Operating Limits:

 Pressure: ≤1.6MPa

 Temperature:-20 °C~180 °C

 Medium: oil or petroleum; water;base or alkali; organic solvent,et.  

 Material for rotating and static ring: carborundum-carborundum; impregnating resin; graqhite-carborundum

PS: Please send us drawings of the product in details  if you have any requirements in manufacturing details