The OSECO PCR is a cross-scored reverse buckling rupture disk. Reversal occurs when the disk reaches the rated pressure and it opens along the score lines. Since there are no knife blades, the flow is unrestricted.

The PCR is excellent for relief valve isolation (gas/vapor service) and excels in extreme cycling or high vacuum/back-pressure applications.

OSECO PCR Rupture Disk

• Sizes available are 1” through 8”
• Standard materials are 316 Stainless Steel, Inconel-600, Monel-400, Nickel-200/201, and Aluminum. For highly corrosive applications Teflon liners are available on the process side of the PCR rupture disk.
• Designed for gas or vapor applications only
• Excellent service life in high cycle applications
• Excellent for vacuum service without an additional vacuum support
• Non-fragmenting design
• Excellent service life in applications operating up to 90% of the rated burst pressure
• Non-torque sensitive
• Burst Tolerance:
  + 5% for disk ratings > 40 psig
  + 2 psig for disks rated < 40 psig
• If damaged or installed incorrectly, the PCR will fail at a maximum of 1.5 times its rated pressure when the disk is free vented.
• Manufacturing Ranges:
  316 Stainless Steel: 5% & 10% Manufacturing Ranges are available.
  Inconel-600, Monel-400, Nickel-200/201, and Aluminum: 0%, 5%, & 10% Manufacturing Ranges are available. (Note: For a 0% Manufacturing Range, the total manufacturing range is placed on the minus side of the requested burst pressure.)
• Sensors that can be used with the OSECO PCR are the SVT, AMS, and AMSX.
• Holders: The PCR is most commonly used in the PRDI non-torque sensitive insert style holder. The PCR may also be used in the PRDI (P) pre-torqued holder as well as PRDH bolted holders.
• See the min/max chart to view minimum and maximum burst pressures for the PCR.

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PCR rupture disk today!