{{ totalProductsCount }}

In cart {{totalProductsCount}} item(s)

Total:
{{sum | formatAmount}}

Your cart is empty

header-product Circulation pump WILO Yonos Maxo 40/0.5-4 (model 2120645) — high-efficiency heating pump, flange DN 40
694.49 €

Circulation pump WILO Yonos Maxo 40/0.5-4 (model 2120645) — high-efficiency heating pump, flange DN 40

WILO Yonos Maxo 40/0.5-4 circulation pump Photo 1
Keep track of price changes You keep track of price changes
Watch the price drop

Leave your address - as soon as the price of the product goes down, you'll know about it right away

You keep track of price changes

Circulation pump WILO Yonos Maxo 40/0.5-4 (model 2120645) — high-efficiency heating pump, flange DN 40

{{email}}
You keep track of price changes

Circulation pump WILO Yonos Maxo 40/0.5-4 (model 2120645) — high-efficiency heating pump, flange DN 40

{{email}}
{{selectedOffer && selectedOffer.price | formatAmount}}

Short description

WILO Yonos Maxo 40/0.5-4 circulation pump (model 2120645) is a flange-mounted pump for heating and circulation systems. It offers variable differential pressure control and compact installation dimensions for DN 40 connections. Intended for central heating, hot water recirculation and boosting in residential or light-commercial installations, it provides reliable flow control and energy-efficient operation.
Available for order: 2 pcs.
Warranty: 2 Years
SKU: 11953956
Manufacturer: WILO
free shipment

Cheapest delivery:

Venipak Pickup LV, Venipak Locker LV

Pick-up points

Venipak Pickup LV

Venipak Locker LV

Cost

1.89 €

Deliver

{{selectedOffer.parcelStationDeliveryString}}

Customer service center
2b. Kengaraga str., Riga, Latvia, LV-1063
16.07.2026 {{selectedOffer.officeDeliveryString}}
free
Courier Delivery Please note that in case of a large parcel additional delivery costs may apply!
21.07.2026 {{selectedOffer.courierDeliveryString}}
From 4.99 €
Parcel couriers
Venipak Pickup LV / Venipak Locker LV / Latvijas Pasts pakomāts / Unisend LV / DPD Paku skapis / Omniva LV / Latvijas Pasts nodaļa
21.07.2026 {{selectedOffer.parcelStationDeliveryString}}
From 1.89 €
0 credit

pay in 3 equal parts

today

0 €

afterward

3 mth. х 231.5 €

overpayment

0 €

All payment Methods:
Bank transfer, Bank cards on-line, Apple Pay, Google Pay, Installment, Leasing for legal entities
36 months installment: from 19.29 euros per month
Leasing for legal entities: from 24.17 euros per month
Together cheaper
{{product.price | formatAmount}}
{{product.title}}
{{productBundle.reference.specialPrice | formatAmount}}
{{productBundle.title}}
{{productBundlePreviousPrice | formatAmount}}
{{productBundleSpecialPrice | formatAmount}}

You saving {{productBundleYouSave | formatAmount}}

Product information

Description

The WILO Yonos Maxo 40/0.5-4 is a flange-mounted circulation pump designed for heating and hot water recirculation systems with DN 40 connections. Built for variable differential pressure control, this high-efficiency heating pump offers compact installation dimensions while maintaining reliable flow control for central heating, domestic hot water circulation and light commercial boosting applications. The design emphasizes energy-efficient operation and stable hydraulic performance across the working range.

Advantages

The pump features variable differential pressure control that adapts to changing system demands, reducing energy consumption compared with fixed-speed pumps. Its flange DN 40 connection and compact footprint simplify integration into existing piping layouts and mechanical rooms. The motor and hydraulics are optimised for quiet operation and long service life, and the unit provides consistent flow rates and pressure stability under varying loads.

Suitable for

  • Central heating systems in residential and light-commercial buildings
  • Domestic hot water recirculation and balancing
  • Boiler and heat pump integration where DN 40 flange connections are required
  • Circulation and boosting duties in small commercial plant rooms

Key specifications

  • Connection type: flange for DN 40 piping
  • Control: variable differential pressure regulation
  • Application: heating and hot water circulation, boosting
  • Design: flange-mounted inline circulation pump with compact dimensions
  • Performance focus: energy-efficient operation and stable hydraulic control

How to use

Install the pump in the return or supply line following standard hydraulic practice and the system designer’s instructions. Ensure correct flange alignment and gasket seating, and use appropriate bolts and torque to achieve a leak-free connection. Connect the electrical supply according to local regulations and select the differential pressure setting that matches the system curve. Commission the pump by purging air from the circuit, verifying flow direction, and checking for vibration or unusual noise. Adjust control settings during initial operation to optimise flow and minimise power consumption.

