# VIEGA transition coupling 28 mm x 5/4" soldered – model 107192

**URL:** https://aio.lv/en/product--viega-107192--11817436
**Data updated:** 2026-03-09 11:04 (EET)
**Category:** Power Tools Accessories
**Manufacturer:** VIEGA
**Manufacturer code:** 107192
**EAN:** 4015211107192
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 19.49 €
**Prices and availability valid until:** 2026-08-13 23:59
**Price without VAT (21%):** 16.11 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--viega-107192--11817436

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 30.07.2026 | free |
| Pickup points | 04.08.2026 | 1.89 EUR |
| Courier delivery to door | 04.08.2026 | 4.99 EUR |

## Summary description

VIEGA transition coupling (model 107192) is a soldered plumbing fitting with a 28 mm connection on one side and a 5/4" threaded connection on the other. Designed to join copper or compatible piping to a 5/4" threaded component, it provides a durable sealed transition for water and heating systems. Suitable for repair, retrofit, and installation tasks in residential and commercial plumbing.

## Long description

VIEGA transition coupling 28 mm x 5/4" soldered – model 107192 is a plumbing fitting that provides a sealed mechanical connection between a 28 mm copper or compatible pipe and a 5/4" female threaded component. The coupling is supplied as a soldered fitting designed for installation in water supply and heating systems where a reliable transition from piping to threaded fixtures is required. Intended for use in repair, retrofit, and new installations, the coupling offers a compact solution for adapting metric copper pipework to larger imperial-threaded valves or fittings.
Advantages
The soldered joint design ensures a permanent, leak-resistant connection when properly installed, reducing the need for additional sealing materials. One side accepts a 28 mm copper pipe for capillary or ring-soldering, while the opposite side provides a 5/4" female thread for direct assembly with threaded valves or components. The fitting is manufactured to industry standards for dimensional compatibility and mechanical strength, enabling consistent performance in potable water and central heating installations.
Suitable for
Connecting 28 mm copper pipe to 5/4" threaded valves or fittings
Repairing or replacing sections in water distribution systems
Retrofit work where metric-to-imperial transitions are required
Domestic and commercial heating system connections
Key specifications
Connection A: 28 mm solderable socket for copper or compatible piping
Connection B: 5/4" female threaded connection
Material: corrosion-resistant metal suitable for potable water and heating systems
Type of joint: soldered connection on the 28 mm side
Application: water supply and central heating installations
How to use
Prepare the copper pipe end by cutting square and cleaning the outer surface and socket to remove oxides and contaminants. Apply appropriate flux to the joint area, insert the pipe into the 28 mm socket, and heat evenly until solder flows and forms a continuous fillet around the joint. Allow the assembly to cool naturally before testing. Thread the 5/4" side to the mating component using suitable thread sealing practice for the system (for example, approved tape or jointing compound where applicable) and tighten to the recommended torque for the connected component.
Usage recommendations
Use only qualified solder and flux materials compatible with potable water or heating applications. Verify compatibility of connected materials and follow local plumbing codes and manufacturer installation instructions. Test the system for leaks and pressure according to applicable standards after installation.

## FAQ

### How much does the VIEGA transition coupling 28 mm x 5/4" 107192 cost, and is it available for purchase?

The price is 19.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 478 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 30.07.2026 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 VIEGA 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 VIEGA 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/11817436/67219227_large.webp