LSR-S™ Sanitary Reverse Buckling Rupture Disk

Low Pressure Scored Reverse Buckling Rupture Disk


LSR-S Rupture Disk

Performance Features

  • Designed for gas, liquid and multi-phase service.
  • Damage safety ratio < 1.0.
  • Ideal for CIP / SIP service.
  • Integral sanitary gaskets.
  • 8 to 16 micro-inch typical disk surface finish.
  • Suitable for operating pressure to 90% of the minimum burst pressure.
  • Install to ASME BPE / DIN 32676 Series C sanitary fittings.
  • Available with ASME “UD” (select 0%, -5%, -10% Manufacturing Design Range).
  • Available with “CE” marking, European Pressure Equipment Directive compliance
  • Designed for non-fragmentation.
  • Withstands full vacuum at all available burst pressures.
  • Available SAS™ (Sanitary Alert Sensor) for burst indication or LDS (Leak Detector Sensor) with leak sensing capability.

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  • Sizes & Pressures
  • Burst Tolerance/Sustainability
  • Safety Heads & Sensors
  • Documentation

Sizes & Pressures

LSR-S™ Disk Specifications Minimum/Maximum Pressure with Rating at 72° (22°C)

Disk Size 316SS Overall Height OD
min max
in mm in mm in mm in mm in mm
1 25 18 300 1.24 20.7 1.62 41 1.98 50.3

Other sizes and burst pressures may be available - consult BS&B

Burst Tolerance

Specified Burst Pressure Burst Tolerance
psig barg
28 and higer 1.9 and higher ± 5%
20 to 28 1.4 to 1.9 ± 7%
10 to 20 0.7 to 1.4 ± 10%
<10 < 0.7 ± 15%
Alternate: < 40 < 2.76 ± 2 psig (0.138 barg)

Product Literature

LSR-S Reverse Buckling Rupture Disk

Installations

LSR-S Installation Instruction