Pressure-triggered safety valve for critical thermometer applications
Industrial processes often involve hazardous or explosive substances, requiring robust safety mechanisms to minimize risks. Over time, thermowells can develop cracks due to abrasion or corrosion, potentially allowing hazardous materials to escape during active processes or maintenance. The patented Dual Seal feature included in iTHERM ModuLine industrial thermometers provides an additional safety barrier in the event of thermowell failure or breakage.
Increased plant safety with the second process barrier
Dual Seal technology available for iTHERM ModuLine TM131 / TM151 / TM152
Increased plant safety with the second process barrier
Dual Seal technology available for iTHERM ModuLine TM131 / TM151 / TM152
Benefits
No risk of hazardous leakages
Increased safety for maintenance personnel, plant and environment
Health monitoring & signal to PLC in case of activation
Additional health information from measurement device
Immediate sealing for containment of hazardous media
The Dual Seal mechanism detects a potential loss of thermowell integrity and immediately seals off the sensor insert, preventing the leakage of process medium into the terminal head, cabinet or environment. The temperature transmitter relays the message of the thermowell breakage to the process control system. This information is then used to bring the plant to a safe condition and prevent danger to people and the environment.
AccuracyClass AA acc. to IEC 60751 Class A acc. to IEC 60751 Class B acc. to IEC 60751 Class special or standard acc. to ASTM E230 Class 1 or 2 acc. to IEC 60584-2
Response timefastest response time with thermowell t90 starting at below 10 s depending on configuration
Max. process pressure (static)depending on the configuration up to 100 bar
Operating temperature rangePT100 TF iTHERM StrongSens: -50 °C ...500 °C (-58 °F ...932 °F) PT100 TF iTHERM QuickSens: -50 °C …200 °C (-58 °F …392 °F) PT100 WW: -200 °C ...600 °C (-328 °F ...1.112 °F) PT100 TF: -50 °C ...400 °C (-58 °F ...752 °F) Typ K: max. 1.100 °C (max. 2.012 °F) Typ J: max. 800 °C (max. 1.472 °F) Typ N: max. 1.100 °C (max. 2.012 °F)
Max. immersion length on requestup to 4.500,0 mm (177'')
AccuracyClass AA acc. to IEC 60751 Class A acc. to IEC 60751 Class B acc. to IEC 60751 Class special or standard acc. to ASTM E230 Class 1 or 2 acc. to IEC 60584-2
Response timedepending on configuration
Max. process pressure (static)depending on the configuration up to 500 bar
Operating temperature rangePT100 TF iTHERM StrongSens: -50 °C ...500 °C (-58 °F ...932 °F) PT100 TF iTHERM QuickSens: -50 °C …200 °C (-58 °F …392 °F) PT100 WW: -200 °C ...600 °C (-328 °F ...1.112 °F) PT100 TF: -50 °C ...400 °C (-58 °F ...752 °F) Typ K: max. 1.100 °C (max. 2.012 °F) Typ J: max. 800 °C (max. 1.472 °F) Typ N: max. 1.100 °C (max. 2.012 °F)
Max. immersion length on requestup to 1.500,0 mm (59,06'')
AccuracyClass AA acc. to IEC 60751 Class A acc. to IEC 60751 Class B acc. to IEC 60751 Class special or standard acc. to ASTM E230 Class 1 or 2 acc. to IEC 60584-2
Response timedepending on configuration
Max. process pressure (static)depending on the configuration up to 500 bar
Operating temperature rangePT100 TF iTHERM StrongSens: -50 °C ...500 °C (-58 °F ...932 °F) PT100 TF iTHERM QuickSens: -50 °C …200 °C (-58 °F …392 °F) PT100 WW: -200 °C ...600 °C (-328 °F ...1.112 °F) PT100 basic TF: -50 °C ...200 °C (-58 °F ...392 °F) Typ K: max. 1.100 °C (max. 2.012 °F) Typ J: max. 800 °C (max. 1.472 °F) Typ N: max. 1.100 °C (max. 2.012 °F)
Max. immersion length on request84"
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Enhanced safety in polymer production
iTHERM ModuLine TM131 with Dual Seal technology not only provides a second process barrier, but also signals when a fault is present, ensuring the safety of the operating personnel.
