INSULATED ELEMENT TWIST WELD DUPLEX INSULATED TIG WELD 1 1/2 NOMINAL ORDER CODES. INSULATOR DIMENSIONS (inches) SINGLE DUPLEX

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1 Straight Base Metal Thermocouple Elements The straight base metal thermocouple elements illustrated on this catalog page are replacement elements for use in Pyromation's complete industrial thermocouple assemblies as found elsewhere in this catalog section. These replacement elements are also compatible for use in other manufacturers' thermocouple assemblies. These thermocouples are available as bare wire or ceramic insulated elements, with options as listed below, and with special construction designs. BARE ELEMENT INSULATED JUNCTION INSULATED ELEMENT TWIST WELD DUPLEX INSULATED TIG WELD /2 NOMINAL ORDER S K8 C M - -,34 Single Straight Element Type (Type + Wire Gauge) J8 J J4 J20 Iron - Constantan K8 K K4 K20 Chromel - Alumel N8 N4 Nicrosil - Nisil DUPLEX STRAIGHT ELEMENTS Use thermocouple type code letter twice. Example: JJ4 or KK. Dual elements with ceramic insulators are supplied as two single elements. 2 Element Insulation WIRE GAUGE O Bare Element None Used C Oval Ceramic INSULATOR DIMENSIONS SINGLE DUPLEX 8 Ga x 0.28 Ga x Ga x Ga OD OD R Round Ceramic Ga OD OD 4 Ga OD OD 20 Ga OD 0.88 OD The above insulated elements are supplied with refractory insulators: 277 C [2330 F] maximum temperature. Element Options M Special limits wire - types J and K (consult factory for other types) 4 Element Options 0 Standard weld as noted below Twist and tig weld (not available with 8 gauge duplex) 2 Tig weld without twist L Insulated hot junction 34 Single terminal block on element 342 Duplex terminal block on element Unless specified by option numbers above, all 8,, and 4 gauge elements will be provided with Opt. 2 (tig weld without twist). 20 gauge elements will be provided with Opt. (twist and tig weld). All elements, regardless of gauge, over 96" will be supplied with Option (twist and tig weld). 3 Element Length Specify other lengths in inch increments. Actual cut length will be (/2)" longer than specified length to allow for terminal connections. 2-6 IND-

2 Angle Base Metal Thermocouple Elements The angle base metal thermocouple elements illustrated on this catalog page are replacement elements for use in Py ro ma tion's complete angle thermocouple assemblies as found elsewhere in this catalog section. These replacement elements are also compatible for use in other manufacturers' angle thermocouple assemblies. These thermocouples are available with the options listed below and with special construction designs. These replacement elements are shipped in a straight configuration and are to be bent at the time of installation. 4 TYPICAL COLD LEG /2 NOMINAL INSULATED JUNCTION H O T L E G TWIST WELD TIG WELD ORDER S K8 A , L, 34 Single Angle Element Type (Type + Wire Gauge) J8 J J4 Iron - Constantan K8 K K4 Chromel - Alumel N8 N4 Nicrosil - Nisil DUPLEX ANGLE ELEMENTS Requires the use of 2 single elements. 2 Element Insulation INSULATOR WIRE GAUGE INSULATOR DIMENSIONS SINGLE Two hole oval ce ram ic in su la tors 8 Ga x 0.28 A on hot and cold legs. Ball and Ga x sock et in su la tors at bend 4 Ga x 0.28 The above insulated elements are supplied with refractory insulators: 277 ºC [2330 ºF] maximum temperature. Element Options M Special limits wire - types J and K (consult factory for other types) 3 Hot Leg Length Specify Other Lengths 5 Element Options 0 Standard weld as noted below Twist and tig weld 2 Tig weld without twist L Insulated hot junction 34 Single terminal block on element 342 Duplex terminal block on element Unless specified by option numbers above, all 8,, and 4 gauge elements will be provided with Opt. 2 (tig weld without twist). All elements, regardless of gauge, over 96" will be supplied with Option (twist and tig weld). 4 Cold Leg Length Specify other lengths in inch increments. Actual cut length will be (/2) longer than specified length to allow for terminal connections. IND-2 3-5

