Metal Protection Tube Thermocouple Style 620

Standard Metal Protection Tube Thermocouples

HOW TO CONSTRUCT A PART NUMBER

Table 1 (Style): See Aove style

Table 2 (Connection Head)

HEAD CODES
0 = NO HEAD
1= CAH (CAST ALUMINUM)
2= CIH (CAST IRON)
3= PPH (POLYPROPYLENE)
4= EPH (EXPLOSION PROOF)
5= MAH (MINI ALUMINUM)
6= (SPECIAL)

Table 3 (ANSI Designation)

SINGLE      DUAL                 ALLOY
   J                 SJ              Iron/Constantan
   K                SK             Chromel/Alumel
   T                ST              Copper/Constantan
   E                SE             Chromel/Constantan
   S                SS             Platinum vs. Platinum 10% Rhodium
   R                SR            Platinum vs. Platinum 13% Rhodium
   B                SB             Plt 6% Rhd. Vs. Plt 30% Rhd
   W               SW            Tungsten 5 % Rhenium vs Tg. 26% Rh
   N                SN             Nicrosil/Nisil

Table 4 (Junction Type)

CODE#              WIRE GAUGE
   08                     .125”
   14                     .064”
   20                     .032”
   24                     .020”

Table 5 (Protection Tubes)

CODE#    MATERIAL          MAX TEMP.         TUBE O.D.         MAX SIZE WIRE GA.
 T5              304 S.S.              1650 F                 1/8”                          20
 T6              304 S.S               1650 F                 1/4 “                         14
 T7              304 S.S.              1650 F                 1/2 “                          8
 T8              304 S.S.              1650 F                 3/4”                           20
 T9              304 S.S.              1650 F                  1”                             14
  I7              INCONEL 600    2100 F                 1/2 “                           8
  I8              INCONEL 600    2100 F                 3/4 “                         24
  F7             446 S.S               2000 F                1-3/4”                         8
  F8             445 S.S               2000 F                  3/4"                           8
 C5        CARBON STEEL     1200F                   1/8"                          20
 C6        CARBON STEEL     1200F                   1/4"                          14
 C7        CARNON STEEL     1200 F                  1/2"                          8
 C8        CARBON STEEL     1200 F                   3/4"                          8
 C9         CARBON STEEL    1200 F                     1"                            8

Table 6 (Process length in inches)

SPECIFY LENGTH INCHES
Example: 048 = 48”
 

Table 7 (Model 630)

COLD LEG LENGTH IN INCHES
IF NOT MODEL 630 USE 00

Table 8 (Options)

CODE
N = None

F = MOUNTING FLANGE