# Heating expansion tank Nenurodyta Cornat AGH35 35 Litre - closed membrane, 35 L capacity

**URL:** https://aio.lv/en/product--nenurodyta-ec673895604--12219772
**Data updated:** 2026-03-27 14:02 (EET)
**Category:** Heating Radiators
**Manufacturer:** Nenurodyta
**Manufacturer code:** EC/673895604
**EAN:** 676737129798
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 31.49 €
**Prices and availability valid until:** 2026-07-26 23:59
**Price without VAT (21%):** 26.02 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--nenurodyta-ec673895604--12219772

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 03.07.2026 | free |
| Pickup points | 08.07.2026 | 1.89 EUR |
| Courier delivery to door | 08.07.2026 | 5.62 EUR |

## Summary description

Closed membrane heating expansion tank Cornat AGH35 with 35 litre capacity, returned by a customer. Designed to absorb thermal expansion in closed hot water heating systems and maintain system pressure. Key parameters: 35 L nominal volume, membrane-type diaphragm, connection for heating circuits. Suitable for residential and light commercial boilers to reduce pressure fluctuations and protect components.

## Long description

The closed membrane heating expansion tank Nenurodyta Cornat AGH35, nominal 35 litre capacity, is designed to absorb thermal expansion in closed hot water heating systems and to help maintain stable system pressure. The tank features a diaphragm-type membrane that separates the air cushion from the heating fluid, ensuring efficient compensation of volume changes when the system heats and cools. This returned unit is suitable for integration with residential and light commercial boilers and heating circuits where reduction of pressure fluctuations and protection of valves, pumps and pipes are required.
Advantages
The diaphragm design provides reliable separation between the gas cushion and heating medium, reducing the risk of waterlogging and corrosion. With a compact cylindrical body and a standardized connection for heating circuits, the expansion tank is straightforward to install in typical boiler rooms and plant spaces. Its 35 litre nominal volume offers a balance between capacity and footprint for small to medium heating installations, helping to stabilise pressure and extend the service life of other system components.
Suitable for
 Closed hot water heating systems in single-family homes
 Small apartment heating circuits and compact boiler installations
 Light commercial buildings with modest heating loads
 System upgrades where pressure fluctuation reduction is required
Key specifications
 Type: Closed membrane (diaphragm) expansion tank
 Nominal volume: 35 litres
 Purpose: Compensation of thermal expansion in hot water heating systems
 Connection: Standard heating circuit connection (suitable for typical boiler interfaces)
 Installation position: Vertical or as recommended by manufacturer instructions
How to use
Install the expansion tank on the return or feed pipe of the heating circuit in accordance with the boiler and system manufacturer’s guidelines. Before commissioning, ensure the membrane is intact, and set the pre-charge pressure of the tank to match the static pressure of the heating system when cold. After installation, bleed trapped air from the system and verify stable operating pressure during a controlled heat-up cycle. Periodic inspection of the tank, system pressure and pre-charge is recommended to detect loss of charge or membrane failure.
Usage recommendations
Use the expansion tank in closed hot water heating systems only. Match the tank pre-charge pressure to the system’s static pressure before first use, and follow regular maintenance checks to ensure membrane integrity and system protection.

## FAQ

### How much does the Heating expansion tank Cornat AGH35 35 L cost, and is it available for purchase?

The price is 31.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 1 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 03.07.2026 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 Nenurodyta 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 Nenurodyta 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/12219772/68077943_large.webp