Type MRK - Reverse-acting with knifeblades

Type MRK - Reverse-acting with knifeblades

Description

The Fike MRK bursting disc is a reverse-acting disc that opens upon contact with a knifeblade assembly. The holder holddown flange or outlet contains a knifeblade assembly which faces the concave side of the bursting disc. Once reversal pressure is reached, the crown of the disc is reversed and the disc comes in contact with the knifeblade assembly and is cut open, providing instant pressure relief.

Features and Benefits

  • 3-sweep knifeblade design offers lower bursting pressures for a specific material
  • Will in all cases withstand backpressures in excess of its burst pressure
  • Operating ratio of 95%
  • Predetermined bursting patterns of the knifeblade design allow a non-fragmenting opening of the disc
  • Generally 3 to 5 times thicker than the standard conventional forward-acting disc of the same material and therefore offers better corrosion resistance