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Mineral Insulated, Industrial Process,
Base Metal and Noble Metal Thermocouple Assemblies. Tempco manufacturers
a wide variety of standard and custom designs for many diverse
industries and applications including food processing, petrochemical,
research laboratories, and semi conductors in temperature ranges from
cryogenic -200ºC (-328ºF) to 2315ºC (4200ºF). When you have a
special requirement or a difficult application, consult Tempco. Our team
of professionals, with vast engineering and application knowledge, can
assist you with specific solutions to your problem. |
MI Cable Thermocouple Assemblies
All Tempco-Pak Thermocouple Assemblies are made from TEMPCO's high quality
Tempco-Pak and will incorporate all the same outstanding features.
Important
Features:
* Accurate
* High Temperature Rating
* Fast Response
* Moisture Proof
* Thermal Shock Resistant
* Can Be Formed
* Weldable
* High Pressure Rated
* Compact
* Durable |
Typical
Applications
> Heat Treating
> Furnaces
> Ovens
> Kilns
> Metal Processing
> Glass Manufacturing
> Food Processing
> Steam Generators
> Petrochemical
> Turbines
> Power Stations
> Diesel Engines
> Research Laboratories
> Refineries
> Oil Processing
> Bearing Temperature |
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Selecting
the Correct Tempco-Pak Thermocouple Assembly |
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Thermocouples
must be selected to meet the conditions of each particular
application. The environment, operating temperature and
atmosphere, response time and length of service must be
considered when selecting the sheath, insulation, calibration,
junction and termination of the thermocouple assembly. Refer to
the Mineral Insulated Thermocouples and Cable section regarding
sheath, insulation and calibration (see
Metal
Sheathed, Mineral Insulated Thermocouple Cable). TEMPCO's
engineering staff will be happy to assist you with the design
and selection of your thermocouple requirements. |
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Formability
Because Tempco-Pak is fully annealed it can normally be
formed around a mandrel 4 times the sheath diameter. Consult TEMPCO if
special forming is required.
Weldability
The thermocouple sheath can be brazed, soldered or welded. It
is not recommended on diameters less than .093 in. All welding should be
done in an inert atmosphere.
Assembly Tolerances:
Sheath Length Dimensions
Sheath
O.D. |
"L"
Tolerance
Up to 24" |
"L"
Tolerance
Over 24" |
|
.020 to .038 |
±1/2 |
±2% |
|
.038 to .065 |
±3/8 |
±1-1/2% |
|
.065 and up |
±1/4 |
±1% |
Flexible Lead Dimensions
| Lead Length (ft.) |
Tolerance |
| 1 to 5 |
+6", -1" |
| 5 to 10 |
+6", -2" |
| 10 and over |
+5%, -2% |
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Sheath
Materials
The most commonly used sheath materials and their maximum
continuous operating temperatures in an oxidizing atmosphere are as
follows:
| Sheath Material |
Max. Operating Temperature |
| Alloy 600 |
2150ºF (1212ºC) |
| 304 Stainless Steel |
1650ºF (899ºC) |
| 316 Stainless Steel |
1650ºF (899ºC) |
| 310 Stainless Steel |
2000ºF (1150ºC) |
|
For temperatures exceeding 2200ºF
(1204ºC), Noble or Refractory metal sheaths are normally used. |
Calibrations
The table shows the standard temperature ranges for the
various ANSI thermocouple calibrations:
ANSI
Letter |
Thermocouple
Type |
Temperature
Range |
|
ºF |
(ºC) |
|
J |
Iron-Constantan |
32-1400 |
(0-760) |
|
K |
CHROMEL P®-ALUMEL® |
32-2300 |
(0-1260) |
|
N |
Nicrosil-Nisil |
32-2300 |
(0-1260) |
|
T |
Copper-Constantan |
32-700 |
(0-371) |
|
E |
CHROMEL P®-Constantan |
32-1600 |
(0-871) |
|
R |
Pt 13%
Rhodium-Platinum |
32-2700 |
(0-1482) |
|
S |
Pt 10%
Rhodium-Platinum |
32-2700 |
(0-1482) |
|
B |
Pt 30% Rh-Pt 6% Rh |
1472-3100 |
(800-1704) |
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Hot Junctions
(Hot or Measuring Junctions available on single or dual element cable.)
