001 Front Cover

Straight Thermocouple Assemblies * Double Tube - Types B, R & S

The Richards Double Tube Thermocouple Assemblies are designed for severe service applications and molten glass furnaces' The double tube assemblies with a metal outer tube are for applications where mechanical damage and thermal shock to the ther- mocouple is a problem. The double tube assemblies, which have a Silicon Carbide outer tube, are for applications where thermal shock and flame contact is a problem. Double ceramic tube assemblies are for extra protection against corrosive atmospheres. We offer many other combinations of double tubes which we could not list in this catalog due to space limitations. Richards double tube assemblies can be made from any type of metal or ceramic tube, which is available. ? ruot", tf you would like to order a Type B, or Type R assembty, just substitute the S with a B or R in the part numbers listed on this page. Triple tube assemblies are also available.

Alumina

Alumina

98.8% Aluminum Oxide Construction- Single tube, O.D . 11116" (17.5mm) 112" x314" NPT steel fitting.

98.8% Aluminum Oxide Construction- Single tube, O.D. 3/8" (9.5mm) Cemented

24 24S5-APO6.AP11 F.*.SH

Alumina

Alumina

98.8% Aluminum Oxide Construction- Single tube, O.D . 1" (25.4mm) 314" x 1" NPT steel fitting. Silicon Carbide 90.0% Silicon Carbide , 9"/" Silicon Dioxide Construction- Single tube, O.D. 1 314" (44.Smm) 2.0" NPT Machined Steel Bushing.

98.8% Aluminum Oxide Construction- Single tube, O.D . 11116" (17.5mm) Cemented

24 24S5.AP11.AP1 6F.-.SH

Alumina

98.8% Aluminum Oxide Construction- Single tube, O.D. 11116" (1 7.5mm) 112" x314" NPT steel fitting. Mullite Porcelain 63.5 % Aluminum Oxide, balance Silicon Dioxide Construction- Single tube, O.D . 11116" (17.Smm) 112" x314" NPT steel fitting. Mullite Porcelain 63.5 % Aluminum Oxide, balance Silicon Dioxide Construction- Single tube, O.D. 11116" (17.Smm) 112" x314" NPT steel fitting. Mullite Porcelain 63.5 % Aluminum Oxide, balance Silicon Dioxide Construction- Single tube, O.D. 3/8" (9.5mm) Cemented Mullite Porcelain 63.5 % Aluminum Oxide, balance Silicon Dioxide Construction- Single tube, O.D . 11116" (17.5mm) 1 12" x 314" NPT steel fitting. Mullite Porcelain 63.5 % Aluminum Oxide, balance Silicon Dioxide Construction- Single tube, O.D . 11116" (17.5mm) 112" x314" NPT steel fitting. Mullite Porcelain 63.5 % Aluminum Oxide, balance Silicon Dioxide Construction- Single tube, O.D. 11116" (17.5mm) 112" x314" NPT steel fitting.

24 24S5.AP11 F.SCB.-.SH

#7 Seamless Stainless Steel (446)

Chromi um 23-27"/o, Manganese 1 .5"/", Silicon 1 %, Nitrogen .25"/o, Carbon .2/", Sulphur .030"/", Phosphorous .040"/", lron (Balance)

24 24S5-P 11F-734XH-.-SH

Construction- 314" pipe, Extra heavy, Schedule B0

#9 Seamless Nickel Alloy (600)

Nickel 76o/", Chromiuml 5.5"/", lron 8o/", Manganese .5% Silicon .2"/", Copper .2% Carbon . 08%

24S5-P11 F-934-*-SH

24

Construction- 314" pipe, Schedule 40

Mullite Porcelain 63.5 % Aluminum Oxide, balance Silicon Dioxide Construction- Single tube, O.D . 11116" (17.5mm) 112" x314" NPT steel fitting. Silicon Carbide 90.0% Silicon Carbide, 9"/" Silicon Dioxide Construction- Single tube, O.D. 1 314" (44.5mm) 2.0" NPT Machined Steel Bushing. Silicon Carbide 90.0% Silicon Carbide, 9"/" Silicon Dioxide Construction- Single tube, O.D. 1 314" (44.5mm) FSC 1216 cast lron fitting/stainless steel screws Silicon Carbide, lsopressed 90.0% Silicon Carbide, 9"/" Silicon Dioxide Construction- Single tube, lsopressed over a 314" steel pipe. O.D . 2.0' (50.8mm)

I

24 24S5-P06-P11 F-*-SH

24 24S5-P11 F-SCB-*-SH

24 24S5-P11 F-SCP-.-SH

24 24S5-P11 F-SCl34-.-SH

.Add the required thermocouple Length (.) as the sufiix. Multiples of 6" (152.4mm) are in stock.

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