Submittal Sheet

5 As at: 03/2008 - Subject to change without prior notice
Standard Circulating Pumps
Product review: Wilo-Star/Star S
Equipment/function & technical data Wilo-Star S (cast iron body)
Wilo-Star S...
(cast iron body)
S 16 F S 16 FX S 21 F S 21 FX
Approved fluids
(other fluids on request)
Heating water ••••
Water/glycol mixtures
(max. 1:1; mixtures with more than
20 % glycol require reassessment
of the hydraulic criteria)
••••
Domestic hot water – – – –
Performance
Max. delivery head [ft] 16 16 21 21
Max. delivery head [m] 4.9 4.9 6.4 6.4
Max. volume rate of flow [USGPM] 16.5 16.5 19 19
Max. volume rate of flow [m
3
/h] 3.7 3.7 4.3 4.3
Acceptable field of application
Temperature range for
application in heating and cooling
installations
14 °F (-10 °C)
up to
230 °F (+110 °C)
Temperature range in
domestic hot water system
––––
Ambient temperature range
104 °F (+40 °C) 104 °F (+40 °C)
104 °F (+40 °C) 104 °F (+40 °C)
Max. working pressure p
max
[psi] 140 140 140 140
Pipe connections
Flange • – • –
Flange rotated 90° – • – •
Union connection – – – –
Internal sweat – – – –
Electrical connections
Power supply 1~ [V] 115 115 115 115
Power frequency [Hz] 60 60 60 60
Quick connection with spring clips ••••
Motor/Electronics
Number of speed steps 3 3 3 3
Impedance protected motor
(motor protection not required)
••••
Cable entry on both sides of
terminal box
••••
Protection class F F F F
• = available, – = not available