HFaF series butterfly valve is an industrial product specially developed for the powder and granular materials developed by Hong Valve Automatic Control Valve. The valve body is made of lightweight high-pressure cast aluminum alloy. The disc is lined with steel core wear-resistant polymer material, and the soft tightness formed with the wear-resistant rubber sealing ring makes it suitable for various powder and granular materials. Especially for materials with abrasive walls. In powder and granular material handling systems that require gravity blanking or pneumatic conveying, HFaF butterfly valves are often installed in hoppers, silos, screw feeder outlets, and delivery lines.

The HFaF flanged butterfly valve has a two-month flange face, while the HFaF single-flange butterfly valve is fitted with an extended connecting ring for the soft casing. A drive handle or cylinder drive kit is available as an option, depending on the application. The industrial design and the use of special composite materials make the HFaF butterfly valve a compact and lightweight fabric, wear-resistant butterfly, sealed life, easy installation and maintenance, and a cost-effective powder valve.