Principle

EMCO ISA 1932 nozzles ใช้องค์ประกอบในการวัดอัตราการไหลของไอน้ำ ของเหลว และ ก๊าซ โดยใช้หลักการ Differential pressure

Construction

Design and calculation standards : EN, PED 97/23 EC, ANSI/ASME and RW Miller
Sizes : DN 50 -900 2″-36″
Pressure rating : PN 10 – 250, 150 -1500 lbs
Material : Carbon steel P235GH, P250GH, P265GH, A105N, A106 Gr. B, AISI 316, Duplex, Super Duplex, 6Mo, heat resisting steels, other materials on request
Mounting style : Flanges connection according to DIN or ANSI
Pressure taps : DN 50 and DN 80, 2” and 3”
Flange facing : Flat or raised face according to DIN 2526 or flat, raised face or ring type joint according to ANSI B 16.5
Element ratio (H/D) : 0,2, 0,3, 0,4 and 0,5 (0,4 is standard).

Technical Data

Accuracy : +/- 4-5 % (un-calibrated), +/- 0,5 % (calibrated).
Repeatability : +/- 0,2 %
Pressure loss : 40 % of measured differential pressure with ratio H/D 0,4
Limits for Reynolds No. : Re > 500
Viscosity : Up to 3000 Cp
Installation requirement : down to 5 x D up-stream and 2 x D down-stream.

Download : EN