Double sphere air valve with SS ball A-ZY-11
Quick Detail：flanged GGG50double sphere air release valve with stainless steel ball
Design standard: DIN/BS/ANSI EN558
Body material: ductile iron GGG50
Screen/mesh: SS304
Nominal diameter: 3″
Pressure: PN16
End connection: RF. Flange EN1092-1
Face to face: BS/ANS/EN558
Working temperature: -30℃~+120℃.
Test and inspection: API 598.
Air valve with Stainless steel mesh
Epoxy Powder Coated Inside and outside.
| Body material | GG25/GGG40/cast/ductile iron/Stainless steel |
| Ball | ABS or Rubber/Stainless steel |
| Surface | epoxy powder-coated Min.250 microns |
| Pressure Range | PN6 PN10 PN16 PN25 |
| Size Range | 2”-10” |
| Optional Ends | NPT BSPT male/Female |
| Optional Design | Single sphere type |
● 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
Handling and Storage
● Lifting the valve improperly may damage it. Do not fasten lifting devices to ports in valve. Lift the valve with slings, chains or cables fastened around the valve body, or fastened to bolts or rods through bolt holes in the flanges.
● If installation will be delayed, place valve indoors in secure, weather tight storage. If temporary outside storage is unavoidable, make sure a vermin proof rain cover (water shedding tarp, etc.) is secured around/over the valve to keep off rain and mud. Skid and set the assembly on a flat, solid, and well drained surface for protection from ground moisture, runoff and pooled rain
water.
Heating, boilers, solar water heaters, water supply systems, equipment support, etc.
