SKr™

低流れ抵抗反転ドーム形/逆作動破裂板


性能

  • 気相・液相・混合流体兼用
  • 破裂圧力の90％まで運転可能（破裂誤差下限の95％まで）
  • 破片飛散なし、安全弁一次側設置の推奨製品
  • 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）
  • 周期的に圧力変動する運転状況に適している
  • 真空耐性あり
  • ASME “UD”スタンプ対応（製造範囲0%/-5%/-10%選定）
  • 圧力機器指令 “CE” マーク及びその他国際証書対応。 特許6321582, 6178983, 6446653, 5996605 申請中

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Sizes & Pressures

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

Disk Size Nickel Alloy 200 Monel® Alloy 400 Inconel® Alloy 600 Hastelloy® Alloy C-276 and 316SS Tantalum Titanium
in mm psig barg psig barg psig barg psig barg psig barg psig barg
min max min max min max min max min max min max min max min max min max min max min max min max
0.75 20 55 500 3.79 34.47 60 500 4.14 34.47 60 500 4.14 34.47 60 500 4.14 34.47 55 500 3.79 34.47 90 500 6.20 34.47
1 25 55 500 3.79 34.47 60 500 4.14 34.47 60 500 4.14 34.47 60 500 4.14 34.47 55 500 3.79 34.47 90 500 6.20 34.47
1.5 40 40 500 2.76 34.47 45 500 3.10 34.47 45 500 3.10 34.47 45 500 3.10 34.47 40 500 2.76 34.47 60 500 4.14 34.47
2 50 25 500 1.72 34.47 30 500 2.07 34.47 30 500 2.07 34.47 30 500 2.07 34.47 25 500 1.72 34.47 35 500 2.41 34.47
3 80 20 500 1.38 34.47 22 500 1.52 34.47 22 500 1.52 34.47 25 500 1.72 34.47 20 500 1.38 34.47 25 500 1.72 34.47
4 100 16 500 1.10 34.47 18 500 1.24 34.47 18 500 1.24 34.47 20 500 1.38 34.47 16 500 1.10 34.47 20 500 1.38 34.47
6 150 15 261 1.03 18.00 15 261 1.03 18.00 15 261 1.03 18.00 20 261 1.38 18.00 15 261 1.03 18.00 20 261 1.38 18.00
8 200 15 150 1.03 13.79 15 200 1.03 13.79 15 200 1.03 13.79 20 200 1.38 13.79 15 200 1.03 13.79 20 200 1.38 13.79
10 250 11 150 0.76 10.34 11 150 0.76 10.34 11 150 0.76 10.34 11 150 0.76 10.34 15 150 1.03 10.34 20 150 1.38 10.34
12 300 9 110 0.62 7.58 9 110 0.62 7.58 9 110 0.62 7.58 9 110 0.62 7.58 15 110 1.03 7.58 20 110 1.38 7.58
24 600 Consult BS&B

Note: Hastelloy® is a trademark of Haynes International Inc. Monel® and Inconel® are registered trademarks of Special Metals Corporation and its subsidiaries. Other materials available on request.

Burst Tolerance

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

Safety Heads

SRI-7RS Safety Head
SRI-7RS
Safety Head
SRB-7RS Safety Head
SRB-7RS
Safety Head
SRB-7FS Safety Head
SRB-7FS
Safety Head
S90-7R Safety Head
S90-7R
Safety Head
SPR-7R Safety Head
SPR-7R
Safety Head
SR-7R Safety Head
SR-7R
Safety Head

Sensors

Burst Alert Sensors (BAS+)
Round or Square
Leak Detector Alert Sensors (LDAS+) Round or Square

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.

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.

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.

