# VIEGA reducing tee 18×15×18 mm, compression fitting, model 5130R181518

**URL:** https://aio.lv/en/product--viega-5130r181518--11831747
**Data updated:** 2026-03-09 14:42 (EET)
**Category:** Home & DIY Accessories
**Manufacturer:** VIEGA
**Manufacturer code:** 5130R181518
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 6.49 €
**Prices and availability valid until:** 2026-07-27 23:59
**Price without VAT (21%):** 5.36 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--viega-5130r181518--11831747

## 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

Reducing tee by VIEGA, model 5130R181518, with nominal dimensions 18×15×18 mm. Designed to join three pipe runs while reducing one branch from 18 mm to 15 mm. Suitable for plumbing and heating systems where a size transition is required. Provides a compact, durable connection for copper or compatible pipe systems in installations and repairs.

## Long description

The VIEGA reducing tee 18×15×18 mm, compression fitting, model 5130R181518 is a compact plumbing accessory designed to connect three pipe runs with a reduction on one branch from 18 mm to 15 mm. Manufactured by VIEGA, this reducing tee is intended for use in potable water, heating and general plumbing installations where a reliable, space-efficient transition between pipe sizes is required. The compression-style connections provide a leak-resistant joint when installed on compatible copper or similar rigid pipes.
Advantages
This reducing tee offers a compact footprint and straightforward compression connections that eliminate the need for soldering or specialized tools. Its construction delivers mechanical stability and consistent alignment of pipe runs, helping maintain system integrity during assembly and operation. The size reduction feature allows integration of smaller-diameter branches into existing 18 mm pipelines without additional adapters or extensive rework.
Suitable for
Residential and commercial potable water distribution
Heating circuits and radiator branch connections
Plumbing repairs where a reduction from 18 mm to 15 mm is required
Installations using copper or compatible rigid pipe systems with compression fittings
Key specifications
Material: compression fitting compatible with copper and similar rigid pipes
Nominal dimensions: 18 mm × 15 mm × 18 mm (branch reduction from 18 to 15 mm)
Connection type: compression joint on all three ends
Application: water and heating systems
Design: reducing tee for three-way connection with one reduced outlet
How to use
Prepare pipe ends by cutting square and removing burrs, ensuring the pipes are clean and free of debris. Slide the compression nuts and ferrules onto the pipes, insert each pipe end fully into the fitting until it seats, then hand-tighten the compression nuts. Finalize assembly by tightening the nuts to the manufacturer-recommended torque or until a secure, leak-free joint is achieved, using appropriate wrenches. Verify alignment and test the system under operating pressure to confirm seals before completing insulation or enclosure work.
Usage recommendations
Use this reducing tee in installations following local plumbing codes and VIEGA installation guidelines. Select compatible pipe material and correct pipe insertion depth. Do not use compression fittings on soft or flexible tubing not specified for this connection type. Periodically inspect compression joints for tightness and signs of leakage after initial commissioning and during routine maintenance.

## FAQ

### How much does the VIEGA reducing tee 18×15×18 mm 5130R181518 cost, and is it available for purchase?

The price is 6.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 485 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 VIEGA 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 VIEGA 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/11831747/67232304_large.webp