Sizes:  as per customer specification

Ratings: ASME Class 1700-2700-4500 and interpolated special classes.

Connections: S.W. and B.W.

Materials: Forged Carbon Steel and alloy steel or special High Alloys (on request).

Operating: Manual or Actuated.

PBR applications:
used when a tight seal is needed after a blow-off operation

PBR features:
Pressure Seal Bonnet
non-rotating stem
operates with very high Δ pressure
any actuator can be easy assembled