# Thermostatic radiator valve straight Herz 1/2" model 1772391

**URL:** https://aio.lv/en/product--herz-1772391--11700012
**Data updated:** 2026-03-08 08:45 (EET)
**Category:** Heating Radiators
**Manufacturer:** Herz
**Manufacturer code:** 1772391
**EAN:** 9004174707001
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 18.49 €
**Prices and availability valid until:** 2026-07-14 23:59
**Price without VAT (21%):** 15.28 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--herz-1772391--11700012

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 06.07.2026 | free |
| Pickup points | 09.07.2026 | 1.99 EUR |
| Courier delivery to door | 09.07.2026 | 4.99 EUR |

## Summary description

Straight thermostatic radiator valve Herz 1/2" (model 1772391) for controlling flow to radiators. Designed to receive a thermostatic head (sold separately), it permits automatic temperature regulation by adjusting heat output. Suitable for residential and commercial central heating systems with 1/2" connections, for replacing or installing radiator control valves.

## Long description

Straight thermostatic radiator valve Herz 1/2" model 1772391 is a compact control fitting for central heating radiators. Designed to accept a separate thermostatic head, this valve enables automatic modulation of hot water flow into a radiator to maintain a set room temperature. The straight connection and 1/2" thread size make it suitable for direct installation on radiators with matching inlet fittings in residential and commercial heating systems.
Advantages
The valve provides precise flow control when combined with a thermostatic head, allowing stable indoor temperature and energy-efficient operation. Its straight-body design simplifies installation in standard radiator connections and replacement jobs. Constructed for compatibility with common central heating setups, the valve offers reliable operation and straightforward maintenance without requiring additional adapters when installed on 1/2" compatible radiators.
Suitable for
Domestic and apartment radiators with 1/2" inlet connections
Commercial heating installations where individual radiator control is needed
Replacement of existing straight radiator valves with 1/2" threads
New radiator installations requiring thermostatic control heads (sold separately)
Key specifications
Connection type: straight radiator valve with 1/2" threaded inlet
Function: thermostatic valve body designed to accept a thermostatic head for automatic temperature regulation
Application: central heating radiators in residential and commercial buildings
Material and finish: corrosion-resistant metal construction suitable for hot water systems (manufacturer standard)
Mounting: inline installation directly to radiator inlet with standard fittings
How to use
Install the valve on the radiator inlet using the matching 1/2" connection, ensuring sealing with appropriate fittings or tape as required by the radiator manufacturer. After mechanical installation, attach a compatible thermostatic head (sold separately) to the valve spindle following the head manufacturer's instructions. The thermostatic head will sense ambient temperature and modulate the valve to control flow and maintain the setpoint. For safe and correct installation, isolate the heating circuit and drain the radiator before removal or fitting of the valve.
Usage recommendations
The valve should be paired with a Herz-compatible thermostatic head or another head that matches the valve's mounting interface. Use on systems with correct water quality and pressure for central heating; perform periodic checks for leaks and ensure the valve spindle moves freely when servicing. For best results, balance the heating system after installation to ensure even heat distribution.

## FAQ

### How much does the Thermostatic radiator valve Herz 1/2" 1772391 cost, and is it available for purchase?

The price is 18.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 22 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 06.07.2026 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 Herz 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 Herz 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/11700012/67083187_large.webp