Listed below are some commonly used valve manufacturing, inspection and testing standards for the petrochemical industry.  

  The chromium in the steel combines with oxygen in the atmosphere to form a thin, invisible layer of chrome-containing oxide, called the passive film. The sizes of chromium atoms and their oxid [ ... ]

Weco Unions Weco Unions also referred to as Wing Unions are pipe connectors often used in offshore industry.   They are available in threaded or butt-welded ends for pressures up to 20,000 p [ ... ]

ASME Flange Loading Calculation Theory The flange loading calculation method outlined below involves determining the effective pressure in the flange due to: External Moment. External Fo [ ... ]