---
product_id: 498353779
title: "Hydro Master Automatic Air Vent Valve 1/8 Inch Brass"
brand: "hydro master"
price: "617 kr"
currency: NOK
in_stock: true
reviews_count: 5
category: "Hydro Master"
url: https://www.desertcart.no/products/498353779-hydro-master-automatic-air-vent-valve-1-8-inch-brass
store_origin: NO
region: Norway
---

# Max 150 psi & 240°F operating range 1/8" NPT threaded connection Heavy-duty brass construction Hydro Master Automatic Air Vent Valve 1/8 Inch Brass

**Brand:** hydro master
**Price:** 617 kr
**Availability:** ✅ In Stock

## Summary

> 🔥 Upgrade your heating game with Hydro Master’s brass-brilliant automatic vent! 🔩

## Quick Answers

- **What is this?** Hydro Master Automatic Air Vent Valve 1/8 Inch Brass by hydro master
- **How much does it cost?** 617 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/498353779-hydro-master-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:** Premium brass body ensures durability and eco-friendly reliability under pressure.
- • **Universal Fit:** Standard 1/8" NPT threading fits most residential hydronic heating systems seamlessly.
- • **Peak System Efficiency:** Continuous air release prevents cold spots and boosts heat transfer, lowering energy bills.
- • **Effortless Air Bleeding:** Set-it-and-forget-it automatic venting eliminates manual radiator bleeding.
- • **Quick & Tool-Free Installation:** Swap out your manual valve in seconds—no special tools or expertise needed.

## Overview

The Hydro Master Automatic Air Vent Valve is a robust 1/8" brass valve designed for hydronic heating systems. It features a durable brass construction, a universal 1/8" NPT threaded connection, and operates safely up to 150 psi and 240°F. This valve automatically vents trapped air, enhancing system efficiency and comfort while eliminating manual bleeding. Ideal for professionals and homeowners seeking hassle-free, energy-saving heating solutions.

## Description

Thanks for choosing Hydro Master! 1" and 1-1/4" air scoops are available.

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: quality - as always 100% satosfied

## 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 |
| Brand | HYDRO MASTER |
| Connector Type | Threaded |
| Customer Reviews | 4.6 out of 5 stars 641 Reviews |
| Exterior Finish | Brass |
| Exterior finish | Brass |
| Inlet Connection Size | 0.13 Inches |
| Inlet Connection Type | National Pipe Tapered |
| Inlet connection size | 0.13 Inches |
| Inlet connection type | National Pipe Tapered |
| Manufacturer | Boro |
| Material | Brass |
| Maximum Pressure | 150 Pound per Square Inch |
| Model Number | 692232533465 |
| Number of Ports | 1 |
| Outlet Connection Size | 0.13 Inches |
| Outlet Connection Type | MNPT |
| Outlet connection type | MNPT |
| Part Number | 692232533465 |
| Size | 1/8" |
| Smart Home Compatibility | Not Smart Home Compatible |
| Thread Size | 1/8 inches |
| Thread Type | NPT |
| UPC | 692232533465 |
| Unit Count | 1.0 count |
| Valve Type | Vent Valve |

## Product Details

- **Material:** Brass
- **Brand:** HYDRO MASTER
- **Exterior finish:** Brass
- **Inlet connection size:** 0.13 inches
- **Inlet connection type:** National Pipe Tapered
- **Outlet connection type:** MNPT
- **Maximum operating pressure:** 150 Pound per Square Inch
- **Number of ports:** 1
- **Outlet connection size:** 0.13 inches
- **Manufacturer:** Boro

## Images

![Hydro Master 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 24 September 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.

### ⭐⭐⭐⭐⭐ quality
*by P***. on 5 June 2026*

as always 100% satosfied

### ⭐⭐⭐⭐⭐ Worked great to fix my radioator
*by J***F on 28 April 2026*

Worked great to fix my radiator. The previous valve leaked from decades of use. Installation was easy. Got my heat back up and running within minutes of its arrival. It took longer to take the screws off the cover of my radiator than it did to thread this on.

## Frequently Bought Together

- Hydro Master Automatic Air Vent Valve 1/8 Inch Brass
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- Watts ETX-30 Non-Potable Water Carbon Steel Expansion Tank for Closed Loop Hydronic Heating System Piping, 1/2" MNPT Connection, Tank Volume 4.7 Gallons, Maximum Pressure 75 psi

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*Product available on Desertcart Norway*
*Store origin: NO*
*Last updated: 2026-10-13*