Primary flow elements

For flow measurement in combination with a DP flow transmitter

  • Various designs of orifice plates, averaging pitot tubes and cone meters
  • Standard portfolio for the most common DP flowmeter designs
  • Testing acc. to ASME and PED, optional wet calibration with documentation
Product name
Primary flow element type
Showing 12 of 13 products

OPTIBAR MR 4300

Orifice meter run assembly with corner taps and annular chambers

  • Completely pre-assembled with orifice plate, piping, inlet/outlet sections, process connections
  • Size: DN15…100 / ½…4"; up to PN100 / ASME Cl 1500
  • Temperature: max. +400°C / +752°F
  • Material: 1.4404 / 316L

OPTIBAR OP 1100

Orifice plate with RF sealing face

  • For mounting between measuring flanges (ASME 16.36, 16.5, 16.47 A)
  • Size: ½…24"; up to ASME Cl 2500
  • Temperature: up to +450°C / +842°F
  • Material: 1.4404 / 316L

OPTIBAR OP 1110

Orifice plate with RTJ sealing face

  • For mounting between measuring flanges (ASME 16.36, 16.5)
  • Size: 1…24"; up to ASME Cl 2500
  • Temperature: up to +450°C / +842°F
  • Material: 1.4404 / 316L

OPTIBAR OP 3100

Orifice plate with flat sealing face and corner taps

  • Separate type, with carrier ring and optional shut-off valve
  • Size: DN50…600; up to PN100
  • Temperature: up to +400°C / +752°F
  • Material: 1.4404 / 316L

OPTIBAR OP 3200

Orifice plate with flat sealing face and corner taps

  • Compact type, with carrier ring, flange plate and optional manifold
  • Size: DN50…600; up to PN100
  • Temperature: up to +400°C / +752°F
  • Material: 1.4404 / 316L

OPTIBAR OP 4100

Orifice plate with annular chamber and corner taps

  • Separate type, for installation between standard flanges (EN 1092-1), optional shut-off valves
  • Size: DN50…600; up to PN100
  • Temperature: up to +400°C / +752°F
  • Material: 1.4404 / 316L

OPTIBAR OP 5100

Orifice assembly with measuring flanges (ASME 16.36)

  • With RF sealing face and flange taps
  • Size: 1…24"; up to ASME Cl 2500
  • Temperature: up to +400°C / +752°F
  • Material: 1.4404 / 316L

OPTIBAR OP 5110

Orifice assembly with measuring flanges (ASME 16.36)

  • With RTJ sealing face and flange taps
  • Size: 1…24"; up to ASME Cl 2500
  • Temperature: up to +400°C / +752°F
  • Material: 1.4404 / 316L

OPTIBAR PT 2000

Averaging pitot tube with multiple impact-sensing ports

  • Low pressure loss design; from basic to engineered solutions
  • Cryogenic to high temperatures possible (-200…+1000°C / -328…1832°F); max. 160 bar / 2320.1 psi
  • For line sizes from DN50…2000 / 2…80" (larger on request)
  • Material: 1.4404 / 316L

Flow nozzle

Engineered primary element for DP flow measurement of high velocity, non-viscous or erosive fluids

  • ISA 1932, long radius and Venturi nozzles
  • Standards: ISO 5167, ASME MFC-3M or ASME PTC 6
  • Only short inlet and outlet runs required

Venturi tube

Engineered primary element for DP flow measurement of liquids, gases and steam with the lowest residual pressure loss

  • Machined or welded design (internally machined) according to EN ISO 5167, ASME MFC3
  • Lowest residual pressure loss of all DP elements
  • Only short inlet/outlet runs required
  • From basic to special wet gas applications and high pressure conditions

Cone meter

Engineered primary element for DP flow measurement in applications with limited installation space

  • Meter run with integrated cone and single taps according to EN ISO 5167
  • Rugged solution for difficult media and harsh operating conditions, e.g. in oil and gas applications
  • Designed for large diameters (up to 24″), demanding flow profiles, high pressures and temperatures
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