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Wilo Star-Z 25/6 EM 6 m
1 1/2"
180 mm
(4047573)

Photos - Circulation Pump Wilo Star-Z 25/6 EM 6 m 1 1/2" 180 mm
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Wilo -Star-Z 25/6-3 Drinking Water Circulation Pump Wet Runner Length 180 mm G1 1/2 Star-Z 25/6-3

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Wilo Star-Z 25/6 EM 6 m
1 1/2"
180 mm
Suitable for:central heating
Performance:4800 L/h
Max. head:6 m
Power consumption:99 W
Speeds:3
Connection type:thread
All specifications
Specifications Star-Z 25/6 EM
Main
Main functioncentral heating
Designsingle head
Pump typecentrifugal
Rotor typewet
Specs
Max. flow4800 L/h
Max. head6 m
Max. operating pressure10 bar
Minimum fluid temperature2 °С
Max. fluid temperature65 °С
Features3 speeds
Motor
Max. power consumption99 W
Mains voltage220 В
Shaft arrangementhorizontal
Shaft materialcermet
Connection
Connection typethread
Inlet/outlet arrangementcoaxially
Inlet1 1/2"
Outlet1 1/2"
More specs
Pump housing materialbrass
Impeller materialplastic
Country of brand originGermany
Protection classIP42
Insulation classF
Port-to-port length180 mm
Dimensions (HxWxD)130x101x180 mm
Weight2.7 kg
Official Websitewilo.com
Added to E-CatalogNovember 2014
P/N
4047573

The information in the model description is for reference purposes.
Always clarify the specifications and configuration of the product with the online store manager before purchasing.
Catalog Wilo 2026 - new arrivals, bestsellers, and the most relevant models Wilo.
Model overview based on user reviews  
The Wilo Star-Z 20/1 EM circulation pump is a reliable choice for home heating systems, known for its quiet operation and low vibration. It is designed to handle voltage fluctuations without shutting down, making it unpretentious in terms of network voltage. The pump is energy-efficient, ensuring that electricity costs do not rise significantly. Its construction features a plastic impeller and brass body, which, while not the most durable, are indicative of its high-quality German manufacturing. Installation is straightforward and can be done without professional help if you have the necessary skills and tools. Although the price might seem high, it reflects the brand's reputation for quality and reliability.
Pros

Cons

For use in a home heating system - the most it
28 March 2016 
A good German pump, if you are not afraid to overpay for the brand. Operates quietly, reliably and economically.
It runs very quietly and hardly vibrates. With voltage drops, the motor is not cut down, as is sometimes the case with pumps. In general, the model is very unpretentious in terms of network voltage. Doesn't consume too much electricity. That is, yes, the cost of lighting increases with the purchase of a pump, but not so much that you can grab your head. It is immediately clear that a high-quality foreign-made apparatus, and not a pig-iron Soviet blank. It is easily mounted on a pipe, you don’t even need to call a specialist for this, you can do it yourself if you have the skills and tools.
Plastic impeller and brass body. That is, not the most durable materials. It's not that cheap. I understand it's made in Germany and all, but the price is too high for a pump.
use Wilo Star-Z 25/6 EM month or more
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