# Copper solder sleeve Conex 5240 for soldered joints 35×28 mm

**URL:** https://aio.lv/en/product--conex-5240-035028000--11832073
**Data updated:** 2026-03-09 14:43 (EET)
**Category:** Home & DIY Accessories
**Manufacturer:** Conex
**Manufacturer code:** 5240 035028000
**EAN:** 4011860161844
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 12.49 €
**Prices and availability valid until:** 2026-07-28 23:59
**Price without VAT (21%):** 10.32 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--conex-5240-035028000--11832073

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 20.07.2026 | free |
| Pickup points | 23.07.2026 | 1.89 EUR |
| Courier delivery to door | 23.07.2026 | 4.99 EUR |

## Summary description

Conex copper solder sleeve model 5240 designed for creating soldered joints between copper tubes with dimensions 35×28 mm. The component serves as a mechanical and soldered connection piece, simplifying installation of plumbing or heating pipelines where a soldered joint is required. Suitable for repair and new installations with compatible copper tubing.

## Long description

The Conex copper solder sleeve 5240 is designed to create reliable soldered joints between copper tubes with dimensions 35×28 mm. This sleeve functions as both a mechanical coupling and a soldered connection element, enabling a sealed and conductive joint when correctly installed and soldered. It is intended for use with compatible copper piping in plumbing and heating systems, and is suitable for both repair work and new installations.
Advantages
The copper construction ensures good thermal conductivity and corrosion resistance appropriate for potable water and heating circuits. Its stepped internal profile accommodates the 35×28 mm tube sizes, providing proper alignment and a consistent joint gap for solder to flow. The sleeve reduces assembly time compared with forming complex fittings on-site and delivers a compact connection that maintains pipe strength and hydraulic performance when soldered correctly.
Suitable for
 Repairing damaged copper pipelines
 Joining copper pipes in domestic heating systems
 Connecting copper tubing in potable water installations
 Retrofit and tight-space plumbing where a compact soldered joint is required
Key specifications
 Material: copper
 Connection type: solder sleeve for capillary soldering
 Compatible tube outer diameters: 35 mm and 28 mm
 Application: plumbing and heating pipeline joints
 Fitment: stepped internal profile for concentric alignment
How to use
Prepare the copper tube ends by cutting square, deburring, and cleaning the surfaces to bright copper where solder will flow. Insert the tubes fully into each side of the sleeve until they meet the internal stop, ensuring correct alignment for the 35 mm and 28 mm ends. Apply an appropriate flux to the joint area and heat evenly with a torch until the solder flows into the seam by capillary action. Allow the assembly to cool naturally and then check the joint for continuity and leaks before putting the system back into service.
Usage recommendations
Use only flux and solder suitable for potable water or heating systems, and follow local regulations and safety practices for brazing/soldering. Verify tube compatibility and dimensional fit before installation. For pressure-critical or safety-related systems, perform a pressure test after installation to confirm joint integrity.

## FAQ

### How much does the Conex 5240 copper solder sleeve 35×28 mm cost, and is it available for purchase?

The price is 12.49 € (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 20.07.2026 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 Conex 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 Conex 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/11832073/67232619_large.webp