SRX Rupture Disc

SRX Rupture Disc

Scored, Reverse-Acting, Low Burst Pressure

The reverse-acting, SRX rupture disc has a cross scored design for use with vapor services only. It offers a superior service life in heavy pulsating and cyclic duty, and performs reliably under less than ideal installation conditions.

  • The score configuration controls the disc opening and enables the disc to rupture without fragmentation.
  • Effective when used to isolate Safety Relief Valves
  • Will sustain process operating pressures as high as 90% of the stamped disc rating or 95% of the minimum burst pressure
  • Withstands full vacuum, or back pressure service in magnitudes equivalent to the stamped burst pressure.
  • Special seating configuration allows this rupture disc to perform reliably, even under less than ideal installation conditions.
  • All manufacturing ranges are below the specified burst pressure
  • Materials of construction include: 316/316L SST, Inconel®, Monel®, Nickel, and Hastelloy®. Protective coatings such as fluoropolymer and polyurethane are available to enhance corrosion resistance.
  • Effective in VALVEGUARD protection of expensive Pressure Relief Valves and Safety Relief Valves


Design Scored, Reverse-acting, Low Burst Pressure
Size Range 1 in to 24 in DN25 to DN600
Burst Pressure Range 27 psig to 820 psig 1.86 barg to 56.54 barg
Burst Pressure Tolerances ± 2 psig for burst pressures ≤ 40 psig
± 5% for burst pressures > 40 psig
stand. ± 10% / red. ± 0.15 barg for burst pressures > 1.50 barg and < 2.76 barg
stand. ± 10% / red. ± 5% for burst pressures ≥ 2.76 barg
Materials 316/316L SST, Nickel 200/201, Monel® 400, Inconel® 600 and Hastelloy® C276


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