# Expansion vessel FLAMCO Baseflex 80 L, 6 bar pressure for heating and domestic systems

**URL:** https://aio.lv/en/product--flamco-25307--12033168
**Data updated:** 2026-03-12 16:41 (EET)
**Category:** Home Appliance Accessories
**Manufacturer:** FLAMCO
**Manufacturer code:** 25307
**EAN:** 8712874253070
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 142.99 €
**Prices and availability valid until:** 2026-07-13 23:59
**Price without VAT (21%):** 118.17 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--flamco-25307--12033168

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 07.07.2026 | free |
| Pickup points | 10.07.2026 | 1.99 EUR |
| Courier delivery to door | 10.07.2026 | 4.99 EUR |

## Summary description

FLAMCO Baseflex expansion vessel, 80 litre capacity and 6 bar maximum pressure rating, designed for heating and domestic water systems. The diaphragm-type pressure vessel absorbs thermal expansion to protect pumps, valves and pipework, maintaining system pressure and preventing water hammer. Suitable for closed-loop boiler, solar or hot-water circuits where an 80 L buffer and 6 bar limit are required.

## Long description

The FLAMCO Baseflex 80 L expansion vessel is a diaphragm-type pressure vessel intended for heating and domestic water systems. With an 80-litre working volume and a 6 bar maximum pressure rating, it is designed to absorb thermal expansion and maintain stable system pressure in closed-loop boiler, solar thermal and hot-water circuits. The vessel separates water and air with a durable internal diaphragm to prevent corrosion and ensure consistent performance under variable temperature and pressure conditions.
Advantages
The expansion vessel provides reliable absorption of expansion water, reducing stress on pumps, valves and pipework. Its diaphragm design minimizes air dissolution into the system and helps maintain pressure balance, decreasing the risk of water hammer and frequent system venting. Constructed for compatibility with typical heating installations, it supports continuous operation within the rated pressure range and contributes to longer component service life.
Suitable for
Closed-loop central heating systems
Domestic hot-water circuits
Solar thermal installations with pressurised circuits
Boiler systems and hydronic heating networks requiring an 80 L buffer
Key specifications
Volume: 80 litres (working capacity)
Maximum allowable pressure: 6 bar
Diaphragm-type separation between air and water
Suitable for potable and heating water systems where applicable local codes allow
Corrosion-resistant internal lining and durable external casing
How to use
Install the expansion vessel at an appropriate location in the return line or near the boiler per system design and local regulations. Pre-charge the air side to the manufacturer's recommended pressure for the static system pressure before commissioning. Connect with suitable fittings and isolation valves to allow for pressure checks and maintenance. After filling the system, verify the vessel pre-charge and system pressure under operating temperature to ensure correct absorption of thermal expansion.
Usage recommendations
Check and adjust the pre-charge pressure periodically, especially after major system work or prolonged downtime. Ensure compatibility with system fluids and local standards; if uncertain, consult a qualified heating engineer to confirm sizing and installation details for optimal system protection.

## FAQ

### How much does the Expansion vessel FLAMCO Baseflex 80 L 6 bar cost, and is it available for purchase?

The price is 142.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 13 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 07.07.2026 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 FLAMCO Baseflex 80 L 6 bar 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 FLAMCO 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 FLAMCO 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/12033168/67520651_large.webp