3 Noble Metal Platinum Thermocouple Elements The noble metal platinum thermocouple elements illustrated on this catalog page are replacement elements for use in Pyromation's complete high temperature industrial thermocouple assemblies as found elsewhere in this catalog sec tion. These re place ment elements are also compatible for use in other manufacturers' high temperature ther mo cou ple as sem blies. All in su lat ed elements are supplied with high temperature alumina insulators and are available with the options as listed below. Element types R, S, and B are supplied with a fusion weld. Custom designed constructions are available. INSULATED ELEMENT without COLLAR (supplied with recessed junction as standard) INSULATED ELEMENT with COLLAR 2 NOMINAL Note: Elements supplied without collars are intended to be used with ceramic tubes that are not supplied with hex fittings. 2 NOMINAL Note: Elements supplied with collars are intended to be used with ceramic tubes with hex fittings. ORDER S R R Single Straight Element Type (Type + Wire Gauge) R R26 Platinum - Platinum 3% Rhodium S S26 Platinum - Platinum 0% Rhodium Platinum - 30% Rhodium - Platinum B 6% Rhodium DUPLEX STRAIGHT ELEMENTS Use thermocouple type code letter twice. EXAMPLES: RR or SS26 2 Element Insulation INSULATOR WIRE GAUGE O Uninsulated Bare Element None R Round, 99.7% Alumina Insulator (4-hole, single and duplex) 87 º C [3400 º F] maximum temp. 26 INSULATOR DIMENSIONS SINGLE and DUPLEX 0.88 OD w OD Collar 0.88 OD w OD Collar Element Options M Reference grade (consult factory for other types) 4 Element Options 3 Supplied without ceramic collar L Recessed insulated hot junction 3 Element Length Specify other lengths in inch increments. 4-7 IND-3

4 Standard Service Metal Alloy Protection Tubes The thermocouple protection tubes illustrated on this catalog page are replacement tubes for Pyromation s complete thermocouple assemblies as found elsewhere in this catalog section. They are compatible replacements for other manufacturers protection tubes. The materials of construction are those most commonly used in general purpose in dus tri al process heating applications. These protection tubes are available with the options as listed below, with other pipe schedule sizes, and they can be supplied with custom designed constructions. TUBE with OPTIONAL WELDED BUSHING TUBE with FLANGE OPTION H TUBE with TEMPERATURE CHECK FITTING ORDER S D6 Protection Tube NPT Connections NPT SIZE PIPE SCHED. [] CARBON STEEL 538 ºC [000 º F] Max / / / SS 927 ºC [700 º F] Max / / / SS 093 ºC [2000 º F] Max / /4 40 INCONEL ºC [200 º F] Max / /4 40 INCONEL ºC [2300 º F] Max / / [] Schedule 80 and 60 are available in some alloys as special order items. Consult factory for price and delivery. 2 Tube Length Specify other lengths in inch increments. 3 Protection Tube Options A Open end tube (closed end stan dard) H Adjustable steel mounting flange NT Supplied without threads 6Y Steel temperature check fitting Optional Welded Bushings STEEL 36 SS BUSHING SIZE 6C(U) 8C(U) 6D(U) 8D(U) /2 NPT Bushing (25 tubes only) 3/4 NPT Bushing (25 and 50 tubes only) NPT Bushing 6E(U) 8E(U) (25, 50, and 75 tubes only) 6F(U) 8F(U) (/4) NPT Bushing 6G(U) 8G(U) (/2) NPT Bushing Substitute insertion length, in inches, mea sured from hot tip to bottom of bushing for (U) above. Insert NW in place of insertion length (U) for bushing sup plied loose on tube. Metal Alloy Tube Dimensions PIPE SIZE OD SCH. 40 ID SCH. 80 ID SCH. 60 ID / / / IND-4 5-5

