# DOSPEL 007-4250 Non-Return Valve DN100

**URL:** https://aio.lv/en/product--dospel-007-4250--12506693
**Data updated:** 2026-06-10 09:23 (EEST)
**Category:** Ventilation Filters
**Manufacturer:** DOSPEL
**Manufacturer code:** 007-4250
**EAN:** 5901560511133
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 3.99 €
**Prices and availability valid until:** 2026-07-19 23:59
**Price without VAT (21%):** 3.30 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--dospel-007-4250--12506693

## 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 | 1.99 EUR |
| Courier delivery to door | 06.07.2026 | 4.99 EUR |

## Summary description

The DOSPEL 007-4250 is a DN100 non-return valve designed for ventilation systems. It effectively prevents backflow of air, ensuring efficient airflow direction and maintaining system integrity. This durable component is suitable for residential and commercial ventilation setups, providing reliable performance and easy installation in standard 100mm diameter ducting.

## Long description

The DOSPEL 007-4250 non-return valve is a specialized component engineered for ventilation systems with a 100 mm duct diameter. This device is designed to regulate airflow by allowing air to move in only one direction, effectively preventing backflow from outside or adjacent rooms. Constructed from high-quality ABS plastic, it offers a balance of durability and lightweight design, ensuring it remains stable within your ventilation ducting over long periods of operation.
Advantages
The primary benefit of this non-return valve is its ability to maintain the integrity of your ventilation system by stopping unwanted air drafts and odors from entering your living or working space. Its robust ABS plastic construction provides excellent resistance to environmental factors, ensuring a long service life. The design is optimized for standard 100 mm ducting, which allows for a straightforward and secure installation process in both residential and commercial settings.
Suitable for
Residential ventilation systems
Commercial exhaust setups
Preventing cold air backdrafts
Maintaining unidirectional airflow in ducting
This valve may not be suitable for industrial applications involving high-temperature exhaust gases or corrosive chemical vapors, as the ABS plastic material is intended for standard air ventilation. Additionally, it is not designed for use in high-pressure systems where significant mechanical stress might exceed the structural limits of the valve flaps.
Key specifications
Diameter: 100 mm
Material: ABS plastic
Function: Non-return airflow control
Compatibility: Standard ventilation ducting
To install the valve, insert it directly into the 100 mm ventilation duct at the desired location. Ensure that the orientation of the valve flaps aligns with the intended direction of the airflow. Once positioned, verify that the flaps can open and close freely without obstruction to ensure optimal performance and minimal noise during operation.
What to consider before purchase
Verify that your existing duct diameter is exactly 100 mm
Check the airflow direction requirements of your specific ventilation layout
Ensure the installation point is accessible for future maintenance
For the best results, inspect the valve periodically to ensure that dust or debris does not accumulate on the flaps, as this can hinder their movement and reduce the efficiency of the backflow prevention.

## FAQ

### How much does the DOSPEL 007-4250 Non-Return Valve DN100 cost, and is it available for purchase?

The price is 3.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 471 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 DOSPEL 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 DOSPEL 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

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