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Swaged or MGO thermocouples have a metal sheath and compacted
Magnesium Oxide powder for insulation. Since they have ceramic
insulation, swaged thermocouples can go to a much higher temperature
than Miniature and Probe types.
Swaged thermocouples are very
flexible and can safely handle a bend around a surface two times
the diameter of the sheath.
!
Note:
If you would like to order a Type E, J, N, or Type T assembly,
just substitute the K with a E, J, N, or T in the part numbers listed on
this page. Double element assemblies are also available.
Add a ”
D
” to the part number.
Example: 18K4DS9-G-K1-*
Swaged thermocouples are also available in Types B, C, R, and S.
Sheath materials other than the common ones listed at the bottom of
this page can be ordered. Some of these include: Molybdenum,
Tantalum, or Hastelloy. Phone one of our sales engineers for details.
We understand how important the quality of our thermocouples is to
our customers. This is why our thermocouples are made with high
purity Magnesium Oxide insulation and conductors which are within
special limits of error. A grounded junction is standard for quick response.
Application
Wire
Gauge
Outside Diameter
Inches mm
Type K
1
Hex Fitting (HX)
Swaged thermocouple with a hex fitting (
HX
) are used where a 316 stainless
steel 1/2” x 1/2” NPT fitting is desirable for mounting to the process and to the
connection head. The hex fittings are welded to the sheath for strength and
proper seating. Other size Hex Fittings are also available - consult factory.
2” bare leads are standard.
8
11
14
16
18
20
24
3/4
1/2
3/8
5/16
1/4
3/16
1/8
19.1
12.7
9.5
7.9
6.4
4.8
3.2
8K4S9-G-HX-*
11K4S9-G-HX-*
14K4S9-G-HX-*
16K4S9-G-HX-*
18K4S9-G-HX-*
20K4S9-G-HX-*
24K4S9-G-HX-*
2
Hex Fitting (HX) and Standard Head (Aluminum) (SH)
Swaged thermocouple with a hex fitting (
HX
) are used where a 316 stainless
steel 1/2” x 1/2” NPT fitting is desirable for mounting to the process and to the
connection head. The hex fittings are welded to the sheath for strength and
proper seating. These assemblies come with our (
SH
) Standard Heads.
8
11
14
16
18
20
24
3/4
1/2
3/8
5/16
1/4
3/16
1/8
19.1
12.7
9.5
7.9
6.4
4.8
3.2
8K4S9-G-HX-*-SH
11K4S9-G-HX-*-SH
14K4S9-G-HX-*-SH
16K4S9-G-HX-*-SH
18K4S9-G-HX-*-SH
20K4S9-G-HX-*-SH
24K4S9-G-HX-*-SH
3
Two Compression Fittings (CF) and
Standard Head (Aluminum) (SH)
A Compression Fitting (
CF
) is used to mount the Head instead of a hex fitting.
These assemblies come with a (
SH
) Standard Head. A second 1/8” NPT 316
stainless steel compression fitting (
CF
) is added by the “
CF
” at the end of the
part number to allow for adjusting the depth of insertion.
8
11
14
16
18
20
24
3/4
1/2
3/8
5/16
1/4
3/16
1/8
19.1
12.7
9.5
7.9
6.4
4.8
3.2
8K4S9-G-*-SH-CF
11K4S9-G-*-SH-CF
14K4S9-G-*-SH-CF
16K4S9-G-*-SH-CF
18K4S9-G-*-SH-CF
20K4S9-G-*-SH-CF
24K4S9-G-*-SH-CF
4
Transition Fitting (TF)
These
assemblies have extension wire attached to the thermocouple. This is
beneficial when the instrument is located some distance from the area where
the temperature is being measured. A relief Spring (
SR
) is installed to give
protection to the potted junction. 3” of split leads are standard. A 316 stainless
steel compression fitting (
CF
) allows for adjusting the depth of insertion.
18
20
24
1/4
3/16
1/8
6.4
4.8
3.2
18K4S9-G-Y-TR-X
20K4S9-G-Y-TR-X
24K4S9-G-Y-TR-X
5
Transition Fittings (TR) and Armored Cable (AC)
These assemblies are the same as the ones above but with a some length (
Z
)
of Armored Cable on the extension wire.
18
20
24
1/4
3/16
1/8
6.4
4.8
3.2
18K4S9-G-Y-TR-X-Z
20K4S9-G-Y-TR-X-Z
24K4S9-G-Y-TR-X-Z
Temperature Limits
Note: Limits are based on Type K thermocouples.
* Add required thermocouple length. Multiples of 6” (152.4 mm) starting at 12” are in stock. Note: * = Probe length in figures shown.
#9 Alloy (600) is standard, but #7 (446SS), #8 (304SS), #16 (316SS), #23 (2200 cable) can be requested. Just replace the “9” in the part number.
O.D.
Inches
Approx.
Gauge
# 8 or # 16
Alloy
# 9 or # 20
Alloy
# 23
Alloy
3/4
8
870°C 1600°F 1090°C 2000°F
-
-
1/2
11
870°C 1600°F 1090°C 2000°F
-
-
3/8
14
870°C 1600°F 1090°C 2000°F
-
-
5/16
16
870°C 1600°F 1090°C 2000°F
-
-
1/4
18
870°C 1600°F 980°C 1800°F 1260°C 2200°F
3/16
20
870°C 1600°F 870°C 1600°F 1260°C 2200°F
1/8
24
870°C 1600°F 870°C 1600°F 1260°C 2200°F
1/16
30
800°C 1470°F 800°C 1470°F 1260°C 2200°F
Thermocouples - Swaged or MGO Assemblies
Page 44
Phone: 617.527.4385 Fax: 617.964.3746 Email:
sales@asrichards.com