5 Special Service Protection Tubes The protection tubes listed below are designed for use in high temperature corrosive service applications. The Series 4 protection tubes are used in waste incineration, cement and lime kilns, utility and recovery boilers, fluidized bed combustion systems, and other harsh process environments when high levels of sulphur, chlorides, ash, and salt deposits are commonly found. The Series 2 protection tubes are also excellent choices for use in waste incineration, immersion into molten copper, brass, basic steels and slag, and for use in open hearth furnaces, soaking pits, and blast furnace applications. TUBE 2 (see note below) Note: Series 2 tubes dimensions are fixed at approximately less than specified length. TUBE with TEMPERATURE CHECK FITTING x 3/4 Steel Hex Fitting Standard. No optional welded bushings are necessary. TUBE 4 with FLANGE OPTION H TUBE 4 with OPTIONAL BUSHING ORDER S E6 Protection Tube NPT Connections NPT SIZE PIPE SCHED. HR ºC [2200 º F] Max / / / / LT- 37 ºC [2500 º F] Max n/a OD ID 2 Tube Length Specify other lengths in inch increments. 3 Protection Tube Options A Open end tube (closed end stan dard) H Adjustable steel mounting flange NT Supplied without threads 6Y Steel temperature check fitting Optional Welded Bushings For Series 4 STEEL 36 SS BUSHING SIZE 6D(U) 8D(U) 3/4 NPT Bushing (50 tubes only) 6E(U) 8E(U) NPT Bushing (50 and 75 tubes only) 6F(U) 8F(U) (/4) NPT Bushing 6G(U) 8G(U) (/2) NPT Bushing Substitute insertion length, in inches, mea sured from hot tip to bottom of bushing for (U) above. Insert NW in place of insertion length (U) for bushing sup plied loose on tube. 6-6 IND-5

6 Special Service Protection Tubes The Series, 3, and 4 protection tubes are used to protect thermocouple elements in molten aluminum and zinc applications such as diecasting, melting, smelting, and high temperature holding furnace environments. Series 8 Silicon Carbide protection tube can also be used in the above applications, however the Series 8 is a refractory silicate bonded tube and generally will not provide a service life equal to silicon nitride bonded silicon carbide protection tubes. The Series 8 is satistactory for use in other molten metals, molten glass, and other high temperature applications. Series 3, 4, and 8 protection tubes should be preheated and slowly immersed into any molten materials. TUBE TUBE 3 TUBE 8JC NOMINAL /2 NOMINAL TUBE 4 /2 NOMINAL ORDER S Protection Tube NPT Connections NPT SIZE TUBE OD ID CAST IRON 87 ºC [600 ºF] Max Internally thread ed 3/ VESUVIUS 927 ºC [700 ºF] Max / SILICON CAR BIDE 649 ºC [3000 ºF ] Max. 8J Plain tube w/o collar None JC 3" OD collar None CERITE 85 ºC [300 ºF] (36 maximum length) 4-50 [] Cerite II / [] For Cerite protection tubes supplied with 36SS pipe instead of a carbon steel pipe, change model number prefi x code 4 to 48. EXAMPLE: MAX. 2 Tube Length Recommended Applications CAST IRON Aluminum VESUVIUS Aluminum SILICON CARBIDE (Silicate Bonded) CERITE Aluminum (see comments above for Series 8 Tube), molten ferrous and non-ferrous met als, glass processing, kilns, incinerators, and other high temperature pro cess es Aluminum, Zinc IND-6 7-6