Spare Safety Heads & Cap Screws

Jackscrews

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

Lifting Lug Eye Bolts

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

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

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

Installations

Sta-Saf™ System Installation Instructions
Sigma EXL™, Sigma™, SKR™, and LPS™ Installation Instructions
Burst Alert Sensor Installation Instruction
Burst Alert Leak Dectector Installation Instruction

Sizes & Pressures

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

Disk Size Nickel Alloy 200 Monel® Alloy 400 Inconel® Alloy 600 Hastelloy® Alloy C-276 and 316SS Tantalum Titanium
in mm psig barg psig barg psig barg psig barg psig barg psig barg
min max min max min max min max min max min max min max min max min max min max min max min max
0.75 20 55 500 3.79 34.47 60 500 4.14 34.47 60 500 4.14 34.47 60 500 4.14 34.47 55 500 3.79 34.47 90 500 6.20 34.47
1 25 55 500 3.79 34.47 60 500 4.14 34.47 60 500 4.14 34.47 60 500 4.14 34.47 55 500 3.79 34.47 90 500 6.20 34.47
1.5 40 40 500 2.76 34.47 45 500 3.10 34.47 45 500 3.10 34.47 45 500 3.10 34.47 40 500 2.76 34.47 60 500 4.14 34.47
2 50 25 500 1.72 34.47 30 500 2.07 34.47 30 500 2.07 34.47 30 500 2.07 34.47 25 500 1.72 34.47 35 500 2.41 34.47
3 80 20 500 1.38 34.47 22 500 1.52 34.47 22 500 1.52 34.47 25 500 1.72 34.47 20 500 1.38 34.47 25 500 1.72 34.47
4 100 16 500 1.10 34.47 18 500 1.24 34.47 18 500 1.24 34.47 20 500 1.38 34.47 16 500 1.10 34.47 20 500 1.38 34.47
6 150 15 261 1.03 18.00 15 261 1.03 18.00 15 261 1.03 18.00 20 261 1.38 18.00 15 261 1.03 18.00 20 261 1.38 18.00
8 200 15 150 1.03 13.79 15 200 1.03 13.79 15 200 1.03 13.79 20 200 1.38 13.79 15 200 1.03 13.79 20 200 1.38 13.79
10 250 11 150 0.76 10.34 11 150 0.76 10.34 11 150 0.76 10.34 11 150 0.76 10.34 15 150 1.03 10.34 20 150 1.38 10.34
12 300 9 110 0.62 7.58 9 110 0.62 7.58 9 110 0.62 7.58 9 110 0.62 7.58 15 110 1.03 7.58 20 110 1.38 7.58
24 600 Consult BS&B

Note: Hastelloy® is a trademark of Haynes International Inc. Monel® and Inconel® are registered trademarks of Special Metals Corporation and its subsidiaries. Other materials available on request.

Burst Tolerance

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

Safety Heads

SRI-7RS Safety Head
SRI-7RS
Safety Head
SRB-7RS Safety Head
SRB-7RS
Safety Head
SRB-7FS Safety Head
SRB-7FS
Safety Head
S90-7R Safety Head
S90-7R
Safety Head
SPR-7R Safety Head
SPR-7R
Safety Head
SR-7R Safety Head
SR-7R
Safety Head

Sensors

Burst Alert Sensors (BAS+)
Round or Square
Leak Detector Alert Sensors (LDAS+) Round or Square

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.

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.

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.

Spare Safety Heads & Cap Screws

Jackscrews

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

Lifting Lug Eye Bolts

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

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

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

Installations

Sta-Saf™ System Installation Instructions
Sigma EXL™, Sigma™, SKR™, and LPS™ Installation Instructions
Burst Alert Sensor Installation Instruction
Burst Alert Leak Dectector Installation Instruction

概要

SKr™反転型破裂板はディスクの下流側にあるドームの周縁部にスコア溝が加工されています。設定圧力でドームが反転し、周縁部のスコア溝でせん断破裂開口します。SKr™反転型破裂板は最新のSAF技術 (Structual Apex Forming、構造的向点成形加工) により非常に低い破裂圧力と優れた開放特性を実現しています。
ディスクの下流側にあるエネルギー吸収ヒンジと組合わせた設計により、液体及びガス体万能で優れたフロー特性を有しています。
ヒンジとホルダーのボアが相互作用し、SKr™反転型破裂板破裂板を開放状態にすることで破片飛散を防ぎます。