性能

  • 気相・液相・混合流体兼用
  • 破裂圧力の60%まで運転可能
  • ダメージ安全率 1(ダメージがある場合表示破裂圧力の1倍以下で破裂する)
  • 圧力機器指令” CE” マーク及びその他国際証書対応
  • BS&B 独占技術

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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 80 100 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 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%

Accessories

BS&B supplies many of the accessories required to safely and conveniently install our overpressure relief devices and complementary products. Through our professional team and global network of sales engineers and procurement personnel, we are able to provide the highest quality accessory products to meet your installation requirements.

QDR
Saf-T-Change Quick Disk Replacement (QDR)

After activation, the replacement disk is quickly slid into place. Saving hours of lost production due to blown rupture disks.

TellTale_Assemblies
Tell-Tale Assemblies & Excess Flow Valves/Gauges

A gauge tap in the outlet flange of the safety head may be considered when the safety head is installed in a vertical position.

Spares
Spare Safety Heads & Cap Screws

Jackscrews
Jackscrews

When activated, the jackscrews effectively separate the flanges, providing adequate clearance to remove or insert a safety head and external gaskets.

Lug_Eyebolts
Lifting Lug Eye Bolts

Eye bolts are recommended when weight and/or accessibility is a factor in lifting safety heads.

Baffle_Plate
Baffle Plate

When a safety head is free-vented to atmosphere, a baffle plate may be considered to disperse overpressure and absorb recoil.

Product Literature

Bio-Saf Series
Saf-T-Change™ QDR Rupture Disk Replacement System
Burst Alert Sensors
Detec Saf Alarm System – Burst Disk Monitor

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 80 100 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 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%

Accessories

BS&B supplies many of the accessories required to safely and conveniently install our overpressure relief devices and complementary products. Through our professional team and global network of sales engineers and procurement personnel, we are able to provide the highest quality accessory products to meet your installation requirements.

QDR
Saf-T-Change Quick Disk Replacement (QDR)

After activation, the replacement disk is quickly slid into place. Saving hours of lost production due to blown rupture disks.

TellTale_Assemblies
Tell-Tale Assemblies & Excess Flow Valves/Gauges

A gauge tap in the outlet flange of the safety head may be considered when the safety head is installed in a vertical position.

Spares
Spare Safety Heads & Cap Screws

Jackscrews
Jackscrews

When activated, the jackscrews effectively separate the flanges, providing adequate clearance to remove or insert a safety head and external gaskets.

Lug_Eyebolts
Lifting Lug Eye Bolts

Eye bolts are recommended when weight and/or accessibility is a factor in lifting safety heads.

Baffle_Plate
Baffle Plate

When a safety head is free-vented to atmosphere, a baffle plate may be considered to disperse overpressure and absorb recoil.

Product Literature

Bio-Saf Series
Saf-T-Change™ QDR Rupture Disk Replacement System
Burst Alert Sensors
Detec Saf Alarm System – Burst Disk Monitor