Principle of operation:
W&T Triple offset butterfly vave povides a bl-dlrectionant bubble tight shut -off .This geometry ensures that the disc seal contacts the body seat only at the final shut-off position wthout rubbing or galling. providing a torque generated resilislent seal with sufficent "wedging" to ensures a uniform seal contact.
Produkt - Details
The triple offset geometry
●offset1 the shaft is offset behind the seat axis to allow complete sealing contact around entire seat
●offset2 the shaft centerline is offtst from he pipe and valve which provides interference free opening and closing of the valve.
●offset3 the seat cone axis is offset from the shaft centerline to eliminate friction during closing and openning and to achieve Unifom compressvse sealing around the entire seat.