Wilo Star S-21 ZF Circulating Pump

3-speed wet rotor circulation pump, with flanged connection (flange perpendicular to shaft). Lead Free Stainless steel volute for potable water applications. To be used with bronze or other potable rated flanges.

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, Stainless Steel
• AMP, 0.52 - 0.96A
• 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, SS
• Maximum Feet of Head, 21 ft.
• Maximum Temperature, -14 to 230F
• Phase, 1 PH
• Power Rating, 60 - 110W
• 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