The system controller has passed the CE certificate.

Identification Code
E.g.: Wilo-Star-RS 25/6
RS: Screwed-end pump
25/: Connection size
6: Rated shut-off head [m]

Technical Data
1. Suitable Fluids
Heating water to VDI 2035
Water/glycol mixtures: max. Mixing ratio 1:1
Hydrate coercions required for mixing ratio above 20%

2.Performance
Speed range: 1100-2200pm
Manual 3-speed control
Fluid temperature range:-10℃-+110℃
Max. Working prossure: 10 bars

3.Ambient Temperature
Permissible up to:40℃

4.Power
Mains power: 1~230V, 50Hz

5.Motor
Degree of protection:IP42
Insulation class: 1
Interference emission: EN 50081-1
Interference resistance: EN 50082-2

6.Construction Materials
Pump body: cast iron
Impeller: GF-PP
Shaft: stainless steel
Bearings: graphite

Scope of supply
Pump incl.2 union washers, packing and O&M manual

Accessories
Union connector fittings, thermal insulation

Mounting Positions
Pump shaft in the horizontal plane, terminal box optionally 3,6,9 or 12o’clock

Pump Equipment
Screwed end single head pump
Manual 3-speed control
Non-overloading single-phase motor
Optional left or right cable entry
Special design versions Wilo-star-RS25/4 and RS25/6
Bronze body, 180mm port-to-port
Cast iron body 130 mm port-to-port