# Straight Valve Danfoss RLV-KB 1/2 (model 003L0392) — thermostatic radiator valve connection 1/2"

**URL:** https://aio.lv/en/product--danfoss-003l0392--4580761
**Data updated:** 2026-03-07 14:49 (EET)
**Category:** Heating Radiators
**Manufacturer:** DANFOSS
**Manufacturer code:** 003L0392
**EAN:** 5714279001631
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 11.99 €
**Prices and availability valid until:** 2026-07-11 23:59
**Price without VAT (21%):** 9.91 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--danfoss-003l0392--4580761

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 17.06.2026 | free |
| Pickup points | 22.06.2026 | 1.99 EUR |
| Courier delivery to door | 22.06.2026 | 4.99 EUR |

## Summary description

Danfoss RLV-KB straight valve model 003L0392 is a 1/2" connection thermostatic radiator valve designed for regulating flow to radiators. It provides a compact straight inline connection for heating systems, compatible with standard 1/2" fittings. Use for temperature control and flow balancing in residential or commercial hot-water radiator installations.

## Long description

Danfoss RLV-KB straight valve model 003L0392 is a thermostatic radiator valve with a 1/2" straight inline connection designed for regulating flow to hot-water radiators. The valve is intended to be installed in residential and commercial heating circuits where a compact, straight connection is required. It enables controlled flow and temperature regulation when paired with a compatible thermostatic actuator or head and fits standard 1/2" fittings for straightforward integration into existing radiator inlet piping.
Advantages
The straight design provides a compact footprint that is suitable for limited space installations and simplifies alignment with radiator inlet pipes. The valve offers reliable flow control for radiator circuits, aiding in temperature balancing across a heating system. Compatibility with standard 1/2" connections reduces the need for additional adapters and supports straightforward replacement or retrofit work.
Suitable for
Domestic hot-water radiator installations
Commercial radiator systems with 1/2" connections
Retrofit projects replacing existing straight radiator valves
Hydronic systems requiring individual radiator flow control
Key specifications
Connection type: straight inline
Connection size: 1/2" compatible fittings
Function: thermostatic radiator valve for flow regulation
Application: hot-water radiator circuits in residential and commercial systems
How to use
Install the valve in the radiator inlet line using standard 1/2" fittings, ensuring the valve orientation matches flow direction indicated by the manufacturer. Mount a compatible thermostatic actuator or head onto the valve body to enable temperature-dependent control. After installation, bleed the radiator to remove trapped air and check for leaks at joints. Adjust the thermostatic head according to required room temperatures and balance the system by setting appropriate flow levels at each radiator valve.
Usage recommendations
Use the valve with a thermostatic head from the same compatibility range to ensure reliable sensing and control. During installation, verify that pipework is clean and free of debris to prevent valve seat wear. For optimal system balance, combine the valves with a systematic commissioning procedure and periodic maintenance checks to confirm correct operation and leak-free connections.

## Specifications

| Feature | Value |
|---|---|
| Weight | 0.44 kg |

## FAQ

### How much does the Danfoss RLV-KB 1/2 Straight Valve 003L0392 cost, and is it available for purchase?

The price is 11.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 66 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 17.06.2026 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

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