PROTECTING TUBES

CERAMIC

ceramic tubes

Example: 60-687-0-24" (Mullite 60, 7/16 x 11/16, Plain End Protecting Tube, 24" long).


PROTECTING TUBE PART NUMBER
A=End Option, D=Length
MATERIAL SIZE
I.D. x O.D.
MULLITE 60 3/16 x 1/4 60 - 250 - A - D
1/4 x 3/8 60 - 375 - A - D
3/8 x 1/2 60 - 500 - A - D
7/16 x 11/16 60 - 687 - A - D
3/4 x 1 60 - 1000 - A - D
1 x 1-1/4 60 - 1250 - A - D
1-1/4 x 2 60 - 2000 - A - D
ALUMINA 997 3/16 x 1/4 97 - 250 - A - D
1/4 x 3/8 97 - 375 - A - D
3/8 x 1/2 97 - 500 - A - D
7/16 x 11/16 97 - 687 - A - D
3/4 x 1 97 - 1000 - A - D
1 x 1-1/4 97 - 1250 - A - D
ALUMINA 998 3/16 x 1/4 98 - 250 - A - D
1/4 x 3/8 98 - 375 - A - D
3/8 x 1/2 98 - 500 - A - D
7/16 x 11/16 98 - 687 - A - D
3/4 x 1 98 - 1000 - A - D
1 x 1-1/4 98 - 1250 - A - D

Standard diameter tolerance for size variation and ou-of-roundness is +/-5% or 0.025" minimum.
Camber tolerance is 1/16" maximum per foot.


ORDER
CODE		 DESCRIPTION
0 Plain End
1 Ceramic Collar
0.250 Tube O.D. = 0.500 Collar O.D.
0.375 Tube O.D. = 0.687 Collar O.D.
0.500 Tube O.D. = 0.875 Collar O.D.
1.000 Tube O.D. = 1.250 Collar O.D.
1.250 Tube O.D. = 1.750 Collar O.D.
2 Steel Bushing*
1/2 NPT x 3/4 NPT
3 Brass Sleeve*
7/8 - 27 thread
4 Coupling
1 NPT (internal)
5 Steel Bushing
1 NPT x 1 NPT
6 - Length SS Support Tube
0.500 Max. Tube O.D. / Tube Size = 1/2 NPT
7 - Length SS Support Tube
0.687 Max. Tube O.D. / Tube Size = 3/4 NPT
8 - Length SS Support Tube
1.000 Max. Tube O.D. / Tube Size = 1 NPT
* Maximum tube size is 11/16" O.D.

For more information regarding Protecting Tubes and Thermowells
Consult your Marlin Catalog, pages D-0 to D-13.

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