# Expansion Vessel Kaps C413501030 30 L Open Horizontal for Heating Systems

**URL:** https://aio.lv/en/product--kaps-c413501030--12081428
**Data updated:** 2026-03-12 22:00 (EET)
**Category:** Heating Radiators
**Manufacturer:** Kaps
**Manufacturer code:** C413501030
**EAN:** 5901549979589
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 41.99 €
**Prices and availability valid until:** 2026-07-11 23:59
**Price without VAT (21%):** 34.70 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--kaps-c413501030--12081428

## 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 Kaps C413501030 with 30‑liter capacity, designed for central heating and boiler systems. Provides pressure compensation and accommodates thermal expansion of water in open installations. Suitable for wall- or floor-mounted configurations where an open, gravity-vented vessel is required; used in residential and light-commercial heating circuits.

## Long description

Open horizontal expansion vessel Kaps C413501030 30 L is designed for central heating and boiler systems where an open, gravity-vented tank is required. With a 30‑liter capacity, this vessel accommodates thermal expansion of water in closed-loop heating circuits that are configured as open installations, helping to maintain stable operating pressure and prevent overflow or undue strain on system components. The horizontal, open design allows installation on a wall or floor and connects to the heating circuit at a convenient orientation for system layout and maintenance.
Advantages
The open horizontal construction simplifies venting and makes the unit compatible with gravity-vented heating systems. Its 30‑liter volume provides sufficient buffer capacity for many residential and light-commercial systems, reducing pressure fluctuations during heating cycles. The vessel's orientation and mounting options offer flexibility for integration into boiler rooms or plant rooms where space and piping geometry dictate non-vertical installation.
Suitable for
 Residential central heating systems with open expansion requirements
 Small commercial or light-industrial boiler circuits using gravity venting
 Installations requiring wall- or floor-mounted horizontal vessels
 Heating systems where accessible venting and maintenance are important
Key specifications
 Capacity: 30 liters
 Design: open expansion vessel, horizontal configuration
 Application: central heating and boiler systems with gravity venting
 Mounting: suitable for wall or floor installation in heating plant rooms
 Function: accommodates thermal expansion of heating water and provides pressure compensation
How to use
Install the expansion vessel in accordance with local regulations and the heating system layout, ensuring the open tank is positioned to allow gravity venting and safe discharge. Connect the vessel to the heating circuit at the designated feed or return point using appropriate piping and fittings; secure the unit on a stable surface or wall bracket to maintain horizontal orientation. Regularly inspect the vessel and associated piping for signs of leakage, corrosion, or blockages in venting lines, and perform maintenance as part of scheduled heating system checks.
Usage recommendations
Ensure the installation follows applicable safety and building codes for open expansion vessels, including providing an appropriate overflow or drain path and easy access for inspection. Use the vessel in systems designed for open venting; do not use this open horizontal vessel in sealed or pressurized closed systems without appropriate modifications and approvals.

## FAQ

### How much does the Kaps C413501030 30L Open Horizontal Expansion Vessel cost, and is it available for purchase?

The price is 41.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 23 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

https://aio.lv/img/cache/product/12081428/67565547_large.webp