# Expansion Vessel VAREM EXPANSION VESSELS 5-40 L HOOK – 5–40 L capacity, hooked mounting

**URL:** https://aio.lv/en/product--varem-acbrk54000wlm000--4575496
**Data updated:** 2026-03-13 15:49 (EET)
**Category:** Home Appliance Accessories
**Manufacturer:** VAREM
**Manufacturer code:** ACBRK54000WLM000
**EAN:** 4770364018848
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 14.49 €
**Prices and availability valid until:** 2026-07-23 23:59
**Price without VAT (21%):** 11.98 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--varem-acbrk54000wlm000--4575496

## 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 VESSELS 5-40 L HOOK is a pressure expansion vessel designed for closed heating and domestic water systems with capacities in the 5–40 litre range. The hooked mounting allows secure installation on walls or frames. It accommodates system pressure fluctuations, protects against overpressure, and reduces pump cycling—suitable for boilers, water heaters and circulation systems.

## Long description

VAREM EXPANSION VESSELS 5-40 L HOOK is a pressure expansion vessel intended for closed heating and domestic water systems with capacities from 5 to 40 litres. The vessel features a hooked mounting that enables secure attachment to walls or frames and is designed to absorb pressure fluctuations in the circuit. It reduces pump cycling, helps maintain stable system pressure and provides protection against overpressure in boilers, water heaters and circulation loops.
Advantages
The hooked mounting simplifies installation in confined plant rooms or on boiler frames without additional brackets. A bladder-type internal separator ensures separation between system fluid and the pre-charged gas chamber, maintaining consistent performance over repeated cycles. The range covers multiple capacities between 5 and 40 litres so installers can select an appropriately sized vessel to limit waterlogging and extend pump life.
Suitable for
 Closed central heating systems
 Domestic hot water systems (indirect water heaters)
 Boiler and combi boiler pressure control
 Circulation and recirculation loops
 Small commercial or residential hydronic installations
Key specifications
 Capacity range: 5–40 litres
 Mounting type: hooked wall/frame mounting
 Internal design: bladder/separator style vessel
 Function: absorbs pressure fluctuations and reduces pump cycling
 Application: closed heating and domestic water circuits
How to use
Mount the expansion vessel using the integrated hook to a suitable structural point that can safely carry the filled weight. Connect the vessel to the system at the designated pressure line using appropriate fittings and ensure the connection is leak-tight. Pre-charge pressure should be set to match system static pressure; check and adjust with a pressure gauge and air valve before commissioning. During system start-up, verify that the vessel accepts and releases fluid as pressure varies and inspect connections for proper sealing.
Usage recommendations
Check the pre-charge pressure periodically and top up or bleed the vessel according to the system manufacturer’s guidelines. Select the vessel capacity based on system volume and maximum allowable pressure variation to minimise waterlogging and excessive pump cycling. During routine maintenance, inspect the bladder for signs of deterioration and replace the vessel if leaks or loss of pre-charge are detected.

## Specifications

| Feature | Value |
|---|---|
| Weight | 0.06 kg |

## FAQ

### How much does the VAREM EXPANSION VESSELS 5-40 L HOOK expansion vessel cost, and is it available for purchase?

The price is 14.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 360 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

https://aio.lv/img/cache/product/4575496/65968645_large.webp