Maximum Allowable Working Pressure 3 : The highest operating pressure allowable at any point in any component other than a pipeline during normal operation or static conditions. (RP 14C)
The Mudblogger (Oilfield, Energy and Related Photographs), Oil Field Glossary, TX, USA 2014. http://mudblogger.com/oilfield-glossary/, (Oil - Amer) {777}