
Measurement Of Fluid Flow By Means Of Orifice Plates, Nozzles And Venturi Tubes
出版:Japanese Standards Association

专家解读视频
Defines the procedure of measurement of the rate of the fluid flow running full in a circular conduit whose cross section diameter is 50 to 1200 mm by means of the fluid contraction devices. Contraction devices dealt with in this standard are: 1) Orifice plates; a) Corner tapping orifice, b) D and D/2 tapping orifice, c) Flange tapping orifice. 2) Nozzles; a) ISA (1) 1932 nozzle, b) Long radius nozzle. 3) Venturi tubes; a) Classical venturi tube, b) Venturi nozzle NOTE (1) ISA is the abbreviation for "International Federation of the National Standardizing Associations", the body which was successed by ISO.