---
product_id: 129773998
title: "Automatic Air Vent Valve 1/8 Inch Brass"
brand: "hydro master"
price: "482 kr"
currency: NOK
in_stock: true
reviews_count: 12
category: "Hydro Master"
url: https://www.desertcart.no/products/129773998-automatic-air-vent-valve-1-8-inch-brass
store_origin: NO
region: Norway
---

# 150 psi max pressure 240°F max temperature 1/8" NPT universal fit Automatic Air Vent Valve 1/8 Inch Brass

**Brand:** hydro master
**Price:** 482 kr
**Availability:** ✅ In Stock

## Summary

> ♨️ Upgrade Your Heat Game: The Smart Valve Every Pro Swears By!

## Quick Answers

- **What is this?** Automatic Air Vent Valve 1/8 Inch Brass by hydro master
- **How much does it cost?** 482 kr with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.no](https://www.desertcart.no/products/129773998-automatic-air-vent-valve-1-8-inch-brass)

## Best For

- hydro master enthusiasts

## Why This Product

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

## Key Features

- • **Built to Last:** Heavy-duty brass construction ensures durability and eco-friendly reliability for years of maintenance-free operation.
- • **Effortless Air Bleeding:** Set it and forget it—automatic venting keeps your heating system running flawlessly without manual hassle.
- • **Universal Compatibility:** 1/8" male NPT threading fits seamlessly with most residential hydronic systems and air scoops.
- • **Energy Efficiency Booster:** Eliminates trapped air to prevent cold spots and uneven heating, reducing energy bills and boosting comfort.
- • **Quick & Tool-Free Installation:** Swap out your manual valve in seconds—no special tools needed, saving you time and effort.

## Overview

The Hydro Master Automatic Air Vent Valve is a robust 1/8" brass valve designed for hydronic heating systems. It automatically vents trapped air up to 150 psi and 240°F, improving system efficiency and comfort. Easy to install with universal NPT threading, it eliminates manual bleeding, saving time and energy costs while ensuring consistent heat distribution.

## Description

desertcart.com: Hydro Master Automatic Air Vent Valve 1/8 Inch Brass : Patio, Lawn & Garden

Review: Hydro Master Automatic Air Vent Valve: A Game Changer for Hydronic Systems - As a plumber who has spent countless hours bleeding air from hydronic heating systems, discovering automatic air vent valves was a revelation. The Hydro Master 1/8 Inch Brass model is a fantastic example of a simple tool that provides a significant improvement in system efficiency and homeowner comfort. Initial Impressions and Installation Right out of the box, the valve has a solid, brass construction that feels durable and well-made. The 1/8-inch threading is standard and fits perfectly into most residential hydronic radiators, boilers, and manifolds. Installation is incredibly simple—it’s as easy as unscrewing a manual bleed valve and screwing this one in its place. The process is quick and doesn't require any special tools. This simplicity is a major benefit, especially for a routine maintenance task that can often be tedious. Performance and Value This is where the product truly shines. Before using these, I would have to manually bleed each radiator, which is a messy, time-consuming job. With this automatic vent, the system essentially bleeds itself. The valve’s internal float mechanism automatically opens to release trapped air and then seals as water enters, eliminating the need for manual intervention. This not only saves me a lot of time on service calls but also ensures that the system is always operating at peak efficiency. Trapped air can cause cold spots in radiators and reduce heat transfer, leading to higher energy bills. By continuously venting air, this valve ensures consistent and even heat distribution. For homeowners who were previously manually bleeding their systems, this valve is an absolute game-changer. The small investment pays for itself in time and hassle saved, not to mention the potential reduction in energy costs. Final Verdict The Hydro Master Automatic Air Vent Valve is an excellent, reliable product that I now recommend to all my clients with hydronic systems. Its durable construction and set-it-and-forget-it functionality make it an essential component for any boiler or radiator. It performs its job flawlessly, eliminating the need for manual bleeding and ensuring the system runs smoothly and efficiently. This product is a top-tier choice for any professional looking to improve their service or any homeowner wanting a simple solution to a common problem.
Review: good product - just as i ordered. good value. good quality. works as it should. keep a spare.

