# Coupling reducer SANHA THERM C-Stahl d35x28 – copper-to-steel pipe connector

**URL:** https://aio.lv/en/product--sanha-1242403528--11828514
**Data updated:** 2026-03-09 14:36 (EET)
**Category:** Home & DIY Accessories
**Manufacturer:** SANHA
**Manufacturer code:** 1242403528
**EAN:** 4021343327339
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 14.99 €
**Prices and availability valid until:** 2026-07-21 23:59
**Price without VAT (21%):** 12.39 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--sanha-1242403528--11828514

## 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

SANHA THERM C-Stahl reducing coupling d35x28 is a pipe fitting designed to join pipes of different diameters (35 mm to 28 mm). Manufactured by SANHA, the fitting provides a transition between compatible copper and steel piping systems and is intended for heating and plumbing installations where a reliable diameter reduction is required.

## Long description

SANHA THERM C-Stahl reducing coupling d35x28 is a pipe fitting designed to join a 35 mm pipe to a 28 mm pipe, providing a secure transition between compatible copper and steel piping systems. Intended for heating and plumbing installations, the coupling allows a reliable diameter reduction while maintaining flow integrity and mechanical stability in mixed-material pipelines.
Advantages
The SANHA THERM C-Stahl coupling offers a compact, space-saving solution for diameter reduction between 35 mm and 28 mm pipes. Its design ensures consistent mechanical connection and alignment between copper and steel pipes, reducing the need for additional adapters. The fitting is suitable for press or soldering installation methods depending on system requirements and provides stable hydraulic performance with minimal pressure loss across the reduction.
Suitable for
 Heating systems combining copper and steel pipelines
 Plumbing installations requiring diameter transitions from 35 mm to 28 mm
 Repair or retrofit projects where mixed-material connections are needed
 Commercial and residential distribution lines with standard thread or press connection methods
Key specifications
 Nominal pipe diameters: 35 mm reduced to 28 mm
 Material compatibility: copper to steel connection
 Application: heating and plumbing systems
 Function: mechanical coupling for diameter reduction
 Typical installation methods: press-fitting or soldering depending on system design
How to use
Select the appropriate installation method for the SANHA THERM C-Stahl reducing coupling according to the project specifications and local codes. Prepare pipe ends by cutting square, deburring, and cleaning contact surfaces. Position the coupling to ensure correct insertion depth for both 35 mm and 28 mm pipes, then complete the joint using the chosen technique (press or solder) following the manufacturer's and relevant standards' instructions. After installation, verify alignment and pressure integrity according to system testing procedures.
Usage recommendations
Ensure material compatibility in the overall pipeline and confirm that the coupling's specified diameters match the installed pipes. Observe applicable installation standards and perform pressure testing after assembly. For long-term corrosion protection and optimal performance in mixed-metal systems, consider appropriate insulation, dielectric separation, or corrosion inhibitors where required by the installation context.

## FAQ

### How much does the SANHA THERM C-Stahl reducing coupling d35x28 cost, and is it available for purchase?

The price is 14.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 26 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. 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 SANHA 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 SANHA 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/11828514/67229515_large.webp