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WALL THICKNESS, AND THE LUBRICITY OF NUT LUBRICANTS CAN RESULT IN AN IMPROPERLY ASSEMBLED TUBE FITTING CONNECTION. -Two ferrule A-LOK ® -Single ferrule CPI -ANSI/ASME B1.20.1 compression port compression port Internal pipe threads -VacuSeal face -UltraSeal face -ANSI/ASME B1.20.1 seal port seal port External pipe threads Parker Hannifin Corporation Instrumentation Valve Division Jacksonville, Alabama...