5
Delta T of Secondary Loop
467,500
382,500
297,500
212,500
127,500
85,000
10
488,750
403,750
318,750
233,750
148,750
106,250
15
510,000
425,000
340,000
255,000
170,000
127,500
20
100
80
60
40
20
10
Primary Loop
Temperature
minus
Secondary Loop
Temperature
Maximum
Injection
BTUs
Inj ection Piping Size 3/4"
Globe Valv e Opening100%
Typical
Pump Models:
Taco 007
Grundfoss 15-42
B&G NRF22
Delta T of Secondary Loop
715,000
585,000
455,000
325,000
195,000
130,000
10
747,500
617,500
487,500
357,500
227,500
162,500
15
780,000
650,000
520,000
390,000
260,000
195,000
20
100
80
60
40
20
10
Primary Loop
Temperature
minus
Secondary Loop
Temperature
Maximum
Injection
BTUs
Inj ection Piping Size 1"
Globe Valv e Opening100%
Typical
Pump Models:
Taco 007
Grundfoss 15-42
B&G NRF22
Delta T of Secondary Loop
1,155,000
945,000
735,000
525,000
315,000
210,000
10
1,207,500
997,500
787,500
577,500
367,500
262,500
15
1,260,000
1,050,000
840,000
630,000
420,000
315,000
20
100
80
60
40
20
10
Primary Loop
Temperature
minus
Secondary Loop
Temperature
Maximum
Injection
BTUs
Inj ection Piping Size 1 1/4"
Globe Valv e Opening100%
Typical
Pump Models:
Taco 0010
Grundfoss 26-64
Delta T of Secondary Loop
1,760,000
1,440,000
1,120,000
800,000
480,000
320,000
10
1,840,000
1,520,000
1,200,000
880,000
560,000
400,000
15
1,920,000
1,600,000
1,280,000
960,000
640,000
480,000
20
100
80
60
40
20
10
Primary Loop
Temperature
minus
Secondary Loop
Temperature
Maximum
Injection
BTUs
Inj ection Piping Size 1 1/2"
Globe Valv e Opening100%
Typical
Pump Models:
Taco 0012
Grundfoss 43-75
Delta T of Secondary Loop
2,310,000
1,890,000
1,470,000
1,050,000
630,000
420,000
10
2,415,000
1,995,000
1,575,000
1,155,000
735,000
525,000
15
2,520,000
2,100,000
1,680,000
1,260,000
840,000
630,000
20
100
80
60
40
20
10
Primary Loop
Temperature
minus
Secondary Loop
Temperature
Maximum
Injection
BTUs
Inj ection Piping Size 2"
Globe Valv e Opening100%
Typical
Pump Models:
Taco 0012
Grundfoss 43-75
CAUTION:
Sizing Charts are based on Industry S tandards. Values are approximations only. Actual
piping arrangements may affect outputs. The correct pipe and pump sizes for any application should
be performed by a qualified engineer or contractor.