# Damper ALNOR DASL-125 — closing damper with gasket, Ø125 mm

**URL:** https://aio.lv/en/product--alnor-dasl-125--4595149
**Data updated:** 2026-03-07 14:50 (EET)
**Category:** Ventilation Filters
**Manufacturer:** ALNOR
**Manufacturer code:** DASL-125
**EAN:** 4772013122579
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 10.49 €
**Prices and availability valid until:** 2026-07-18 23:59
**Price without VAT (21%):** 8.67 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--alnor-dasl-125--4595149

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 29.06.2026 | free |
| Pickup points | 02.07.2026 | 1.99 EUR |
| Courier delivery to door | 02.07.2026 | 4.99 EUR |

## Summary description

ALNOR DASL-125 is a closing damper with gasket designed for air duct systems with a 125 mm nominal diameter. The damper provides airtight shut-off through an integrated gasket and is intended for controlling airflow, isolation of duct sections and preventing leakage. Suitable for ventilation and HVAC installations where secure closure and sealing of round ducts is required.

## Long description

ALNOR DASL-125 is a closing damper with gasket designed for round air ducts with a nominal diameter of 125 mm. The unit provides airtight shut-off by means of an integrated gasket and a closing mechanism, allowing reliable isolation of duct sections and prevention of unwanted airflow and leakage in ventilation and HVAC systems.
Advantages
The damper offers tight sealing thanks to the integrated gasket, reducing air leakage when closed. Its round design matches standard Ø125 mm ducts for straightforward installation. Construction and materials are selected for typical ventilation use, providing consistent performance for controlling airflow and isolating duct segments in residential and commercial systems.
Suitable for
Sealing and isolating sections of round ventilation ducts with 125 mm diameter
Controlling airflow in HVAC and ventilation systems
Preventing backflow and leakage in ductwork
Use in residential and light-commercial ventilation installations
Key specifications
Applicable duct diameter: 125 mm nominal
Type: closing damper with integrated gasket for airtight shut-off
Shape: round
Function: manual or system-actuated closure to isolate duct sections and control airflow
Typical application: ventilation and HVAC ductwork sealing and isolation
How to use
Install the ALNOR DASL-125 in a section of round ductwork with a matching 125 mm internal diameter, ensuring the gasket faces the sealing side. Secure the damper into the duct using appropriate fasteners or clamps compatible with the duct material. Operate the closing mechanism to achieve a full seal when isolation is required; verify the gasket sits evenly around the circumference to maintain airtightness. Inspect the damper and gasket periodically and clean or replace the gasket if signs of wear or damage appear.
Usage recommendations
Verify compatibility with the duct material and nominal diameter before installation. Ensure access for inspection and maintenance and avoid exposing the damper to corrosive conditions or temperatures beyond the typical range for ventilation components. Replace a damaged gasket promptly to preserve airtight performance.

## Specifications

| Feature | Value |
|---|---|
| Weight | 0.0516 kg |

## FAQ

### How much does the ALNOR DASL-125 closing damper with gasket cost, and is it available for purchase?

The price is 10.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 8 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 29.06.2026 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 ALNOR 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 ALNOR 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/4595149/65968574_large.webp