# Expansion vessel (diaphragm) CIMM ERE 08L for central heating 8 L, 1.5/4 bar, -10 to +100°C

**URL:** https://aio.lv/en/product--cimm-820008--12047548
**Data updated:** 2026-03-12 19:29 (EET)
**Category:** Home Appliance Accessories
**Manufacturer:** CIMM
**Manufacturer code:** 820008
**EAN:** 8033003527429
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 30.49 €
**Prices and availability valid until:** 2026-07-12 23:59
**Price without VAT (21%):** 25.20 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--cimm-820008--12047548

## 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

Diaphragm expansion vessel CIMM ERE 08L for central heating systems. Capacity 8 L, pre-charge 1.5/4 bar, operating temperature range −10 to +100°C. Designed to absorb thermal expansion of heating fluid, maintain system pressure and protect components from overpressure. Suitable for residential and small commercial boilers, radiators and closed-loop heating circuits.

## Long description

The CIMM ERE 08L diaphragm expansion vessel is designed for central heating systems to absorb thermal expansion of the heating fluid and to stabilise system pressure. With an 8-litre capacity and a pre-charge range of 1.5/4 bar, it supports closed-loop heating circuits across a working temperature range from −10 to +100°C. The vessel is compatible with residential and small commercial boilers, radiators and pressurised heating installations where prevention of overpressure and protection of system components are required.
Advantages
The diaphragm design separates the gas and liquid sides to reduce air absorption and prolong membrane life while ensuring reliable pressure compensation. Compact dimensions and standard connection options allow straightforward integration into existing heating systems. The specified temperature tolerance and pressure pre-charge make the vessel suitable for a wide range of central heating applications, offering predictable performance and lower maintenance needs.
Suitable for
Residential central heating systems
Small commercial boiler installations
Radiator circuits and underfloor heating loops
Closed-loop hot water circulation systems
Key specifications
Capacity: 8 litres
Pre-charge pressure: 1.5/4 bar
Operating temperature range: −10 to +100°C
Diaphragm (membrane) internal separation
Designed for closed-loop central heating systems
How to use
Install the expansion vessel according to the heating system designer's instructions and local regulations, mounting it at a suitable accessible location on the return or supply line as recommended for the specific installation. Verify and adjust the pre-charge pressure to match the static pressure of the heating system before commissioning. After connection, pressurise the system gradually, check for leaks and confirm that the vessel is absorbing pressure changes during boiler operation and thermal cycling.
Usage recommendations
Check the vessel’s pre-charge periodically and re-pressurise if required. Inspect the membrane for signs of failure and the external body for corrosion or damage during routine maintenance intervals. Use the vessel within its specified temperature and pressure ranges and follow manufacturer or installer guidance for replacement intervals and compatibility with system fluids.
product: Expansion vessel (diaphragm) CIMM ERE 08L for central heating 8 L, 1.5/4 bar, -10 to +100°C; brand: CIMM

## FAQ

### How much does the CIMM ERE 08L expansion vessel 8 L cost, and is it available for purchase?

The price is 30.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 71 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/12047548/67533990_large.webp