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Protection Heads and Tubes

Protection Heads and Tubes

8 Products
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Industrial protection heads are available in a variety of materials, are compatible with various probe diameters & can use transmitters. Available in single or dual elements.

Product Number Material Process Connection Terminals Protection Tube Entry
NB5-0
$62.89
30  In Stock
Cast Iron
1/2" NPT with compression fitting
Single element
1/2" NPT
NB5-2
$67.93
Available
in 5 days
Cast Iron
1/2" NPT with compression fitting
Duplex element
1/2" NPT
NB5-4
$70.81
Available
in 5 days
Cast Iron
1/2" NPT with compression fitting
No terminal block
1/2" NPT
NB6-0
$36.32
54  In Stock
Aluminum
1/2" NPT with compression fitting
No terminal block
1/2" NPT
NB6-2
$41.00
1  In Stock
Aluminum
1/2" NPT with compression fitting
Single element
1/2" NPT
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Ceramic Protection Tubes are made from MEGATITE™ 450 and MEGATITE™ 300 which protect the sensor at temperatures as high as 1950°C (3540°F). Optional fittings are available.

Product Number Material Maximum Temperature Rating Head Connection Size Process Connection Length Outer Diameter Inner Diameter Sensing End
PTRA-341-12
$52.92
Available
in 4 weeks
Alumina( 99.8%)
1950°C (3540°F)
None
None
12 in
1 in
0.750 in
Closed
PTRA-341-18
$79.06
5  In Stock
Alumina( 99.8%)
1950°C (3540°F)
None
None
18 in
1 in
0.750 in
Closed
PTRA-341-24
$102.27
Available
in 4 weeks
Alumina( 99.8%)
1950°C (3540°F)
None
None
24 in
1 in
0.750 in
Closed
PTRM-341-12
$40.61
Available
in 4 weeks
Mullite
1750°C (3180°F)
None
None
12 in
1 in
0.750 in
Closed
PTRM-341-18
$62.57
3  In Stock
Mullite
1750°C (3180°F)
None
None
18 in
1 in
0.750 in
Closed
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Protection Tubes outside diameters range from 1/16" - 1/2". Can also be secured into pipes using OMEGALOK® compression fittings (Sold Separately).

Product Number Material Maximum Temperature Rating Head Connection Size Process Connection Length Outer Diameter Inner Diameter Sensing End
SS-12-6OPEN
$14.64
Available
in 3 weeks
316 Stainless Steel
900°C (1650°F)
None
None
6 in
0.500 in
0.430 in
Open
SS-14-6OPEN
$10.28
Available
in 3 weeks
316 Stainless Steel
900°C (1650°F)
None
None
6 in
0.250 in
0.194 in
Open
SS-18-6OPEN
$10.28
Available
in 3 weeks
316 Stainless Steel
900°C (1650°F)
None
None
6 in
0.125 in
0.070 in
Open
SS-38-6OPEN
$10.28
Available
in 3 weeks
316 Stainless Steel
900°C (1650°F)
None
None
6 in
0.375 in
0.320 in
Open
INC-12-6OPEN
$34.43
Available
in 3 weeks
Inconel 600
1150°C (2100°F)
None
None
6 in
0.500 in
0.430 in
Open
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Protection heads are available in a variety of materials, are compatible with various probe diameters and can use transmitters. Also, configurable w/ single or dual elements.

Product Number Material Process Connection Terminals Protection Tube Entry
NB4
$43.82
3  In Stock
Aluminum
M16 x 1.5 with compression fitting
Duplex element
M10 x 1 works with 1/8 NPT
NB1-0
$36.00
Available
in 2 weeks
Cast Iron
1/2" NPT
No terminal block
1/2" NPT
NB1-2
$40.63
49  In Stock
Cast Iron
1/2" NPT
Single element
1/2" NPT
NB1-4
$43.82
Available
in 2 weeks
Cast Iron
1/2" NPT
Duplex element
1/2" NPT
NB2-0
$36.00
10  In Stock
Burnished Die Cast Aluminum
1/2" NPT with compression fitting for 1/8 to 1/4 in OD wire
No terminal block
1/2" NPT
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OMEGATITE 650® Protection Tubes is an alloy of silicon nitride and aluminum oxide and is made to with stand high temperatures up to 1250°C, thermal shock & corrosion .

