# Welded Tee Fitting SiGMA-Li SIGMA LI - GZ. 20 x 1/2 for PE-RT piping

**URL:** https://aio.lv/en/product--sigma-li-perttz2012--11825419
**Data updated:** 2026-03-09 11:14 (EET)
**Category:** Home & DIY Accessories
**Manufacturer:** SiGMA-Li
**Manufacturer code:** PERTTZ2012
**EAN:** 5902814627655
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 7.49 €
**Prices and availability valid until:** 2026-08-01 23:59
**Price without VAT (21%):** 6.19 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--sigma-li-perttz2012--11825419

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 21.07.2026 | free |
| Pickup points | 24.07.2026 | 1.89 EUR |
| Courier delivery to door | 24.07.2026 | 4.99 EUR |

## Summary description

Welded tee fitting SiGMA-Li SIGMA LI GZ. 20 x 1/2 designed for use with PE-RT (polyethylene of raised temperature resistance) piping systems. The fitting provides a GZ. 20 x 1/2 connection suitable for branching and joining PE-RT pipes. Intended for plumbing, heating and hot-water distribution applications where welded joints and compatible geometry are required.

## Long description

Welded tee fitting SiGMA-Li SIGMA LI - GZ. 20 x 1/2 for PE-RT piping is a branch fitting designed for integration into PE-RT (polyethylene of raised temperature resistance) distribution systems. The fitting provides a GZ. 20 x 1/2 threaded branch connection combined with butt-weld ends for PE-RT pipes, enabling secure welded joints and a compact geometry that fits plumbing and heating installations. It is intended for use in potable hot-water distribution, heating circuits and other systems where welded connections ensure leak-free performance under elevated temperatures.
Advantages
The tee fitting offers reliable welded joints with consistent alignment for PE-RT pipelines, reducing the risk of misalignment and leaks. Its threaded branch connection allows straightforward attachment of valves or accessories without modifying the main welded run. Manufactured to suit common heating and plumbing requirements, the fitting supports sustained service at temperatures typical for hot-water and heating applications while maintaining mechanical stability and flow continuity.
Suitable for
 Branching PE-RT hot-water distribution lines
 Connecting heating circuits and manifold runs
 Plumbing installations requiring welded pipe joints
 Systems where a threaded branch (G 1/2) is needed for valves or sensors
Key specifications
 Connection type: butt-weld ends for PE-RT pipe with a threaded branch G 1/2
 Branch size: G 1/2 (female/male thread as specified by installer requirements)
 Material compatibility: PE-RT piping systems
 Application: plumbing and heating (hot-water distribution, heating circuits)
 Geometry: tee fitting for inline welding with a perpendicular threaded outlet
How to use
Prepare PE-RT pipe ends according to welding guidelines for a clean, square cut and remove any debris or oxidation. Align the butt-weld ends of the tee with the prepared pipe ends and perform the appropriate welding method for PE-RT (hot-tool butt fusion or compatible welding technique), ensuring correct temperatures and pressure for a full-strength joint. After welding and cooling, fit the G 1/2 threaded branch with the required valve, sensor or accessory using suitable sealing material on the thread where indicated by the system design. Verify alignment and conduct pressure testing as part of commissioning.
Usage recommendations
Use certified PE-RT welding equipment and follow local regulations and manufacturer welding parameters. Confirm material compatibility and pressure/temperature limits of the complete system before installation. Conduct pressure tests after installation and before handing the system into service.

## FAQ

### How much does the Welded Tee SiGMA-Li SIGMA LI GZ. 20 x 1/2 cost, and is it available for purchase?

The price is 7.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 266 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 21.07.2026 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/11825419/68536798_large.webp