# Radiator Connection Fitting SiGMA-Li model PERTPGG1616T — upper and side inlet, 16/16 PE-RT

**URL:** https://aio.lv/en/product--sigma-li-pertpgg1616t--11825303
**Data updated:** 2026-03-09 11:14 (EET)
**Category:** Heating Radiators
**Manufacturer:** SiGMA-Li
**Manufacturer code:** PERTPGG1616T
**EAN:** 5902837600185
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 8.49 €
**Prices and availability valid until:** 2026-07-28 23:59
**Price without VAT (21%):** 7.02 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--sigma-li-pertpgg1616t--11825303

## 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

SiGMA-Li radiator connection fitting PERTPGG1616T is designed for upper and side inlet installation to connect radiators to 16/16 PE-RT piping. The fitting supports PE-RT pipe material compatibility and provides a compact connection point for central heating systems. Suitable for residential and light commercial radiator installations where 16 mm PE-RT supply and return lines are used.

## Long description

SiGMA-Li model PERTPGG1616T radiator connection fitting is engineered for upper and side inlet installations that connect radiators to 16/16 PE-RT piping. Designed for compatibility with PE-RT pipe material, this compact fitting provides a sealed connection point for central heating systems in residential and light commercial buildings where 16 mm PE-RT supply and return lines are used.
Advantages
The fitting offers a compact form factor that simplifies installation in confined spaces and supports both upper and side inlet orientations, reducing the need for additional pipe bends. Made for use with PE-RT pipes, it ensures consistent material compatibility and reliable hydraulic performance. Its design minimizes potential leak points and facilitates a clean handover between radiator valves and polymer piping.
Suitable for
 Residential radiator installations with 16 mm PE-RT supply and return lines
 Light commercial heating systems using polymer piping
 Situations requiring upper or side inlet connection to radiators
 Retrofit projects where space constraints demand compact fittings
Key specifications
 Connection orientation: upper and side inlet compatible
 Pipe compatibility: PE-RT (polyethylene of raised temperature resistance)
 Pipe size compatibility: 16 mm supply and 16 mm return
 Application: central heating radiator connection
 Typical use environment: residential and light commercial
How to use
Prepare the 16 mm PE-RT pipes by cutting squarely and deburring the ends. Insert the pipe into the fitting following the radiator valve manufacturer’s orientation for upper or side inlet. Ensure full insertion to the designated stop and tighten any required compression or locking mechanism according to the fitting instructions. After assembly, pressurize and perform a leak test in line with system commissioning procedures before putting the heating system into regular operation.
Usage recommendations
Use appropriate tools for cutting and deburring PE-RT pipe to maintain clean sealing surfaces. Verify compatibility between the radiator valve and the fitting orientation before installation. Follow local plumbing and heating codes and perform an initial pressure test after installation to confirm system integrity.

## FAQ

### How much does the Radiator fitting SiGMA-Li PERTPGG1616T cost, and is it available for purchase?

The price is 8.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 2 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/11825303/67227058_large.webp