# End cap for PE-RT pipes SiGMA-Li PERTZ20 — welded blind cap, 20 mm

**URL:** https://aio.lv/en/product--sigma-li-pertz20--11825178
**Data updated:** 2026-03-09 11:14 (EET)
**Category:** Home & DIY Accessories
**Manufacturer:** SiGMA-Li
**Manufacturer code:** PERTZ20
**EAN:** 5902814627518
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 3.49 €
**Prices and availability valid until:** 2026-07-27 23:59
**Price without VAT (21%):** 2.88 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--sigma-li-pertz20--11825178

## 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

Welded blind end cap for PE-RT piping by SiGMA-Li, model PERTZ20, designed for 20 mm diameter pipes. Intended to close and seal PE-RT lines during installation, testing or when a branch is not used. Suitable for fusion welding (butt/fusion processes compatible with PE-RT), provides a secure, permanent seal for heating and potable water systems where PE-RT is specified.

## Long description

Welded blind end cap for PE-RT pipes by SiGMA-Li, model designed for 20 mm diameter lines. The end cap is intended to close and seal PE-RT piping during installation, pressure testing or when a pipe branch is left unused. It is compatible with butt/fusion welding methods suitable for PE-RT materials and provides a permanent, leak-resistant termination for heating and potable water systems where PE-RT is specified.
Advantages
The welded blind cap offers reliable, permanent sealing with fusion welding compatible with PE-RT pipes, reducing the risk of leaks at open ends. Its design ensures mechanical strength and long-term resistance to thermal cycling in heating applications. The cap simplifies site operations by allowing secure closure during pressure tests and pipeline commissioning, eliminating temporary solutions that can contaminate or damage the system.
Suitable for
Sealing open ends of 20 mm PE-RT supply and return lines
Temporary closure during pressure testing and commissioning
Permanently terminating unused branches in heating and potable water networks
Key specifications
Material compatibility: polyethylene of raised temperature resistance (PE-RT)
Nominal pipe diameter: 20 mm
Connection method: fusion welding (butt/fusion compatible)
Application environments: underfloor heating, radiator circuits, potable water distribution where PE-RT is used
Function: welded blind/end cap for permanent sealing
How to use
Prepare the pipe end by cutting square and removing any burrs, ensuring clean, dry surfaces appropriate for fusion welding. Align the end cap with the pipe and perform butt or fusion welding according to the welding equipment manufacturer's parameters and industry practice for PE-RT materials. Allow the joint to cool and verify integrity by visual inspection and pressure testing in accordance with relevant installation standards. Do not attempt to mechanically clamp the cap as a substitute for proper fusion welding.
Usage recommendations
Follow manufacturer and local installation standards for PE-RT fusion welding, use appropriate welding equipment and trained personnel, and perform pressure tests after cooling to confirm a leak-free joint.

## FAQ

### How much does the End cap SiGMA-Li PERTZ20 for PE-RT 20 mm cost, and is it available for purchase?

The price is 3.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 60 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/11825178/67226966_large.webp