# Radiator Bleed Valve FERRO KZ1 with O-ring 1/2" — radiator air vent fitting

**URL:** https://aio.lv/en/product--ferro-kz1--11700174
**Data updated:** 2026-03-08 08:46 (EET)
**Category:** Heating Radiators
**Manufacturer:** FERRO
**Manufacturer code:** KZ1
**EAN:** 5901095611049
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 4.49 €
**Prices and availability valid until:** 2026-07-11 23:59
**Price without VAT (21%):** 3.71 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--ferro-kz1--11700174

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 03.07.2026 | free |
| Pickup points | 08.07.2026 | 1.99 EUR |
| Courier delivery to door | 08.07.2026 | 4.99 EUR |

## Summary description

FERRO KZ1 radiator bleed valve with O-ring and 1/2" thread is a compact air-vent fitting designed for manual release of trapped air from heating radiators and convectors. The valve includes a sealing O-ring and standard 1/2" connection, suitable for replacement or installation in domestic and commercial heating systems to improve heat distribution and system efficiency.

## Long description

FERRO KZ1 radiator bleed valve with O-ring and 1/2" thread is a compact manual air-vent fitting designed to release trapped air from heating radiators and convectors. The valve’s simple mechanical design provides controlled ventilation of radiator systems to restore even heat distribution and reduce cold spots. Supplied with a sealing O-ring and a standard 1/2" connection, this fitting is intended for replacement or new installation in domestic and light commercial hydronic heating systems.
Advantages
The FERRO KZ1 valve offers reliable manual operation with a tight seal provided by the included O-ring, minimising leakage after bleeding. Its compact form and standard 1/2" thread make it compatible with common radiator connections, allowing straightforward replacement without modifying existing pipework. The valve’s robust construction ensures durability in typical heating system conditions and facilitates easy access for routine maintenance.
Suitable for
Bleeding radiators and convectors in residential heating systems
Replacement of worn or leaking manual bleed valves
Installation in apartments, houses, small offices or light commercial buildings
Routine maintenance to improve heat transfer and eliminate cold spots
Key specifications
Connection thread: 1/2" (standard radiator fitting)
Sealing: O-ring included for leak prevention
Operation: manual bleed valve
Application: radiators and convectors in hydronic heating systems
Material characteristics: metal body with elastomer sealing (O-ring)
How to use
Ensure the heating system is at low pressure or turned off and the radiator is cool enough to touch. Place a small container or cloth beneath the bleed point. Insert the appropriate bleed key or screwdriver into the valve and turn slowly to open the vent until air hisses out, then close when a steady stream of water appears. Check the valve seating for leaks and wipe away any spilled water. After bleeding radiators, verify system pressure and refill or repressurise the heating circuit if necessary.
Usage recommendations
Use the valve only for manual bleeding of radiator systems; avoid excessive force when opening to protect the O-ring seal. Regularly inspect the valve during seasonal maintenance and replace the O-ring if signs of wear or leakage appear to maintain reliable sealing and operation.

## FAQ

### How much does the Radiator bleed valve FERRO KZ1 1/2" 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 — 70 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 03.07.2026 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/11700174/67083298_large.webp