Wilo SB Pumps
Yonos PICO-Z 25/0,5-8 180 4265692
- Established 1975
- Trusted by thousands of customers
The Wilo Yonos PICO-Z 25/0,5-8-180 is a high-efficiency glandless circulator built specifically for domestic hot-water (secondary) recirculation. A stainless-steel housing and drinking-water-approved materials keep circulated water hygienic, while the high-efficiency EC motor and constant-pressure control hold hot water ready at every outlet using a fraction of the energy of older bronze or fixed-speed pumps. A thermal insulation shell is supplied as standard.
Stainless-steel circulator for domestic hot-water recirculation — ~8 m max head, 180 mm port-to-port, insulation shell included.
More about this product
The Wilo Yonos PICO-Z 25/0,5-8-180 is a high-efficiency glandless circulator built specifically for domestic hot-water (secondary) recirculation. A stainless-steel housing and drinking-water-approved materials keep circulated water hygienic, while the high-efficiency EC motor and constant-pressure control hold hot water ready at every outlet using a fraction of the energy of older bronze or fixed-speed pumps. A thermal insulation shell is supplied as standard.
At a glance
Key features
Stainless-steel housing, oxide-ceramic shaft and carbon-graphite bearing — CE / UKCA / VDE approved for potable hot-water systems.
Δp-c constant differential pressure, plus three fixed and continuously adjustable speeds, sized for recirculation loops.
A thermal insulation shell is supplied as standard to limit heat loss from the pump body.
Single-button operation; the display shows head, live power in watts and flow in m³/h, plus fault codes. Integrated motor protection.
Wilo-Connector plug for fast, secure electrical connection, with automatic deblocking, manual venting and restart.
The high-efficiency EC motor replaces older fixed-speed bronze pumps and runs at a fraction of their energy use.
Where it’s used
Built for secondary domestic hot-water recirculation loops in homes and light commercial buildings — circulating stored hot water around the system so taps and showers run hot quickly and less water is wasted waiting for temperature. Suitable for drinking-water systems from +2 °C to +95 °C, up to a total water hardness of 20 °dH.
Technical specification
| Max operating pressure | PN10 (10 bar) |
|---|---|
| Max head | ~8 m |
| Max flow | ~4 m³/h |
| Fluid temperature | +2 °C to +95 °C |
| Ambient temperature | −10 °C to +40 °C |
| Max water hardness | 3.57 mmol/l (20 °dH) |
| Mains supply | 1~230 V, 50/60 Hz |
| Rated power P2 | 58 W |
| Rated current | 0.7 A |
| Power consumption P1 | 4–75 W |
| Speed range | 500–4800 rpm |
| Insulation / protection | Class F / IPX4D |
| Connection | G1½ (Rp1, DN25) |
| Port-to-port length | 180 mm |
| Pump housing | Stainless steel |
| Impeller | PPO-GF30 |
| Shaft / bearing | Oxide ceramic / carbon-graphite |
| Net weight | 2.0 kg |
| Approvals | CE, UKCA, VDE, EAC, TR, RCM |
| Article number | 4265692 |
Frequently asked questions
Secondary domestic hot-water recirculation — moving stored hot water around the building so it arrives quickly at taps and showers. It is approved for drinking water; the standard Yonos PICO is not.
Hot-water recirculation runs continuously and must stay hygienic. The stainless-steel housing, oxide-ceramic shaft and carbon bearing resist corrosion and suit potable water, while using far less energy than older fixed-speed designs.
Yes — a thermal insulation shell is supplied as standard to limit heat loss from the pump body.
25 is the DN25 connection, the second figure the maximum head in metres, and the last the port-to-port length in millimetres.
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Data Sheet PDFDownload
Standard delivery:
Standard delivery is free on most orders. Some items may incur a delivery charge depending on weight, size or value. Any applicable charge will be displayed at checkout.
Deliveries will typically be made between 7am and 6pm, Monday to Friday (excluding public holidays).
Next day delivery:
Next working day delivery is available for a £16.50 + VAT delivery charge.
Orders must be placed before 12 noon to qualify for next working day delivery. Orders placed after 12 noon on Thursday but before noon on Friday will be delivered the following Monday. Orders placed after 12 noon on Friday will be delivered on Tuesday.
Pallet/Large/Difficult items:
Some large, heavy or difficult to transport items may incur an additional delivery charge. Please contact us for a delivery quote before ordering.
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