Knight 80 - Page 30

Installation & Operation Manual
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6 Hydronic piping
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Flow Rate (GPM)
Pressure Drop vs. Flow (Includes Secondary Piping)
Pressure Drop (Feet of Head)
Figure 6-3 Pressure Drop vs. Flow
20°F Temperature Rise Applications
Model GPM FT/HD
Minimum Pipe
Size
Pump
Grundfos TACO B & G Armstrong
80 7.5 24 1" UP26-96F/UPS26-99F 0011 NRF-36 E7
105 9.8 27 1"
UPS26-99F
0013 NRF-36 E11
150 14.0 20 1"
UPS26-99F
0011 NRF-36 E7
210 19.6 29 1" UPS32-160 1400-50 PL-55 E9
285 26.5 15 1-1/4" UPS32-80 1400-20 PL-36 E11
Table 6A Circulator Recommendations for Temperature Rise Applications_20°, 25°, and 35°
25°F Temperature Rise Applications
Model GPM FT/HD
Minimum Pipe
Size
Pump
Grundfos TACO B & G Armstrong
80 5.9 15.0 1" UPS15-58FC 0014 PL-30/NRF-36 E7
105 7.7 17.5 1" UP26-64F/UPS26-99F 0014 PL-30/NRF-36 E7
150 11.0 12.8 1" UP26-64F/UPS26-99F 0014 PL-30/NRF-36 E7
210 15.5 19.0 1" UP26-99F/UPS26-99F 0013 PL-36/NRF-36 E7
285 21.0 11.5 1-1/4" UP26-99F/UPS26-99F 0011 PL-36/NRF-36 E7
Pumps listed in bold type are provided by the factory as the boiler circulation pump on standard altitude models.
NOTICE
35°F Temperature Rise Applications
Model GPM FT/HD
Minimum Pipe
Size
Pump
Grundfos TACO B & G Armstrong
80 4.2 7.3 1" UPS15-58FC 007 NRF-22 Astro-30
105 5.5 9.3 1" UPS15-58FC 007 NRF-22 Astro-30
150 7.9 9.5 1" UPS15-58FC 008/0010 PL-30/NRF-36 Astro-30
210 11.0 9.1 1" UPS15-58FC 0010 PL-30/NRF-36 Astro-50
285 15.0 7.3 1-1/4" UP26-64F 008/0010 PL-30/NRF-36 E7
Pumps listed in italicized type are provided by the factory as the boiler circulation pump on high altitude models.
NOTICE
The temperature rise provided by a pump/model combination will decrease by 3% per 1000 feet of elevation.
NOTICE