# Thermostatic radiator valve straight DN20 with presetting DANFOSS 90482000521

**URL:** https://aio.lv/en/product--danfoss-90482000521--11699885
**Data updated:** 2026-03-08 08:45 (EET)
**Category:** Heating Radiators
**Manufacturer:** DANFOSS
**Manufacturer code:** 90482000521
**EAN:** 4260175470480
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 21.49 €
**Prices and availability valid until:** 2026-07-14 23:59
**Price without VAT (21%):** 17.76 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--danfoss-90482000521--11699885

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 07.07.2026 | free |
| Pickup points | 10.07.2026 | 1.99 EUR |
| Courier delivery to door | 10.07.2026 | 4.99 EUR |

## Summary description

Straight thermostatic radiator valve DN20 from DANFOSS with factory presetting. Designed to regulate flow to radiators in hot-water heating systems, this valve offers preset adjustment for stable temperature control and simplified balancing. Suitable for residential and commercial radiators with compatible DN20 connections; used for individual room temperature regulation and hydraulic balancing.

## Long description

Straight thermostatic radiator valve DN20 by DANFOSS with factory presetting is engineered for precise flow control in hot-water heating systems. The valve is designed to be fitted in-line on radiators with DN20 connections to regulate the amount of heating medium delivered to each radiator. Factory presetting enables predictable flow rates and simplified hydraulic balancing, supporting stable room temperatures and efficient system operation.
Advantages
The valve provides stable temperature control through accurate flow limitation and works with standard thermostatic heads for individual room regulation. Factory presetting reduces the need for on-site calibration, speeding installation and ensuring consistent performance across multiple radiator circuits. Its straight design allows straightforward installation in typical radiator piping runs, and compatibility with DN20 fittings ensures broad applicability in residential and commercial heating systems.
Suitable for
Individual room temperature regulation in residential radiators
Hydraulic balancing of hot-water heating systems
Replacement or upgrade of existing DN20 radiator valves
Commercial premises with DN20 radiator connections
Key specifications
Connection type: straight in-line valve for radiator connection
Nominal size: DN20 suitable for standard 20 mm radiator fittings
Function: thermostatic control with factory presetting for predefined flow rates
Use: intended for hot-water (hydronic) central heating systems
Compatibility: designed to work with standard thermostatic actuator heads
How to use
Install the DN20 straight valve into the radiator supply or return line following the pipeline flow direction indicated on the valve body. Use the factory presetting to set the desired maximum flow for each radiator; final fine-tuning can be achieved by adjusting the thermostatic head. After installation, bleed the radiator and check for leaks. Commission the system by opening the thermostatic head and confirming that the radiator reaches the expected temperature while the valve maintains the preset flow balance across the system.
Usage recommendations
For reliable operation, pair the valve with a compatible thermostatic head from the same product family and perform hydraulic balancing during system commissioning. Regular visual inspections and occasional leak checks are recommended, and any maintenance or replacement should be performed with the heating system depressurised.

## FAQ

### How much does the Thermostatic radiator valve DN20 DANFOSS 90482000521 cost, and is it available for purchase?

The price is 21.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 10 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 07.07.2026 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. All transactions are 100% secure and encrypted.

### 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 DANFOSS 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 DANFOSS 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. More information about warranty service: https://aio.lv/en/warranty

## Image

https://aio.lv/img/cache/product/11699885/67083093_large.webp