7136 / 8136 series is a pressure relief valve for atmospheric or atmospheric discharge, which can avoid damage to the storage tank due to overpressure or negative pressure, and can greatly reduce the evaporation loss caused by "breathing" of the storage tank.

Specification 2 "~ 12" (DN50 ~ DN300)

Positive pressure setting 0.2 ~ 103.4kpa

Design and inspection standard api2000

Flange standards: ANSI B16.5, en1092, JIS, Hg / t20592 ~ 20615, GB / t9113, etc