# Compression Elbow SiGMA-Li PERTKW1612T for PE-RT pipe 16x1/2" (16 mm x 1/2")

**URL:** https://aio.lv/en/product--sigma-li-pertkw1612t--11825098
**Data updated:** 2026-03-09 11:14 (EET)
**Category:** Underfloor Heating
**Manufacturer:** SiGMA-Li
**Manufacturer code:** PERTKW1612T
**EAN:** 5902837600017
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 5.99 €
**Prices and availability valid until:** 2026-07-21 23:59
**Price without VAT (21%):** 4.95 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--sigma-li-pertkw1612t--11825098

## 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

Fitting: SiGMA-Li compression/elbow PERTKW1612T designed for PE-RT pipe with 16 mm outer diameter and 1/2" threaded connection. Intended for forming a 90° change of direction in heating and plumbing systems. Compatible with PE-RT piping, provides a secure welded joint, and is suitable for underfloor heating, radiators, and potable water installations.

## Long description

Compression Elbow SiGMA-Li PERTKW1612T for PE-RT pipe 16x1/2" is a 90° compression fitting intended for use with PE-RT pipes of 16 mm outer diameter. The fitting combines a compression connection on the pipe side with a 1/2" threaded outlet to create a durable change of direction in heating and plumbing systems. It is designed for installations where a compact elbow with a reliable sealed joint is required, including underfloor heating manifolds, radiator connections and potable water circuits.
Advantages
The compression elbow provides a secure, leak-resistant connection to PE-RT pipe without requiring soldering or specialized fusion equipment. Its compact 90° profile saves installation space and simplifies routing in confined areas. The use of a mechanical compression joint allows for relatively fast assembly and disassembly for maintenance, while the threaded 1/2" outlet ensures compatibility with common valves and accessories. Materials and construction are chosen to suit potable water and heating applications where corrosion resistance and stable joint performance are important.
Suitable for
Underfloor heating manifolds and branch lines
Radiator supply and return connections
Domestic potable water pipelines using PE-RT 16 mm pipe
Compact plumbing installations and retrofit projects
Key specifications
Pipe compatibility: PE-RT with 16 mm outer diameter
Connection type (pipe side): compression fitting designed for PE-RT
Connection type (outlet): 1/2" threaded connection
Angle: 90° elbow
Application: heating and potable water systems
How to use
Cut the PE-RT pipe squarely and deburr the end, ensuring the outer diameter is clean and free of damage. Slide the compression nut and any included ferrule or sealing component onto the pipe, insert the pipe fully into the fitting body until it reaches the internal stop, then tighten the compression nut to the specified torque or hand-tight plus an appropriate fraction of a turn as recommended by the pipe manufacturer. Thread the 1/2" outlet to the mating fitting or valve using appropriate sealant or tape on the male threads if required. After assembly, perform a pressure test of the system according to local regulations and standards to check for leaks before placing the system into regular service.
Usage recommendations
Use with undamaged PE-RT pipe of the correct outer diameter and follow manufacturer guidance on tightening torque. Avoid excessive bending near the joint and support the piping to prevent stress at the elbow. For potable water systems, flush the line after installation and carry out a pressure test in line with applicable codes.

## FAQ

### How much does the SiGMA-Li PERTKW1612T PE-RT elbow 16x1/2" cost, and is it available for purchase?

The price is 5.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 174 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 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/11825098/67226915_large.webp