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Pyromation Spring-Loaded MgO Thermocouple/Thermowell Assemblies with Explosion Proof Connection Heads Spring-Loaded MgO Thermocouple/Thermowell Assemblies with Explosion Proof Connection Heads

Spring-Loaded MgO Thermocouple/Thermowell Assemblies with Explosion Proof Connection Heads
Spring-Loaded MgO Thermocouple/Thermowell Assemblies with Explosion Proof Connection Heads

Spring-Loaded MgO/Thermowell Assemblies with Explosion Proof Connection Heads are designed for use with various thermowell types. Complete assemblies can be ordered by selecting the MgO assembly below, the thermowell from the thermowell section of the catalog, and a temperature transmitter from the back of this section. Assemblies without a thermowell can be ordered by selecting the sensor assembly from this page and inserting the “S” length in table 2-0. They are supplied with a 316 stainless steel sheath and as standard limits or error. Note: The “S” dimension will measure 1/4” longer than specified when the spring is in the relaxed position. The “S” dimension is calculated when the sensor is compressed or in the installed position. This design allows 1/4” spring compression to ensure positive contact with the bottom of the thermowell.

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Table 1Table 2Table 3Table 4Table 5Table 6Table 7Table 8
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Table 1Thermocouple Types
CODE
SINGLEDUPLEX
CODE
EEE
CODE
JJJ
CODE
KKK
CODE
TTT
Table 2Sheath Diameters
CODEDIAMETERS (inches) 316 SS
383/16
481/4
Table 3Measuring Junction
GGrounded junction
UUngrounded junction
Table 4Element Options
SLSpring-loaded element
SCSelf-contained spring-loaded element
SNSelf-contained spring-loaded element with Buna-N oil seal 121°C [250°F] 100 PSI Max
Table 5Head Mounting Fittings
STEEL FITTINGS
6HN1/2” x 1/2” NPT hex nipple 1” E length
STEEL FITTINGS
6PN1/2” NPT pipe nipple (specify “E” length in inches)
STEEL FITTINGS
6XU⁽¹⁾ 1/2” NPT union/nipple (specify “E” length in inches)
316 SS FITTINGS
8HN1/2” x 1/2” NPT hex nipple 1” E length
316 SS FITTINGS
8PN1/2” NPT pipe nipple (specify “E” length in inches)
316 SS FITTINGS
8XU⁽¹⁾1/2” NPT union/nipple (specify “E” length in inches)
Table 2Head Terminations
71Cast iron/aluminum explosion proof head Group C
72DIN form B aluminum explosion proof head Group B
74DIN form B aluminum explosion proof head Group A
81316L stainless steel explosion proof head Group C
82DIN form B 316 stainless steel explosion proof head Group B
Table 3Options
SB1/2” NPT conduit reducer bushing
IStainless tag
T-441⁽¹⁾ (4 to 20) mA Isolated head mounted transmitter
T-442⁽¹⁾ (4 to 20) mA Isolated Hart® head mounted transmitter
Table 4Select Type and Range from back of section
TT


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