Double sphere air release valve with flange A-H-02
Quick Detail：uctile iron double sphere air release valve with flange connection
Design standard: DIN/BS/ANSI EN558
Body material: Cast iron, ductile iron
Screen/mesh: ss304, ss316
Nominal diameter: 3″ DN80
Pressure: PN16
End connection: RF. Flange EN1902-1
Working temperature: -30℃~+300℃.
Test and inspection: API 598.
Connection: Flange ends conform to EN1092-1/ ANSI 150LBS
Performance:
● The Air Release Valve is automatic in operation. They have much smaller orifices than?Vacuum Valves. They release small pockets of air that gather at the high points of a system?after it is filled and under pressure.?
● The Air Release Valve has the ability to open against internal pressure because it has?a small orifice and a leverage mechanism that multiplies the force of the float.
This force must be greater than the internal pressure across the orifice in order to open?the orifice when a pocket of air needs to be vented
| Body material available | GG25/GGG40/cast/ductile iron/Stainless steel |
| Ball material available | ABS or Rubber/Stainless steel |
| Surface | epoxy powder-coated Min.250 microns |
| Size Range | 2″-10″ DN50-DN250 |
| Pressure Range | PN6 PN10 PN16 PN25 |
| Optional Design | Single Orifice |
| Optional Connection | NPT, BSPT, male /Female |
● The Air Release Valve is automatic in operation. They have much smaller orifices than?Vacuum Valves. They release small pockets of air that gather at the high points of a system?after it is filled and under pressure.
● The Air Release Valve has the ability to open against internal pressure because it has?a small orifice and a leverage mechanism that multiplies the force of the float.
This force must be greater than the internal pressure across the orifice in order to open?the orifice when a pocket of air needs to be vented
Clean Water Air Release Valves should always be installed in a vertical position at high?points of a pipeline. An isolation valve between this unit and the transmission (pipeline) system is recommended.
