ISA 1932 Nozzle with Carrier Rings Type DRS

Principle

EMCO ISA 1932 nozzles ใช้องค์ประกอบในการวัดอัตราการไหลของไอน้ำ ของเหลว และ ก๊าซ โดยใช้หลักการ Differential pressure

Construction

Design Standards : ISO 5167-3 and DIN 19215
Sizes : DN 50 – 1000 according to DIN 2402
Beta (d/D) : 0.3 < < 0.8
Pressure rating : PN 10 – 400, 150 – 2500 lbs
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 : 12 mm, 21.3 mm, 24 mm, 26.9mm, 3/8″, 1/2″ BSP , 1/2″ NPT
Tap lengths : 150 mm, others on request.
Tappings : with annular ring to equalise the pressure.
Tap location : At least 45° apart. For steam flow in a horizontal pipe : 180° To be stated with order.

Technical Data

Accuracy : 0,8 % for b < 0,6, (2b – 0,4) % for b > 0,6 (according to ISO 5167-3)
Pressure loss : Depending on b, for b equal to 0,6 : ca. 60 % of the differential pressure measured
Limits for Re. No. : 2 x 10 4 < ReD < 1 x 10 7 according to ISO 5167-3
Accessories : Shut off valves and condensing chambers for steam flow.
Dimensions

DN	Ø Inner pipe	Upstream length ISO 5167	Total length ISO 5167	Upstream length DIN 19215	Total length DIN 19215
50	45 – 57	115	230	150	250
65	58 – 72	145	290	180	300
80	73 – 90	180	360	230	350
100	91 – 112	225	450	280	400
125	113 – 137	275	550	350	500
150	138 – 162	325	650	400	600
(175)	163- 187	375	750	470	700
200	188 – 225	450	900	570	800
250	226 – 275	550	1100	690	1000
300	276 – 325	650	1300	820	1200
350	326 – 375	750	1500	950	1400
400	376 – 425	850	1700	1050	1500
450	426 – 475	950	1900	1200	1700
500	476 – 550	1100	2200	1370	2000
600	551 – 650	1300	2600	1500	2000
700	651 – 750	1500	3000	1500	2000
800	751 – 850	1700	3400	1500	2000
900	851 – 950	1900	3800	1500	2000
1000	951 – 1100	2200	4400	1500	2000

All dimensions in mm

Marking : Main tube marked with flow direction. Taps with “+” and “-“. Other data on attached nameplate.

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