HIGH PERFORMANCE TRIPLE FUNCTION AIR VALVE

Enhanced Air Management for Large Diameter Pipelines

IO Valves High Performance Triple Function Air Valves are designed for efficient air management in large diameter and high-flow water pipelines. These valves offer rapid air release and intake capacity, ensuring pipeline protection during filling, operation, and draining under demanding hydraulic conditions.

Key Features

• Triple function operation providing large air release, continuous air release, and air admission

• Double orifice design for improved air discharge control and effective surge mitigation

• Reduced surge and water hammer by stabilizing pressure during pipeline filling and emptying

• Low maintenance construction with a simple and reliable float mechanism

• Corrosion-resistant ductile iron body with fusion bonded epoxy coating

• Fully automatic, float-controlled operation without external power

Pressure Rating PN 10/PN 16/PN 25

Size Range DN40 – DN 150

Design & Testing Standards

• Design Standard: EN 1074-4

• Flange Drilling: EN 1092-2

• Testing: EN 12266-1

• Operating Temperature: 0 °C to +80 °C

Material of Construction

Body / Cover / Cowl : Ductile Iron GGG 50

Float & Float Guide : ABS

Seat & Seat Ring : EPDM

Hinge Pin : Stainless Steel SS 304

O-Rings : NBR

Bracket : Brass

Cap : Brass

Fasteners : Stainless Steel SS 304

Coating : Epoxy Powder Coating ≥ 250 μm

Typical Applications

High Geometrical Points

Ascending Segment

Negative Slope Change

Pumping Station

Dual Function Air Valves

Combination Air Release Valve