# Expansion vessel VAREM LR CE 25 L, 3/4" gas connection, max 6 bar

**URL:** https://aio.lv/en/product--varem-ur025231cs0a2000--9517576
**Data updated:** 2026-03-12 16:26 (EET)
**Category:** Home Appliance Accessories
**Manufacturer:** VAREM
**Manufacturer code:** UR025231CS0A2000
**EAN:** 8034108706993
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 29.49 €
**Prices and availability valid until:** 2026-07-13 23:59
**Price without VAT (21%):** 24.37 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--varem-ur025231cs0a2000--9517576

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | Friday | free |
| Pickup points | 26.06.2026 | 1.99 EUR |
| Courier delivery to door | 26.06.2026 | 4.99 EUR |

## Summary description

Diaphragm expansion vessel VAREM LR CE with 25 L capacity, 3/4" gas connection and maximum working pressure 6 bar. Designed to absorb thermal expansion in closed heating and hot water systems, it features a pre-charged gas side and a water-side connection suitable for boilers, heat pumps and solar circuits. Used for pressure stabilization, protecting pipes and components from overpressure and frequent pump cycling.

## Long description

The VAREM LR CE 25 L expansion vessel is a diaphragm-type pressure vessel with 25 litres nominal capacity, designed for closed heating and hot water systems. It has a 3/4" gas-side valve connection and is rated for a maximum working pressure of 6 bar. The vessel is factory pre-charged on the gas side and provides a water-side connection suitable for boilers, heat pumps and solar thermal circuits. Its function is to absorb thermal expansion, stabilise system pressure and reduce cycling of pumps and thermostatic devices.
Advantages
The expansion vessel uses a separating diaphragm to isolate the gas pre-charge from the system water, minimising gas diffusion and allowing consistent pressure control. With a 25 L capacity and 6 bar maximum working pressure, it is suitable for typical domestic and light commercial heating and hot water installations. The 3/4" gas connection simplifies topping up and service, while the compact cylindrical design facilitates installation in tight plant rooms or near the heat source. The product is compatible with common system fluids and can be mounted vertically or horizontally following manufacturer guidance.
Suitable for
Domestic and small commercial closed heating systems
Domestic hot water (DHW) systems and indirect cylinders
Boiler installations and combi-boilers
Heat pump buffer and circulation systems
Solar thermal circuits with closed-loop operation
Key specifications
Nominal volume: 25 litres
Maximum working pressure: 6 bar
Valve connection (gas side): 3/4"
Diaphragm (separating membrane) type vessel
Factory pre-charged gas side
Suitable for closed heating and solar systems
Compact cylindrical construction for wall or floor mounting
How to use
Install the expansion vessel on the system pressure line according to system design and local regulations, typically on the return line near the heat source. Before connection, verify the pre-charge pressure on the gas valve and adjust to the required setpoint for the specific system (static pressure without water). After making hydraulic connections, bleed the system to remove trapped air and check for leaks. Commission the system while monitoring pressure changes during a controlled heat-up to confirm correct vessel sizing and operation.
Usage recommendations
Check the vessel pre-charge periodically and re-pressurise when the system is cold to the required static pressure. Use corrosion-inhibited water where specified and follow local codes for pressure limiting and safety devices to ensure the expansion vessel protects piping and components effectively.

## FAQ

### How much does the Expansion vessel VAREM LR CE 25 L cost, and is it available for purchase?

The price is 29.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 136 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 Friday 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 VAREM 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 VAREM 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

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