TorqueFit Rupture Disks

TorqueFit Rupture Disks

Performance Features

  • BS&B Torquefit assemblies are leak-tight pressure relief devices
  • Components are assembled together using mechanical methods and application of torque provides leak tight seal
  • Rupture disk with press fit copper washer

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  • Sizes & Pressures
  • Burst Tolerance
  • Documentation

Sizes & Pressures

Torque Fit™ Disk Specifications Minimum/Maximum Pressure with Rating at 72° (22°C)

Disk Size FRB QRB Mini XT B
in mm psig barg psig barg psig barg psig barg
min max min max min max min max min max min max min max min max
0.25 6 250 850 17 59 800 17,000 55 1172 3000 20,000 207 1380 1500 30,000 103 2068
0.375 9 150 800 10 55 800 14,000 55 965 3000 20,000 207 1380 850 30,000 58.6 2068
0.5 13 80 675 5.5 47 500 10,500 34 725 3000 20,000 207 1380 625 30,000 43 2068
0.75 19 - - - - 350 5000 24 345 3000 20,000 207 1380 - - - -

Note: Screw thread pressure limits will determine actual maximum burst pressure capability. Consult BS&B.

Burst Tolerance

Marked Burst Pressure Burst Tolerance
≤ 40 psig (2.76 barg) ± 2 psig (0.138 barg)
> 40 psig (2.76 barg) ± 5%

Product Literature

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Installations

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