## Features

- Universal 1/8" auto air valve vent, suits for most heating system
- Made from heavy duty brass construction, durable and eco-friendly
- Maximum operating pressure 150 psi and maximum operating temperature 240°F
- 1/8" male NPT threaded connection
- Working great with our 1" and 1-1/4" air scoop

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07PQFWWZC |
| Best Sellers Rank | #37,587 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #2,169 in Fittings |
| Brand | HYDRO MASTER |
| Brand Name | HYDRO MASTER |
| Customer Reviews | 4.6 out of 5 stars 686 Reviews |
| Exterior Finish | Brass |
| Inlet Connection Size | 0.13 inches |
| Inlet Connection Type | National Pipe Tapered |
| Manufacturer | Boro |
| Manufacturer Part Number | 692232533465 |
| Material | Brass |
| Material Type | Brass |
| Maximum Pressure | 150 psi |
| Model Number | 692232533465 |
| Number of Items | 1 |
| Number of Pieces | 1 |
| Number of Ports | 1 |
| Outlet Connection Size | 0.13 inches |
| Outlet Connection Type | MNPT |
| Size | 1/8” |
| Thread Size | 1/8 inch |
| Thread Type | NPT |
| UPC | 692232533465 |
| Unit Count | 1 Count |
| Valve Type | Air Control Valve |

## Product Details

- **Brand:** HYDRO MASTER
- **Exterior Finish:** Brass
- **Inlet Connection Size:** 0.13 Inches
- **Inlet Connection Type:** National Pipe Tapered
- **Material:** Brass
- **Maximum Operating Pressure:** 150 Pound per Square Inch
- **Number of Ports:** 1
- **Outlet Connection Size:** 0.13 Inches
- **Outlet Connection Type:** MNPT
- **Unit Count:** 1.0 Count

## Images

![Automatic Air Vent Valve 1/8 Inch Brass - Image 1](https://m.media-amazon.com/images/I/61GfawJNiEL.jpg)

## Questions & Answers

**Q: Do you loosen the cap on top?**
A: Yes, you must loosen the cap for the air to vent. If you don't it has no where to vent to. Loosen cap 1/2 to full turn. don't over loosen.

**Q: can this be mounted horizontally?**
A: The air vent must be installed vertically.

**Q: Can this be used to purge air from a well water line (cold) after the pump and before it gets to the house?**
A: Yes, but it should be installed at the highest point in the line.

**Q: Does Bignell know water is water hot or cold ?**
A: No it is for steam it only works hot ..used to bleed the line of air so water flows evenly thru line

## Customer Reviews

### ⭐⭐⭐⭐⭐ Hydro Master Automatic Air Vent Valve: A Game Changer for Hydronic Systems
*by V***Y on September 24, 2025*

As a plumber who has spent countless hours bleeding air from hydronic heating systems, discovering automatic air vent valves was a revelation. The Hydro Master 1/8 Inch Brass model is a fantastic example of a simple tool that provides a significant improvement in system efficiency and homeowner comfort. Initial Impressions and Installation Right out of the box, the valve has a solid, brass construction that feels durable and well-made. The 1/8-inch threading is standard and fits perfectly into most residential hydronic radiators, boilers, and manifolds. Installation is incredibly simple—it’s as easy as unscrewing a manual bleed valve and screwing this one in its place. The process is quick and doesn't require any special tools. This simplicity is a major benefit, especially for a routine maintenance task that can often be tedious. Performance and Value This is where the product truly shines. Before using these, I would have to manually bleed each radiator, which is a messy, time-consuming job. With this automatic vent, the system essentially bleeds itself. The valve’s internal float mechanism automatically opens to release trapped air and then seals as water enters, eliminating the need for manual intervention. This not only saves me a lot of time on service calls but also ensures that the system is always operating at peak efficiency. Trapped air can cause cold spots in radiators and reduce heat transfer, leading to higher energy bills. By continuously venting air, this valve ensures consistent and even heat distribution. For homeowners who were previously manually bleeding their systems, this valve is an absolute game-changer. The small investment pays for itself in time and hassle saved, not to mention the potential reduction in energy costs. Final Verdict The Hydro Master Automatic Air Vent Valve is an excellent, reliable product that I now recommend to all my clients with hydronic systems. Its durable construction and set-it-and-forget-it functionality make it an essential component for any boiler or radiator. It performs its job flawlessly, eliminating the need for manual bleeding and ensuring the system runs smoothly and efficiently. This product is a top-tier choice for any professional looking to improve their service or any homeowner wanting a simple solution to a common problem.

### ⭐⭐⭐⭐⭐ good product
*by J***N on August 5, 2026*

just as i ordered. good value. good quality. works as it should. keep a spare.

### ⭐⭐⭐⭐ IT WORKS!!!
*by R***T on July 25, 2025*

ITS BEEN IN USE FOR A WEEK & IM HAPPY FOR MORE WEEKS!!!!

## Frequently Bought Together

- Hydro Master Automatic Air Vent Valve 1/8 Inch Brass
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---

*Product available on Desertcart Norway*
*Store origin: NO*
*Last updated: 2026-10-02*