Butterfly valves are relatively inexpensive and sanitary valves, mainly suitable for on-off operation.
The design of the butterfly valve features a disk that pivots on a center axis and is sealed with a replaceable valve seat of an appropriate electrometric material.
This design allows for the complete cleaning of all product contact surfaces in a CIP operation when fully opened. Valves of this type are not recommended for incre¬mental flow control, because they generate high shear in the product.
Butterfly valves can be specified with lockout features.