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header-product ALNOR DAOS-100 Return Damper
5.99 €

ALNOR DAOS-100 Return Damper

Return Damper ALNOR DAOS-100 Photo 1
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ALNOR DAOS-100 Return Damper

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ALNOR DAOS-100 Return Damper

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Short description

The ALNOR DAOS-100 is a high-quality return damper designed for ventilation systems. It effectively regulates airflow and prevents backflow in ductwork, ensuring optimal system performance. This durable damper is suitable for various residential and commercial HVAC applications, providing reliable operation and easy integration into standard ventilation setups.
Available for order: 74 pcs.
Warranty: 2 Years
SKU: 4907251
Manufacturer: ALNOR
free shipment

Cheapest delivery:

Latvijas Pasts pakomāts

Pick-up points

Latvijas Pasts pakomāts

Cost

1.99 €

Deliver

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Customer service center
2b. Kengaraga str., Riga, Latvia, LV-1063
01.07.2026 {{selectedOffer.officeDeliveryString}}
free
Courier Delivery Please note that in case of a large parcel additional delivery costs may apply!
06.07.2026 {{selectedOffer.courierDeliveryString}}
From 4.99 € (Weight: 0.18 kg)
Parcel couriers
Latvijas Pasts pakomāts / Unisend LV / DPD Paku skapis / Omniva LV / Venipak Pickup LV / Venipak Locker LV / Latvijas Pasts nodaļa
06.07.2026 {{selectedOffer.parcelStationDeliveryString}}
From 1.99 €
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Payment Methods:
Bank transfer, Bank cards on-line, Apple Pay, Google Pay
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Product information

Description

The ALNOR DAOS-100 return damper is a precision-engineered component designed to manage airflow within ventilation and HVAC systems. This device serves as a critical element for maintaining pressure balance and preventing unwanted backflow in ductwork, thereby enhancing the overall efficiency and longevity of your ventilation setup. Constructed from high-quality materials, the DAOS-100 offers robust performance and reliable operation in diverse environments.

Advantages

The primary benefit of the ALNOR DAOS-100 is its ability to provide consistent airflow regulation, which is essential for maintaining indoor air quality and system efficiency. Its design facilitates seamless integration into standard circular duct systems, reducing installation time and complexity. Furthermore, the durable construction ensures that the damper remains functional over extended periods, minimizing the need for frequent maintenance or replacement in demanding HVAC applications.

Suitable for

  • Residential ventilation systems
  • Commercial HVAC installations
  • Airflow control in supply and exhaust ducts
  • Preventing backdrafts in ventilation networks

When it may not be suitable

This damper is not intended for use in environments with highly corrosive gases or extreme temperatures that exceed the manufacturer's specified operating range. It is also not suitable for applications requiring motorized or automated airflow control, as this is a passive mechanical device.

Key specifications

  • Type: Return damper
  • Compatibility: Standard circular ductwork
  • Material: Galvanized steel
  • Function: Backflow prevention and airflow regulation

How to use

The ALNOR DAOS-100 should be installed directly into the ductwork at the designated point of airflow control. Ensure that the damper is oriented correctly according to the intended direction of airflow to allow the blades to open and close as required. Secure the unit firmly within the duct using appropriate fasteners and seal the connections with duct tape or sealant to prevent air leakage, ensuring the system remains airtight.

What to consider before purchase

  • Verify the diameter of your existing ductwork to ensure compatibility with the 100mm size.
  • Check the airflow requirements of your specific ventilation system.
  • Ensure the installation location allows for future access if inspection is required.

Usage recommendations

For optimal performance, inspect the damper blades periodically to ensure they are free from dust accumulation or debris that could impede movement. Proper installation is critical to prevent noise caused by vibration or loose connections.
All features
Weight:
0.181 kg

Description

Machine translation. Load original

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Customer reviews

Customer questions

FAQ

How much does the Return Damper ALNOR DAOS-100 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 — 74 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. We will assist with consultation, warranty claim processing, and coordination with certified service centers.
warranty
14-Day Return Policy We are confident in our quality, but if the purchase doesn’t fit — you have 14 days to return the product with peace of mind.
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Fast Delivery Get your orders as quickly as possible — right to your door, parcel lockers, or pickup points across Latvia and the EU.
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Secure Payment Pay the way you prefer: cash, VISA, MasterCard, Apple Pay, Google Pay, bank transfer, or 0% installment plan.
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Quality Since 2008 AiO.lv has been on the market for over 18 years and has earned trust — with more than 6000 genuine positive reviews on Google.