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Protection Tube Assembly Thermocouple and Replacement Thermocouple Elements
Protection Tube Assembly Type Thermocouples are designed for high temperature applications such as ovens, kilns, or other processes. Metal protection tubes can be used in applications ranging from 1200°F to 2100°F. Ceramic tubes can be used in applications from 1210°F to 4100°F. If ordering with a protection tube, specify A & AA dimensions in 6" increments.
7XXXX-XXX-XXX-X-X-X 7 SERIES PROTECTION TUBE T/C's 1ST SYMBOL (1ST X) SENSOR 0 NONE - NO THERMOCOUPLE TUBE ONLY J TYPE J THERMOCOUPLE K TYPE K THERMOCOUPLE R TYPE R THERMOCOUPLE (VENDOR QUOTE ONLY)* S TYPE S THERMOCOUPLE (VENDOR QUOTE ONLY)* 2ND SYMBOL (2ND X) HARDWARE 0 NONE 1 304 STAINLESS STEEL 2 316 STAINLESS STEEL 4 INCONEL 601 5 MULLITE 6 ALUMINA B CARBON STEEL 3RD SYMBOL (3RD X) MOUNTING 0 NONE 1 FLANGE 2 1/2 IN NPT HEX FITTING CS 3 3/4 IN NPT HEX FITTING CS 4 1 IN NPT HEX FITTING CS 5 1-1/4 IN NPT HEX FITTING CS 6 1/2 IN NPT HEX FITTING 316SS 7 3/4 IN NPT HEX FITTING 316SS 8 1 IN NPT HEX FITTING 316SS 9 1-1/4 IN NPT HEX FITTING 316SS A 1/2 IN NPT PIPE NIPPLE CS B 3/4 IN NPT PIPE NIPPLE CS C 1 IN NPT PIPE NIPPLE CS E 1/2 IN NPT PIPE NIPPLE 316SS F 3/4 IN NPT PIPE NIPPLE 316SS G 1 IN NPT PIPE NIPPLE 316SS 4TH SYMBOL (4TH X) TERMINALS 0 STRIPPED ENDS E SCREW COVER HEAD AL W/ 3/4 IN NPT ELEC CONNECTION G SCREW COVER HEAD SS W/ 3/4 IN NPT ELEC CONNECTION H SNAP COVER HEAD AL W/ 3/4 IN NPT ELEC CONNECTION 5TH SYMBOL (5TH X) ELEMENTS 0 NONE 1 SINGLE ELEMENT 2 DUAL ELEMENT 6TH SYMBOL (6TH X) BEND 1 STRAIGHT 2 45 DEGREES 3 90 DEGREES 7TH SYMBOL (7TH X) SENSOR O.D. 0 NONE 1 1/4 IN PIPE (METAL HARDWARE TYPE ONLY) 2 1/2 IN PIPE (METAL HARDWARE TYPE ONLY) 3 3/4 IN PIPE (METAL HARDWARE TYPE ONLY) 4 1 IN PIPE (METAL HARDWARE TYPE ONLY) A 0.375 IN OD (CERAMIC HARDWARE TYPE ONLY) B 0.687 IN OD (CERAMIC HARDWARE TYPE ONLY) C 0.750 IN OD (CERAMIC HARDWARE TYPE ONLY) D 1.000 IN OD (CERAMIC HARDWARE TYPE ONLY) 8TH SYMBOL (8TH X) WIRE GAUGE 0 NONE 1 8 AWG 3 14 AWG 4 20 AWG 5 24 AWG (SENSOR TYPE R OR S) 6 26 AWG (SENSOR TYPE R OR S) 9TH SYMBOL (9TH X) INSULATORS 0 NA (FOR TUBE AND SENSOR ASSEMBLIES) 1 NONE 2 OVAL 3 ROUND 4 INSULATED WITHOUT COLLAR (SENSOR TYPE R OR S) 5 INSULATED WITH COLLAR (SENSOR TYPE R OR S) 10TH SYMBOL (10TH X) JUNCTION 1 STANDARD OR TIG WELD 2 ISOLATED JUNCTION 3 TWIST WELD 11TH SYMBOL (11TH X) A DIMENSION (2 DIGITS) ?? HOT LEG LENGTH TO ELBOW OR HEAD IN INCHES 12TH SYMBOL (12TH X) AA/B DIMENSION (2 DIGITS) ?? COLD LEG LENGTH FROM ELBOW TO HEAD IN INCHES 13TH SYMBOL (13TH X) C DIMENSION 00 NA (FOR HEAD ASSEMBLIES ONLY) 15 1.5 INCH NOTES: * SENSOR TYPE R OR S MUST BE QUOTED PRIOR TO ORDER