# Thermostatic radiator valve Herz HERZ-TS-E 3/4 straight gravity

**URL:** https://aio.lv/en/product--herz-221772302--11836276
**Data updated:** 2026-03-09 14:49 (EET)
**Category:** Heating Radiators
**Manufacturer:** Herz
**Manufacturer code:** 221772302
**EAN:** 9004174030888
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 25.99 €
**Prices and availability valid until:** 2026-07-17 23:59
**Price without VAT (21%):** 21.48 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--herz-221772302--11836276

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 09.07.2026 | free |
| Pickup points | 14.07.2026 | 1.99 EUR |
| Courier delivery to door | 14.07.2026 | 4.99 EUR |

## Summary description

Thermostatic radiator valve Herz HERZ-TS-E 3/4 is a straight gravity-operated valve for use in heating systems. Designed to regulate radiator flow and maintain set temperatures, it fits 3/4 connections and works without external power. Suitable for residential and commercial radiators where gravity or hydronic flow control is required.

## Long description

The Herz HERZ-TS-E 3/4 straight gravity thermostatic radiator valve is a mechanical flow-control device engineered for direct connection to radiators with 3/4-inch fittings. It operates without external power, using a gravity or hydronic differential to regulate hot water flow to the radiator and maintain a set temperature. The valve is intended for installation on both residential and commercial heating systems where reliable, self-acting temperature control is required.
Advantages
The valve provides stable temperature regulation through a simple mechanical thermostatic element, eliminating the need for electrical power or control wiring. Its straight-body design offers compact installation and direct alignment with radiator inlet piping. The device is compatible with standard 3/4 connections and is designed for durable operation in closed heating circuits. The gravity-operated function ensures continued regulation even when pump speeds vary or in gravity-fed systems.
Suitable for
Domestic radiators in central heating systems
Commercial radiator installations requiring self-acting temperature control
Gravity-fed or low-head hydronic heating circuits
Retrofit projects where a straight valve body and 3/4 connection are needed
Key specifications
Connection size: 3/4-inch straight-body fitting suitable for radiator inlets
Operation type: thermostatic, gravity-operated (hydronic differential driven)
Control method: mechanical thermostatic element for temperature regulation without electrical input
Application: intended for use in closed hot-water heating systems (radiators)
Installation orientation: straight inline mounting on radiator inlet pipework
How to use
Install the valve inline at the radiator inlet using compatible 3/4-inch fittings and ensure correct orientation for straight-body mounting. Set the thermostatic head to the desired room temperature according to the head's scale, allowing the mechanical element to modulate flow automatically. Commission the heating system, purge air from the radiator, and check for leaks at connections. The valve will regulate flow based on the temperature of the radiator or surrounding air and does not require electrical connection or external control input.
Usage recommendations
For reliable performance, use with properly sized radiators and ensure system cleanliness to avoid debris affecting the valve spindle and thermostatic element. During commissioning, balance the heating circuit as required and verify operation across the expected temperature range. If used in gravity-fed systems, confirm that flow rates are within the valve's effective operating range. Periodic inspection for leaks and correct setting of the thermostatic head is recommended.

## FAQ

### How much does the Thermostatic valve Herz HERZ-TS-E 3/4 cost, and is it available for purchase?

The price is 25.99 € (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 09.07.2026 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

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