. In the event of failure, these valves fail opened.4" Butterfly Valve, Actuated/Clamp Ends/Norm. Open, 316-Silicone Designed to create a leak-proof connection to clamp fittings when combined with a gasket and clamp.
. These valves are assembled with an actuator using air to open. Designed to create a leak-proof connection to clamp fitting when combined with a gasket and clamp.