Abrasion failure of ordinary valves in 3 months due to the high sediment content of the Yellow River is a key industry pain point in water conservancy projects. OUWEI's sediment-resistant ball valve features a tungsten carbide coating on the ball surface with a hardness of HRC72 for hard alloy protection; a self-cleaning flow channel with a special valve seat diversion groove is designed to automatically remove sediment accumulation; and a two-way sealing technology is adopted to maintain zero leakage even with a sediment content of 50kg/m³. After its application in the Xiaolangdi Water Control Project, the valve replacement cycle is extended from 1 year to 10 years.
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