Classical Venturi Tube as Cast with Weld end or Flange Connection

Classical venturi tubes are used as primary elements in flow measurement of steam, liquid and gas according to the differential pressure principle.

Design standards :

• ISO 5167-4 and ASME MFC-3M
• Sizes : DN 100 - 800 according to ISO 5167
• Bore/diameter (β) : 0,3 ≤ β ≤ 0,75
• Pressure rating : PN 10 - 640, 150 - 2500 lbs, ISO PN 20 –420
• Material : Carbon steel, AISI 316, others on request
• Mounting style : Weld ends according to DIN 2559 or ANSI B16.25. Flanges acc. to DIN or ANSI B16.5 standards or Clamp connections like Grayloc
• Pressure taps : Weld ends Ø 21.3 mm, 26.9 mm, thread connection 3/8", 1/2" BSP, 1/2" NPT
• Tappings : Single pressure tappings or 4x2 tappings each arranged with an external annular ring to equalise the pressure
• Outlet cone : 7 - 15°

Technical Data

• Accuracy : 0,7 % (according to ISO 5167-4)
• Pressure loss : Depending on outlet cone between 10 - 15 % of the differential pressure measured
• Limits for Re. No. : 2 x 10 5 < ReD < 2 x 10 6
• Accessories : Shut-off valves and condensing chambers for steam flow.

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

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