# Expansion vessel for heating Reflex 25 l

**URL:** https://aio.lv/en/product--reflex-4036705197918--11252576
**Data updated:** 2026-03-11 12:03 (EET)
**Category:** Heating Radiators
**Manufacturer:** Reflex
**Manufacturer code:** 4036705197918
**EAN:** 4036705197918
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 56.49 €
**Prices and availability valid until:** 2026-07-13 23:59
**Price without VAT (21%):** 46.69 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--reflex-4036705197918--11252576

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 08.07.2026 | free |
| Pickup points | 13.07.2026 | 1.99 EUR |
| Courier delivery to door | 13.07.2026 | 4.99 EUR |

## Summary description

Expansion vessel for heating systems by Reflex with 25-liter nominal volume. Designed to absorb thermal expansion of heating medium and maintain system pressure balance. Typical use in closed residential or commercial hot-water heating installations. Key attributes: diaphragm-type pressure vessel, connection to heating circuit, prevents overpressure and reduces loss of water and strain on components.

## Long description

Reflex expansion vessel with a nominal volume of 25 liters, designed for closed hot-water heating systems. The diaphragm-type pressure vessel accommodates thermal expansion of the heating medium and helps stabilise system pressure during temperature changes. It is intended for installation on the heating circuit to reduce pressure peaks, limit water loss and decrease mechanical stress on system components.
Advantages
The diaphragm design separates the air and liquid volumes to maintain consistent pre-charge pressure and reduce gas absorption into the heating medium. Its 25 l capacity makes it suitable for typical residential and small commercial installations where moderate expansion volumes are required. By smoothing pressure fluctuations the vessel contributes to longer service life of pumps, valves and heat exchangers and helps prevent frequent automatic venting or safety valve activation.
Suitable for
Closed hot-water heating systems in residential buildings
Small commercial heating installations
Systems requiring reduction of pressure peaks and water losses
Installations where a compact 25 l expansion capacity is sufficient
Key specifications
Nominal volume: 25 litres
Diaphragm-type pressure vessel separating air and liquid
Designed for closed heating circuits
Compact cylindrical body suitable for wall or pipe mounting
Materials compatible with standard heating media (water/glycol mixtures)
How to use
Install the expansion vessel on the return pipe of the heating circuit or at the location recommended by the system designer, ensuring secure mechanical support and correct orientation. Pre-charge the vessel to the system pre-charge pressure specified for the heating installation and check for leaks. During commissioning, verify that the vessel absorbs expansion and that system pressure remains within the target range when the system heats up and cools down. Periodic visual inspections and pressure checks of the pre-charge are recommended as part of routine maintenance.
Usage recommendations
Confirm compatibility of the vessel’s pre-charge pressure with the system filling pressure before installation. Use appropriate fittings and isolation valves to allow safe removal and servicing of the vessel without draining the entire system. Schedule annual checks of the diaphragm and pre-charge pressure to ensure ongoing performance.

## FAQ

### How much does the Expansion vessel Reflex 25 l cost, and is it available for purchase?

The price is 56.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 49 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 08.07.2026 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 Reflex 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 Reflex 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/11252576/68517093_large.webp