# Expansion vessel VAREM R1002828, 2 L, diaphragm pressure accumulator for heating and domestic systems

**URL:** https://aio.lv/en/product--varem-r1002823s4000000--11105550
**Data updated:** 2026-03-07 18:15 (EET)
**Category:** Home Appliance Accessories
**Manufacturer:** VAREM
**Manufacturer code:** R1002823S4000000
**EAN:** 8034108701349
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 20.49 €
**Prices and availability valid until:** 2026-07-21 23:59
**Price without VAT (21%):** 16.93 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--varem-r1002823s4000000--11105550

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 01.07.2026 | free |
| Pickup points | 06.07.2026 | 1.89 EUR |
| Courier delivery to door | 06.07.2026 | 4.99 EUR |

## Summary description

VAREM expansion vessel R1002828 is a 2-litre diaphragm pressure accumulator designed to absorb pressure fluctuations in closed heating and domestic water systems. The compact vessel reduces water hammer and protects pumps and piping by maintaining system pressure balance. Suitable for small boilers, hot-water circuits and circulation loops in residential and light commercial installations.

## Long description

VAREM expansion vessel R1002828 is a 2-litre diaphragm pressure accumulator engineered for closed heating and domestic water systems. The compact steel-bodied vessel with internal elastomer diaphragm separates air and water to stabilise pressure, absorb thermal expansion and reduce water hammer. Its small footprint makes it suitable for installation near small boilers, hot-water circuits and domestic circulation loops where maintaining steady system pressure and protecting pumps and piping are important.
Advantages
The diaphragm design prevents air dissolution into the system, ensuring consistent pressure response and longer service life for circulating pumps and valves. With a 2-litre capacity it provides effective pressure dampening in small-volume installations while occupying minimal space. The durable construction resists corrosion and the pre-charged gas side simplifies commissioning and reduces maintenance frequency compared with open or non-diaphragm solutions.
Suitable for
Domestic and small residential central heating systems
Small hot-water and sanitary circulation loops
Boiler feed and closed-loop circulation protection
Light commercial installations with low volumetric requirements
Key specifications
Nominal volume: 2 litres
Diaphragm (membrane) type separation between gas and liquid
Intended for closed heating and domestic water systems
Compact steel body suitable for tight installation spaces
Pre-charged gas side for immediate operation after installation
How to use
Install the expansion vessel on the return pipe or at a location recommended by the system designer, ensuring the vessel is oriented and supported according to local regulations. Verify the pre-charge pressure on the gas side and adjust to match the static system pressure before connecting to the hydraulic circuit. After connection, fill the system and bleed air from the circuit; check for correct operating pressure and leak tightness. Periodically inspect the external condition and measure pre-charge pressure during routine maintenance to confirm continued performance.
Usage recommendations
Match the vessel pre-charge to the static pressure of the heating system and follow manufacturer or local plumbing standards for mounting and safety. For best results in small-volume systems, combine the 2-litre vessel with proper air separation and regular system flushing to reduce the likelihood of air accumulation and corrosion.

## FAQ

### How much does the VAREM R1002828 expansion vessel, 2 L cost, and is it available for purchase?

The price is 20.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 22 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 01.07.2026 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 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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