# Damper ALNOR DASL-100 closing damper with gasket

**URL:** https://aio.lv/en/product--alnor-dasl-100--4575761
**Data updated:** 2026-03-07 14:49 (EET)
**Category:** Ventilation Filters
**Manufacturer:** ALNOR
**Manufacturer code:** DASL-100
**EAN:** 4772013122562
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 9.99 €
**Prices and availability valid until:** 2026-07-22 23:59
**Price without VAT (21%):** 8.26 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--alnor-dasl-100--4575761

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 01.07.2026 | free |
| Pickup points | 06.07.2026 | 1.89 EUR |
| Courier delivery to door | 06.07.2026 | 4.99 EUR |

## Summary description

Closing damper ALNOR DASL-100 with gasket designed for regulating and isolating airflow in ventilation and duct systems. The unit features a gasketed edge to ensure reduced leakage when closed and suit installation in round or rectangular ducts depending on system configuration. Intended for use in HVAC applications to control flow, balance systems, and provide shut-off capability during maintenance.

## Long description

The ALNOR DASL-100 closing damper with gasket is a ventilation damper designed to regulate and isolate airflow in HVAC duct systems. Built for applications that require controlled shut-off and reduced leakage, this damper incorporates a gasketed edge to improve sealing performance when closed. The unit is suitable for integration into round or rectangular ducts depending on installation requirements and can be used for balancing air distribution or providing isolation during maintenance.
Advantages
The gasketed sealing edge reduces air leakage and improves shut-off effectiveness compared with non-gasketed dampers. The design allows straightforward integration into existing ductwork and supports reliable operation for airflow regulation. Its construction is intended to withstand the typical conditions of mechanical ventilation systems and to provide consistent performance for balancing and isolation tasks.
Suitable for
Regulating airflow in ventilation and HVAC systems
Isolating duct sections for maintenance or repairs
Balancing air distribution between zones
Installation in round or rectangular duct configurations
Key specifications
Function: closing damper with sealing gasket for shut-off and regulation
Compatibility: designed for duct integration in ventilation systems (round or rectangular layouts)
Sealing: gasketed edge to reduce leakage when closed
Application area: HVAC ventilation ducts for commercial or residential systems
How to use
Install the damper into the duct run according to the duct shape and system layout, ensuring the gasketed edge aligns with the mating surface to achieve a proper seal. Connect any actuator or manual control mechanism as required by the installation, then verify operation by cycling the damper and checking for smooth movement and effective closure. Use airflow measurement or balancing procedures after installation to set the damper position for the required airflow rates.
Usage recommendations
For optimal sealing, ensure mating duct surfaces are clean and free from damage before fitting the damper. Periodically inspect the gasket for wear and replace if compression or deterioration reduces sealing performance. If the damper is fitted with an actuator, follow the actuator manufacturer's mounting and commissioning instructions to avoid misalignment or over-torque that could impair operation.

## Specifications

| Feature | Value |
|---|---|
| Weight | 0.0423 kg |

## FAQ

### How much does the ALNOR DASL-100 closing damper cost, and is it available for purchase?

The price is 9.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 56 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 01.07.2026 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 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/4575761/65968573_large.webp