---
product_id: 16824321
title: "250041A Solar Systems Automatic Air Vent, 1/2-Inch NPT Connection"
brand: "caleffi"
price: "587 zł"
currency: PLN
in_stock: true
category: "Caleffi"
url: https://www.desertcart.pl/products/16824321-250041a-solar-systems-automatic-air-vent-1-2-inch-npt
store_origin: PL
region: Poland
---

# Automatic air release for solar heating 0.5-inch NPT male connection Durable brass construction 250041A Solar Systems Automatic Air Vent, 1/2-Inch NPT Connection

**Brand:** caleffi
**Price:** 587 zł
**Availability:** ✅ In Stock

## Summary

> 🔥 Keep your solar system running flawlessly—air out, power up! ⚙️

## Quick Answers

- **What is this?** 250041A Solar Systems Automatic Air Vent, 1/2-Inch NPT Connection by caleffi
- **How much does it cost?** 587 zł with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.pl](https://www.desertcart.pl/products/16824321-250041a-solar-systems-automatic-air-vent-1-2-inch-npt)

## Best For

- caleffi enthusiasts

## Why This Product

- Trusted caleffi brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Automatic Air Purge:** Eliminates trapped air during filling to boost system efficiency
- • **Premium Brass Build:** Corrosion-resistant for long-lasting, reliable performance
- • **Compact & Lightweight:** 3x3x7 inches, just 11.2 ounces—engineered for easy installation
- • **Trusted Italian Engineering:** From Caleffi, a leader in high-performance heating components
- • **Seamless Solar System Integration:** Effortlessly fits 1/2-inch NPT connections for quick setup

## Overview

The Caleffi 250041A is a precision-engineered automatic air vent designed for closed solar heating circuits. Featuring a 1/2-inch NPT male connection and durable brass construction, it automatically releases trapped air during system filling, enhancing efficiency and longevity. Compact and lightweight, this Italian-made component is a must-have for professionals seeking reliable, high-performance solar system solutions.

## Description

Product Description Caleffi is the leading Italian manufacturer of high-quality components for heating, conditioning and plumbing systems and supplier of high performance hydroid solutions. From the Manufacturer Caleffi is the leading Italian manufacturer of high-quality components for heating, conditioning and plumbing systems and supplier of high performance hydroid solutions.

## Features

- Used in the closed circuits of solar heating systems
- Allows air contained in the fluid to be released automatically during the filling process
- Connection Type: NPT male
- Connection Size: 0.5-Inch

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B008V64UKQ |
| Best Sellers Rank | #1,062,991 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #1,710 in Air Tool Fittings |
| Brand Name | Caleffi |
| Color | Silver |
| Connector Type | NPT |
| Customer Reviews | 3.6 3.6 out of 5 stars (8) |
| Exterior Finish | Brass |
| Global Trade Identification Number | 08016615187458 |
| Item Dimensions | 3 x 3 x 7 inches |
| Item Weight | 11.2 ounces |
| Manufacturer | Caleffi |
| Manufacturer Part Number | 250041A |
| Material Type | Brass |
| Model Number | 250041A |
| Number of Packs | 1 |
| Number of Pieces | 1 |
| Size | 0.5 inches |
| Thread Type | NPT |
| Unit Count | 1 Count |

## Product Details

- **Brand:** Caleffi
- **Color:** Silver
- **Connector Type:** NPT
- **Exterior Finish:** Brass
- **Item Weight:** 11.2 ounces
- **Item dimensions L x W x H:** 3 x 3 x 7 inches
- **Material:** Brass
- **Number of Pieces:** 1
- **Size:** 0.5 inches
- **Thread Type:** NPT

## Images

![250041A Solar Systems Automatic Air Vent, 1/2-Inch NPT Connection - Image 1](https://m.media-amazon.com/images/I/61e78q6xwAL.jpg)

## Questions & Answers

**Q: How does this vent use 3 watts at 24 volts? I cannot find this requirement in the company spec sheet.**
A: Doesn't use any power. It is just a float operated vent valve

**Q: dear sir i need the below product description  1-Max working pressure 2-max discharge pressure 3- temperature range 4-Max percentage of glycol**
A: 1-Max working pressure      10 Bar

2-max discharge pressure    5 Bar

3- temperature range           -30–180°C

4-Max percentage of glycol  50%

## Frequently Bought Together

- Caleffi 250041A Solar Systems Automatic Air Vent, 1/2-Inch NPT Connection
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**Shop now:** [https://www.desertcart.pl/products/16824321-250041a-solar-systems-automatic-air-vent-1-2-inch-npt](https://www.desertcart.pl/products/16824321-250041a-solar-systems-automatic-air-vent-1-2-inch-npt)

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*Product available on Desertcart Poland*
*Store origin: PL*
*Last updated: 2026-11-05*