Choose the measuring junction that best suits your particular needs:
Exposed Junction (E)
Thermocouple wires are butt welded. Insulation is sealed against
liquid or gas penetration prior to use.
This junction style provides the fastest possible response time but leaves the
thermocouple wires unprotected against corrosive or mechanical damage.
Grounded Junction (G)
The sheath and thermocouple wires are welded together forming a
completely sealed integral junction. Recommended in presence of liquids,
moisture, gas or high pressure. The wire is protected from corrosive or erosive
conditions. In the Grounded Junction, response time approaches that of the
Exposed Junction.
Ungrounded Junction (U)
Thermocouple junction is fully insulated from welded sheath end.
Excellent for applications where stray emf's would affect the reading and for
frequent or rapid temperature cycling. With the Ungrounded Junction, response
time is slightly longer than for the Grounded Junction.
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Bare Wire | 2
Hole Alumina Insulator
Noble Metal Thermocouple Elements ANSI Type R and S are provided in
accordance with ITS90, and ANSI Type B is provided in accordance with IPTS-68.
Alumina insulators are recommended with noble metal thermocouples. All noble
metal elements have a butt welded junction and are available in 20 ga.
(.032"), 24 ga. (.020") and 30 ga. (.010").
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"L"
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| How
To Order |
| Noble Metal Thermocouple
Element Style NB is offered with the options listed below. Create an
ordering code by filing in the boxes with the appropriate number and/or
letter designation for your requirements, and a part number will be
assigned.
Please contact Thermal Tech
Equipment for further assistance.
816-468-7577 |
| Calibration
BOX 1 |
|
ANSI Type R,
S or B
|
|
| Wire
Gauge Size BOX
2 |
| 20,
24 or 30
gauge |
| Length
BOX 3 |
| Length "L" in whole
inches -- 06" min. |
|
| Style
NZ -- 2 Hole Alumina Insulator |
| How
To Order |
| Noble Metal Thermocouple
Element with 2 hole Alumina insulator Style NZ is offered with the
options listed below. Create an ordering code by filing in the boxes
with the appropriate number and/or letter designation for your
requirements, and a part number will be assigned.
Please contact Thermal Tech
Equipment for further assistance.
816-468-7577 |
| Calibration
BOX 1 |
|
ANSI Type R,
S or B
|
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| Wire
Gauge Size BOX
2 |
| 20,
24 or 30
gauge |
| Length
BOX 3 |
| Length "L" in whole
inches -- 06" min. |
|
· 30 ga. Insulator P/N
COR-124-105 and P/N COR-103-101
· 24 ga. Insulator P/N COR-124-104 and P/N
COR-103-101
· 20 ga. Insulator P/N COR-124-106 and P/N
COR-103-101
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General Purpose | Dual
Element | Angle Element
Tempco offers general purpose thermocouple elements in ANSI Type
"J" and "K". The general purpose elements are available with
a twisted and welded or butt welded junction. Available in 8 ga. (08), 14 ga.
and 20 ga. with standard calibration tolerances.
General
Purpose...
| Style
B -- Bare Wire |
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| Twisted and Welded Junction |
Butt Welded Junction |
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| Style
F -- Thermocouple with fiberglass sleeving |
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| Twisted and Welded Junction |
Butt Welded Junction |
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| Style
O -- 2 Hole Oval Insulator |
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| Twisted and Welded Junction |
Butt Welded Junction |
| • 8
ga. insulator P/N COR-122-101 |
•
14 ga. insulator P/N COR-122-102 |
• 20
ga. insulator P/N COR-122-103 |
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| |
| Style
R -- 2 Hole Round Insulator |
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| Twisted and Welded Junction |
Butt Welded Junction |
| •
8 ga. insulator P/N COR-127-102 |
•
14 ga. insulator P/N COR-126-102 |
•
20 ga. insulator P/N COR-125-102 |
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| How
To Order |
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Base Metal Thermocouple Elements Styles B, F, O and
R are offered with the options listed below. Create an ordering code
by filing in the boxes with the appropriate number and/or letter
designation for your requirements, and a part number will be assigned.
Please contact Thermal Tech
Equipment for further
assistance.
