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Orifice Plate MEF/5

Single Pressure Tapping Series for Insertion between Compact FlangesMEF/5

orifice mef5 compact flanges

The EMCO Single Pressure Tapping Series MEF/5 orifice plates for Insertion between Compact Flanges are used as primary elements in flow measurement according to the differential pressure principle. The tapping arrangement is corner tapping.

Design and calculation standards :

  • ISO 5167-2 2003, ASME MFC-3M, NORSOK L-005, Shell Flow Meter Engineering Handbook
  • Sizes : DN 50 - 600, 2" - 24"
  • β (d/D) : 0,1 < β < 0,75
  • Pressure rating : 300 - 2500 lbs
  • Orifice plate : Integrated with holder
  • Plate thickness : 3 – 6 mm
  • Vent or drain hole : On request
  • Material : AISI 316, 22 Cr Duplex, 25 Cr Duplex, 6Mo, other materials on request.
  • Mounting style : Between flanges with IX grooves according to NORSOK L-005
  • Orifice plate : Square edge concentric, square edge eccentric, conical, 1/4 circle, segment.
  • The plate is bevelled on the down stream side except for 1/4 circle orifice plate.
  • Pressure taps : Threaded: 1⁄2" NPT int. (standard) or 1⁄2" BSP. Flanged: 1⁄2" and 3⁄4", 300, 600, 1500 and 2500 lbs IX or RTJ.
  • Tap location : At least 15° apart, depending on size and pressure rating.
  • Marking : The orifice plate is marked with "+" and "-" and flow direction.
  • Handle : With name plate in AISI 316 with the following inscription :TAG no., serial no., pressure rating, inner pipe diameter, bore, material.

orifice mef5 ga

Technical Data

  • Accuracy : +/- 0,5 % for β < 0,6 and equal to β for β values above 0,6
  • Pressure loss : Depending on β, for β equal to 0,6 : ca. 60 % of the differential pressure measured
  • Limits for Reynolds No : Re(D) > 5000 for 0,1< β < 0,56 and Re(D) > 16000 x β 2 for β > 0,56 according to ISO 5167-2 2003 2000 < Re < 108 according to ASME MFC-3M

Dimensions

Size Pressure rating lbs
    300 600 900 1500 2500
2” Width (w) 40 40 40 40 40
  OD Ø132 Ø136 Ø136 Ø136 Ø147
3” Width (w) 40 40 40 40 40
  OD Ø161 Ø161 Ø161 Ø180 Ø209
4” Width (w) 40 40 40 40 40
  OD Ø186 Ø203 Ø203 Ø224 Ø248
6” Width (w) 50 50 50 50 50
  OD Ø240 Ø258 Ø263 Ø307 Ø322
8” Width (w) 50 50 50 50 50
  OD Ø306 Ø312 Ø330 Ø365 Ø408
10” Width (w) 50 50 50 50 50
  OD Ø361 Ø382 Ø397 Ø453 Ø485
12” Width (w) 60 60 60 60 60
  OD Ø415 Ø450 Ø462 Ø508 Ø564
14” Width (w) 60 60 60 60 60
  OD Ø450 Ø482 Ø497 Ø558 Ø618
16” Width (w) 60 60 60 60 60
  OD Ø519 Ø547 Ø567 Ø626 Ø718
18” Width (w) 70 70 70 70 70
  OD Ø567 Ø614 Ø633 Ø704 Ø780
20” Width (w) 70 70 70 70 70
  OD Ø631 Ø664 Ø700 Ø778 Ø849
24” Width (w) 70 70 70 70 70
  OD Ø750 Ø785 Ø830 Ø933 Ø1039

Works with:-

Differential pressure transmitters:-IDP10; IDP15; IDP25; IDP31; IDP50
And all our Absolute Pressure and Gauge Pressure transmitters, Temperature sensors and mass flow computers.
MultiVariable Transmitters :- IMV25, IMV30

Download Manual (Not Available)

If you require further information on this product or would like a quotation, please contact dp-flow on:

email: sales@dp-flow.co.uk
sales +44(0)1608 544222

Supplied by DP-Flow