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Feeder expendable

Feeder expendable refractories are manufactured under licence to . This licence allows access to the designs and specifications of refractory parts for Emhart gob feeders and includes also the Emhart refractory formulations of 333, 315 and 311.

Feeder expendable refractories are manufactured under licence to . This licence allows access to the designs and specifications of refractory parts for Emhart gob feeders and includes also the Emhart refractory formulations of 333, 315 and 311.

Material

  • PSR-333 is the internationally renowned feeder expendable refractory material that combines long service life with excellent thermal shock properties.
  • PSR-333-FG is a derivative of PSR-333, re-formulated for the manufacture of thin-walled special shapes such as orifice rings.
  • PSR-315 combines a higher zirconia content with higher firing temperatures and offers enhanced corrosion characteristics for spout bowls and large diameter feeder tubes.
  • PSR-315-FG is a derivative of PSR-315, re-formulated for the manufacture of special long-life orifice rings.
  • PSR-311 is a high alumina composition used mainly for tubes and plungers in tableware manufacture where materials containing zirconia cause excessive initial seeding after refractory replacement.

Manufactured by the slip-casting process, all PSR feeder expendable compositions are direct bonded with strong ceramic bonds created at high firing temperatures without the use of added chemical reactants.

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