Sprue Bushings and Intermediate Tubes



Sprue bushings and intermediate tubes insulate the stalk tube both thermally and mechanically during low-pressure casting to ensure that the metal stays liquid. This eliminates the need for additional heating.

Pyrotek Offerings

Pyrotek offers sprue bushings and intermediate tube assemblies in a variety of materials.

  • Low thermal conductivity
  • Nonwetting
  • Resistant to thermal shock
  • Good insulating properties