Orifice flanges are manufactured as standard according to ASME B16.36, which means NPT flange tappings complete with plugs and jackscrews. In the case of an orifice assembly this can be completed with orifice plate, studbolts, nuts and gaskets. The flanges can be optionally executed with other possible process connections, such as SW, BW, plain-end or flanged welding nipples. This can be completed with valves, condensate pots and differential pressure transmitters.

Orifice Meterruns are fabricated in accordance with ISO 5167 requirements and several construction codes such as ASME B31.3 or Stoomwezen Rules for Pressure Vessels. Apart from flange tappings, the orifice flanges in can also be executed with corner, radius or pipe tappings. The flanges can be optionally supplied with dowel pins to ensure correct positioning of pipework up- and downstream of the orifice plate. Both orifice flanges and meterruns can be supplied in any required material complete with material certificates 3.1B or 3.2.




Materials






Design codes



Flange types



Class

Flange facing

Tapping types


Tapping sets

Process connections




• A105N / A350LF2 / A182-F5, F11, F22, F91 / C21
• A182-F304(L), A182-F316(L)/Ti, A182-F321(L)
• A182-F51 / 1.4462 / UNS S32760 (super duplex)
• Monel / Hastelloy C22, C276
• Titanium
• On request

• ASME B16.36      • ISO 5167
• AGA                       • ANSI
• BS                         • DIN

• WN
• SO
• threaded

• ANSI 150 thru 2500 # or DIN PN10 thru PN250

• RF of RTJ

• flange tappings• corner tappings
• radius tappings • pipe tappings

• single
• double

• NPT threaded      • flanged
• Socket Weld         • Butt Weld

Line size
Rating
Ends
Pipe schedule
Material
Type
Tapping
   
With studs/nuts yes No
With gaskets yes No
With orificeplate yes No
   
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Contact person
E-mail address
Address
City
Country
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Line size
Rating
Facings
Pipe schedule
Material
Ends
Tapping
Plate
   
With x-ray yes No
With hydrotest yes No
With coating yes No
With calibration yes No
   
Company name
Contact person
E-mail address
Address
City
Country
Phone
Fax
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