Orifice Rings Spouts Stirrers & Rotor Segments
Plungers Spout Assemblies Spout Insulation & Cements
Tubes Metering Spout System Forehearth Maintenance

Spout Assemblies
Shape Stability & Corrosion Resistance Material Specifications
For the spout assemblies’ spout covers and spout burner blocks, the materials 338 and 345 are used to provide the needed shape stability and resistance to thermal shock. Spout covers are designed with cells to hold ceramic fiber insulating board shapes which provide needed insulation.

  338 345
 
ZrO2 - 0
SiO2
 26.3 16.5
Al2O3
 71.4 82.6
TiO2 1.35 0.24
Fe2O3 0.78 0.27
CaO 0.03 0.03
MgO 0.04 0.02
K2O - 0.07
Na2O - 0.2
Other 0.10 0.07
Modulus
of Rupture (psi)		 2400 2150
Bulk Density (g/cc) 2.55 2.67
Apparent Porosity (%) 19 17.5
PCE 38 39
Thermal Expansion
(in/in/°F) 		2.8x10-6 3.0x10-6

Note: Data shown is subject to
normal deviation.



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