A wafer or lugged pattern, rubber seated butterfly valve. The seat is vulcanised to the valve body, and incorporates a modified cosine curve seat profile. This provides lower torque, reduced friction and improved flow characteristics, especially at the partially open position.The vulcanised seat also ensures improved performance under high velocity and vacuum conditions.
A variation of model 731/732X with vulcanized rubber lining on the body for use in high pressure, high velocity and industrial vacuum applications.
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