Standards & Guidelines

  • Control Valve sizing to "ANSI/ISA-75.01.01-2002"dated 3 July 2002 which contains sizing for miniature valves.
  • Relief Valve sizing program to "API RP 520" 7th Edition January 2002 which includes two-phase flow sizing.
  • Tank venting to "API Std 2000" 5th Edition April 1998."
  • Restriction devices - ISO Venturi, ASME Long Radius Nozzle and concentric orifice plate (thick and thin) for gas and liquid services using Miller's Handbook, 3rd edition, 1996
  • Orifice Plate thickness based on the pressure and temperature of the selected plate material using Miller's Handbook, 3rd edition, 1996.
  • ISO orifice plate calculations have been updated to ISO 5167, 2003.