Indus Industrial Group supplies heavy-duty Sewage and Wastewater Kinetic Air Release Valves engineered across nominal inlet diameters from DN50 to DN200 in pressure classes PN10 and PN16 according to EN 1074-4 standards. Designed with a tall conical body that maintains an air gap between the wastewater surface and the upper sealing mechanism, these valves prevent sewage solids, fats, and grease from clogging the discharge orifice. Fabricated from ductile iron (EN-GJS-500-7) with heavy internal epoxy/HAC coating, solid stainless steel (AISI 316) floats, and bottom flushing ball valves, they provide reliable surge and air venting in pumped sewage force mains across Iraq.
| Pricing Verification | Commercial Quote on Demand (RFQ) |
| Governing Standards | EN 1074-4 / EN 12050 / ISO 5208 (Wastewater Classification) |
| Nominal Inlet Diameters | DN50, DN80, DN100, DN150, DN200 |
| Pressure Classes | PN10, PN16 (10 Bar / 16 Bar Working Pressure) |
| Body Construction | Ductile Iron EN-GJS-500-7 / Fabricated Stainless Steel 316 |
| Body Geometry | Elongated Cylindrical / Conical Non-Clog Profile |
| Internal Float & Linkage | Stainless Steel AISI 316 / AISI 316L (High acid resistance) |
| Flushing Accessories | Integrated 1" Stainless Steel Flushing Ball Valve & Hose Coupler |
| Coating Specification | Chemical-Resistant Fusion-Bonded Epoxy (≥300 µm) / Ebonite |
| Flange Drillings | EN 1092-2 / ISO 7005-2 PN10 / PN16 |
| Chemical Resistance | pH 2.0 to pH 12.0 (Immune to septic H2S gas and raw sewage) |
| Sector & Division | Water & Wastewater (Div 01) |
| Parent Category | Kinetic Air Valves |
Municipal raw sewage pumping station discharge force mains, WWTP intake piping, deep sewer lift station headers, industrial effluent pumping mains, and sludge transfer pipelines across Baghdad, Erbil, Basra, Najaf, Karbala, and Nasiriyah.
Sewage and Wastewater Kinetic Air Release Valves provide the vital engineering capability for maintaining hydraulic capacity and surge protection in pressurized municipal sanitary sewage force mains and wastewater treatment plants across Iraq. Conventional drinking water air valves fail rapidly in wastewater service because floating grease, suspended rags, and fecal solids clog the small mechanical orifices, resulting in continuous sewage spewing or total valve seizure. Indus wastewater air valves overcome this challenge through a specialized elongated conical body geometry that establishes an air cushion, ensuring the liquid sewage level never reaches the upper sealing orifice during normal operation.
The internal mechanical assembly consists entirely of corrosion-proof stainless steel (AISI 316 / 316L) conical floats and linkage mechanisms resistant to biogenic sulfuric acid (H2S) and methane gas. The valve base incorporates a steep conical slope that directs settling solids back down into the main pipeline flow, preventing sediment accumulation inside the valve chamber. A built-in stainless steel bottom drain and flushing valve assembly allows operators to perform back-flushing maintenance easily without disassembling the valve.
Coated inside and out with heavy fusion-bonded epoxy (min 300 µm) or specialized chemical-resistant polyurethane, these valves endure aggressive ambient conditions up to +55°C and severe septic sewage chemistry. Stocked at our Erbil Heavy Yard, Baghdad Central Depot, and Basra Port Hub, Indus supplies wastewater air valves with complete EN 10204 3.1 inspection certification and technical datasheets for municipal sanitation projects.
The elongated conical body creates a permanent air gap between the wastewater liquid surface and the top sealing orifice. As air accumulates, the sewage level drops and the float opens the orifice. Once air exhausts, the sewage rises slightly to close the float, but the liquid level never reaches the upper orifice assembly, completely preventing fouling from grease and solids.
Indus wastewater air valves are equipped with an integrated stainless steel flushing assembly. Technicians connect a standard clean water hose to the top port while opening the bottom drain valve, flushing out any accumulated scum in minutes without dismantling the valve or exposing workers to raw sewage.
Yes. The entire internal float, lever mechanism, and orifice nozzle are fabricated from marine-grade stainless steel AISI 316, and the ductile iron body is coated with heavy-duty chemical-resistant epoxy (min 300 µm), providing 100% resistance to biogenic sulfuric acid.