7 Ceramic Protection Tubes The thermocouple protection tubes illustrated on this catalog page are replacement tubes for Pyromation's complete ceramic protection tube thermocouple assemblies as found elsewhere in this catalog section, and they are compatible replacements for other manufacturers' protection tubes. The Series 6 mullite tubes are composed of 63% alumina, and have slightly more porosity than the Series 7 alumina tube composed of 99.7% alumina, which is considered to be more gas tight. PIPE NIPPLE E BRASS FERRULE for OPEN STYLE HEAD or NT OPTION HEX FITTING PLAIN or WITH COLLAR ORDER S 2 3 7A Ceramic Protection Tube Materials - Sizes - Fittings TUBE MATERIAL TUBE SIZE COLLAR or FITTING STYLE and MULLITE 482 ºC [2700 ºF] ALUMINA 87 ºC [3400 ºF] ID OD FITTING TYPE - SIZE PROCESS THREAD TERM. THREAD 6AH 7AH /4 3/8 Steel hex fitting /2 NPT /2 NPT 6A 7A /4 3/8 Steel close nipple /2 NPT /2 NPT 6A(E) 7A(E) /4 3/8 Specify "E length" steel nipple /2 NPT /2 NPT 6AF 7AF /4 3/8 7/8" OD x 2" L brass ferrule for open head None 7/8 x 27 UNS 6A 7A /4 3/8 Plain tube None None 6AC N/A /4 3/8 Tube with 5/8" OD x /2" L collar None None 6BH 7BH 7/6 /6 Steel hex fitting 3/4 NPT /2 NPT 6B 7B 7/6 /6 Steel close nipple 3/4 NPT 3/4 NPT 6B(E) 7B(E) 7/6 /6 Specify "E length" steel nipple 3/4 NPT 3/4 NPT 6BF 7BF 7/6 /6 7/8" OD x 2" L brass ferrule for open head None 7/8 x 27 UNS 6B 7B 7/6 /6 Plain tube None None 6BC N/A 7/6 /6 Tube with " OD x /2" L collar None None 6CH 7CH /2 3/4 Steel hex fitting 3/4 NPT /2 NPT 6C 7C /2 3/4 Steel close nipple 3/4 NPT 3/4 NPT 6C(E) 7C(E) /2 3/4 Specify "E length" steel nipple 3/4 NPT 3/4 NPT 6C 7C /2 3/4 Plain tube None None 6CC N/A /2 3/4 Tube w/(/8)" OD x /2" L col lar None None 6WH 7WH 5/8 7/8 Steel hex fitting NPT 3/4 NPT 6W 7W 5/8 7/8 Steel close nipple NPT NPT 6W(E) 7W(E) 5/8 7/8 Specify "E length" steel nipple NPT NPT 6W 7W 5/8 7/8 Plain tube None None 6EH 7EH (/4) Steel hex fitting (/4) NPT NPT 6E 7E (/4) Steel close nipple (/4) NPT (/4) NPT 6E(E) 7E(E) (/4) Specify "E length" steel nipple (/4) NPT (/4) NPT 6E 7E (/4) Plain tube None None 6EC N/A (/4) Tube w/(3/4)" OD x /2" L col lar None None 3 Options 36 SS nipple or 8 hex tube fitting No process mtg. NT threads on pipe nipples 2 Tube Length Specify other lengths in inch increments. 8-5 IND-7

