Leakage butterfly valve BL

Used as an economical shut-off device for separation of incompatible media in CIP applications

-    Installation in horizontal pipelines without height difference

-    All other constructional details are the same as with the butterfly valve 

-    Nominal diameters DN 25 to DN 150

-    2-disk concept

•     both disks are switched by a common device and a single actuator

-    Safety chamber between the disks is equipped with 2 pneumatic flushing valves for complete drainage of the leakage chamber

-    Function: leakage butterfly valve NC in closed position, flushing valves NO in open position

•     With activation of air pressure, first the flushing valves close, then the leakage butterfly valve goes into open position

-    Seal material EPDM / FDA 21 CFR Part 177.2600 Optionally HNBR, FKM, VMQ

-    Actuator maintenance-free, designed to 1,000,000 cycles