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CO (Composite)
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  1. CO Specifications (pdf - 72.3Kb)
  2. CO Min-Max Table (pdf - 131.4Kb)
  3. CO Installation Guide (pdf - 167.2Kb)
  4. Flat Seat CO Installation Guide (pdf - 118.8Kb)
  5. Angular CO Installation Guide (pdf - 121.1Kb)
  6. CE Marked CO Instructions (pdf - 49.1Kb)

The Oseco CO rupture disc is a composite style rupture disc.  It consists of a metal slotted top section, a slit-slot cover and a fluoropolymer or metal seal.  The metal top section controls the burst pressure and the seal isolates the top section from the process media and also prevent leakage.

The composite construction of the CO gives it its name, it may include options such as a metal seal, fluoropolymer liners, metal support rings and vacuum supports, all of which may be incorporated into the disc's configuration.

The CO rupture disc is available in both 30º angular seat (CO) and the flat seat designs, (F)CO.  The patented, optional "tear drop" feature of the CO reduces the possibility of fragmentation.  The CO is excellent for liquid, gas or vapor service applications.  For best results, the CO should not be exposed to pressures in excess of 80% of its stamped burst pressure.

  • Standard sizes available are 11/16"-24". Consult Oseco for other available sizes
  • Pressure ranges are 3 psig to 2000 psig.
  • Standard materials for the CO rupture disc: 316 Stainless Steel, Nickel 200/201, Inconel®-600 and Monel®-400. Oseco uses quality PFA fluoropolymer. Consult factory for additional materials.
  • If the CO rupture disc is subjected to vacuum conditions, it is necessary to have a vacuum support to complement the rupture disc
  • Excellent for static or high-cycling service