Types of Air Release Valves and Their Functions

Air release valves play a crucial role in various heating and water circulation systems, including independent heating systems, central heating, boilers, central air conditioning, underfloor heating, and solar heating systems. As water circulates, dissolved air gradually separates and accumulates, forming air pockets or columns. Without proper air release, these air pockets can disrupt the system’s efficiency.

Here are the seven main types of air release valves and their functions:

1.Single Orifice Air Release Valve

Designed to prevent air locks and air resistance in pipelines.

It also acts as a vacuum breaker, allowing air intake to protect pipes from negative pressure during pump shutdowns.

Air Release Valves

2.Fast Exhaust Air Valve

Installed at the highest points of pipelines or locations where air accumulates.

Ensures smooth operation by eliminating trapped air and preventing flow obstruction that could reduce water output.

3.Combination Air Valve

Facilitates large-scale air release when water enters the pipeline.

During normal operation, small amounts of accumulated air are automatically discharged through a small vent hole, maintaining system efficiency.

4.Quick Release & Intake Air Valve

Releases large volumes of air during startup and allows air intake when negative pressure occurs.

Prevents pipeline damage by balancing internal pressure during operation.

5.Sewage Combination Air Valve

Specifically designed for sewage pipelines.

Removes air at high points in the system, ensuring the pipeline functions without blockages.

6.Micro Air Release Valve

Used in main water transmission systems, where dissolved air is continuously released.

Prevents the formation of air pockets, which can reduce water transmission efficiency by 5-15%.

7.Double Orifice Quick Air Release Valve

Operates by manually adjusting the valve stem to release trapped air.

Automatically seals when water fills the valve body and resumes normal air release when needed.

Each type of air release valve is designed to address specific challenges in heating and water distribution systems. Choosing the right valve ensures efficient operation, prevents air blockages, and enhances system performance. At Haihao Group, we provide high-quality air release valves tailored to meet diverse industry needs. Email:sales@haihaogroup.com