Richards Thermocouple and Temperature Sensor Catalog 16

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Protection tubes are typically made with a closed
tip and one threaded on the cold end, but they are also available with open ends and various threading options.
Open Tube Examples: The part number 601-YOBE-12 signifies a 1” O.D., Alloy 601, Open Both Ends, and no threads.
The part number 601-OBE-12 signifies a 1” O.D., Alloy 601, Open Both Ends, and one end threaded.
The part number 601-OBE2T-12 signifies a 1” O.D., Alloy 601, Open Both Ends, and both ends threaded.
Closed Tube Examples: The part number 601-12 signifies a 1” O.D., Alloy 601, closed one end, and one end threaded.
The part number 601-12-NT signifies a 1” O.D., Alloy 601, closed one end, and no threads.
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SP &
SPN Pointed
3/4” NPT Thread
1”
Pipe Size
3/4”
Pipe Size
1/2”
Pipe Size
3/8”
Pipe Size
1/8”
Pipe Size
1/4”
Pipe Size
! Note: Richards SP metal protection tubes are manufactured from drilled solid bar stock to maximize the wall thickness.
They are excellent for high temperature, severe service applications where extra stiffness and wear resistance are critical.
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8
Cast Iron
Coated
Cast Iron
Uncoated
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Metal Tubes - Nominal Pipe Threads (NPT)
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