SRL Reverse-Acting Rupture Disc

Scored, Reverse-Acting, Low Burst Pressure Size Range 1 – 8 in 25-200 mm Burst Pressure Range 10 – 230 PSIG .69-15.86 BARG .70-16.17 KG/CM2 Tolerances ± 5% except 40 PSIG/2.7 BARG and below which is ± 2 PSIG / 0.14 BARG

This convenient one-piece, single membrane rupture disc is reverse-bulged and perimeter-scored to facilitate opening without knife blades.

  • Operates in both gas and liquid applications
  • Effective in the isolation of Safety Relief valves
  • Withstands full vacuum, without the aid of a vacuum support
  • Will sustain cyclic and pulsating pressures as high as 90% of the stamped disc rating
  • If damaged during normal installation, the SRL rupture disc will open at less than 1.5 times the stamped burst pressure
  • Special seating configuration allows SRL discs to perform reliably, even under less-than-ideal bolt-loading conditions
  • Effective in VALVEGUARD protection of expensive Pressure Relief Valves and Safety Relief Valves


  • Reactors
  • Liquid-Vapor Separators
  • Heat Exchangers
  • Acidic/Corrosive Service
  • Furnace
  • ValveGuard
  • Double Discs

Specs & Brochures