# Expansion/Buffer Tank Galmet 140 for Gas Boilers SGW(S) Rondo, polyurethane foam insulation, class A

**URL:** https://aio.lv/en/product--galmet-26-147500--11888139
**Data updated:** 2026-03-09 21:12 (EET)
**Category:** Heating Radiators
**Manufacturer:** Galmet
**Manufacturer code:** 26-147500
**EAN:** 5901224402951
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 864.99 €
**Prices and availability valid until:** 2026-07-28 23:59
**Price without VAT (21%):** 714.87 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--galmet-26-147500--11888139

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 16.07.2026 | free |
| Pickup points | 21.07.2026 | 1.89 EUR |
| Courier delivery to door | 21.07.2026 | 4.99 EUR |

## Summary description

Galmet 140 is an expansion and buffer tank designed for use with gas boilers of the SGW(S) Rondo series. The unit features polyurethane foam insulation and is classified as class A. It provides hydraulic balancing, thermal stability and additional water volume to protect the boiler from frequent cycling and pressure fluctuations. Suitable for residential and light commercial heating systems requiring a compact insulated tank.

## Long description

Galmet 140 is an expansion and buffer tank designed for gas boilers of the SGW(S) Rondo series. The compact insulated vessel increases system water volume to reduce boiler cycling and stabilise pressure fluctuations. Polyurethane foam insulation minimises heat loss and helps maintain thermal stability in residential and light commercial heating installations. The unit is classified as class A and engineered to integrate directly with compatible Rondo boilers for hydraulic balancing and improved operational durability.
Advantages
The Galmet 140 combines a compact footprint with effective thermal insulation to preserve system temperature and reduce energy waste. By adding buffer volume, it lowers the frequency of boiler starts and stops, which can extend boiler life and improve comfort through steadier temperatures. The polyurethane foam jacket provides long-term insulation performance without significantly increasing the tank’s external dimensions. Installation is intended to be straightforward when paired with SGW(S) Rondo gas boilers, supporting reliable hydraulic balancing and pressure dampening.
Suitable for
Residential central heating systems using SGW(S) Rondo gas boilers
Light commercial heating installations requiring compact insulated buffer capacity
Systems needing improved hydraulic balancing and reduced boiler cycling
Applications where minimising heat loss from the expansion/buffer tank is important
Key specifications
Function: combined expansion and buffer tank
Tank volume: 140 litres nominal capacity
Insulation: rigid polyurethane foam jacket
Insulation class: A
Application: compatible with SGW(S) Rondo series gas boilers
Mounting: free-standing or floor-mounted integration in boiler room layouts
Primary benefit: increases water volume and provides pressure stabilisation
How to use
Install the Galmet 140 adjacent to the SGW(S) Rondo gas boiler following the boiler manufacturer’s piping and hydraulic connection guidelines. Ensure the tank is connected to the heating circuit at the recommended connection point to allow proper exchange of water between the boiler and buffer tank. Commission the system by filling, venting air pockets, and setting the system pressure within the parameters specified for the boiler and heating installation. Periodically check for proper insulation condition and absence of leaks as part of routine heating system maintenance.
Usage recommendations
For optimal performance, match the tank installation to the hydraulic scheme provided by the boiler manufacturer and size the buffer volume in relation to system capacity. Regularly verify system pressure and inspect connections to maintain reliable pressure stabilisation and reduce cycling. In environments with extreme temperature variations, ensure insulation integrity to preserve thermal stability.

## FAQ

### How much does the Galmet Expansion/Buffer Tank 140 for SGW(S) Rondo cost, and is it available for purchase?

The price is 864.99 € (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 16.07.2026 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, Leasing for legal entities. All transactions are 100% secure and encrypted.

### Can Galmet Expansion/Buffer Tank 140 for SGW(S) Rondo 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 Galmet 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 Galmet 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/11888139/67309300_large.webp