# Expansion vessel Reflex N for central heating, model N 300 L (8215300), 300 litres

**URL:** https://aio.lv/en/product--reflex-8215300--12036909
**Data updated:** 2026-03-12 16:45 (EET)
**Category:** Heating Radiators
**Manufacturer:** Reflex
**Manufacturer code:** 8215300
**EAN:** 4036705110108
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 535.49 €
**Prices and availability valid until:** 2026-07-13 23:59
**Price without VAT (21%):** 442.55 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--reflex-8215300--12036909

## 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

Reflex N expansion vessel for central heating systems, model N 300 L (8215300) with 300 litres nominal volume. Designed to accommodate thermal expansion and maintain system pressure in closed C.O. installations. Features a diaphragm separating air and water, connection fittings for integration into heating circuits, and corrosion-resistant construction for reliable long-term operation in residential or commercial heating applications.

## Long description

Reflex N expansion vessel, model N 300 L, is a 300-litre closed-system accumulator designed for central heating installations. It accommodates thermal expansion of the heating medium and helps maintain stable system pressure in closed C.O. systems. The vessel uses a flexible diaphragm to separate the water from the pre-charged air cushion, and its corrosion-resistant construction ensures durable service life in both residential and light-commercial heating applications.
Advantages
The diaphragm design prevents direct contact between the water and the air cushion, reducing gas absorption and maintaining pressure stability. Built from corrosion-resistant materials, the vessel is suitable for long-term operation and requires minimal maintenance. Its 300-litre capacity makes it appropriate for medium to large heating circuits, helping to avoid frequent relief-valve discharge and to reduce load on circulation components.
Suitable for
Closed central heating systems in residential apartment blocks
Commercial heating circuits in small to medium-sized buildings
Installations requiring thermal expansion compensation for water-based heating
Systems where pressure stability and reduced maintenance are priorities
Key specifications
Nominal volume: 300 litres
Type: closed expansion vessel with diaphragm
Function: accommodates thermal expansion and stabilises system pressure
Connection: fittings for integration into heating circuits (standard connection type for central heating)
Construction: corrosion-resistant materials for durable operation
How to use
Install the expansion vessel on the return or other recommended point in the heating circuit according to the installation instructions and local codes. Pre-charge the air side to the specified pressure for the system fill pressure before commissioning, and verify that the diaphragm moves freely with system temperature changes. Ensure correct mechanical support and piping to avoid stress on connections. During routine service, check pre-charge pressure and inspect for external leaks or damage.
Usage recommendations
Set the pre-charge pressure to match the static filling pressure of the heating system minus the recommended margin; re-check the pre-charge after the system is filled and depressurised. Use appropriate mounting brackets and vibration isolation where required, and follow local regulations for placement and safety. For optimal long-term performance, include the expansion vessel in regular heating system maintenance checks.

## FAQ

### How much does the Expansion vessel Reflex N 300 L (N 300L) cost, and is it available for purchase?

The price is 535.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 2 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, Installment. All transactions are 100% secure and encrypted.

### Can Expansion vessel Reflex N 300 L (N 300L) be purchased with a lease?

Yes, the purchase is available both on credit and with an interest-free installment plan. Learn more about installments and credit options: https://aio.lv/en/payment#b3

### 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/12036909/67524218_large.webp