# Expansion Vessel FERRO K5UNI50S standing universal, capacity 50 L

**URL:** https://aio.lv/en/product--ferro-k5uni50s--11888075
**Data updated:** 2026-03-09 21:11 (EET)
**Category:** Home Appliance Accessories
**Manufacturer:** FERRO
**Manufacturer code:** K5UNI50S
**EAN:** 5903738253654
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 193.49 €
**Prices and availability valid until:** 2026-07-25 23:59
**Price without VAT (21%):** 159.91 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--ferro-k5uni50s--11888075

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 15.07.2026 | free |
| Pickup points | 20.07.2026 | 1.89 EUR |
| Courier delivery to door | 20.07.2026 | 4.99 EUR |

## Summary description

FERRO K5UNI50S is a standing universal expansion vessel with a 50 L capacity designed for hydronic heating and hot water systems. It compensates thermal expansion, maintains system pressure and reduces water hammer. Suitable for residential and light commercial boiler systems where a floor-mounted expansion vessel is required. Supplied as a single unit for installation in circulation systems.

## Long description

FERRO K5UNI50S standing universal, capacity 50 L is a floor-mounted expansion vessel designed for hydronic heating and domestic hot water circulation systems. The vessel compensates for thermal expansion of water, helps maintain stable system pressure and reduces the risk of water hammer. Intended for residential and light commercial boiler installations where a standing vessel is required, it is supplied as a single unit ready for integration into closed circulation systems.
Advantages
The standing design allows installation in systems with limited wall space and provides stable mechanical support on the floor. A 50 L capacity offers sufficient buffer volume for typical single-family heating circuits and small commercial loops, reducing frequent pressure adjustments. The vessel contributes to longer pump and valve life by minimizing pressure fluctuations and protects piping and components from expansion-related stresses.
Suitable for
 Residential hydronic heating systems
 Domestic hot water circulation loops
 Light commercial boilers and small apartment systems
 Floor-mounted installations with limited wall-mounting options
Key specifications
 Type: standing universal expansion vessel
 Nominal capacity: 50 litres
 Application: closed hydronic heating and hot water systems
 Function: compensates thermal expansion and stabilizes system pressure
 Installation position: floor-mounted
How to use
Install the expansion vessel on a stable, level surface close to the boiler or circulation pump, following local regulations and the system schematic. Connect the vessel to the system using an appropriate connection fitting and ensure all joints are leak-tight. Pre-charge the vessel to the recommended air pressure for the system before commissioning, and verify the system pressure at cold conditions. After installation, bleed air from the system and check for correct pressure compensation during a normal heating cycle.
Usage recommendations
Verify the required pre-charge pressure based on system static pressure and altitude. Perform periodic visual inspections and pressure checks during regular maintenance intervals. Replace the vessel if the bladder shows signs of failure, if there is persistent pressure loss, or if visible corrosion or mechanical damage is present.

## FAQ

### How much does the FERRO K5UNI50S expansion vessel 50 L cost, and is it available for purchase?

The price is 193.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 3 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 15.07.2026 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, Installment. All transactions are 100% secure and encrypted.

### Can FERRO K5UNI50S expansion vessel 50 L be purchased with a lease?

Yes, the purchase is available both on credit and with an interest-free installment plan. Learn more about installments and credit options: https://aio.lv/en/payment#b3

### 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 FERRO 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 FERRO 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/11888075/67309205_large.webp