# Expansion vessel (diaphragm) CIMM ERE 24L for central heating, 24 L, 1.5/3.5 bar, -10 to +100°C

**URL:** https://aio.lv/en/product--cimm-820024--12053694
**Data updated:** 2026-03-12 19:36 (EET)
**Category:** Home Appliance Accessories
**Manufacturer:** CIMM
**Manufacturer code:** 820024
**EAN:** 8033003527474
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 46.49 €
**Prices and availability valid until:** 2026-07-15 23:59
**Price without VAT (21%):** 38.42 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--cimm-820024--12053694

## 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 24L designed for closed central heating (CO) systems. Nominal volume 24 litres, precharge range 1.5/3.5 bar and operating temperature -10 to +100°C. Provides pressure compensation, protects system components from overpressure and thermal expansion, and is suitable for small to medium heating installations.

## Long description

Diaphragm expansion vessel CIMM ERE 24L for central heating is designed for closed central heating systems to absorb thermal expansion and stabilize system pressure. With a nominal volume of 24 litres and an adjustable precharge from 1.5 to 3.5 bar, the vessel works across an operating temperature range from -10 to +100°C. The compact steel tank with an internal elastomer diaphragm separates the heating medium from the precharged gas chamber, providing consistent pressure compensation and protecting pumps, valves and pipes from pressure spikes.
Advantages
The CIMM ERE 24L offers dependable pressure control for small to medium heating installations without requiring additional space or complex fittings. The diaphragm design prevents waterlogging and reduces corrosion risk, while the wide operating temperature range allows use in most residential and commercial central heating circuits. Its factory-set precharge can be adjusted to match system requirements, improving system efficiency and longevity.
Suitable for
Closed central heating systems in residential buildings
Small to medium commercial heating circuits
Boiler and hydronic heating installations requiring pressure compensation
Replacement or retrofit projects for existing expansion vessels
Key specifications
Nominal volume: 24 litres
Precharge (adjustable): 1.5–3.5 bar
Operating temperature range: -10 to +100°C
Vessel type: diaphragm (elastomer membrane) expansion tank
Application: closed central heating systems
How to use
Install the expansion vessel on the return line or at a location recommended by the heating system designer, ensuring correct orientation and secure mounting. Match the precharge pressure to the static system pressure before commissioning: depressurize the system if necessary, measure static pressure at the filling valve and adjust the vessel precharge accordingly. After installation, purge air from the system and check for leaks. Periodic checks of precharge and visual inspection of mounting points are advisable to ensure continued performance.
Usage recommendations
For reliable operation, set the vessel precharge slightly above the system’s cold static pressure and perform annual inspections. Avoid installing the vessel in locations exposed to freezing temperatures below the specified range or to aggressive chemicals. When replacing an existing vessel, verify nominal volume and precharge compatibility with the system to maintain correct pressure management.

## FAQ

### How much does the CIMM ERE 24L expansion vessel for heating cost, and is it available for purchase?

The price is 46.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 121 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/12053694/67539764_large.webp