Brass Air Vent valve

Basic Info
Material: Brass
Nominal pressure: ≤ 10bar
Working medium:cold and hot water
Working temperature: 0℃t≤110℃
Connection thread: ISO 228 standard
Specification: 1/2’’,3/4",3/8"
Cyinder pipe thread accord with ISO228 standards

Product Detail

Product Tags

Warranty: 2 Years Number: XF85692
After-sale Service: Online technical support Type: Floor Heating parts
Style: Modern Keywords: Radiator valve
Brand Name: SUNFLY Color: Nickel plated
Application: Apartment Size: 1/2’’,3/4",3/8"
Name: Brass Air Vent valve MOQ: 1000pcs
Place of Origin: Zhejiang, China
Brass Project Solution Capability: Graphic design, 3D model design, total solution for  Projects, Cross Categories Consolidation

Product parameters

AIR VENT XF85692 Model:XF83512 Specifications






A: 1/2’’



B: 75 B: 75 B: 75
C:Φ40 C:Φ40 C:Φ40
D:64 D:64 D:64aa

Product material

Brass Hpb57-3(Accepting other copper materials with customer-specified, such as Hpb58-2,Hpb59-1,CW617N,CW603N and so on)

Processing Steps


Raw Material, Forging, Roughcast, Slinging,  CNC Machining, Inspection, Leaking Test, Assembly, Warehouse, Shipping


Material Testing, Raw Material Warehouse, Put In Material, Self-Inspection, First Inspection, Circle Inspection, Forging, Annealing, Self-Inspection, First Inspection, Circle Inspection, Machining, Self-Inspection, First Inspection, Circle Inspection, Finished Inspection, Semi-Finished Warehouse, Assembling, First Inspection, Circle Inspection, 100% Seal Testing, Final Random Inspection, Finished Product Warehouse, Delivering


Air vent are used in independent heating systems, central heating systems, heating boilers, central air conditioning, floor heating and solar heating systems and other pipeline exhaust.


Main Export Markets

Europe,East-Europe,Russia,Middle-Asia,North America,South America and so on.

Product Description

1. Purpose and scope

A float air vent is used to automatically remove air and other gases from pipelines and air collectors of internal systems (heating systems, cold and hot water supply, heat supply of ventilation units, air conditioners, collectors).

It protects closed piping systems from corrosion and cavitation and from the formation of air jams. The air vent can be used on pipelines transporting liquid media that are non-aggressive to the product materials (water, solutions of

propylene and ethylene glycols with a concentration of up to 40%).

The air vent is supplied to the consumer complete with a shut-off valve. The shut-off valve is used to connect the air vent to the system, and allows the installation and dismantling of the air vent without emptying the system.

2. The principle of operation of the air vent

In the absence of air, the air vent housing is filled with liquid, and the amendment keeps the exhaust valve closed. When air collects in the float chamber, the water level in it drops, and the float itself sinks to the bottom of the body.Then, using the lever-hinge mechanism, an exhaust valve opens through which air is vented to the atmosphere. After air outlet, water again fills the float chamber, raising corrections, which leads to the closure of the exhaust valve.Opening / closing cycles of the valve are repeated until air from the nearest part of the pipeline is free of air, having ceased to collect in the float chamber.

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