THE NON-ELECTRICAL AUTO-PURGER (NEAP) IS A SIMPLIFIED VERSION OF THE POPULAR HANSEN AUTO-PURGER IT IS DESIGNED TO REMOVE NON-CONDENSIBLE GASES, MOSTLY AIR, FORM AN AMMONIA refrigeration SYSTEM, RESULTING IN LOWER ENERGY COSTS FOR THE SYSTEM. THE NEAP FEATURES WELDED-PIPE, ALL STEEL CONSTRUCTION AND COMES PREASSEMBLED AND TESTED, UNLIKE THE ARMSTRONG PURGER WHICH IS SHIPPED AS UNASSEMBLED COMPONENTS AND PIPES. THE SIMPLE, HEAVY-DUTY DESIGN MAKES THE NEAP ESPECIALLY SUITED FOR INDUSTRIAL REFRIGERATION SYSTEMS AND DOES NOT REQUIRE SOPHISTICATED TRAINING FOR THE OPERATORS.