Social Key - Sanitary Thread Butterfly Valves with Pull Handle - Adamant Valves http://social-key.com/story.php?title=sanitary-thread-butterfly-valves-with-pull-handle-adamant-valves AV-1MC series is a manual type sanitary butterfly valve with tri-clamp / tri-clamp ends, which is widely used in process piping systems for isolation and control. AV-1MC butterfly valve operates manually. Thu, 05 Jan 2017 23:52:22 CST en