Install Instructions

20
e. Table 4.4 provides the flow rate and pressure drop
information that corresponds to various system
temperature rise values (ΔT). The pressure drop
shown is for the boiler only. If there is significant
system pressure drop in the system, this should be
included when specifying circulators.
f. Table 4.5 provides a list of recommended
circulators for boilers on a secondary loop of a
primary/secondary system which uses water as a
heating medium.
Table 4.4: Flow Rate and Pressure Drop for Various System Temperature Rise Values
ΔT
(°F)
Flow Rate & Pressure Drop
PF-50 PF-80 PF-110 PF-140 PF-210 PF-399
GPM FT GPM FT GPM FT GPM FT GPM FT GPM FT
40 2.3 2.17 3.7 3.92 5.1 3.74 6.5 2.70 9.6 6.23 18.7 4.97
35 2.6 2.72 4.2 4.95 5.8 4.75 7.4 3.51 11.0 7.69 21.3 6.38
30 3.1 3.54 4.9 6.49 6.7 6.27 8.7 4.75 12.8 9.81 24.9 8.50
25 3.7 4.83 5.8 8.95 8.1 8.70 10.4 6.80 15.4 13.09 29.8 11.93
20 4.6 7.06 7.3 13.25 10.1 12.99 13.0 10.55 19.2 18.63 37.3 18.08
15 6.1 11.52 9.7 21.97 13.5 21.78 17.3 18.58 25.6 29.35 49.7 30.90
10 9.2 22.97 14.6 44.81 20.2 45.11 26.0 41.26 38.4 55.71 74.6 65.74
Table 4.5: Circulator Selection Chart (General Pump – Primary Secondary)
Circulator
Manufacturer
Temperature
Difference
PF-50 PF-80 PF-110 PF-140 PF-210 PF-399
Taco
20°F
005* 009 0014 0014 1400-20 1400-50
Grundfos
UPS15-58FC
Med Speed
UPS15-58FC
Hi Speed
UPS26-99FC
Med Speed
UPS26-99FC
Med Speed
UPS32-80F
Med Speed
UPS32-160F
Med Speed
Bell & Gossett NRF-22 NRF-22 NRF-36 NRF-25 NRF-36 PL-55
Wilo
Star S 21 FX
Med Speed
Star S 21 FX
Hi Speed
Star S 21 FX
Hi Speed
Star 30 F
Top S 1.25 x 25
Max
Top S 1.25 x 35
Max
Armstrong
Astro 230CI
Speed 2
Astro 250CI
Speed 3
Astro 280CI
Speed 2
Astro 280CI
Speed 2
E9 E21
Taco
25°F
006F* 007 008 007 0014 1400-20
Grundfos
UPS15-58FC
Lo Speed
UPS15-58FC
Med Speed
UPS15-58FC
Hi Speed
UPS15-58FC
Hi Speed
UPS26-99FC
Med Speed
UPS32-80F
Med Speed
Bell & Gossett NRF-9F/LW NRF-22 NRF-22 NRF-22 NRF-45 PL-50
Wilo
Star S 21 FX
Low Speed
Star S 21 FX
Med Speed
Star S 21 FX
Hi Speed
Star S 21 FX
Hi Speed
Star 30 F
Top S 1.25 x 35
Max
Armstrong
Astro 230CI
Speed 2
Astro 230CI
Speed 3
Astro 230CI
Speed 3
Astro 230CI
Speed 3
Astro 280CI
Speed 2
E11
Taco
30°F
006F* 005* 005* 005* 0014 0013
Grundfos UP15-10F
UPS15-58FC
Med Speed
UPS15-58FC
Med Speed
UPS15-58FC
Med Speed
UPS26-99FC
Med Speed
UPS26-99FC
Hi Speed
Bell & Gossett NRF-9F/LW NRF-22 NRF-22 NRF-22 NRF-25 NRF-36
Wilo
Star S 21 FX
Min Speed
Star S 21 FX
Med Speed
Star S 21 FX
Med Speed
Star S 21 FX
Hi Speed
Star 30 F Star 17 FX
Armstrong
Astro 230CI
Speed 1
Astro 230CI
Speed 2
Astro 230CI
Speed 2
Astro 230CI
Speed 3
Astro 280CI
Speed 2
Astro 290CI
Speed 3
Taco
35°F
006F* 006F* 006F* 006F* 0010 0014
Grundfos UP15-10F
UPS15-58FC
Lo Speed
UPS15-58FC
Med Speed
UPS15-58FC
Med Speed
UPS15-58FC
Hi Speed
UPS26-99FC
Hi Speed
Bell & Gossett N/A NRF-9F/LW NRF-9F/LW NRF-9F/LW NRF-22 NRF-45
Wilo
Star S 21 FX
Min Speed
Star S 21 FX
Min Speed
Star S 21 FX
Med Speed
Star S 21 FX
Med Speed
Star S 21 FX
Hi Speed
Star 30 F
Armstrong
Astro 230CI
Speed 1
Astro 230CI
Speed 2
Astro 230CI
Speed 2
Astro 230CI
Speed 2
Astro 250CI
Speed 3
Astro 290CI
Speed 2
Taco
40°F
006F* 006F* 006F* 006F* 007 0010
Grundfos UP15-10F
UPS15-58FC
Lo Speed
UPS15-58FC
Lo Speed
UPS15-58FC
Lo Speed
UPS15-58FC
Hi Speed
UPS26-99FC
Med Speed
Bell & Gossett N/A NRF-9F/LW NRF-9F/LW NRF-9F/LW NRF-22 NRF-33
Wilo
Star S 21 FX
Min Speed
Star S 21 FX
Min Speed
Star S 21 FX
Min Speed
Star S 21 FX
Min Speed
Star S 21 FX
Hi Speed
Star 30 F
Armstrong
Astro 230CI
Speed 1
Astro 230CI
Speed 1
Astro 230CI
Speed 2
Astro 230CI
Speed 2
Astro 250CI
Speed 3
Astro 290CI
Speed 2
WATER PIPING AND CONTROLS