# Compression welded coupling SiGMA-Li SIGMA LI GZ. - 32x1 PE-RT pipe fitting

**URL:** https://aio.lv/en/product--sigma-li-pertzz321--11825029
**Data updated:** 2026-03-09 11:14 (EET)
**Category:** Underfloor Heating
**Manufacturer:** SiGMA-Li
**Manufacturer code:** PERTZZ321
**EAN:** 5902814628485
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 11.49 €
**Prices and availability valid until:** 2026-07-14 23:59
**Price without VAT (21%):** 9.50 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--sigma-li-pertzz321--11825029

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 07.07.2026 | free |
| Pickup points | 10.07.2026 | 1.99 EUR |
| Courier delivery to door | 10.07.2026 | 4.99 EUR |

## Summary description

Welded coupling SiGMA-Li SIGMA LI GZ. - 32x1 designed for PE-RT pipes with a 32 mm outer diameter and 1 mm wall or thread size as specified. This metal pipe fitting provides a welded compression connection for durable joints in plumbing and heating systems. Suitable for use in hot-water circuits, underfloor heating, and domestic plumbing where PE-RT piping is installed.

## Long description

Welded coupling SiGMA-Li SIGMA LI GZ. - 32x1 is a metal compression fitting designed for use with PE-RT pipes that have a 32 mm outer diameter and a 1 mm wall thickness or matching threaded connections. The fitting creates a welded compression joint that ensures a mechanically secure and leak-resistant connection suitable for plumbing and heating installations. It is intended for use in systems where PE-RT tubing is specified and where a reliable metal-to-plastic transition is required.
Advantages
The SiGMA-Li welded compression coupling provides a robust mechanical connection between PE-RT pipe ends and metal fittings without relying solely on adhesive or heat fusion. Its construction supports long-term performance in hot-water circuits and underfloor heating systems, offering resistance to pressure and temperature variations typical of domestic heating and plumbing applications. The fitting’s design simplifies installation while maintaining consistent sealing and alignment of PE-RT piping runs.
Suitable for
Domestic hot-water distribution
Underfloor heating systems
Plumbing installations with PE-RT piping
Repair or replacement of existing PE-RT pipe sections
Key specifications
Compatible pipe outer diameter: 32 mm
Compatible pipe wall thickness: 1 mm
Connection type: welded compression coupling for metal-to-PE-RT
Material: metal fitting for mechanical compression joints
Suitable media: potable hot and cold water, heating fluid
How to use
Prepare the PE-RT pipe by cutting it squarely and deburring the cut end. Slide the coupling components onto the pipe as required by the product design, ensuring the pipe reaches the correct insertion depth. Assemble the compression parts and perform the welded compression procedure according to the fitter’s method or the coupling manufacturer’s installation practice to obtain a secure, leak-tight joint. After assembly, inspect the connection for correct alignment and test the system under working pressure before final commissioning.
Usage recommendations
Use the coupling with PE-RT pipes that meet applicable standards for temperature and pressure; ensure pipe dimensions (32 mm outer diameter, 1 mm wall) match the fitting. Follow local plumbing and heating codes, and where relevant, perform pressure and leak tests after installation. Use appropriate tools and trained personnel for welded compression assemblies.

## FAQ

### How much does the Welded coupling SiGMA-Li SIGMA LI GZ. - 32x1 cost, and is it available for purchase?

The price is 11.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 326 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 07.07.2026 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 SiGMA-Li 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 SiGMA-Li 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/11825029/67226858_large.webp