# Thermostatic straight valve Comap R809, 1/2" connection, Kv 0.55, without preset

**URL:** https://aio.lv/en/product--comap-r809604--11700295
**Data updated:** 2026-03-08 08:46 (EET)
**Category:** Heating Radiators
**Manufacturer:** Comap
**Manufacturer code:** R809604
**EAN:** 3430650406049
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 14.49 €
**Prices and availability valid until:** 2026-07-08 23:59
**Price without VAT (21%):** 11.98 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--comap-r809604--11700295

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 30.06.2026 | free |
| Pickup points | 03.07.2026 | 1.99 EUR |
| Courier delivery to door | 03.07.2026 | 4.99 EUR |

## Summary description

Thermostatic straight valve Comap R809 for hydronic heating systems with 1/2" connection and flow coefficient Kv 0.55. This model is supplied without presetting and is designed to regulate temperature by controlling flow to radiators or convectors. Suitable for use in residential or light commercial installations where compact thermostatic control is required.

## Long description

Thermostatic straight valve Comap R809 with 1/2" connection and Kv 0.55 is a compact control valve intended for hydronic heating systems. Supplied without preset, this valve is designed to regulate radiator or convector flow in response to a thermostatic head. Its straight-body design and standard 1/2" connection make it compatible with common residential and light commercial installations where space-efficient temperature control is required.
Advantages
The straight configuration offers a compact footprint and straightforward installation on radiator or convector inlet pipes. A Kv 0.55 flow coefficient provides predictable flow control suited to typical room heating circuits. Being supplied without a preset allows installers to set balancing and flow rates on site to match system requirements. The valve is manufactured to industry norms for hydronic components and is compatible with standard thermostatic heads for automatic temperature regulation.
Suitable for
 Residential radiator heating systems
 Light commercial heating circuits
 Replacement of existing straight thermostatic valves with 1/2" connection
 Applications where compact thermostatic control is required
Key specifications
 Connection size: 1/2" (straight inline)
 Flow coefficient (Kv): 0.55 m3/h
 Type: Thermostatic straight valve (delivered without presetting)
 Compatibility: Designed for use with standard thermostatic heads for temperature control
 Application: Hydronic radiator and convector circuits
How to use
Install the valve in the return or supply line to the radiator or convector using the 1/2" connection, observing correct flow direction and sealing practice. Fit a compatible thermostatic head on the valve spindle to provide automatic temperature regulation. If balancing is required, set the desired flow by adjusting the presetting mechanism after installation; this model is supplied without preset so initial adjustment must be performed on site. Commission the circuit by purging air, checking for leaks, and verifying that the thermostat head and valve respond correctly to setpoint changes.
Usage recommendations
Use corrosion-resistant fittings and observe manufacturer guidelines for system water quality. When replacing an existing valve, confirm dimensional compatibility and flow requirements. For optimal control, pair the valve with a thermostatic head suited to the room’s heating load and ensure the system is balanced after installation.

## FAQ

### How much does the Thermostatic straight valve Comap R809 1/2" Kv 0.55 cost, and is it available for purchase?

The price is 14.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 14 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 30.06.2026 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 Comap 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 Comap 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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