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VEGABAR 81

Pressure transmitter with chemical seal

With chemical seal, for high temperatures


Application area

Reliable measurement of highly corrosive and hot media. Can be combined with any other sensor of VEGABAR Series 80 for electronic differential pressure measurement.
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. The simple connection of VEGABAR series 80 sensors as electronic differential pressure opens new possibilities for the measurement of differential pressures.

Your benefit

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

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Application
Technical specifications
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Pressure transmitter with chemical seal for hot and chemically aggressive media

The pressure transmitter VEGABAR 81 with chemical seal system demonstrates its capability especially in high temperatures and aggressive media. A wide range of diaphragm materials and coatings make this pressure transmitter an essential instrument across many sectors, particularly in  the chemical and petrochemical industries. 
The pressure transmitter with chemical seal delivers reliable measurement data for feedback control systems or protective equipment, e.g. for
  • continuous monitoring of process pressure in reactors 
  • exhaust pressure of flue gas, e.g. in waste incineration 
  • pipeline pressure in dairies 
  • steam pressure control in steam drums 
  • pressure monitoring in LNG tanks

Other applications

Ammonia reactor

Pressure measurement at the inlet of the ammonia reactor

Pressure measurement at the inlet of the ammonia reactor

To the application

Distillation column

Level and pressure measurement in the distillation of primary products

Level and pressure measurement in the distillation of primary products

To the application

Gas separators (scrubbers)

Level and pressure measurement in the gas separator

Level and pressure measurement in the gas separator

To the application

Reaction vessel

Level and pressure measurement and point level detection in multi-product and multi-line production facilities

Level and pressure measurement and point level detection in multi-product and multi-line production facilities

To the application
Technical specifications
Measuring range - Distance
  • - [Meter - Foot]
Measuring range - Pressure
  • -1 ... 1000 bar [Bar - kPa - psi]
Process temperature
  • -90 ... 400 °C [°C - °F]
Process pressure
  • -1 ... 1000 bar [Bar - kPa - psi]
Accuracy
  • 0.2 %
  • 0.1 %
Materials, wetted parts
  • Alloy C22 (2.4602)
  • Alloy 400 (2.4360)
  • Tantalum
  • Alloy C276 (2.4819)
  • Duplex (1.4462)
  • Titanium Grade 2 (3.7035)
  • 1.4435
  • 316/316L
  • Titanium Grade 7 (3.7235)
Threaded connection
  • ≥ G½, ≥ ½ NPT
Flange connection
  • ≥ DN25, ≥ 1"
Hygenic fittings
  • Clamp ≥ 1" - DIN32676, ISO2852
  • Slotted nut ≥ 1½", ≥ DN40 - DIN 11851
  • hygienic fitting with tension flange DN32
  • hygienic fitting F40 with compression nut
  • Hygienice flange connection ≥ DN50 DIN11864-2
  • Hygienic fittings ≥ DN40 - DIN11864-1-A
Seal material
  • no media contact
Housing material
  • Plastic
  • Aluminium
  • Stainless steel (precision casting)
  • Stainless steel (electropolished)
Protection rating
  • IP66/IP68 (0,2 bar)
  • IP66/IP67
  • IP66/IP68 (1 bar)
  • IP66/IP68 (25 bar)
  • IP69K
Output
  • Profibus PA
  • Foundation Fieldbus
  • 4 … 20 mA
  • Two-wire: 4 … 20 mA/HART
  • Modbus
  • Secondary electronics for electronic differential pressure
Ambient temperature
  • -40 ... 80 °C
Approvals
Scope
  • ATEX / Europe
  • CSA / Canada
  • FM / USA
  • EAC (GOST) / Belarus
  • EAC (GOST) / Kazakhstan
  • EAC (GOST) / Russia
  • IEC / worldwide
  • NEPSI / China
  • UKR Sepro / Ukraine
  • INMETRO / Brazil
  • CCOE / India
  • CSA / USA and Canada
Explosion protection
  • Intrinsic safety "i"
  • Flameproof enclosure "d"
  • Dust ignition protection "t"
Foodstuffs/Pharma
  • FDA
  • EG1935/2004
Ship approval
  • ABS
  • BV
  • CCS
  • DNV
  • LR
  • RINA
Overfill protection
  • WHG
  • VLAREM II
SIL qualification
  • SIL2
Display & adjustment
Adjustment
  • PLICSCOM
  • PC, PACTware and DTM
  • HART-Communicator
  • Software (e. g. AMS™, PDM)
Indication
  • Display/adjustment module PLICSCOM
  • VEGADIS 81
  • VEGADIS 82

Drawing generator

Generate 2D and 3D drawings for your specific configuration.

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Product catalog

Process pressure

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    • ES
    • FR
    • IT
    • NL
    • PL
    • PT
    • TR
    • ZH
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Product information

VEGABAR 81, 82, 83

    • EN
    • US
    • DE
    • ES
    • FR
    • IT
    • NL
    • PT
    • TR
    • ZH
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Specification sheet

VEGABAR 81

Two-wire: 4 … 20 mA

    • EN
    • US
    • DE
    • ES
    • FR
    • IT
    • NL
    • PT
    • TR
    • ZH
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Operating instructions

VEGABAR 81

Two-wire: 4 … 20 mA

    • EN
    • DE
    • CS
    • DA
    • ES
    • FI
    • FR
    • HU
    • IT
    • KK
    • KO
    • NL
    • NO
    • PL
    • PT
    • SV
    • TR
    • UK
    • ZH
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Drawing generator

Generate 2D and 3D drawings for your specific configuration.

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Further downloads for this product

All documents and software for this product can be found in our Download Center.

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Welded socket with accessory VEGABAR series 80

No image available

Welded sockets are used to connect the sensors to the process.

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Block valve

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Electronics VEGABAR series 80

Process component VEGABAR 81

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