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

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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

Gas separators (scrubbers)

Level and pressure measurement in the gas separator

Level and pressure measurement in the gas separator

To the application

Amine contactor

Level and pressure measurement of high pressure amine contactor

Level and pressure measurement of high pressure amine contactor

To the application

Expansion tank in a thermal solar plant

Level and pressure measurement in the expansion tank for heat transfer fluid (HTF)

Level and pressure measurement in the expansion tank for heat transfer fluid (HTF)

To the application

Digester

Level detection and pressure measurement in the digester

To the application
Technical specifications
Measuring range - Distance
-
Measuring range - Pressure
-1 ... 1000 bar
Process temperature
-90 ... 400 °C
Process pressure
-1 ... 1000 bar
Accuracy
0.2 %
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
IP 66/IP 68 (0.2 bar)
IP 66/IP 67
IP 66/IP 68 (1 bar)
IP 66/IP 68 (25 bar)
IP 69K
Output
Profibus PA
Foundation Fieldbus
4 … 20 mA
4 … 20 mA/HART - two-wire
Modbus
Slave 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
INMETRO / Brazil
CCOE / India
CSA / USA and Canada
Explosion protection
Intrinsic safety Ex ia
Pressure-tight encapsulation Ex d
Protection through housing St Ex
Foodstuffs/Pharma
3A
EHEDG
FDA
EG1935/2004
Ship approval
ABS
BV
CCS
DNV
GL
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

Product information

VEGABAR 81, 82, 83

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    • FR
    • IT
    • NL
    • PT
    • RU
    • TR
    • US
    • ZH
Download

Specification sheet

VEGABAR 81

4 … 20 mA - two-wire

    • EN
    • DE
    • ES
    • FR
    • IT
    • NL
    • PT
    • RU
    • TR
    • US
    • ZH
Download

Operating instructions

VEGABAR 81

4 … 20 mA - two-wire

    • EN
    • DE
    • CS
    • ES
    • FR
    • HU
    • IT
    • KK
    • NL
    • PL
    • PT
    • RU
    • TR
    • UK
    • ZH
Download

Product catalog

Process pressure

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    • DE
    • CS
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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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Ball valve fitting PASVE

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Siphon

Siphons according to DIN 16282 are cooling zones for protection of the pressure transmitters against too hot process media.

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Valve

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