816-468-7577
|
| Design
Style
BOX 1 |
|
B,
F, O or R
|
| Calibration
BOX 2 |
| ANSI Type K
or J |
| Wire
Gauge Size
BOX 3 |
|
8 ga. (08),
14 or 20
|
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| Length
BOX 4 |
Length "L"
inches 06 to 99
Lengths over 99 in. consult TEMPCO |
| Junction
BOX 5 |
W
= Twisted and Welded
B = Butt Welded |
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Dual
Element
| Style
D -- Dual Element (Available
in 14 ga. and 20 ga. only) |
| |
| •
14 ga. insulator P/N COR-128-102 |
|
•
20 ga. insulator P/N COR-128-101 |
| |
| How
To Order |
| Base Metal Thermocouple
Element Style D is offered with the options listed below. Create an
ordering code by filing in the boxes with the appropriate number and/or
letter designation for your requirements, and a part number will be
assigned.
Please contact Thermal Tech
Equipment for further
assistance.
816-468-7577
|
Thermocouples are offered with the options listed in the
worksheet below. Create an ordering code by filing in the boxes with the
appropriate number and/or letter designation for your requirements, and a part
number will be assigned.
| Calibration
BOX 1 |
|
ANSI Type K
or J
|
| Wire
Gauge Size BOX
2 |
|
8 ga. (08),
14 or 20
|
|
| Length
BOX 3 |
Length "L"
in whole inches 06 to 99
Lengths over 99 in. consult TEMPCO |
| Butt-Welded
Junction BOX 4 |
1
= Common
2 = 2 separate junctions |
|
Angle
Element
| Style
D -- Dual Element (Available
in 14 ga. and 20 ga. only) |
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|
"L" |
|
"A" |
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|
"L" |
|
"A" |
|
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| Twisted
and Welded Junction |
Butt-Welded
Junction |
|
|
| •
8 ga. insulator P/N COR-122-101 |
•
14 ga. insulator P/N COR-128-102
* See this page for Insulator
Dimensions.
|
•
20 ga. insulator P/N COR-122-103 |
| How
To Order |
| Base Metal Thermocouple
Element Style A is offered with the options listed below. Create an
ordering code by filing in the boxes with the appropriate number and/or
letter designation for your requirements, and a part number will be
assigned.
Please contact Thermal Tech
Equipment for further
assistance.
816-468-7577
|
Thermocouples are offered with the options listed in the
worksheet below. Create an ordering code by filing in the boxes with the
appropriate number and/or letter designation for your requirements, and a part
number will be assigned.
| Calibration
BOX 1 |
|
ANSI Type K
or J
|
| Wire
Gauge Size BOX
2 |
|
8 ga. (08),
14 or 20
|
| Length
L
BOX 3 |
|
Length "L" in whole inches -- 03
" min.
|
|
| Length
A
BOX 4 |
| Length "A"
in whole inches -- 03
" min. |
| Junction
BOX 5 |
W
= Twisted and Welded
B = Butt Welded |
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Tempco manufactures many styles of industrial thermocouple assemblies for a
wide range of industries, from petrochemical to textile applications, where one
or more protection tubes may be necessary to protect the thermocouple. The
following offers typical assembly selections with IPT (Industrial Process
Thermocouple) assembly design numbers, replacement elements, thermowells and
protection tubes.
| How
To Order |
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Please Specify the following:
These are custom made thermocouple assemblies and require a
selection of materials as shown below:
[]
Style Number
[] Thermowell or
protection tube part
number.
[] "U",
"A", and "L" where applicable
[] ANSI Calibration
type
[] Select T/C element
style from pages
Base
Metal Thermocouples, Noble
Metal Thermocouples |
[]
Hot Junction Type; grounded junction is standard
[] Spring loaded
assembly is optional on styles 1, 2 and 5 only
[] Thermocouple head
size and material.
[] Quantity |
Please contact Thermal Tech
Equipment for further
assistance.
816-468-7577
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| Thermowell
Assemblies |
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| Thermocouple Head,
Nipple, Thermowell |
Thermocouple Head,
Nipple, Union, Nipple, Thermowell |
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| Metal
Protecting Tube Assemblies |
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Thermocouple Head,
Metal Protecting tube |
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| Ceramic
Tube Assemblies |
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| Thermocouple Head,
Fixed Bushing, Ceramic Tube |
Thermocouple Head,
Ceramic tube |
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