Product Number Material Maximum Temperature Rating Head Connection Size Process Connection Length Outer Diameter Inner Diameter Sensing End
PTRS-612-450
$490.05
Available
in 8 weeks
Silicon Nitride & Aluminum Oxide
1250°C (2282°F)
None
None
450 mm
12.0 mm
6.0 mm
Closed
PTRS-612-600
$525.07
Available
in 8 weeks
Silicon Nitride & Aluminum Oxide
1250°C (2282°F)
None
None
600 mm
12.0 mm
6.0 mm
Closed
PTRS-916-150
$525.07
Available
in 8 weeks
Silicon Nitride & Aluminum Oxide
1250°C (2282°F)
None
None
150 mm
16.0 mm
9.0 mm
Closed
PTRS-916-300
$530.73
Available
in 8 weeks
Silicon Nitride & Aluminum Oxide
1250°C (2282°F)
None
None
300 mm
16.0 mm
9.0 mm
Closed
PTRS-916-600
$637.06
3  In Stock
Silicon Nitride & Aluminum Oxide
1250°C (2282°F)
None
None
600 mm
16.0 mm
9.0 mm
Closed
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Sanitary protection heads are available in a variety of materials, are compatible with various probe diameters and can use transmitters. Single or dual elements available.

Product Number Material Process Connection Terminals Protection Tube Entry
NB13-0
$121.78
Available
in 7 days
316 Stainless Steel
1/2" NPT
No terminal block
1/2" NPT
NB13-2
$126.06
Available
in 5 days
316 Stainless Steel
1/2" NPT
2 terminals (CH-73)
1/2" NPT
NB13-4
$130.33
Available
in 5 days
316 Stainless Steel
1/2" NPT
4 terminals (CH-74)
1/2" NPT
NB14-0
$93.31
Available
in 7 days
321 Stainless Steel
1/4" NPT
No terminal block
1/4" NPT
NB14-2
$97.59
Available
in 7 days
321 Stainless Steel
1/4" NPT
2 terminals (CH-73/M12)
1/4" NPT
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Metal Protection Tubes are use to further protect the sensor within the probe assemblies in mild to extreme environments depending on material type.

Product Number Material Maximum Temperature Rating Head Connection Size Process Connection Length Outer Diameter Inner Diameter Sensing End
1/2-PTBS-12
$103.14
Available
in 6 weeks
Black Steel
650°C (1200°F)
1/2 NPT
None
12 in
0.840 in
0.622 in
Closed
1/2-PTBS-18
$126.99
2  In Stock
Black Steel
650°C (1200°F)
1/2 NPT
None
18 in
0.840 in
0.622 in
Closed
1/2-PTBS-24
$155.74
Available
in 6 weeks
Black Steel
650°C (1200°F)
1/2 NPT
None
24 in
0.840 in
0.622 in
Closed
1/2-PTSS-12
$134.01
1  In Stock
304 Stainless Steel
900°C (1650°F)
1/2 NPT
None
12 in
0.840 in
0.622 in
Closed
1/2-PTSS-18
$193.61
Available
in 6 weeks
304 Stainless Steel
900°C (1650°F)
1/2 NPT
None
18 in
0.840 in
0.622 in
Closed
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Self-gripping spring and 1/2" NPT threaded fitting can be added to any 1/4" diameter probe to convert it for thermowell use. Helps achieve optimal thermal contact.

Product Number Material Process Connection Length Inner Diameter
1/4-SLK
$33.04
70  In Stock
Stainless Steel
1/2" NPT
1 in
1/4"
SLF-12-12-14
$30.08
Available
in 4 weeks
Stainless Steel
1/2" NPT
2 in
1/4"

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Protection Heads and Tubes

Choose from a wide variety of industrial protection heads and tubes to protect your temperature...
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