Dosch - Model DU 600 (ISA 1932) -Nozzle
ISA 1932 nozzles are used as flow elements for flow measurement of aggressive and non-aggressive gases, steam and liquids.
ISA 1932 nozzles consist of a rounded inlet section and a cylindrical throat. The pressure tappings are either designed as single bore taps in the carrier ring or as a ring chamber.
Compared to orifice plates, nozzles are recommended for applications which require low pressure losses. At similar flow values, nozzles generates less differential pressure which results in lower permanent pressure loss. The rounded inlet profile is less susceptible to erosion in comparison to the sharp edge of an orifice plate. Hence, nozzles achieve higher service life times.
Ranges from 0,8% -1,2% of the discharge coefficient C, depending on the application.
The pressure loss depends on the diameter ratio p (d/D) and ranges from 30 - 80% of the differential pressure.
DN 50 to DN 500 / 2" to 20" (if requested other sizes are possible)
PN 6 to PN 400 /150# to 2500# (ASME), ring chamber design up to PN 100 / 600#