8 Thermocouples with Standard Service Protection Tubes The straight base metal thermocouple assemblies illustrated on this page are those most commonly used in medium to high temperature low corrosion industrial process heating applications. All listed assemblies are provided with schedule 40 protection tubes, and are available with listed options. Heavier pipe schedule protection tubes and special construction designs are also available. ASSEMBLY with WELDED BUSHING ASSEMBLY with OPTIONAL FLANGE ASSEMBLY with OPTIONAL UNION NIPPLE ASSEMBLY with TEMPERATURE CHECK FITTING E ORDER S K8C E20-34 Thermocouple Type + Wire Gauge Size J8C JC J4C K8C KC K4C N8C N4C Thermocouples of 8 ga. wire require min i mum of /2 NPT tube DUPLEX T/C ASSEMBLIES For duplex assemblies use the T/C type code letter twice. Example: K8C becomes KK8C Protection Tube Material 3 NPT Thread Size MATERIAL /4 /2 3/4 6 CARBON STEEL SS SS INCONEL INCONEL Tube Length Specify other lengths in inch increments. Duplex 8,, and 4 ga. as sem blies require a minimum /2" NPT pro tec tion tube size (size codes 50 and larger). 8 gauge duplex thermocouple elements supplied in /2" NPT protection tubes will be supplied with round insulators. 5 Optional Welded Bushings STEEL 36SS BUSHING SIZE 6C(U) 8C(U) /2 NPT Bushing (25 tubes only) 6D(U) 8D(U) 3/4 NPT Bushing (25 and 50 tubes only) 6E(U) 8E(U) NPT Bushing (25, 50 and 75 tubes only) 6F(U) 8F(U) (/4) NPT Bushing 6G(U) 8G(U) (/2) NPT Bushing Substitute insertion length, in inches, measured from hot tip to bottom of bushing for (U) above. Insert NW in place of insertion length (U) for bushing supplied loose on tube. Optional Union and Nipple Head Connection STEEL 36 SS Union-nipple supplied as material specified 6PU(E) [] 8PU(E) [] [] Insert extension length, in inches, for (E) above. 6 Head Terminations 3 Aluminum screw cover head 34 Cast iron screw cover head 49 Flip top aluminum head 7 [] Cast iron aluminum explosion proof head 8 [] 36L SS explosion proof head 9 [] 36L SS head [] Not available with NPT protection tubes. 6- Assembly Options GS Ground screw H Adjustable steel mounting flange I Stainless tag 6Y Steel temperature check fitting L Insulated hot junction IND-8 9-6

9 Thermocouples with Special Service Protection Tubes The straight base metal thermocouple assemblies illustrated on this page are typically used in high temperature and highly corrosive applications commonly found in waste incinerators, cement and lime kilns, utility and waste recovery boilers, and other severe process environments. Special construction designs are also avail able. SERIES 2 ASSEMBLY with " STEEL HEX FITTING STD. Series 2 tubes dimensions are fixed at approximately less than specified length SERIES 4 ASSEMBLY with OPTIONAL FLANGE ASSEMBLY with WELDED BUSHING ORDER S K8C E20-34, I 5- Thermocouple Type + Wire Gauge Size K8C N8C DUPLEX T/C ASSEMBLIES For duplex assemblies use the T/C type code letter twice. Example: K8C becomes KK8C gauge duplex thermocouple elements supplied in 4-50 and 2-75 protection tubes will be supplied with round insulators. 2 Protection Tube Material NPT Connection NPT SIZE HR / / / / LT /4 3 Tube Length Specify other lengths in inch increments. PIPE SCHED OD ID 4 Optional Welded Bushings STEEL 36SS BUSHING SIZE 6D(U) 8D(U) 3/4 NPT Bushing (25 and 50 tubes only) 6E(U) 8E(U) NPT Bushing (50 and 75 tubes only) 6F(U) 8F(U) (/4) NPT Bushing 6G(U) 8G(U) (/2) NPT Bushing Substitute insertion length, in inches, measured from hot tip to bottom of bushing for (U) above. Insert NW in place of insertion length (U) for bushing supplied loose on tube. Optional Union and Nipple Head Connection STEEL 36 SS 6PU(E) 8PU(E) Union-nipple supplied as material specified Insert extension length, in inches, for (E) above. 5 Head Terminations 3 Aluminum screw cover head 34 Cast iron screw cover head 49 Flip top aluminum head 7 [] Cast iron aluminum explosion proof head 8 [] 36L SS explosion proof head 9 [] 36L SS head [] Not available with NPT protection tubes. 5- Assembly Options GS Ground screw H Adjustable steel mounting flange I Stainless tag 6Y Steel temperature check fitting L Insulated hot junction Copyright 2006Pyromation, Inc., All Rights Reserved. 0-6 IND-9

