)
Total Maximum Pipe
Length (ft.)
3/4" Supply & 3/4" Return Lines
Model #
003
006
008
003-IFC*
006-IFC*
008-IFC*
Supply Pipe
Maximum Length (ft.)
100
275
450
100
275
425
Total Maximum Pipe
Length (ft.)
200
550
900
200
550
850
* With Integral Flow Check
3/4" Supply & 1/2" Return Lines
Model #
003
006
008
003-IFC*
006-IFC*
008-IFC*
Supply Pipe
Maximum Length (ft.)
125
325
525
130
275
500
Total Maximum Pipe
Length (ft.)
250
650
1,050
260
550
1,000
* With Integral Flow Check
1" Supply & 1/2" Return Lines
1/2" Supply & 1/2" Return Lines
3/4" Supply & 3/4" Return Lines
3/4" Supply & 1/2" Return Lines
1" Supply & 1/2" Return Lines
Assumptions:
Flow = 1 GPM
Max. Velocity = 3 ft./sec.
Allowances have been added for pressure drop
of other typical system components
Type L Copper Tubing
Supply & Return Piping are equal in length
1" Supply & 3/4" Return Lines
Performance Field Information - 60 Hz
Model #
003
006
003-IFC*
006-IFC*
Supply Pipe
Maximum Length (ft.)
600
1,500
1,200
2,500
To tal Maximum Pipe
Length (ft.)
1,200
3,000
1,200
2,500
* With Integral Flow Check
1" Supply & 3/4" Return Lines
DOMESTIC WATER RECIRCULATION MODELS (STD)
FLOW - M 3/H
FLOW - GPM
TOTAL HEAD — FEET
TOTAL HEAD — METERS
TOTAL HEAD — FEET
TOTAL HEAD — METERS
FLOW - M 3/H
0.0
20
18
16
14
12
10
8
6
4
2
0
20
18
16
14
12
10
8
6
4
2
0
6.0
5.5
5.0
4.5
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0.0
6.0
5.5
5.0
4.5
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0.0
1.00.5 1.5 2.0 2.5 3.0 3.5 4.0 4.5
04268101214161820
FLOW - GPM
04268101214161820
0.0 1.00.5 1.5 2.0 2.5 3.0 3.5 4.0 4.5
DOMESTIC WATER RECIRCULATION MODELS (IFC)
003
006
008
003-IFC
006-IFC
008-IFC
1
2
3
1
2
3
1
2
3
1
2
3
Choosing the Correct
Circulator for the Job
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