Protection Tubes - Hexoloy

 

Hexoloy | Silicon carbide | Thermocouple tubes

Hexoloy® Silicon Carbide (SCHX) used as a thermocouple protection tube have a maximum service temperature of 3000°F (1650°C) in both oxidizing and corrosive atmospheres. It can also be used in chemicals including strong acids and bases. Hexoloy is chemically inert and has excellent thermal shock resistance ten times superior to Alumina thermocouple protection tube. This material is very hard, second only to diamonds, with excellent wear and abrasion resistance. It has five times the thermal conductivity of Alumina. Unlike other forms of silicon carbide tubes, Hexoloy® can be used as a single primary thermocouple protection tube since it is gas tight. Hexoloy has very high temperature strength and will not slump even under load at 3000°F (1650°C). Note: Platinum thermocouple elements can be used with a Hexoloy silicon carbide thermocouple protection tube if an Alumina inner tube is used as a liner. Various fittings can be mounted on the protection tube in order to install into your process equipment, see below.

Composition: 99% Sintered Fined Grain Green Alpha-Silicon Carbide.

Hexoloy Thermocouple Tube Specifications

  • Maximum Service Temperature of 3000°F or 1650°C
  • Excellent Resistance to Corrosion, Erosion and Wear
  • Outstanding Thermal Shock Resistance
  • Tube sizes from 3/8" to 1 1/4" O.D.
  • Available with Couplings, Hex Fittings, Steel Fittings, Sleeves, or Threaded Nipples.
  • Available with Cemented Support Collars.
Hexoloy Protection Tube | Plain
Plain Hexoloy Thermocouple Protection Tube
Part Number O.D.
Inches
I.D.
Inches
Mounting
(Plain Tube)
SCHX0604-* 3/8"
(9.5 mm)
1/4"
(6.4 mm)
Plain Tube
SCHX1006-* 5/8"
(15.9 mm)
3/8"
(9.5 mm)
Plain Tube
SCHX1208-* 3/4"
(19.1 mm)
1/2"
(12.7 mm)
Plain Tube
SCHX1608-* 1"
(25.4 mm)
1/2"
(12.7 mm)
Plain Tube
SCHX2012-* 1 1/4"
(31.8 mm)
3/4"
(19.1 mm)
Plain Tube
SCHX2014.75-* 1 1/4"
(31.8 mm)
.922"
(23.4 mm)
Plain Tube
SCHX2416-* 1 1/2"
(38.1 mm)
1"
(25.4 mm)
Plain Tube
Note: * Specify the protection tube length (P) in inches up to 54" max
Hexoloy Protection Tube | Steel Fitting
Plain Ceramic Thermocouple Protection Tube
Part Number O.D.
Inches
I.D.
Inches
Mounting
(Steel Fitting)
SCHX1006F-* 5/8"
(15.9 mm)
3/8"
(9.5 mm)
3/4" x 1/2" NPT
SCHX1208F-* 3/4"
(19.1 mm)
1/2"
(12.7 mm)
3/4" x 1/2" NPT
SCHX1608F-* 1"
(25.4 mm)
1/2"
(12.7 mm)
1" x 3/4" NPT
Note: * Specify the protection tube length (P) in inches up to 54" max
Hexoloy Protection Tube | Threaded Nipple
Plain Ceramic Thermocouple Protection Tube
Part Number O.D.
Inches
I.D.
Inches
Mounting
(Threaded Nipple)
SCHX1006N-* 5/8"
(15.9 mm)
3/8"
(9.5 mm)
3/4" NPT x 2 1/2" Long
SCHX1208N-* 3/4"
(19.1 mm)
1/2"
(12.7 mm)
3/4" NPT x 2 1/2" Long
SCHX1608N-* 1"
(25.4 mm)
1/2"
(12.7 mm)
1" NPT x 3" Long
Note: * Specify the protection tube length (P) in inches up to 54" max
Hexoloy Protection Tube | Double Tube | Fitting
Plain Ceramic Thermocouple Protection Tube
Part Number O.D.
Inches
I.D.
Inches
Mounting
(Steel Fitting)
AP06-SCHX1208F-* 3/4"
(19.1 mm)
1/2"
(12.7 mm)
Double Tube Assembly

Alumina Inner Tube With a Hexoloy Outer Tube

3/4" x 1/2" NPT
Note: * Specify the protection tube length (P) in inches up to 54" max