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The Mahab air release valve is made of ductile iron GGG40 with internal and external electrostatic epoxy coating for corrosion and pressure resistance. It is available in nominal diameters from 25 to 300 millimeters, with pressure ratings from PN10 to PN16. The internal float is made of reinforced polyamide or stainless steel 304, ensuring precise operation in releasing trapped air. The dual or triple orifice system enables both air discharge during pipeline filling and air intake during draining. The maximum operating temperature is 80°C, and the flanged ends comply with EN 1092-2 standards.
The Mahab air release valve is designed for water transmission lines, wastewater networks, storage tanks, and pumping systems. It operates automatically without manual intervention. Hydrostatic testing is performed at 1.5 times the nominal pressure, with allowable leakage less than 0.1% of rated flow. The aerodynamic flow path minimizes pressure loss and prevents water hammer. A 250-micron powder epoxy coating extends service life to over 20 years. The 100 mm model weighs approximately 18 kg.
WEBSITE: Mahab air release valve Iran
