# Expansion Vessel (Open Horizontal) Kaps 50 L for Central Heating - Model C413501050

**URL:** https://aio.lv/en/product--kaps-c413501050--12243481
**Data updated:** 2026-04-01 09:51 (EEST)
**Category:** Heating Radiators
**Manufacturer:** Kaps
**Manufacturer code:** C413501050
**EAN:** 5901867638359
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 56.99 €
**Prices and availability valid until:** 2026-07-12 23:59
**Price without VAT (21%):** 47.10 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--kaps-c413501050--12243481

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 06.07.2026 | free |
| Pickup points | 09.07.2026 | 1.99 EUR |
| Courier delivery to door | 09.07.2026 | 4.99 EUR |

## Summary description

Open horizontal expansion vessel by Kaps with 50-liter capacity, intended for central heating systems. This open-type expansion tank compensates for volume changes in heating circuits, supports pressure regulation in non-pressurized setups and is mounted horizontally. Suitable for domestic and small commercial boiler rooms where an open expansion solution is required.

## Long description

Open horizontal expansion vessel Kaps 50 L (model C413501050) is designed for central heating systems requiring an open expansion solution. This vessel accepts changes in water volume caused by temperature fluctuations in non-pressurized heating circuits and is intended for horizontal mounting in boiler rooms. The unit is suitable for domestic and small commercial installations where a gravity or open-vent arrangement is used and where reliable allowance for thermal expansion is needed.
Advantages
The Kaps open horizontal expansion vessel provides a simple, passive means to accommodate thermal expansion without the need for pressurized components. Its 50-liter capacity offers ample compensation for typical small to medium heating loops. Horizontal mounting reduces installation height requirements and facilitates placement in boiler rooms with limited vertical space. The vessel's open-type design enables free venting to an expansion tank or attic cistern in traditional open systems.
Suitable for
 Domestic central heating systems with open-vent configuration
 Small commercial boiler rooms where non-pressurized expansion is required
 Retrofit projects replacing damaged or undersized open expansion tanks
 Installations with limited vertical space that need horizontal mounting
Key specifications
 Nominal volume: 50 liters capacity for thermal expansion compensation
 Mounting orientation: horizontal installation
 Application type: open/vented expansion vessel for central heating circuits
 Material considerations: corrosion-resistant construction suitable for potable or heating water circuits when installed in open systems
 Connection type: fittings compatible with standard open-vent plumbing arrangements
How to use
Install the expansion vessel horizontally in the boiler room at the designated location in the expansion circuit, ensuring secure support and correct alignment of inlet and outlet connections. Connect the vessel to the system's open-vent piping so it can communicate with the expansion tank or header. Provide a clear vent path to the atmosphere or to the building's expansion cistern as required by the system design. Regularly inspect the vessel and connections for signs of corrosion, leaks, or blockages and ensure the open vent remains unobstructed.
Usage recommendations
Verify compatibility with the heating system design prior to installation: ensure the 50 L capacity meets expansion requirements, the horizontal orientation suits the available space, and the vessel is placed in a location that allows proper venting and maintenance access.

## FAQ

### How much does the Kaps Expansion Vessel Open Horizontal 50 L C413501050 cost, and is it available for purchase?

The price is 56.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 17 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 06.07.2026 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 Kaps 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 Kaps 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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