10 Thermocouple Assemblies with Protection Tubes for Molten Aluminum The Series, 3 and 4 assemblies are used to protect thermocouple elements in molten aluminum and zinc applications such as diecasting, melting, smelting and high temperature holding furnace environments. The Series 8 silicon carbide assembly can also be used in the above mentioned applications, however the Series 8 is a refractory silicate bonded tube and generally will not provide a service life equal to silicon nitride bonded silicon carbide assemblies. The Series 8 is satisfactory for use in other molten metals, molten glass, and other high temperature applications. Series 3, 4, and 8 assemblies should be preheated and slowly immersed into any molten materials. SERIES 3 PROTECTION TUBE ASSEMBLIES FIG. SERIES 8J PROTECTION TUBE ASSEMBLIES FIG. 2 SERIES PROTECTION TUBE ASSEMBLIES FIG. 3 SERIES 8JC PROTECTION TUBE ASSEMBLIES FIG. 4 CERITE II 4 PROTECTION TUBE ASSEMBLY FIG. 5 ORDER S K8C , H Thermocouple Type + Wire Gauge Size K8C N8C DUPLEX T/C ASSEMBLIES For duplex assemblies use the T/C type code letter twice. Example: K8C becomes KK8C For additional types and sizes consult factory. 2 Protection Tube Material FIGURE NUMBER CAST IRON VESUVIUS 3-75 SILICON CARBIDE 8J JC-75 4 CERITE II 4-50 [] 5 [] For protection tubes supplied with a 36SS pipe instead of a carbon steel pipe, change order number 4 to 48. EXAMPLE: K8C Protection Tube Dimensions ID x OD x x J.00 x.75 8JC.00 x x Head Terminations 3 Aluminum screw cover head 34 Cast iron screw cover head 49 Flip top aluminum head 9 36L SS head 4- Assembly Options GS Ground screw H Adjustable steel mounting flange I Stainless tag L Insulated hot junction 3 Tube Length [] 48 [] 30 Consult factory for other lengths. [] 42 & 48 not available in 4 Series tubes. IND-0-6

11 Thermocouple Assemblies with Ceramic Protection Tubes The straight noble and base metal thermocouple assemblies, with Series 6 mullite and Series 7 alumina protection tubes, illustrated on this catalog page are those most commonly used in high temperature process heating applications. These assemblies are available with a variety of process mounting fittings and assembly options as listed below. Special construction designs are also available. HEX FITTING PIPE NIPPLE with HT OPTION E PIPE NIPPLE with NT OPTION and FLANGE E OPEN TERMINAL HEAD (OPT. N) ORDER S RR - 7BH - 8-3, 8 Thermocouple Type + Wire Gauge Size BR RR R26R SR S26R 8ga. duplex elements only available in W series tubes. For duplex T/C's, use element type twice. Example: RRR 2 Protection Tube TUBE MATERIAL AND SIZE MULLITE 482 ºC [2700 ºF] ALUMINA 87 ºC [3400 ºF] K8R [] N8R [] [] Use only with 6C or 6W series tubes TUBE OD NPT SIZE KC [2] N4C [2] [2] Use only with 6B or 6C series tubes PROCESS MOUNTING FITTING 6AH [] 7AH [] 3/8 /2 Steel hex fitting 6A [] 7A [] 3/8 /2 Steel close nipple 6A(E) [] 7A(E) [] 3/8 /2 Specify nipple "E" length 6AF [] 7AF [] 3/8 None 7/8" OD x 2" L open head ftg 6BH 7BH /6 3/4 Steel hex fitting 6B 7B /6 3/4 Steel close nipple 6B(E) 7B(E) /6 3/4 Specify nipple "E" length 6BF 7BF /6 None 7/8" OD x 2" L open head ftg 6CH 3/4 3/4 Steel hex fitting 6C 3/4 3/4 Steel close nipple 6C(E) 3/4 3/4 Specify nipple "E" length 6WH 7/8 Steel hex fitting [] All assemblies with a 3/8 OD tube should be ordered with an aluminum termination head. 4 Head Terminations 3 Aluminum screw cover head 34 Cast iron screw cover head 49 Flip top aluminum head 9 36L SS head N 4- Assembly Options GS Ground screw NT No process threads on pipe nipple HT Threaded flange on nipple I Stainless tag 8 36SS nipple or hex tube fitting H Adjustable steel mtg. flange 3 Tube Length Open terminal head - R, S, B only (require AF or BF protection tubes) Specify other lengths in inch increments. 2-6 IND-

