double orifice air valve with three function use, which can be used in water supply and drainage project.
double orifice air valve with three function use technical specification:
Size:DN40-300
Design standard: EN1074-4:2000
Flange standard: EN1092-2:1997
Testing standard: EN12266-1:2012
Working pressure: 16kgs/cm3 25kgs/cm3
Shell testing pressure: 25kgs/cm3 37.5kgs/cm3
Seat test pressure: 18kgs/cm3 27.5kgs/cm3
Media: water, neutral oil
External and internal coating: 100% fusion-bonded EPOXY
SS304/316 bolts/nuts/washers are available on request
double orifice air valve with three function use Material List
Body:Ductile Iron BS2879-500.7/DIN1693 GGG50/EN1563 GJS500
Float guide:ABS
Support: ABS
O-ring: EPDM BS2494
Cover:Ductile Iron BS2879-500.7/DIN1693 GGG50/EN1563 GJS500
Bolts and Nut: Zinc-plated steel BS4190
Seat:EPDM BS2494
Gasket: EPDM BS2494
Cap:Nylon/brass
Bracket: Nylon
Hinge pin: Stainless Steel BS1574
