Indus Industrial Group supplies heavy-duty Triple-Function Combination Kinetic Air Release Valves engineered across nominal inlet diameters from DN50 to DN300 in pressure classes PN16, PN25, and PN40 according to EN 1074-4 and AWWA C512 standards. Combining large-orifice bulk air exhaust during pipeline filling, large-orifice high-volume air intake during pipeline draining/rupture (preventing vacuum collapse), and small-orifice continuous pressurized air release during normal pumping operations, these valves are essential for pipeline surge protection. Cast from high-tensile ductile iron (EN-GJS-500-7) with solid stainless steel or aerodynamic composite floats and non-slam throttling discs, they safeguard water mains across Iraq.
| Pricing Verification | Commercial Quote on Demand (RFQ) |
| Governing Standards | EN 1074-4 / AWWA C512 / DIN 3230 / ISO 5208 |
| Nominal Inlet Diameters | DN50, DN80, DN100, DN150, DN200, DN250, DN300 |
| Pressure Ratings | PN16, PN25, PN40 (High-Pressure Main Rating) |
| Body & Cover Material | Ductile Iron EN-GJS-500-7 (min 420 MPa tensile strength) |
| Internal Floats & Mechanism | Solid Stainless Steel AISI 316 / Anti-Deformation Polypropylene |
| Seat & Orifice Seals | EPDM / NBR Drinking Water Approved Elastomer (WRAS certified) |
| Flange Drillings | EN 1092-2 / ISO 7005-2 (PN16 / PN25 / PN40) |
| Discharge Hood | Ductile Iron Cowl with Stainless Steel Insect / Dust Mesh Screen |
| Minimum Sealing Pressure | 0.2 Bar (Low-pressure sealing capability) |
| Operating Temperature | -10°C to +55°C (Iraq desert pipeline certified) |
| Sector & Division | Water & Wastewater (Div 01) |
| Parent Category | Kinetic Air Valves |
High points on municipal potable water transmission mains, raw river intake booster station discharge lines, long-distance inter-city water transfer corridors, pipeline bridge crossing peaks, and deep well pump heads across Baghdad, Erbil, Basra, Anbar, and Nineveh.
Triple-Function Combination Kinetic Air Release Valves represent the ultimate hydraulic protection device against vacuum collapse, air pockets, and destructive water hammer shocks in pressurized transmission pipelines across Iraq. Governed by EN 1074-4, AWWA C512, and DIN 3230 standards, these valves perform three critical operational duties within a single compact body: discharging massive volumes of air at sonic velocities during rapid pipeline filling, admitting immense volumes of atmospheric air when pumps trip or bursts occur to prevent destructive vacuum column separation, and continuously expelling micro-bubbles of accumulated air released from solution while the pipeline operates under full working pressure (up to 40 Bar).
The aerodynamic internal chamber design features precision-molded solid stainless steel (AISI 316) or high-density polypropylene floats that will not deform, waterlog, or prematurely shut off under high-velocity air streams before all air is evacuated. An engineered dynamic sealing orifice ensures drop-tight seating down to ultra-low working pressures (0.2 Bar), preventing nuisance leakage during low-pressure line filling. Coated with electrostatically applied blue fusion-bonded epoxy (min 250 µm, WRAS certified), the valve is fully immune to external atmospheric corrosion and internal river water scaling.
In Iraqi cross-country pipelines running through desert topography with extreme summer temperatures reaching +55°C, air pockets collect at pipeline high points, choking hydraulic flow and reducing pumping capacity by up to 30%. Installing Indus triple-function kinetic air valves restores full flow capacity and dampens catastrophic surge pressures. Staged at our Erbil Heavy Yard, Baghdad Central Depot, and Basra Port Hub, Indus supplies complete air valve assemblies including companion isolating gate valves and stainless steel insect screen hoods.
When pumps trip during sudden utility power cuts, water continues rushing forward due to momentum, creating a severe negative pressure (vacuum) wave. The large intake orifice of the Indus kinetic air valve opens instantly under negative pressure, drawing in massive volumes of air to break the vacuum and prevent thin-walled pipes from buckling inward.
In poorly designed air valves, high-velocity air rushing out during pipe filling lifts the float prematurely, trapping massive air pockets inside the line. Indus air valves feature aerodynamic internal chamber geometries and balanced float dynamics that keep the large orifice wide open until 100% of the air has evacuated and liquid water physically enters the chamber.
Yes. Indus supplies complete air valve station packages comprising the air release valve, an isolating resilient seated gate valve (or flanged ball valve), dismantling joints, and stainless steel fasteners for turnkey chamber installation.
