SHPERICAL DISC SEALING SURFACE & BLOW-OUT PROOF SEAT

SPHERICAL DISC SEALING SURFACE

1. Spherical sealing surface on Disc

provides better sealing capability.

2. Lowers the break away torque
because of less friction between the seat & disc

BLOW-OUT PROOF SEAT

1. HP Butterfly valves have a unique
seat and seat retainer design to
minimize the seat movement.

2. The seat retainer is bolted to the
body, the retainer plate holds the
seat in the seat pocket and hence
a seat blow-out is avoided.