---
product_id: 16824321
title: "250041A Solar Systems Automatic Air Vent, 1/2-Inch NPT Connection"
brand: "caleffi"
price: "93173CFA"
currency: XOF
in_stock: true
reviews_count: 6
url: https://www.desertcart.sn/products/16824321-250041a-solar-systems-automatic-air-vent-1-2-inch-npt
store_origin: SN
region: Senegal
---

# Automatic air release for solar heating Durable brass exterior finish 0.5-inch NPT precision fit 250041A Solar Systems Automatic Air Vent, 1/2-Inch NPT Connection

**Brand:** caleffi
**Price:** 93173CFA
**Availability:** ✅ In Stock

## Summary

> 🔥 Keep your solar system air-free and running smooth — the smart vent for savvy pros!

## Quick Answers

- **What is this?** 250041A Solar Systems Automatic Air Vent, 1/2-Inch NPT Connection by caleffi
- **How much does it cost?** 93173CFA with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sn](https://www.desertcart.sn/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

- • **Robust Brass Build:** Premium brass finish ensures corrosion resistance and long-term durability under demanding conditions.
- • **Automatic Air Purge:** Eliminates trapped air during filling to maximize heating efficiency and system longevity.
- • **Energy-Smart Design:** Operates at a low 3 watts and 24 volts, optimizing performance without energy waste.
- • **Compact & Lightweight:** At just 0.7 lbs and 3x3x7 inches, it’s engineered for easy installation without bulk.
- • **Seamless Solar Integration:** Effortlessly fits 1/2-inch NPT connections for flawless system compatibility.

## Overview

The Caleffi250041A is a precision-engineered automatic air vent designed for closed-loop solar heating systems. Featuring a 1/2-inch NPT male connection and durable brass construction, it automatically releases trapped air during system filling to enhance efficiency and prevent damage. Compact and energy-efficient, this vent is a must-have for professionals seeking reliable, maintenance-free solar system performance.

## Description

Caleffi250041A Solar Systems Automatic Air Vent, 1/2-Inch NPT Connection

## 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 |
|---------------|-------|
| Size | 0.5 inches |
| Brand | Caleffi |
| Color | Silver |
| Item dimensions L x W x H | 3 x 3 x 7 inches |
| Connector Type | NPT |
| Exterior Finish | Brass |
| Thread Type | NPT |
| Item Weight | 0.7 Pounds |
| Number of Pieces | 1 |
| Global Trade Identification Number | 08016615187458 |
| Manufacturer | Caleffi |
| Part Number | 250041A |
| Item Weight | 11.2 ounces |
| Product Dimensions | 3 x 3 x 7 inches |
| Item model number | 250041A |
| Is Discontinued By Manufacturer | No |
| Voltage | 24 Volts |
| Wattage | 3 watts |
| Item Package Quantity | 1 |
| Measurement System | Inch |
| Batteries Included? | No |
| Batteries Required? | No |

## Product Details

- **Size:** 0.5 inches
- **Brand:** Caleffi
- **Color:** Silver
- **Item dimensions L x W x H:** 3 x 3 x 7 inches
- **Connector Type:** NPT
- **Exterior Finish:** Brass
- **Thread Type:** NPT
- **Item Weight:** 0.7 Pounds
- **Number of Pieces:** 1
- **Global Trade Identification Number:** 08016615187458

## Images

![250041A Solar Systems Automatic Air Vent, 1/2-Inch NPT Connection - Image 1](https://m.media-amazon.com/images/I/41n0+9jZYxL.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%

## Customer Reviews

### ⭐⭐⭐⭐⭐ High quality
*by A***E on August 2, 2019*

Caleffi quality is hard to beat. This solar air vent is built for the high temps of a solar thermal system, machining is perfect, included instructions are simple and appropriate.

### ⭐⭐⭐⭐ got a lemon this time
*by F***O on September 2, 2017*

These are normally good for solar, but I just had one leak water immediately upon installation. Potable water at 120Degrees F and 60 psi.

### ⭐⭐⭐⭐⭐ Expensive  but works well for high temp applications
*by B***B on September 29, 2019*

Well made part looks good and works. Great for solar applications

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**Shop now:** [https://www.desertcart.sn/products/16824321-250041a-solar-systems-automatic-air-vent-1-2-inch-npt](https://www.desertcart.sn/products/16824321-250041a-solar-systems-automatic-air-vent-1-2-inch-npt)

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*Product available on Desertcart Senegal*
*Store origin: SN*
*Last updated: 2026-02-19*