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INDUSTRIAL
THERMOCOUPLES
Base
Metal Thermocouple Assemblies
Example:
K-12-600-24"
Type K Thermocouple, 1/2 NPT, Inconel 600 Tube, 24" long
NOTE:
In the Chart below, A refers to Table A (Thermocouple Type),
B refers to Table B (Protecting Tube Size), C refers
to Table C (Protecting Tube Material), D refers to the Assembly
Length from 12", in 6" increments, E refers to Table E (Mounting
Bushing) and F refers to the Table Notes. If you have
any questions,
please contact the factory.
PROTECTING
TUBE |
PART
NUMBER
(see Tables A,B,C,E and Notes below) |
MATERIAL |
SIZE
NPT |
CARBON
STEEL |
1/4
NPT |
A-14-118-D-E-F |
1/2
NPT |
A-12-118-D-E-F |
3/4
NPT |
A-34-118-D-E-F |
1
NPT |
A-44-118-D-E-F |
304
SS |
1/4
NPT |
A-14-304-D-E-F |
1/2
NPT |
A-12-304-D-E-F |
3/4
NPT |
A-34-304-D-E-F |
1
NPT |
A-44-304-D-E-F |
316
SS |
1/4
NPT |
A-14-316-D-E-F |
1/2
NPT |
A-12-316-D-E-F |
3/4
NPT |
A-34-316-D-E-F |
1
NPT |
A-44-316-D-E-F |
446
SS |
1/4
NPT |
A-14-446-D-E-F |
1/2
NPT |
A-12-446-D-E-F |
3/4
NPT |
A-34-446-D-E-F |
1
NPT |
A-44-446-D-E-F |
INCONEL
600 |
1/4
NPT |
A-14-600-D-E-F |
1/2
NPT |
A-12-600-D-E-F |
3/4
NPT |
A-34-600-D-E-F |
1
NPT |
A-44-600-D-E-F |
NOTES:
1) Schedule 40 protecting tubes are standard, for extra-heavy schedule
80 use code "H" (e.g. K-12-600-24"-0-H).
2) For open end, exposed T/C junction construction, use suffix "X"
(e.g. 12-304-12"-0-X)
TABLE
A - THERMOCOUPLE TYPE |
THERMOCOUPLE
TYPE |
SINGLE
ELEMENT |
DUAL
ELEMENT |
Chromel
vs Alumel |
K |
K2 |
Iron
vs Constantan |
J |
J2 |
NOTES:
1) All assemblies are plain junction unless otherwise specified.
2) For insulated junction, insert "U" (e.g. KU-12-600-24").
3) For angle type assembly, insert "A" code (e.g. KA-12-600-24").
For other than 18" cold leg specify cold leg length (e.g. KA(24")-12-600-24").
TABLE
B - PROTECTING TUBE SIZE
|
PROTECTING
TUBE SIZE |
ORDER
CODE |
T/C
ELEMENT REPLACEMENT |
HEAD
& BLOCK REPLACEMENT |
NPT |
I.D.
x O.D. |
SINGLE
ELEMENT |
DUAL
ELEMENT |
SINGLE
ELEMENT |
DUAL
ELEMENT |
1/4 |
0.364
x 0.540 |
14 |
14-A-R1-D |
14-A2-R4-D |
AWC-1/4 |
DWC-1/4 |
3/8 |
0.493
x 0.675 |
38 |
14-A-V1-D |
14-A2-R4-D |
AWC-3/8 |
DWC-3/8 |
1/2 |
0.622
x 0.840 |
12 |
08-A-V0-D |
14-A-V1-D
(2 pcs.) |
AWC-2 |
DWC-2 |
3/4 |
0.824
x 1.050 |
34 |
08-A-V0-D |
08-A-V0-D
(2 pcs.) |
AWC-3 |
DWC-3 |
1 |
1.049
x 1.315 |
44 |
08-A-V0-D |
14-A-V1-D
(2 pcs.) |
AWC-4 |
DWC-4 |
NOTES:
1) Schedule 40 protecting tubes are standard, for extra-heavy schedule
80 use code "H" (e.g. K-12-600-24"-0-H).
2) For open end, exposed T/C junction construction, use suffix "X"
(e.g. 12-304-12"-0-X)1)
3) Weatherproof cast iron head is standard, for WP aluminum head
use suffix "WA" (e.g. K-12-600-24"-WA).
4) For general purpose aluminum head, use suffix "GP" (e.g. K-12-600-24"-GP).
Not available in dual element.
5) 1/4 NPT & 3/8 NPT heads utilize reducer bushings.
TABLE
C - PROTECTING TUBE MATERIAL
|
MATERIAL |
ORDER
CODE |
MAX.
WORKING
TEMPERATURE |
APPROX.
MELTING
TEMPERATURE |
REPLACEMENT
PROTECTING
TUBE CODE |
CARBON
STEEL |
118 |
1300¡ÆF |
2500¡ÆF |
B-118-D-E |
304SS |
304 |
1650¡ÆF |
2560¡ÆF |
B-304-D-E |
316SS |
316 |
1700¡ÆF |
2500¡ÆF |
B-316-D-E |
446SS |
446 |
2000¡ÆF |
2700¡ÆF |
B-446-D-E |
INCONEL
600 |
600 |
2100¡ÆF |
2550¡ÆF |
B-600-D-E |
TABLE
E - MOUNTING BUSHING
|
FIXED
BUSHING
SIZE |
PART
NO.
(Steel) |
PART
NO.
(SS) |
1/2
NPT |
F12C |
F12S |
3/4
NPT |
F34C |
F34S |
1
NPT |
F44C |
F44S |
1-1/4
NPT |
F54C |
F54S |
1-1/2
NPT |
F64C |
F64S |
Notes:
1/2 NPT Bushing fits up to 3/8 pipe.
3/4 NPT Bushing fits up to 1/2 pipe.
1 NPT Bushing fits up to 3/4 pipe.
1-1/4 NPT Bushing fits up to 1 pipe.
1-1/2 NPT Bushing fits up to 1-1/4 pipe.
GIVE IMMERSION LENGTH WHEN ORDERING BUSHING (e.g. 12-304-24"-F34C-18").
For
more information regarding Industrial Thermocouples
Please
consult your Marlin Catalog, Pages C-60 to C-79.
If
you do not have a Marlin Catalog - Click
Here!
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