# Expansion vessel for central heating CIMM ERE 12 L, pre-charge 1.5/4 bar, temperature -10 to +100 °C

**URL:** https://aio.lv/en/product--cimm-820012--12064610
**Data updated:** 2026-03-20 09:50 (EET)
**Category:** Home Appliance Accessories
**Manufacturer:** CIMM
**Manufacturer code:** 820012
**EAN:** 8033003527443
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 35.49 €
**Prices and availability valid until:** 2026-07-12 23:59
**Price without VAT (21%):** 29.33 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--cimm-820012--12064610

## 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

Membrane expansion vessel CIMM ERE 12 L for central heating (CO) systems. Nominal volume 12 liters with factory pre-charge 1.5/4 bar and operating temperature range -10 to +100 °C. Designed to absorb expansion of heating medium, maintain system pressure stability and protect components from pressure surges. Suitable for residential and small commercial heating installations.

## Long description

Membrane expansion vessel CIMM ERE 12 L is designed for central heating systems to absorb volume changes of the heating medium and stabilize system pressure. With a nominal volume of 12 liters and a factory pre-charge of 1.5/4 bar, this vessel supports continuous operation in a temperature range from -10 to +100 °C. The diaphragm separates the pressurized air chamber from the liquid side, reducing the risk of corrosion and preserving system components by accommodating thermal expansion and pressure fluctuations.
Advantages
The CIMM ERE 12 L provides consistent pressure compensation thanks to its pre-charged diaphragm design, enabling quick response to pressure increases during heating cycles. Its wide operating temperature range makes it suitable for diverse climates and system conditions. The compact volume and standardized connections simplify installation in residential and small commercial systems while protecting pumps, valves and heat exchangers from pressure shocks.
Suitable for
 Residential central heating systems
 Small commercial heating installations
 Boilers and heat generator circuits requiring pressure stabilization
 Systems where thermal expansion compensation is required
Key specifications
 Nominal volume: 12 liters
 Factory pre-charge pressure: dual 1.5/4 bar
 Operating temperature range: -10 °C to +100 °C
 Diaphragm (membrane) type separation
 Intended medium: closed central heating fluid
How to use
Install the expansion vessel on the return line or at a location recommended by the heating system designer, ensuring the vessel is mounted vertically and securely. Verify and, if necessary, adjust the pre-charge pressure to match the static system pressure before filling. After installation, perform a system fill and venting procedure to remove air pockets, then check the vessel and system pressure during a heating cycle to confirm correct operation.
Usage recommendations
Regularly inspect the vessel for external damage and monitor system pressure periodically. Before maintenance, isolate and depressurize the section of the system containing the vessel. Match the pre-charge to the installed system’s static pressure and consult the heating system documentation or a qualified technician if adjustments are required.

## FAQ

### How much does the CIMM ERE 12 L expansion vessel for central heating cost, and is it available for purchase?

The price is 35.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 170 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. 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 CIMM 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 CIMM 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/12064610/67549946_large.webp