What're butterfly valves?
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.

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