Usage recommendations

For reliable performance, use water treatment appropriate for closed heating systems and follow routine maintenance intervals: inspect flanges and seals, verify electrical connections, and check pump bearings and impeller condition. When replacing an existing unit, confirm flange dimensions and hydraulic requirements to ensure compatibility. Consult manufacturer documentation or a qualified HVAC technician for system-specific configuration and troubleshooting.

Description

Machine translation. Load original

Similar products

{{product.title}} Show details Hide details

{{highlightedFeature.featureTitle}}:

{{getProductFeatureValueById(product, highlightedFeature.featureId)}}

{{product.price | formatAmount}}
Might be useful
{{product.manufacturerName}}
{{product.categoryName}}
{{product.title}}
{{product.specialPrice}}
{{product.price}}

Customer reviews

Customer questions

FAQ

How much does the WILO Yonos Maxo 40/0.5-4 circulation pump cost, and is it available for purchase?

The price is 694.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 2 pcs. are in stock, and you can place your purchase right now with delivery across Latvia and Europe or choose pickup at the Riga collection point. We offer favorable purchase terms, including the option to split the payment into convenient monthly installments. Availability and price are updated in real time, so we recommend placing your order in advance.

If I order this product today, when will I receive my order?

If you place your order today, delivery will be as fast and convenient as possible. You will be able to pick up your order on 16.07.2026 at the Riga pickup point or choose delivery across Latvia and Europe. We carefully inspect every purchase and pack it securely for safe transportation.

What payment options are available?

AiO.lv offers several payment methods: Bank transfer, Bank cards on-line, Apple Pay, Google Pay, Installment, Leasing for legal entities. All transactions are 100% secure and encrypted.

Can WILO Yonos Maxo 40/0.5-4 circulation pump be purchased with a lease?

Yes, the purchase is available both on credit and with an interest-free installment plan. We work with leading banks and leasing companies in Latvia, allowing you to make your purchase on convenient terms — with a minimal down payment and a repayment period from 3 to 36 months. You can apply for credit or installments for the WILO Yonos Maxo 40/0.5-4 circulation pump online, and the application process is as simple as possible:
  • Select the product on the website and add it to your cart;
  • When placing your order, choose the payment method “Installments”;
  • Fill in the required details for the lending partner;
  • Receive a decision within a few minutes.
For more information about available payment options, interest-free installment terms, and credit conditions in Latvia, please visit the Payment page.

Can this product be purchased for a company (with VAT)?

Yes. AiO.lv works with legal entities in Latvia and across Europe. The product price already includes VAT. For certain product categories, as well as for companies from other EU countries with a valid VAT number, a 0% VAT rate may apply. We issue the invoice immediately after the order is placed, support electronic BIS invoices, and automatically generate all necessary accounting documents. You can complete the purchase for a company online — simply select the company profile and choose bank transfer as the payment method during checkout.

What is the warranty period?

All WILO products come with an official 2 Years warranty. It covers all manufacturing defects and malfunctions that may occur during use. The warranty is valid at all authorized WILO service centers and through AiO.lv

Can the product be returned after purchase?

Yes, you can return the product within 14 days of purchase if you bought it as a consumer (not a legal entity). Returns are possible without giving any reason — the main condition is that the product retains its original appearance and full set of accessories. We will make the process as simple and convenient as possible: just contact our customer support team, and we will help you arrange the return.

Where should I contact for warranty service?

For warranty-related questions you can contact the AiO.lv (SIA VSPRO) customer support team. We will assist with consultation, warranty claim processing, and coordination with certified service centers.
warranty
14-Day Return Policy We are confident in our quality, but if the purchase doesn’t fit — you have 14 days to return the product with peace of mind.
shipping
Fast Delivery Get your orders as quickly as possible — right to your door, parcel lockers, or pickup points across Latvia and the EU.
payment
Secure Payment Pay the way you prefer: cash, VISA, MasterCard, Apple Pay, Google Pay, bank transfer, or 0% installment plan.
warranty
Quality Since 2008 AiO.lv has been on the market for over 18 years and has earned trust — with more than 6000 genuine positive reviews on Google.