AV-ST™ Sanitary Rupture Disks

Flat Low Pressure Rupture Disk

AV-ST™ Sanitary Rupture Disks

Performance Features

  • Designed for gas, liquid and multi-phase service
  • Suitable for operating pressure to 60% of the minimum burst pressure
  • Damage safety ratio ≤ 1
  • Pressure Equipment Directive “CE” marking and/or other International Certifications
  • BS&B proprietary technology

Request a Quote

 

  • Sizes & Pressures
  • Burst Tolerance
  • Safety Heads & Sensors
  • Accessories
  • Documentation

Sizes & Pressures

AV-ST™ Positive Pressure Disk Specifications Minimum/Maximum Pressure with Rating at 72° (22°C)
Disk Size Burst Pressure Relief Area
psig barg
in mm min max min max
3 80 5  100 0.35 6.89 Full
4 100 5 100 0.35 6.89 Full
6 150 3 85 0.21 5.86 Full
8 200 3 85 0.21 4.48 Full
Note: Standard material 316 stainless steel. Other disk sizes, materials and burst pressures are available upon request - consult BS&B. FEP/PTFE liners are available on the process side of the disk in sizes from 2” (50mm) and above. Maximum temperature for 316ss is 750°F (399°C). Maximum temperature for FEP/PTFE is 500°F (260°C).

AV-ST™ Vacuum Relief Disk Specifications Minimum/Maximum Pressure with Rating at 72° (22°C)
Disk Size Burst Pressure Burst Range Relief Area
psig barg
in mm min max min max psig barg in2 cm2
3 80 3  10 0.2 0.7 ± 0.5 ± 0.4 2.0 13.1
4 100 2 10 0.1 0.7 ± 0.5 ± 0.4 3.6 23.1
6 150 1.5 6 0.1 0.4 ± 0.3 ± 0.02 5.9 38.3
8 200 1 6 0.1 0.4 ± 0.3 ± 0.02 9.3 59.7

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

Bio-Saf Series Rupture Disk Brochure

Installations

Sanitary Alert Sensor Installation Instructions