Automatic Air Vent & Drain Valve for Heating Manifold System

SHUANGLIN VALVE HVAC Air Release Solution

Product Overview

The Automatic Air Vent & Drain Valve from SHUANGLIN VALVE is designed for modern heating and HVAC systems where trapped air and system pressure stability are critical concerns.

Air accumulation inside pipelines can significantly reduce heating efficiency and cause noise, uneven heat distribution, or pump stress. This valve is engineered to automatically release trapped air while providing an additional drainage outlet for system flushing.

It is widely used in underfloor heating manifolds, boiler systems, and closed-loop water circulation networks.

Functional Design

The upper structure of the valve is designed for automatic or semi-automatic air release, ensuring continuous removal of micro air bubbles during system operation.

The lower outlet is equipped with a drainage interface, allowing technicians to discharge water during maintenance or system flushing.

This dual-function structure helps maintain stable hydraulic performance and improves overall system efficiency.

Key Features

• Automatic air release design

• Integrated drain / flush outlet

• Suitable for HVAC and manifold systems

• Reduces air blockage and noise in pipelines

• Improves heating circulation efficiency

• Compact brass construction for long service life

Application Scenarios

This valve is commonly installed in underfloor heating manifolds, boiler outlet systems, pump circulation lines, and closed-loop HVAC networks, where air removal is essential for stable operation.