WILO STAR-Z 20/5-3 RECIRCULATION PUMP 230V PN10 FOR DOMESTIC HOT WATER

Wilo Star-Z 20/5-3 single-phase 230 V circulation pump for domestic hot water systems and water recirculation, designed for continuous operation in potable water distribution circuits for residential and civil applications.

The pump features a wet-rotor motor with manual three-speed switching, a bronze pump housing and corrosion-resistant internal components, ensuring long-term reliability and compatibility with potable water systems. The compact design allows direct installation on recirculation pipework.

According to official Wilo technical data and characteristic curve, the pump reaches a maximum head of 5.2 m and a maximum flow rate of 4.4 m³/h, with values varying depending on the selected speed and system operating point.

MAIN TECHNICAL DATA
single-phase power supply 1~230 V 50 Hz
rated power 38 W
maximum power input 93 W
rated current 0.4 A
maximum speed 1900 rpm
maximum operating pressure PN 10 bar
maximum head 5.2 m
maximum flow rate 4.4 m³/h
fluid temperature from 2 °C to 65 °C
ambient temperature from 0 °C to 40 °C
protection rating IP44
insulation class F
bronze pump housing CC499K
PPE-GF30 impeller
oxide ceramic shaft
resin-impregnated carbon bearings
threaded connections G 1¼
installation length 150 mm

APPLICATIONS
domestic hot water recirculation
potable water distribution systems
residential and civil installations
DHW recirculation circuits