# Automatic radiator air vent CALEFFI AERCAL 1 1/4" right-side connection

**URL:** https://aio.lv/en/product--caleffi-507711--11699700
**Data updated:** 2026-03-08 08:45 (EET)
**Category:** Heating Radiators
**Manufacturer:** CALEFFI
**Manufacturer code:** 507711
**EAN:** 5902973800333
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 26.49 €
**Prices and availability valid until:** 2026-07-17 23:59
**Price without VAT (21%):** 21.89 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--caleffi-507711--11699700

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 09.07.2026 | free |
| Pickup points | 14.07.2026 | 1.99 EUR |
| Courier delivery to door | 14.07.2026 | 4.99 EUR |

## Summary description

CALEFFI AERCAL automatic air vent for radiators, model 507711, with 1 1/4" right-side threaded connection. Designed to remove trapped air from radiator and heating circuits to maintain system efficiency and prevent noise and corrosion. Easy to install on radiator outlets or return lines; suitable for residential and commercial heating systems that accept 1 1/4" fittings.

## Long description

CALEFFI AERCAL automatic radiator air vent with a 1 1/4" right-side threaded connection is designed to continuously remove trapped air from radiators and heating circuits. The device maintains hydraulic efficiency, reduces noise caused by air pockets and helps minimise corrosion by preventing oxygen accumulation. It is intended for installation on radiator outlets or return lines where a right-side 1 1/4" fitting is used, and is suitable for both residential and commercial heating systems that accept this size.
Advantages
The automatic air vent operates without manual intervention, discharging accumulated air automatically and maintaining steady system performance. Its right-side 1 1/4" threaded connection provides straightforward mechanical compatibility with standard piping and radiator outlets. By reducing trapped air, the valve contributes to quieter operation, improved heat distribution and decreased risk of corrosion-related damage in closed heating circuits.
Suitable for
 Removing air from radiator outlets and return lines
 Residential central heating systems with 1 1/4" fittings
 Commercial heating circuits compatible with right-side threaded vents
 Maintenance and retrofit projects where automatic air elimination is required
Key specifications
 Connection type: right-side threaded 1 1/4"
 Function: automatic air release for radiators and heating circuits
 Installation location: radiator outlet or return line
 Suitable systems: closed central heating systems (residential and commercial)
 Operation: automatic discharge of trapped air without manual venting
How to use
Install the AERCAL air vent on the designated radiator outlet or return line with the right-side 1 1/4" threaded connection, ensuring threads are clean and compatible sealing material is used according to pipework practice. After installation, venting occurs automatically during normal system operation; no regular manual intervention is required. Periodically inspect the vent for correct seating and absence of leaks, and follow general heating-system maintenance schedules to verify overall performance.
Usage recommendations
Use compatible thread sealant or tape when fitting the valve, avoid over-tightening to prevent damage to threads, and ensure the vent is accessible for inspection. Where system water quality is poor or contains debris, consider installing appropriate filters or strainers upstream to prevent blockage of the vent mechanism.

## FAQ

### How much does the CALEFFI AERCAL automatic air vent 1 1/4" right cost, and is it available for purchase?

The price is 26.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 5 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 09.07.2026 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 CALEFFI 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 CALEFFI 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/11699700/67082970_large.webp