Differential pressure measurement

In differential pressure measurement, different pressures act on an oil-filled, pressure difference measuring cell from two sides. The instrument converts the pressure differential into an electronic signal.

Pressure, level, density and flow of liquids, suspensions, gases and vapours can be measured using the principle of differential pressure.

The advantages 

 

  • Wide application spectrum thanks to large selection of measuring ranges and process fittings
  • Differential pressure transducers can detect differential pressures of just a few mbar
  • With an installed chemical seal, media with extreme temperatures can also be safely and reliably measured

 


Chemical Seal CSB

Chemical Seal CSS

VEGABAR 81

VEGABAR 82


Application area

Overload resistance 420 bar

The VEGADIF 65 with chemical seal CSB (both side assembly) is suitable for level, interface, density, differential pressure and flow measurement. Through the assembly of the chemical seal CSB, applications in corrosive, high viscosity and hot products can be realized.

 

Your benefit

  • High chemical resistance through high quality diaphragm materials
  •  

 

 

 

 

 

 

Measuring-range---Distance

-

Measuring-range---Pressure

-100 ... 100 bar

Process-temperature

-40 ... 400 C

Process-pressure

-100 ... 100 bar

Download
Product Catalogue
34146-EN-Chapter-Differential-pressure.p
Adobe Acrobat Document 2.4 MB

Application area

Overload resistance 420 bar

The VEGADIF 65 with chemical seal CSS (single side assemply) is suitable for level and differential pressure measurement. Through the assembly of the chemical seal CSS, applications in corrosive, high viscosity and hot products can be realized.

 

 

Your benefit

  • High chemical resistance through high quality diaphragm materials

 

 

 

 

 

 

 

Measuring-range---Distance

-

Measuring-range---Pressure

-40 ... 40 bar

Process-temperature

-40 ... 400 C

Process-pressure

-40 ... 40 bar

Download
Product Catalogue
34146-EN-Chapter-Differential-pressure.p
Adobe Acrobat Document 2.4 MB

Application area

Liquids and gases at high temperatures

The VEGABAR 81 is a pressure transmitter with chemical seal for pressure and level measurement. The chemical seal systems of VEGABAR 81 adapted to the process, ensure a reliable measurement even with highly corrosive and hot products.

 

 

Your benefit

  • Simple adaptation thanks to verious configuration options
  • Reliable measurement with temperatures up to 400 °C
  • Reliable measurement independent of foam generation or tank installations

 

 

Measuring-range---Distance

-

Measuring-range---Pressure

-1 ... 1000 bar

Process-temperature

-90 ... 400 C

Process-pressure

-1 ... 1000 bar

Download
Specification Sheet
45055-EN-VEGABAR-81-4-20-mA.pdf
Adobe Acrobat Document 346.3 KB

Application area

Liquids and gases

The VEGABAR 82 pressure transmitter can be used universally for the measurement of gases, vapours and liquids. Substances such as sand can be handled easily thanks to the abrasion-resistant ceramic measuring cell. The VEGABAR 82 offers maximum reliability. The transmitter can be used in all industries.

Your benefit

  • Low maintenance costs thanks to wear-free ceramic measuring cell
  • High plant availability through maximum overload and vacuum resistance of the ceramic measuring cell
  • Measurement down to the last drop through smallest measuring ranges with high accuracy

Measuring-range---Distance

-

Measuring-range---Pressure

-1 ... 100 bar

Process-temperature

-40 ... 150 C

Process-pressure

-1 ... 100 bar

Download
Specification Sheet
45060-EN-VEGABAR-82-4-20-mA.pdf
Adobe Acrobat Document 310.0 KB


VEGABAR 83

VEGABAR 86

VEGABAR 87

VEGADIF 65


Application area

Liquids and gases even at high pressures

The VEGABAR 83 is a pressure transmitter for pressure measurement of gases, vapours and liquids in all industries. The VEGABAR 83 offers special advantages in applications with high pressures.

 

 

 

 

Your benefit

  • Maximum dependability and safety through proven technology
  • High reliability through vacuum resistant version
  • Universal use due to welded measuring cell

 

 

 

 

Measuring-range---Distance

-

Measuring-range---Pressure

-1 ... 1000 bar

Process-temperature

-40 ... 200 C

Process-pressure

-1 ... 1000 bar

Download
Specification Sheet
45065-EN-VEGABAR-83-4-20-mA.pdf
Adobe Acrobat Document 313.2 KB

Application area

Liquids 

The VEGABAR 86 is a submersible pressure transmitter for level measurement in wells, basins and open vessels. Thanks to the flexibility through different cable and tube versions, VEGABAR 86 can be used in various applications.

 

 

 

Your benefit

  • Low maintenance costs thanks to wear-free ceramic measuring cell
  • High plant availability through maximum overload and vacuum resistance of the ceramic measuring cell
  • Self-cleaning effect through front-flush installation

 

 

Measuring-range---Distance

250 M

Measuring-range---Pressure

0 ... 25 bar

Process-temperature

-20 ... 100 C

Process-pressure

0 ... 25 bar

Download
Specification Sheet
46166-EN-VEGABAR-86-4-20-mA.pdf
Adobe Acrobat Document 333.8 KB

Application area

Liquids

The VEGABAR 87 is a pressure transmitter for pressure and level measurements of liquids and viscous products with higher temperatures in the chemical, food processing and pharmaceutical industry. With VEGABAR 87 it is possible to detect even smallest measuring ranges from 0.1 bar.

 

 

Your benefit

  • Maximum reliability even with rapidly changing process temperatures
  • High plant availability through vacuum-resistant version
  • Very good cleanability and high chemical resistance through adapted materials

Measuring-range---Distance

250 M

Measuring-range---Pressure

0 ... 25 bar

Process-temperature

-12 ... 100 C

Process-pressure

0 ... 25 bar

Download
Specification Sheet
46167-EN-VEGABAR-87-4-20-mA.pdf
Adobe Acrobat Document 342.8 KB

Application area

Overload resistance 420 bar

The differential pressure transmitter VEGADIF 65 can be used universally for the measurement of liquids, gases and vapours. Typical applications are level measurements in pressurized vessels as well as flow measurements in combination with DP flow elements. Further applications are pressure monitorings on filters as well as density and interface measurements.

Your benefit

  • High reliability through integrated overload diaphragm
  • Measurement of very low differential pressures through high precision measured value detection
  • Versatile use through a variety of measuring ranges and process fittings

Measuring-range---Distance

-

Measuring-range---Pressure

1 ... 40 bar

Process-temperature

-40 ... 400 C

Process-pressure

-1 ... 420 bar

Download
Specification Sheet
34758-EN-VEGADIF-65-4-20-mA.pdf
Adobe Acrobat Document 545.8 KB