# Connector reducer VIEGA 35x28 model 346621 for plumbing systems

**URL:** https://aio.lv/en/product--viega-346621--12407302
**Data updated:** 2026-05-01 23:27 (EEST)
**Category:** Home & DIY Accessories
**Manufacturer:** VIEGA
**Manufacturer code:** 346621
**EAN:** 4015211346621
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 17.99 €
**Prices and availability valid until:** 2026-08-09 23:59
**Price without VAT (21%):** 14.87 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--viega-346621--12407302

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 28.07.2026 | free |
| Pickup points | 31.07.2026 | 1.89 EUR |
| Courier delivery to door | 31.07.2026 | 4.99 EUR |

## Summary description

VIEGA connector reducer 35x28 (model 346621) is a plumbing fitting that joins pipes of different diameters. Designed for reliable hydraulic connections, it adapts a 35 mm line to a 28 mm line. Suitable for potable water and heating installations where a secure, leak-resistant transition between pipe sizes is required.

## Long description

VIEGA connector reducer 35x28 model 346621 is a metal plumbing fitting designed to join two pipes of different diameters, providing a stable hydraulic connection between a 35 mm line and a 28 mm line. Intended for potable water and heating systems, this reducer ensures a secure, leak-resistant transition when adapting pipework to different sizes in domestic or commercial installations.
Advantages
The VIEGA connector reducer offers a compact, robust solution for size transitions in pipe systems. Manufactured to VIEGA quality standards, it delivers reliable sealing and mechanical stability while minimizing pressure loss across the connection. Its straightforward design enables quick integration into existing circuits and reduces the need for complex fittings or additional adapters.
Suitable for
 Potable water supply lines where a 35 mm pipe must be reduced to 28 mm
 Domestic and commercial heating systems requiring size adaptation
 Repair or modification of existing plumbing circuits with mixed pipe diameters
 Hydraulic connections in service runs, risers, and manifold branches
When it may not be suitable
This reducer is intended specifically for adapting between 35 mm and 28 mm pipework; it is not suitable where different diameters are required. It may not be appropriate for applications that demand flexible coupling, vibration isolation or where thermal expansion movement is large, since rigid reducers do not provide flexibility. For systems with aggressive chemical exposure or exceptionally high temperatures, material compatibility should be verified.
Key specifications
 Connection sizes: 35 mm to 28 mm
 Application: potable water and heating systems
 Function: rigid reducer for hydraulic line transitions
 Typical installation: inline between pipes of different diameters
How to use
Install the VIEGA connector reducer by preparing both pipe ends to the required dimensions and cleanliness, ensuring proper alignment. Depending on the pipe material and system type, use the recommended joining method (e.g., press-fit, soldering, or threaded connection) compatible with the reducer design. Verify seating and seal engagement, then pressure-test the circuit according to local plumbing codes to confirm leak-free operation before putting the system into regular use.
What to consider before purchase
 Confirm pipe outer diameters are 35 mm and 28 mm to match the reducer
 Check compatibility of joining method with your pipe material (copper, stainless, PEX, etc.)
 Ensure the reducer material and construction meet potable water and heating system requirements
 Assess whether a rigid reducer is acceptable given thermal movement and vibration in the system
Usage recommendations
Follow manufacturer instructions and local plumbing standards for installation and pressure testing. Use appropriate tools and verify material compatibility to ensure a durable, leak-free transition between 35 mm and 28 mm pipes.

## FAQ

### How much does the VIEGA connector reducer 35x28 346621 cost, and is it available for purchase?

The price is 17.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 4 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 28.07.2026 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/12407302/68695782_large.webp