12 Thermocouple Assemblies with Double Protection Tubes The straight noble metal thermocouple assemblies illustrated on this catalog page are provided with double protection tubes. Outer protection tube choices of ceramic materials, metal alloys, or composite materials offer thermocouple pro tec tion from a variety of high temperature process heating environments. All assemblies are provided with a ceramic inner tube. These assemblies are available with a variety of process mounting fittings and assembly options as listed below. Spe cial con struc tion de signs are also avail able. FLANGED ASSEMBLY FIG. HEX FITTING FIG. 2 CLAMP ASSEMBLY FIG. 3 WELDED BUSHING FIG. 4 SR ORDER S - 2 6BH-8J , H Thermocouple Type + Wire Gauge Size BR RR SR 2 Protection Tubes (Inner and Outer) MATERIAL TYPE SIZE INNER OUTER O.D. PROCESS MOUNTING FITTING NPT. THREAD FITTING TYPE 7A-7BH Alumina Alumina /6 3/4 Figure 2 7A-7B Alumina Alumina /6 3/4 steel nipple 7A-7B(E) Alumina Alumina /6 3/4 Nipple (specify length) 7A-2-75 Alumina LT- 7/8 Figure 2 7BH-8J Alumina Silicon Carbide (3/4) None Figure 3 7BH-8JC Alumina Silicon Carbide (3/4) None Figure 6A-6BH Mullite Mullite /6 3/4 Figure 2 6A-6B Mullite Mullite /6 3/4 steel nipple 6A-6B(E) Mullite Mullite /6 3/4 Nipple (specify length) 6A-2-75 Mullite LT- 7/8 Figure 2 6BH-8J Mullite Silicon Carbide R26R S26R For duplex T/C's, use element type twice. Example: RRR (3/4) None Figure 3 6BH-8JC Mullite Silicon Carbide (3/4) None Figure 6B-4-75 Mullite HR None Figure 4 6B-7-75 Mullite Inc None Figure 4 The inner protection tubes are cemented to the outer tube and are not re place able as separate items, except for Silicon Carbide assemblies. Optional Welded Bushings (only on HR-60 and Inconel Tubes) STEEL 36 SS BUSHING SIZE 6E(U) 8E(U) NPT Bushing 6F(U) 8F(U) (/4) NPT Bushing 6G(U) 8G(U) (/2) NPT Bushing Substitute insertion length, in inches, mea sured from hot tip to bottom of bushing for (U) above. Insert NW in place of insertion length (U) for bushing sup plied loose on tube. 5 Head Terminations 3 Aluminum screw cover head 34 Cast iron screw cover head 49 Flip top aluminum head 9 36L SS head N Open terminal head - R, S, B only (request AF or BF) 5- Assembly Options GS Ground screw NT No mounting threads on pipe nipple HT Threaded flange on nipple I Stainless Tag 8 36SS nipple or hex tube fitting H Adjustable steel mtg. flange 3 Tube Length Specify other lengths in inch increments. IND-2 3-6

Thermal Solutions Worldwide SECTION C. Industrial Thermocouples and RTDs. Straight Thermocouples Assemblies with Metal Protection Tubes C-5

Thermal Solutions Worldwide SECTION C Industrial Thermocouples and RTDs Straight Base Metal Thermocouple Elements C1 Angle Base Metal Thermocouple Elements C2 Straight Noble Metal Thermocouple Elements