# Alkotest K4540 elbow pipe 45° with 40 mm flange (KOLANO 45 FI40)

**URL:** https://aio.lv/en/product--alkotest-k4540--11823135
**Data updated:** 2026-03-09 11:11 (EET)
**Category:** Home & DIY Accessories
**Manufacturer:** Alkotest
**Manufacturer code:** K4540
**EAN:** 5902814620151
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 4.99 €
**Prices and availability valid until:** 2026-07-27 23:59
**Price without VAT (21%):** 4.12 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--alkotest-k4540--11823135

## 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

Alkotest K4540 KOLANO 45 FI40 is a 45° elbow pipe fitting designed for fluid or ventilation systems, featuring a 40 mm flange connection. Intended to change duct or pipe direction by 45 degrees, it suits installations requiring a flange-mounted joint. Use cases include plumbing, HVAC or industrial ductwork where a compact angled flange connection is needed.

## Long description

Alkotest K4540 elbow pipe 45° with 40 mm flange (KOLANO 45 FI40) is a pipe fitting engineered to change the flow direction by 45 degrees in fluid, ventilation or duct systems. The component features a 40 mm flange connection that enables a compact flange-mounted joint between straight runs or other components. Constructed for installations where a low-profile angled connection is required, this elbow is suitable for plumbing, HVAC and light industrial ductwork where reliable directional change and secure flange attachment are needed.
Advantages
The 45° geometry provides a smooth change of direction that minimizes flow disturbance compared with sharper angles. The integrated 40 mm flange simplifies assembly and alignment when joining to matching flange fittings or equipment. Its compact form factor is designed to fit into confined spaces while maintaining a consistent internal passage for fluid or air. The product is compatible with common piping and ducting arrangements that accept a 40 mm flange connection.
Suitable for
 Plumbing systems requiring a 45° directional change with flange connection
 HVAC ducting for air distribution in compact layouts
 Industrial ventilation where flange-mounted joints are preferred
 Retrofit installations needing a low-profile angled flange fitting
Key specifications
 Angle: 45° elbow
 Flange diameter: 40 mm flange connection
 Application: fluid, ventilation and duct systems
 Mounting: flange-mounted joint for quick alignment
 Design: compact angled fitting suitable for confined spaces
How to use
Install the elbow by aligning the 40 mm flange with the matching flange on the adjoining pipe or component, ensuring sealing elements such as gaskets are correctly positioned if required. Secure the flange connection using the appropriate fasteners and torque according to the installation standards for the system. Verify the internal passage is unobstructed and test the assembly under operating conditions to confirm there are no leaks and the directional change performs as intended.
Usage recommendations
When installing into plumbing or HVAC systems, check material compatibility with the transported medium and operating temperature. Use suitable gaskets and corrosion-resistant fasteners where exposure to moisture or aggressive fluids is expected. For airtight ventilation runs, ensure flange joints are sealed and supported to prevent strain on the connection.

## FAQ

### How much does the Alkotest K4540 45° elbow with 40 mm flange 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 — 45 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 Alkotest 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 Alkotest 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/11823135/67225114_large.webp