
Miniature and Standard
Protection Tubes
⻬ 316 Stainless Steel
®
⻬ Inconel
600
⻬ Opened or Closed Ends
Compression fitting (e.g., SSLK-14-14)
shown on tube, sold separately. All
products shown smaller than actual size.
OMEGA®miniature and
standard protection tubes are
available in 316 stainless steel
and Inconel 600 nickel alloy.
Tubes are available either opened
at both ends or with one end
closed. Standard length available
from stock is 150 mm (6");
however, practically any length tube
is available on short delivery.
OMEGA’s protection tubes are
intended for use with OMEGA’s
fine or heavy gage thermocouples
and ceramic insulators, as well as
OMEGA’s standard thermocouples
made from OMEGACLAD
®
thermocouple wire. These items
are shown in Section A of this
catalog. Bare wire thermocouples
can be insulated using
OMEGATITE®ceramic insulators
as well as the insulators used in
replacement elements.
OMEGA’s protection tubes can be
conveniently secured into pipes,
vessels, and chambers
by using OMEGALOK
®
compression fittings.
MOST POPULAR MODELS HIGHLIGHTED!
To Order (Specify Model Number)
Open End Closed End Price per
OD* ID* Price per First Price per First Add'l
Model No. Material mm (in) mm (in)
SS-116SS-18SS-316SS-14SS-516SS-38SS-716SS-12INC-116INC-18INC-316INC-14INC-516INC-38INC-716INC-12-
Tolerance of OD is ±0.13 mm (0.005"). Tolerance of ID is the same as the tolerance
*
of OD ±15% of the wall thickness.
† Consult Sales for lengths over 10'.
Ordering Example: SS-14-6CLOSED, closed end 6.0 mm (1⁄4") OD 316 SS protection tube,
150 mm (6") long, $6.00 + 2.50 = $8.50.
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Stainless 3.0 (1⁄8)
Steel 4.5 (3⁄16)
Stainless
Steel
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Inconel 1.5 (1⁄16)
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Inconel
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Closed one end “CLOSED”; Opened “OPEN”
Length in inches, 6" standard
316 1.5 (1⁄16)
316
6.0 (
8.0 (
9.5 (
11.0 (
12.5 (
1
⁄4)
5
⁄16)
3
⁄8)
7
1
600 3.0 (1⁄8)
3
4.5 (
⁄16)
1
6.0 (
⁄4)
600
8.0 (
9.5 (
11.0 (
12.5 (
5
⁄16)
3
⁄8)
7
1
1.32 (0.052)
1.78 (0.070)
3.35 (0.132)
4.93 (0.194)
6.60 (0.260)
8.13 (0.320)
⁄16)
9.40 (0.370)
⁄2)
10.9 (0.430)
1.32 (0.052)
1.78 (0.070)
3.35 (0.132)
5.33 (0.210)
6.27 (0.247)
7.75 (0.305)
⁄16)
9.32 (0.367)
⁄2)
10.9 (0.430)
A-129
150 mm (6") 150 mm (6") 25 mm (1")
$6.00 $8.50 $0.80
6.00 8.50 0.80
6.00 8.50 0.80
6.00 8.50 0.80
6.00 8.50 0.80
6.00 8.50 0.80
6.00 8.50 0.80
6.00 8.50 0.80
$7.00 $9.50 $1.10
7.00 9.50 1.10
7.00 9.50 1.10
7.00 9.50 1.10
7.00 9.50 1.10
7.00 9.50 1.10
8.50 11.00 1.10
9.50 12.00 1.10
†

Metal Protection Tubes
Thread (Either 3⁄4 or 1⁄2 NPT)
†
Length
PFA Coating
Cutaway is only to show tip
construction and thermocouple
installation. Tubes are supplied
completely spun closed.
Available.
Consult Sales
Length
A
MOST POPULAR MODELS HIGHLIGHTED!
To Order (Specify Model Number)
Nominal 3⁄4" Schedule 40 Black Steel Pipe Nominal 1⁄2" Schedule 40 Black Steel Pipe
(0.824" ID x 1.050" OD) (0.622" ID x 0.840" OD)
Thread Length mm (in) Model Number Price Thread Length mm (in) Model Number Price
3
⁄4 NPT 300 (12) 3/4 - PTBS-12 $65
3
⁄4 NPT 450 (18) 3/4 - PTBS-18 84
3
⁄4 NPT 600 (24) 3/4 - PTBS-24 112
Nominal 3⁄4" Schedule 40-304 SS Pipe Nominal 1⁄2" Schedule 40-304 SS Pipe
(0.824" ID x 1.050" OD) (0.622" ID x 0.840" OD)
Thread Length mm (in) Model Number Price Thread Length mm (in) Model Number Price
3
⁄4 NPT 300 (12) 3/4 -PTSS-12 $95
3
⁄4 NPT 450 (18) 3/4 -PTSS-18 125
3
⁄4 NPT 600 (24) 3/4 -PTSS-24 135
Technical Data
Male NPT thread on one end, spun closed on the other end
Max Continuous
Material
304SS
Operating Temp Cold Hot
900°C
(1650°F)
Black 650°C
Steel (1200°F) and magnesium
† Other lengths and materials available, consult Sales
Department.
Ordering Example: 3/4-PTSS-12, is a 300 mm (12")
long metal protection tube of 304 stainless steel with a
3
⁄4" thread, $95.
Mounting Flanges and Bushings
with standard NPT thread available
upon request. Consult Sales for pricing.
Mech. Strength
Excellent Fair
Excellent Good
1
⁄2 NPT 300 (12) 1/2- PTBS-12 $60
1
⁄2 NPT 450 (18) 1/2- PTBS-18 79
1
⁄2 NPT 600 (24) 1/2- PTBS-24 95
1
⁄2 NPT 300 (12) 1/2- PTSS-12 $80
1
⁄2 NPT 450 (18) 1/2- PTSS-18 120
1
⁄2 NPT 600 (24) 1/2- PTSS-24 130
Applications Remarks
Food processing, dairy
products, petroleum
products, mild acids, alkalies
Molten babbit, tin, lead
Embrittles in 425°C (800°F)
to 760°C (400°F) range
Low cost
Discount Schedule
1–10 Units . . . . . . . . . . . . .Net Quantity discount applies
11–24 Units . . . . . . . . . . .10% to like tubes. Other sizes,
25–100 Units . . . . . . . . . .20% materials and configurations
101 and up . . . .Consult Sales by quotation.
A-130

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