Double Orifice Air Relief Valve

Specification:

1.Type Test：EN14525/BS8561
3.Ductile Iron：EN1563 EN-GJS-450-10
4.Coating：WIS4-52-01
5.Standard：EN545/ISO2531
6.Drilling Spec：EN1092-2

Features

A clever float design prevents air rushing out of the system from prematurely closing the valve

Large air flow capacity

All iron parts with contact to the water are coated with drinking water approved, fusion bonded epoxy

The resilient seals are made of EPDM rubber and the seat is ABS, all drinking water approved

All other internal parts are highly corrosion resistant AISI 316 stainless steel or ABS

No moving parts are touching the internal coating

The complete product is approved for drinking water

Components

(not wastewater) and neutral liquids max. 70° C

Double orifice, triple acting air valves are designed for automatic rapid pipe filling and pipe draining as well as for automatic discharge of accumulated air during normal working conditions. The unique ‘Aerokinetic’ design, where air rushing out of the system cannot force the float upwards and close it prematurely, makes sure that the valve closes only after all air has left the system and water has entered the chamber. All ductile iron components are coated with GSK approved fusion bonded epoxy to ensure high durability. All other components are made by either a WRAS approved polymer material or stainless steel to minimize corrosion risk. All seals are made of WRAS approved EPDM rubber featuring an excellent compression set and ability to regain its original shape.

A double orifice air release valve is a type of valve used in pipelines to release air and other gases that accumulate in the system. It is designed with two orifices, one for air release and the other for vacuum relief. The air release orifice allows air to escape from the pipeline when it is filled with water, while the vacuum relief orifice allows air to enter the pipeline when the pressure drops below atmospheric pressure.

The double orifice air release valve is typically installed at high points in the pipeline where air pockets are likely to form. It is essential for maintaining the efficiency and longevity of the pipeline system by preventing air pockets from causing damage to the pipes or reducing the flow rate of the fluid.