It has come to our attention that some manufacturer(s) have changed the design of their auto purgers by installing a Relief Valve (RV) with the package. The owner’s manual of the component specifically lists the RV as a pre-assembled component and requires the installation of a “vent line” on this RV. This seems to be a considerable change from past designs and needs to be recognized for those facilities falling under PSM/RMP (as well as those not under PSM/RMP). Here is a breakdown of how this design change can impact a facility’s PSM/RMP program…