Single Orifice Air Valve
IO Valves Single Orifice Air Valves are compact, float-operated valves designed for efficient air management in smaller-diameter water pipelines. Installed at high points in the line, they automatically release accumulated air during operation and allow air to enter the pipeline during draining, preventing vacuum formation. Their simple and robust construction ensures reliable performance, low maintenance, and effective protection of pumps and pipelines in municipal water supply and distribution networks.
Size Range: DN 20 – 50
Pressure Rating: PN 10|16
Design Standard: EN 1074-4
Flange Drilling: EN 1092-2
Testing: EN 12266-1
Material of Construction
Body/Bonnet : Ductile Iron GGG 50
Float : ABS
Seat : EPDM
Hing Pin : SS 304
O Rings : NBR
Bracket : Brass
Cap : Brass
Fasteners : SS304
Coating : Epoxy Powder Coating Min.250µ
Operating Temperature : 0°C to +80°C
Typical Applications
Ø Potable water transmission lines
Ø Pumping mains
Ø Water treatment plants
Ø Irrigation networks
Ø Municipal water distribution system
Air Valves
Butterfly Valves
IO Valve’s DOBFV Valve double offset disc design minimizes contact between the disc and seat during operation, reducing friction and wear.
IO Valves Silent Type Check Valves operate as non-return valves, allowing smooth, uninterrupted flow in the forward direction with minimal head loss.
Non-Slam Chek Valve
Plunger Valve
IO Valve’s Plunger (Needle) Valves are specially designed for water supply and distribution systems, providing precise and stable flow