Compact orifice

The compact orifice Oriflow is used for flow measurements of conductive and non-conductive fluids, gases and vapours in all industrial branches.

Our subsidiary METRA Energie-Messtechnik GmbH has taken over this area. Our team will be happy to answer any questions you may have.

Application:

Applications include flow measurements (volume / Mass) for balancing (compressed air systems, heat carries, vapours, chemical products, for examples), process control and high throughput applications, redundant solutions for safety applications

Technical data
Nominal sizeDN15 to DN300 (1/2“ to 12“), bigger sizes on request
Process connectionSandwich, Flanges according to DIN or ANSI
MaterialStainless steel, Hastelloy, Tantalum, Titan, PVDF, Monel
Flow Range0.2 to 150,000 m³/h
(52.83 to 39,625808 gal/h)
Accuracyup to ±0,6%
Viscosity

-40°C up to +400°C
(-40°F up to +752°F)

Process temperatureup to PN100 (up to 320 bar / 4,641 psi on request)
Process pressurecurrent output / Foundation Fieldbus / Profibus A
Ex-protectionFlame proof or intrinsically safe

 

Special features
  • dry calibration
  • high repeatability
  • easy installation without pressure lines
Characteristics
  • highest market acceptance already over 10,000 units in operation worldwide
  • extremely rugged and stable measuring instrument
  • suitable for extreme applications
Product Variants Oriflow
Main FeaturesOptions
Nominal Size
available
(in DIN or ANSI)
Dimension /
Standard
Nominal Pressure
available
Temperature RangeMaterial availableValve BlockValve Block
new
Steam Angle
horizontal
Steam Angle
vertical
Pressure sealsothersSpecial Features
Model DDN15 – 150
1/2″ – 4″
70 mmmax. PN63
Class 600
-20° – 170°C
(-4° – 338°F)
1.4408, 1.4409XXXonly as cast version / with steam angle up to 280°C (536°F)
Model DDN200 – 1000
5″ – 40″
40 – 60 mmmax. PN63
Class 600
-20° – 170°C
(-4° – 338°F)
1.4571, 1.4404
or special
XXXXwith steam angle up to 280°C (536°F)
Model GDN4 – 15150 mmmax. PN40-20° – 170°C
(-4° – 338°F)
1.4571XXX
Model IDN15 – 150
1/2″ – 4″
25 mmPN40
Class 600
-20° – 170°C
(-4° – 338°F)
1.4571XXX
Model LDN6 – 150
1/2″ – 6″
max. PN325
Class 2500
-20° – 170°C
(-4° – 338°F)
1.4571, 1.4404
or special
XXXwith steam angle up to 280°C (536°F) / lens seal or ring joint
Model MDN6 – 125max. PN325-20° – 400°C
(-4° – 752°F)
1.4571X
Model NDN15 – 150
1/2″ – 4″
40 – 60 mmmax. PN63
Class 600
-20° – 170°C
(-4° – 338°F)
1.4571, 1.4404XXXX
Model ODN15 – 200
1/2″ – 6″
60 mmmax. PN160
Class1500
-20° – 170°C
(-4° – 338°F)
1.4571, 1.4404
or special
XXXwith steam angle up to 280°C (536°F)
Model SDN150 – 1000
2″ – 20″
max. PN100
Class 900
20° – 400°C
(-4° – 752°F)
1.4571, 1.4404
or special
XXfirst shut-off as single or double welded version
Model TDN15 – 50060 mmmax. PN40-20° – 170°C
(-4° – 338°F)
1.4571, 1.4404
or special
Xtemperature extension
Model UDN15 – 500
1″ – 20″
max. PN100
Class 900
20° – 400°C
(-4° – 752°F)
1.4571, 1.4404
or special
X
Model ZDN15 – 150
1/2″ – 4″
25 mmPN40
Class 600
-20° – 170°C
(-4° – 338°F)
1.4571, 1.4404
or special
XXX
ORIKONDN15 – 25065 mmPN40-20° – 350°C
(-4° – 662°F)
1.4571, 1.4404
  • Oil and Gas
  • Chemistry and pharmaceutical
  • Mechanical and plant engineering
  • Energy and power plants
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