# Giacomini R156 Thermostatic Mixing Valve 3/4" FF

**URL:** https://aio.lv/en/product--giacomini-r156x004--12525820
**Data updated:** 2026-06-17 08:22 (EEST)
**Category:** Other goods
**Manufacturer:** GIACOMINI
**Manufacturer code:** R156X004
**EAN:** 2000509964047
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 65.49 €
**Prices and availability valid until:** 2026-07-26 23:59
**Price without VAT (21%):** 54.12 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--giacomini-r156x004--12525820

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 03.07.2026 | free |
| Pickup points | 08.07.2026 | 1.89 EUR |
| Courier delivery to door | 08.07.2026 | 4.99 EUR |

## Summary description

The Giacomini R156 is a high-quality thermostatic mixing valve designed for precise temperature control in domestic hot water systems. Featuring 3/4" female threaded connections, this valve ensures reliable mixing of hot and cold water to maintain a constant output temperature. It is an essential component for improving safety and energy efficiency in heating and plumbing installations, providing consistent performance and durability for residential applications.

## Long description

The Giacomini R156 Thermostatic Mixing Valve is a precision-engineered component designed to regulate water temperature in domestic hot water systems. By blending hot and cold water supplies, this valve ensures a stable and safe output temperature, which is critical for preventing scalding and optimizing the efficiency of plumbing installations. Constructed from high-quality brass, the R156 is built for long-term durability and consistent performance in residential environments.
Advantages
The primary benefit of the Giacomini R156 is its ability to maintain a constant, pre-set water temperature regardless of fluctuations in the supply pressure or temperature of the incoming hot and cold water. This reliability enhances user safety by mitigating the risk of thermal shocks or accidental burns. Furthermore, the robust brass construction provides excellent resistance to corrosion and mechanical wear, ensuring that the valve remains a dependable part of your plumbing infrastructure for many years. Its compact design allows for straightforward integration into existing systems without requiring extensive modifications.
Suitable for
Domestic hot water distribution systems
Solar thermal installations
Point-of-use temperature regulation
Residential heating and plumbing circuits
This valve may not be suitable for industrial applications requiring extremely high flow rates that exceed the capacity of a 3/4-inch connection. Additionally, it is not intended for use with aggressive chemical fluids or systems where the water quality is highly corrosive, as this could compromise the internal brass components over time.
Key specifications
Connection type: 3/4 inch female thread
Material: Brass
Operating temperature range: 5°C to 100°C
Maximum working pressure: 16 Bar
How to use
The Giacomini R156 should be installed by a qualified professional to ensure all connections are properly sealed and the system is pressure-tested. The valve is typically installed at the outlet of the hot water storage tank or at the point of use. Once installed, the desired output temperature is set according to the manufacturer's guidelines. Regular checks should be performed to ensure the valve continues to operate within the specified temperature parameters.
What to consider before purchase
Verify that the 3/4-inch female thread matches your existing pipework
Ensure the system operating pressure does not exceed 16 Bar
Confirm that the intended application falls within the 5°C to 100°C temperature range
Check for sufficient space in the installation area for future maintenance access
Usage recommendations: It is recommended to install isolation valves on both the hot and cold water inlets to facilitate easier maintenance or replacement of the mixing valve without draining the entire system.

## FAQ

### How much does the Giacomini R156 Thermostatic Mixing Valve 3/4" cost, and is it available for purchase?

The price is 65.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 4 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 03.07.2026 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 GIACOMINI 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 GIACOMINI 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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