Star/Star-S

Number of results: [11]

Pump connection

0.75"-1.5" Two Bolt Flange [10]

1.5" HV Flange [1]

Mains connection

1~115 V, 60 Hz [10]

1~230 V, 60 Hz [1]

Product description	Pump connection	Mains connection	Pieces per pallet	Maximum operating pressure	Article number
Star 17FX 1-115V	1.5" HV Flange	1~115 V, 60 Hz	68	140 psi	4100870
Star 30F 1-115V	0.75"-1.5" Two Bolt Flange	1~115 V, 60 Hz	78	140 psi	4095807
Star 32F 1-115V	0.75"-1.5" Two Bolt Flange	1~115 V, 60 Hz	100	140 psi	4090770
Star S 21F 1-115V	0.75"-1.5" Two Bolt Flange	1~115 V, 60 Hz	87	140 psi	4105032
Star S 21FX 1-115V	0.75"-1.5" Two Bolt Flange	1~115 V, 60 Hz	87	140 psi	4090765
Star S 21 RFC 1-115V	0.75"-1.5" Two Bolt Flange	1~115 V, 60 Hz	96	140 psi	4171560
Star S 21 ZFX 1-115V	0.75"-1.5" Two Bolt Flange	1~115 V, 60 Hz	87	140 psi	4190427
Star S 33 FC 1-115V	0.75"-1.5" Two Bolt Flange	1~115 V, 60 Hz	96	140 psi	4190420
Star S 33 FC 1-230V	0.75"-1.5" Two Bolt Flange	1~230 V, 60 Hz	96	140 psi	2763362
Star S 33 FC+ 1-115V	0.75"-1.5" Two Bolt Flange	1~115 V, 60 Hz	96	140 psi	4219821
Star S 33 ZF 1-115V	0.75"-1.5" Two Bolt Flange	1~115 V, 60 Hz	100	140 psi	2760525

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Wet rotor circulation pump, with flanged connection. (Flange perpendicular to shaft). Pre-selectable speeds to adjust the capacity on “S” versions. Cast iron body for hot-water heating systems of all kinds, industrial circulation systems, cold-water systems and air-conditioning systems.

Star NaMex

Design

Wet rotor circulation pump, with flanged or union connections. Pre‐selectable speeds to adjust the capacity on "S" versions

Application

Hot Water Heating Systems

Chilled Water

Air Conditioning Systems

Water/Glycol concentrations up to 50%

Solar

Geothermal

Max. Flow: 38 GPM

Max. Head: 33 feet

Equipment/function

3 manual selectable speed stages ("S" type only)
Reliable wet rotor technology
Quick connect wiring
Powerful starting torque
Ultra quiet
Installable hi-temp check (RFC model)
RFC Patented Rotating Flange: US 8,297,664 B2

Type key

	Wilo-Star S 21 RFC
Star	Standard pump
S	3 Speed
21	Max. Head
RF	Rotating Flange
C	Check Valve
Z	Stainless Steel Volute
F	Flanged

Technical data

Max Temp Range: 14°F to 230°F (-10°C to 110°C)
Max Amb Temp: 104°F (40°C)
Electrical Connection: 1~115v, Star S33 available in 1~115v, 230v
Max Working Pressure: 140 PSI (10 Bar)

Materials

Cast Iron Volute
Engineered Composite Impeller
Stainless Steel Shaft
Carbon Impregnated Bearing
Steel Terminal Box

Scope of delivery

Pump
Flange gaskets
Installation and operating instructions

Options

Ventilation pump Star‐RSL 25/6 with automatic ventilation connection
Special version 25/4 and 25/6
- Overall length 130mm (cast iron)
- Overall length 180mm (red bronze)

Wet rotor circulator