DN25 1” Automatic Air Vent Valve for HVAC Systems

Introduction

The DN25 1” automatic air vent valve is an essential component in modern HVAC and hydronic heating systems. It is designed to automatically remove trapped air from pipelines, ensuring stable water circulation and improving system efficiency.

How It Works

This air vent valve operates using a float mechanism. When air accumulates inside the system, the float drops and opens the exhaust port. Once water fills the chamber again, the float rises and seals the valve, preventing leakage.

Key Features

• Size: DN25 / 1” standard connection

• Thread options: BSP and NPT compatibility

• Material: Hpb59-1 brass or stainless steel structure

• Fully automatic air discharge system

• Compact design for manifold installation

• Reliable sealing performance with O-ring structure

Applications

• Underfloor heating systems

• HVAC pipe networks

• Water distribution manifolds

• Radiator heating systems

Conclusion

The DN25 automatic air vent valve is a critical solution for maintaining efficient and stable hydronic systems by continuously removing unwanted air.