Excellent Thermal Shock
Resistance, Accurate Shapes
Material Specifications
The complex and precise shape of orifice rings places special
demands on the refractory material. In service, orifice rings
must be able to deliver good thermal shock resistance and
corrosion resistance to preserve their accurate shape.
Emhart Glass’ 311 material contains 91% Al2O3,
a high purity material, specifically designed for the fabrication
of complex shapes. Its close grained structure provides the
necessary corrosion resistance to complement its thermal shock
resistance. It has proven an excellent choice for shops with
frequent job changes. In applications where extended orifice
ring life is desired, Emhart Glass 314 and 315, bonded AZS
materials containing 20% Zirconia, provide excellent performance.
