# Flat duct connector with non-return valve AWENTA KP55-22 for 55 × 110 mm rectangular ducts

**URL:** https://aio.lv/en/product--awenta-a-kp55-22--11833558
**Data updated:** 2026-03-09 14:45 (EET)
**Category:** Ventilation Filters
**Manufacturer:** AWENTA
**Manufacturer code:** A-KP55-22
**EAN:** 5905033294004
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 5.99 €
**Prices and availability valid until:** 2026-07-22 23:59
**Price without VAT (21%):** 4.95 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--awenta-a-kp55-22--11833558

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 16.07.2026 | free |
| Pickup points | 21.07.2026 | 1.89 EUR |
| Courier delivery to door | 21.07.2026 | 4.99 EUR |

## Summary description

AWENTA flat duct connector KP55-22 is designed for joining rectangular ventilation ducts sized 55 × 110 mm. It incorporates a non-return (check) valve to prevent backflow and is suitable for HVAC and ventilation systems requiring directional airflow control. Use for connecting flat ducts in residential or commercial installations where return air prevention is needed.

## Long description

AWENTA flat duct connector KP55-22 is designed to join 55 × 110 mm rectangular ventilation ducts while providing integrated backflow protection. The unit combines a low-profile connection flange for flat duct runs with an internal non-return valve that permits airflow in the intended direction and closes to prevent reverse flow. Constructed for HVAC and ventilation systems, this connector fits within ducts of the specified cross section and supports straightforward inline installations in residential and commercial environments.
Advantages
The connector integrates a non-return valve into a compact flat profile, saving space where duct height is limited. Its design ensures directional airflow control without additional external dampers, reducing the number of components required in a ventilation line. The product is compatible with standard 55 × 110 mm rectangular ducts, enabling consistent sealing and alignment for reliable airflow performance. Materials and assembly geometry are chosen to provide stable operation and ease of handling during installation.
Suitable for
Connecting 55 × 110 mm flat rectangular ventilation ducts
Residential exhaust and supply ventilation where backflow must be prevented
Commercial HVAC sections with limited vertical space
Retrofit installations requiring an in-line non-return solution
Key specifications
Compatible duct cross section: 55 × 110 mm rectangular
Integrated non-return (check) valve to prevent reverse airflow
Flat/low-profile connector geometry for limited duct height
Designed for inline installation in ventilation and HVAC systems
Suitable for residential and commercial applications
How to use
Position the connector between two matching 55 × 110 mm rectangular duct sections so that the airflow direction aligns with the valve orientation. Secure the connector to each duct end using appropriate fasteners or clamps and seal the joints with HVAC-approved tape or sealant to ensure airtight connections. Verify that the non-return valve moves freely and closes when airflow reverses. After installation, run the ventilation system and inspect for proper directional flow and any air leakage at the joins.
Usage recommendations
Install the connector in horizontal or slightly inclined runs where the valve blade can operate without obstruction. Avoid placing heavy loads on the connector and ensure the surrounding ductwork supports the assembly. Periodically inspect the valve for dust or debris buildup and clean as needed to maintain reliable operation. Use compatible sealing materials and standard installation practices for rectangular ductwork.

## FAQ

### How much does the AWENTA flat duct connector KP55-22 cost, and is it available for purchase?

The price is 5.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 5 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 16.07.2026 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 AWENTA 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 AWENTA 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/11833558/67234045_large.webp