Uni-directional flow and vented ball
PBM’s CN Series of full port ANSI flanged ball valves are specifically designed for cryogenic applications. PBM cryogenic valves have a unique design that provides superior performance through cooling and heating cycles. Valves meet or exceed leakage performance per MSS SP-134. Optimally oriented with the stem 90° from the horizontal plane, but are capable of operating with the stem oriented as low as 20° above the plane if necessary.