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WIKA · Temperature measurement · Family 74

Gas-actuated thermometer for sanitary applications

Gas-actuated thermometer for sanitary applications, stainless steel version, with liquid damping and VARIVENT® connection
Range
-30…160 °C
Accuracy
±1 °C within measuring range
Protection
IP65
3-AATEXEACGOSTCRNEx (ATEX)EAC Ex
Price
On request
Depends on configuration
Request a quote
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Description

This series of thermometers has been designed as an addition to the standard range of thermometers in order to meet the special requirements of the food, bio and pharmaceutical industries as well as in the paints and varnishes industry.

The model 74 gas-actuated thermometer is ideally suited to fulfil the high standard requirements of sanitary applications. Based on a third party verification, the thermometer complies with the 3-A standard and is marked by us accordingly.

Stem and case are made of stainless steel.

The surface of the wetted parts is polished, and a wide variety of process connections is available to ensure the optimal adaptation to many different process requirements. The stem is free of dead space.

for further approvals see page 10

Gas-actuated thermometer model R74.100 with liquid damping and VARIVENT ® connection

Special features

  • Dead space free
  • Hygienic design
  • Aseptic process connections
  • Material and surface finish quality in accordance with pharmaceutical industry directives and standards
Identification
Model74
SubcategoryGas-actuated thermometer
Measuring range
Temperature ranges−30…+50 °C · −20…+100 °C · +0…+120 °C · +0…+160 °C
Accuracy
Accuracy class±1 °C within measuring range, at 23 °C ±10 °C
Process conditions
Process connection
Threaded connection per DIN 11851Aseptic threaded pipe connection DIN 11864-1 form AClamp connectionVARIVENT®Aseptic flange connection DIN 11864-2 form AAseptic clamp connection DIN 11864-3 form ANEUMO BioControlVARIVENT ® connectionNEUMO BioControl ®Aseptic threaded pipe connection DIN 11864-2 form AAseptic threaded pipe connection DIN 11864-3 form AClamp connection per DIN 32676
Process temperature−10…+140 °C
Materials
Probe materialstainless steel 1.4435, 1.4435
Operating environment
Ambient temperature−50…+70 °C
IP ratingIP65
Certifications and approvals
Certifications
3-AATEXEACGOSTCRN
Explosion protection
Ex (ATEX)EAC Ex
Additional details
Sensor typegas-actuated
Probe length30 mm
Probe diameter21 mm
ThermowellNo
Tables from datasheet
ModelNSVersion
A74.100100Back mount (axial)
R74.100100Lower mount (radial)
Scale range in °CMeasuring range in °CScale spacing in °CError limit ±°C
-30 ... +50-20 ...+4011 2)
-20 ... +1000 ... 8011
0 ... 12020 ... 10011
0 ... 16020 ... 10011
DNFor pipe Outer Ø x wall thicknessPN 1)Dimensions inmm Ø D
33.7 (DN 25)33.7 x 24050
42.4 (DN 32)42.4 x 24050
48.3 (DN 40)48.3 x 24064
60.3 (DN 50)60.3 x 24077.5
76.1 (DN 65)76.1 x 22591
DNFor pipe Outer Ø x wall thicknessPN 1)Dimensions inmm Ø D
1 ½"38.1 x 1.654050
2"50.8 x 1.654064
2 ½"63.5 x 1.652577.5
3"76.2 x 1.652591
View all (20)
DNFor pipe Outer Ø x wall thicknessPN 1)Dimensions inmm Ø D
3234 x 14050
4040 x 14050
