Ductile Iron Air Valves, Air Valves, Air Control Valves.
Air Valve Body: ductile iron.
Standard: DIN 3352/BS 5163/AWWA.
Pressure: 150 to 2,500LB.
Resilient gate valve PN10, PN16, PN25.
Body/bonnet: cast iron/ductile iron.
Wedge: cast iron/ductile iron with EPDM.
Stem: stainless steel.
Coating: epoxy painted with 200 microns.