VEGABAR 81

Pressure transmitter with chemical seal

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. 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

Technical data

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 69 K

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

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