5052 x 14064
6570 x 22591
DNFor pipePN 1)Dimensions inmm
Outer Ø x wall thicknessØ D
1 ½"38.1 x 1.64050
2"50.8 x 1.64064
2 ½"63.5 x 1.62577.5
3"76.2 x 1.62591
DNFor pipe Outer Ø x wall thicknessPN 1)Dimensions inmm Ø D
33.733.7 x 1.22550
3838 x 1.22550
4040 x 1.22564
5151 x 1.22564
63.563.5 x 1.62577.5
7070 x 1.62591
76.176.1 x 1.62591
DNFor pipePNDimensions inmm
Outer Ø x wall thicknessGdDd 6g
4041 x 1.540Rd 65 x 1/638785610
5053 x 1.525Rd 78 x 1/6509268.510
8085 x 225Rd 110 x 1/42012710012
Access unit connectionPN 2)Dimensions inmm
Ddh
Form F25506612.3
Form N25688412.3
BioControl ® connectionPNDimensions inmm
d 2d 4Dfbk
Size 50164xØ95090172770
Size 65164 x Ø1168120172795
Size 80164 x Ø1187.51402537115
DNFor pipeDimensions inmmWeight in kg
Outer Ø x wall thicknessd 6G 1hF 1DkAseptic O-ringLinerThreaded coupling
4041 x 1.554.9RD 65 x 1/625DN 40782140 x 51.51.5
5053 x 1.566.9RD 78 x 1/625DN 50922252 x 52.22.3
6570 x 284.9RD 95 x 1/625DN 651122568 x 53.63.6
DNFor pipeDimensions inmmWeight in kg
Outer Ø x wall thicknessd 6G 1hF 1DkAseptic O-ringLinerThreaded coupling
42.442.4 x 2.054.9RD 65 x 1/625DN 40782140.5 x 51.51.5
48.348.3 x 2.066.9RD 78 x 1/625DN 50922246.5 x 52.22.3
60.360.3 x 2.084.9RD 95 x 1/625DN 651122558.5 x 53.63.6
76.176.1 x 2.098.9RD 110 x 1/425DN 801272973.5 x 55.04.9
DNFor pipeDimensions inmmWeight in kg
Outer Ø x wall thicknessd 6G 1hF 1DkAseptic O-ringLinerThreaded coupling
1 ½"38.1 x 1.6554.9RD 58 x 1/625DN 40782137 x 51.51.5
2"50.8 x 1.6566.9RD 65 x 1/625DN 50922250 x 52.22.3
2 ½"63.5 x 1.6584.9RD 78 x 1/625DN 651122562 x 53.63.6
3"76.2 x 1.6598.9RD 95 x 1/625DN 801272975 x 55.04.9
DNFor pipe Outer Ø x wallPN 3)Dimensions inmm
d 4KDb 2d 2Aseptic O-ring
4041 x 1.52553.76582104xØ940 x 5
5053 x 1.51665.77794104xØ952 x 5
6570 x 2.01681.795113108xØ968 x 5
8085 x 2.01697.7112133128 x Ø1183 x 5
DNFor pipePN 3)Dimensions inmm
Outer Ø x wall thicknessd 4KDb 2d 2Aseptic O-ring
42.442.4 x 2.01654.16582104xØ940.5 x 5
48.348.3 x 2.016607188104xØ946.5 x 5
60.360.3 x 2.0167285103108xØ958.5 x 5
76.176.1 x 2.01688.1104125128 x Ø1173.5 x 5
DNFor pipePN 3)Dimensions inmm
Outer Ø x wall thicknessd 4KDb 2d 2Aseptic O-ring
1 ½"38.1 x 1.652550.46279104xØ937 x 5
2"50.8 x 1.651663.57592104xØ950 x 5
2 ½"63.5 x 1.651675.989107104xØ962 x 5
3"76.2 x 1.651689.6104125128 x Ø1175 x 5
DNFor pipePN 3)Dimensions inmm
Outer Ø x wall thicknessd 4DAseptic O-ring
4041 x 1.54053.76440 x 5
5053 x 1.52565.777.552 x 5
6570 x 2.02581.79168 x 5
8085 x 2.02597.710683 x 5
DNFor pipePN 3)Dimensions inmm
Outer Ø x wall thicknessd 4DAseptic O-ring
42.442.4 x 2.02554.16440.5 x 5
48.348.3 x 2.025606446.5 x 5
60.360.3 x 2.025729158.5 x 5
76.176.1 x 2.01688.210673.5 x 5
DNFor pipePN 3)Dimensions inmm
Outer Ø x wall thicknessd 4DAseptic O-ring
1 ½"38.1 x 1.654050.56437 x 5
2"50.8 x 1.652563.577.550 x 5
2 ½"63.5 x 1.652575.99162 x 5
3"76.2 x 1.651689.610675 x 5
LogoDescriptionCountry
EU declaration of conformity ATEX directive (option) Hazardous areasEuropean Union
EAC (option) ■ Import certificate ■ Hazardous areasEurasian Economic Community
GOST (option) Metrology, measurement technologyRussia
®3-A (option) Sanitary StandardUSA
-CRN (option) Safety (e.g. electr. safety, overpressure, ...)Canada