Flow nozzles are available in three basic designs:

  • ISA 1932 nozzle
  • Long radius nozzle
  • ASME throat tap nozzle  

Each design is slightly different and is covered by ISO5167:2003, with the exception of the ASME throat tap nozzle. The ASME nozzle can also be supplied in a pipe section to meet the requirements of ASME Performance Test Code 6 (PTC-6) for steam turbine testing.