# Mechanical Air Vent FERRO O15M 1/2 with Adjustment Knob

**URL:** https://aio.lv/en/product--ferro-o15m--12014001
**Data updated:** 2026-03-11 20:48 (EET)
**Category:** Heating Radiators
**Manufacturer:** FERRO
**Manufacturer code:** O15M
**EAN:** 5903624927119
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 6.99 €
**Prices and availability valid until:** 2026-07-11 23:59
**Price without VAT (21%):** 5.78 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--ferro-o15m--12014001

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 06.07.2026 | free |
| Pickup points | 09.07.2026 | 1.99 EUR |
| Courier delivery to door | 09.07.2026 | 4.99 EUR |

## Summary description

Mechanical air vent by FERRO, model O15M, with 1/2-inch connection and an adjustment knob for manual air release. Designed to automatically and manually remove trapped air from heating and plumbing systems to improve circulation and prevent noise and corrosion. Suitable for radiators, boiler circuits, and closed hydronic systems where reliable venting and simple adjustment are required.

## Long description

Mechanical air vent FERRO O15M 1/2 with Adjustment Knob is a compact valve designed to remove trapped air from heating and plumbing systems. The device combines an automatic venting function with a manual adjustment knob that allows controlled release of air. Intended for installation on radiators, boiler circuits and closed hydronic systems, this vent supports stable circulation and helps reduce noise and corrosion caused by air pockets.
Advantages
The FERRO O15M offers both automatic and manual venting in a single unit, enabling continuous removal of microbubbles as well as intentional manual purging when needed. Its 1/2-inch threaded connection ensures compatibility with standard fittings commonly used in residential and light commercial heating systems. The adjustment knob provides precise control over air release, while the compact construction allows installation in confined spaces and on different types of piping and radiator outlets.
Suitable for
Domestic and small commercial radiator systems
Boiler circuits and heat-exchange loops
Closed hydronic heating installations
Locations where periodic manual venting or fine adjustment of air release is required
Key specifications
Connection size: 1/2-inch threaded fitting
Operation: combined automatic venting with manual adjustment knob
Installation position: vertical or as recommended by system documentation
Materials: corrosion-resistant body and internal components suitable for heating water
Application: designed for closed heating and plumbing systems to remove trapped air
How to use
Install the mechanical air vent on an accessible high point of the system or at radiator outlets according to system layout and manufacturer guidance. Ensure the connection is properly sealed and tightened to the recommended torque for 1/2-inch fittings. Under normal operation the vent will expel microbubbles automatically; if larger air pockets are present, open the adjustment knob slowly to release air until water flow is steady, then close the knob. Follow safety procedures: isolate the system and reduce pressure if necessary before performing maintenance.
Usage recommendations
Regularly check the vent for signs of leakage, blockage or corrosion and perform manual venting after system maintenance, bleeding or when unusual noise indicates trapped air. Use compatible sealing materials for threaded joints and avoid overtightening. Replace the vent if automatic operation becomes unreliable or if internal components show wear.

## FAQ

### How much does the Mechanical Air Vent FERRO O15M 1/2 cost, and is it available for purchase?

The price is 6.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 20 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 06.07.2026 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 FERRO 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 FERRO 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/12014001/67502840_large.webp