# Mechanical Air Vent Valve kfa² 1/2" model 838-200-11 for heating and plumbing systems

**URL:** https://aio.lv/en/product--kfa-838-200-11--11699922
**Data updated:** 2026-03-08 08:45 (EET)
**Category:** Heating Radiators
**Manufacturer:** kfa²
**Manufacturer code:** 838-200-11
**EAN:** 5907571831383
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 4.49 €
**Prices and availability valid until:** 2026-07-21 23:59
**Price without VAT (21%):** 3.71 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--kfa-838-200-11--11699922

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 13.07.2026 | free |
| Pickup points | 16.07.2026 | 1.89 EUR |
| Courier delivery to door | 16.07.2026 | 4.99 EUR |

## Summary description

Mechanical air vent valve kfa² 1/2" model 838-200-11 designed to remove trapped air from heating and plumbing systems. This 1/2-inch mechanical air bleeder provides automatic or manual release of air pockets to improve circulation and prevent noise, corrosion, and performance loss in radiators, boilers, and closed-loop circuits. Suitable for residential and light commercial installations.

## Long description

Mechanical Air Vent Valve kfa² 1/2" model 838-200-11 for heating and plumbing systems is a 1/2-inch mechanical air bleeder designed to remove trapped air from closed-loop heating and plumbing circuits. The valve provides automatic air separation and the option for manual venting to maintain proper circulation in radiators, boilers, and pipework. It is intended for residential and light commercial installations to reduce noise, prevent corrosion, and help preserve system efficiency.
Advantages
The mechanical air vent valve combines automatic operation with a manual release option to ensure reliable elimination of air pockets without continuous monitoring. Constructed for compatibility with standard 1/2" pipe fittings, it offers straightforward installation and maintenance. By allowing trapped air to escape, the valve contributes to quieter system operation, improved heat transfer, and reduced risk of corrosion-related damage over time.
Suitable for (tasks / use cases)
Bleeding radiators and convectors in domestic heating systems
Removing air from boiler circuits and closed-loop heating installations
Use in domestic plumbing where trapped air affects circulation or causes noise
Light commercial heating systems requiring periodic or continuous air venting
Key specifications
Connection size: 1/2" (standard pipe thread compatible)
Type: mechanical air vent with automatic and manual venting functions
Application: closed-loop heating and plumbing systems
Materials: corrosion-resistant components suitable for water-based systems
Installation orientation: vertical preferred for reliable automatic operation
Operating environment: residential and light commercial indoor systems
How to use
Install the valve at high points in the heating or plumbing circuit where air accumulates, using appropriate sealing and thread sealing materials. When installed vertically, the valve will automatically expel trapped air; if necessary, use the manual release to purge air pockets during commissioning or maintenance. After venting, close the manual release and check the system pressure and flow to confirm restored circulation.
Usage recommendations
Fit the valve in an accessible location to allow periodic inspection and manual venting. Verify compatibility with the system’s materials and operating temperature. During initial start-up and after maintenance, monitor the system for any remaining noise or performance issues and re-vent if required.

## FAQ

### How much does the kfa² Mechanical Air Vent 1/2" 838-200-11 cost, and is it available for purchase?

The price is 4.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 9 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 13.07.2026 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 kfa² 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 kfa² 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/11699922/67083123_large.webp