Sanitary Butterfly ValveStainless Sanitary Clamp Butterfly Valve These sanitary butterfly valves are made entirely from 304 stainless steel (including the handle) and are suitable for pressures up to 50psi. These tri clover tri clamp sanitary wafer style stainless butterfly valves offers excellent performance at an affordable price. Stainless steel butterfly valves are ideal for applications where there is limited clearance (such as underneath fermenters). While stainless