O-180/O-780

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Flow Measurement
Differential pressure Flowmeters
ORIFLOMETER

O-180/780 is a series of Orifice flowmeter for liquids and gases. An orifice plate is integrated in the measuring tube and the bypassed flow is indicated by a small sized glass tube flowmeter.
The are in one piece and no additional bypass piping etc. are needed. The flow measurement in large size lines can be conducted economically. Any flow directions (horizontal and vertical) are acceptable and changing in field is also possible. There process connections of flanges, wafers and threads are available to choose.
O-180 is the indication only whereas O-780 is provided with alarm contact additionally

Catalogs and Brochures

*Specifications are subject to change without prior notice.

Major Applications

  • Air conditioning lines (water and air)
  • Water treatment lines
  • Other utility lines

Specifications

Measuring medium Liquids (up to 3mPa·s viscosity), Gases
(Not suitable for opaque liquids, slurries and steam)
Nominal diameter 10A to 500A
Flow range Liquids (in case of density: 1.0g/cm³ and viscosity: 1.0mPa·s)
 Max. 170 to 2700 m³/h (Size: 500mm, at DP=50kPa)
 Min. 0.25 to 0.5 m³/h (Size: 10mm, at DP=10kPa)

Gases (in case of temperature: 0℃ and pressure: 1atm)
 Max. 2800 to 44000m³/h (nor) (Size: 500mm, at DP=20kPa)
 Min. 3.5 to 10m³/h (nor) (Size: 10mm, at DP= 5kPa)
Fluid temperature Max. 120°C
Fluid pressure 1.0 MPa max.
Process connection
Screw connection：
Rc and NPT
Size availability:10 mm to 100 mm
(10 mm to 50 mm for PVC, 10 mm to 40 mm for HT-PVC versions)
Flange connection：
JIS10KFF/RF, ANSI/JPI CLASS 150, and others
Size availability: More than 10 mm
Wafer connection：
JIS10K, ANSI/JPI CLASS 150, and others
Size availability: More than 10 mm
Accuracy ±3% F.S.

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