Wilo Star S-33 FC Circulating Pump

3-speed wet rotor circulation pump, with flanged connection (flange perpendicular to shaft). Cast iron body for hot-water heating systems of all kinds, industrial circulation systems, cold-water systems and air-conditioning systems.

This pump is most commonly used in radiant floor heating applicaitons or for drainback solar water heating system because of its high head capability.

Features and Attributes:

• Maintenance-free single-head circulators with 3 speed motors
• Quick connection with spring clips
• Non overload motor
• Reliable wet rotor technology
• Quick connect wiring
• Fits all competitor’s models
• Powerful starting torque, ultra quiet
• Automatically vented
• Cast Iron with installable glass filled noryl + EPDM rubber check valve
• Engineered composite (40% GF) impeller

• Length, 7 in.
• Width, 5-1/16 in.
• Height, 6-3/8 po
• Material, Cast Iron
• AMP, 0.85 - 1.8A
• Bearing Material, Carbon, Metal Impregnated
• End Connection 1, Flanged
• End Connection 2, Flanged
• Environmental Conditions, 104F Ambient Temperature
• Flow Rate, 19 gpm US
• Horsepower, 1/6 hp
• Impeller, Engineered Composite
• Material Type, CI
• Maximum Feet of Head, 21 ft.
• Maximum Temperature, -14 to 230F
• Phase, 1 PH
• Power Rating, 98 - 202W
• Power Source, Hardwired
• Pressure - Maximum, 140 psi
• RPM, 1300 - 2700 RPM
• Shaft Material, Stainless Steel
• Specifications - UL Listed, Yes
• VAC at 60 Hz, 115 V