Conventional Pre-Bulged Rupture Discs

Conventional Pre-Bulged Rupture Discs

For Oilfield Pressure Relief Applications

Separator process vessels are known to experience overpressure conditions that could lead to dangerous, even catastrophic, events. The versatile Fike Conventional Pre-Bulged Discs (CPD) rupture disc provides for depressurization of vessels, emergency relief of processing equipment and disposal of vapors by vent. And the installation of the Fike CPD rupture disc can protect typical wellhead hook-ups when flow lines become plugged or if valves are inadvertently closed.

The CPD rupture disc has no moving parts, making it reliable under even severe operating conditions, and offers a sub-millisecond response time for critical pressure relief. The rugged Fike CPD rupture disc is ideal for pressure relief protection and pressure activation in many oil field applications, including separators, storage tanks, filtration systems, water knockouts and in wellhead protection.


  • Drilling
  • Cementing
  • Drill stem testing
  • Mud pumps
  • Zone isolation
  • Setting tools
  • Pump trucks
  • Completion
  • Perforating
  • Gravel pack
  • Stimulation
  • High pressure test units
  • Compressors
  • Wellhead protection
  • Separators
  • Heater treater
  • Dehydration systems
  • Filtration systems
  • Production tubing drains
  • Subsea
  • Storage tanks
  • Pipeline pumps


Design   Single Element, pre-bulged forward-acting
Size Range   1/4, 1, 1-1/2, 2 in
Burst Pressure Range   75 psig to 30,000 psig
Burst Pressure Tolerance  ± 5%
Materials  Inconel® 600, Nickel and Aluminum