# Elbow 45° Ø40mm pipe fitting SiGMA-Li K4540

**URL:** https://aio.lv/en/product--sigma-li-k4540--11826555
**Data updated:** 2026-03-09 11:16 (EET)
**Category:** Home & DIY Accessories
**Manufacturer:** SiGMA-Li
**Manufacturer code:** K4540
**EAN:** 5902814625286
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 4.99 €
**Prices and availability valid until:** 2026-07-18 23:59
**Price without VAT (21%):** 4.12 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--sigma-li-k4540--11826555

## 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 | 1.99 EUR |
| Courier delivery to door | 20.07.2026 | 4.99 EUR |

## Summary description

SiGMA-Li K4540 is a 45° elbow pipe fitting with a 40 mm outer diameter designed for connecting sections of piping at an angled junction. The component provides a compact directional change in pipelines and is suitable for installations where a 45-degree turn is required. Use cases include plumbing runs, drainage, and HVAC ductwork requiring a 40 mm connection.

## Long description

SiGMA-Li K4540 is a 45° elbow pipe fitting with a 40 mm outer diameter, designed to provide a compact and reliable directional change in piping systems. The fitting is intended for use where a 45-degree turn is required and enables smooth connection between pipe sections with a 40 mm interface. It is suitable for plumbing runs, drainage lines and HVAC ductwork that use 40 mm piping.
Advantages
The elbow offers a consistent 45° angle to simplify routing in confined spaces and reduce the need for multiple fittings. Its Ø40 mm dimension ensures compatibility with standard 40 mm pipe systems, promoting secure joints and straightforward installation. The design minimizes flow disturbance at the bend and supports durable, low-maintenance operation in routine building services applications.
Suitable for
Plumbing lines with 40 mm pipes
Drainage and wastewater runs
HVAC ductwork and ventilation with 40 mm connections
Renovation and retrofit projects requiring angled pipe changes
Key specifications
Nominal angle: 45°
Outer diameter: 40 mm
Function: directional elbow for pipe connection
Application areas: plumbing, drainage, HVAC
How to use
Prepare the mating pipe ends by cleaning and deburring to ensure a smooth fit. Align the pipe sections to achieve the required 45° change and insert each pipe end into the fitting to the recommended insertion depth for the pipe system being used. Secure joints according to the pipe material and installation practice—this may include solvent welding, adhesive, mechanical coupling or sealants appropriate to the piping material. Verify alignment and test the system for tightness after installation.
Usage recommendations
Verify compatibility between the elbow and the specific 40 mm pipe type before installation. Use appropriate joining methods for the material of the pipes and the fitting, and follow local codes for plumbing, drainage and HVAC systems. Inspect joints after initial operation and during regular maintenance to ensure leak-free performance.

## FAQ

### How much does the Elbow 45° Ø40mm SiGMA-Li K4540 cost, and is it available for purchase?

The price is 4.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 291 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/11826555/67228086_large.webp