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EMCO ISA 1932 Nozzle, Type DES

Principle: DES is designed with single pressure tapping, in an all welded construction.
Construction with carrier ring also available, ask for ISA 1932 Nozzle type DRS

Images & drawings

EMCO ISA 1932 nozzle with condensing chambers
for steam flow measurement in a horizontal or vertical pipe line

Dimensions

For dimensions of inner pipe diameter and straight pipe length requirements, click the product sheet at the top of the page.

Construction
Design and calculation standards
ISO 5167-3
Sizes
DN 50 - DN 500
Pressure rating
PN 10 - 640, 150 - 2500 lbs
β (d/D)
preferred range 0,3 < β < 0,8
Material
Carbon steel P250GH, AISI 316, 16Mo3, 13CrMo4-5, 10CrMo9-10, WB 36, X20CrMoV121, P91, P92, other materials on request
Mounting style
Weld ends according to DIN 2559 or ANSI B16.25
Pressure taps
Ø 21.3 mm, 24 mm, 26.9mm, 3/8", 1/2" BSP, 1/2" NPT
Tappings
Single pressure tappings or annular ring (Type DRS)
Technical Data
Accuracy
0,8 % for β < 0,6, (2β - 0,4) % for β > 0,6 (according to ISO 5167-3)
Pressure loss
Depending on β, for β equal to 0,6 : ca. 60 % of the differential pressure measured
Limits for Reynolds No
2*10^4 < ReD < 1*10^7 according to ISO 5167-3
Accessories
shut-off valves
Condensing chamber for steam flow