性能

  • フランジのボルトサークル内に収まり、取り付け、取り外しが容易なインサートタイプのホルダー
  • 事前にトルクをかけられたキャップスクリューが、コンパニオン・フランジ・ボルトとは別に独立してホルダー内のラプチャー・ディスクをクランプするため、定期メンテナンス時の取り外し、検査、および再取り付けが可能
  • J ボルトは、プロセス側フランジの外周に開けられた穴と接合することにより、ホルダーが必要な方向に確実に取り付けられるようにします
  • ホルダー内の位置決めピンが破裂板の位置決めホールと接合する事により、破裂板のセンタリングと正しい取付け方向を確保
  • セーフティヘッドの側面に刻印されているフロー矢印は、正しいフロー方向を示します
  • ホルダー内側座面に独自の「バイトシール」を施しており、破裂板とホルダーのプロセス側の間のシール性を最適化し、10^-6cc/s He 以上の気密性を実現
  • 入口または出口のいずれかにオプションでタップ追加工が可能で、監視デバイスやセンサーの設置が可能
  • フランジ付き配管接続に使用。レイズドフェイス、リングジョイント、その他複数のフランジ定格および配管規格に対応した設計
  • ラプチャーディスクのドーム部は、配管システムに設置される際の損傷を避けるため、ホルダー内で完全に保護されています
  • トルク耐性のあるバージョンも利用可能、NF-7RS-TR をご指定下さい
  • ダブルディスクアセンブリーとしても利用可能

お問い合わせはこちらから

 

Sizes & Pressures

NF-7RS™ Safety Head Dimensions

Disk Size Safety Head Flange Rating Overall Height Outside Dimensions Shape
in mm ANSI DIN JIS in mm in mm
1 25 150 6 1.5 38 2.6 67 square
300/600 10/16/25/40 10/16/20/30/40 1.5 38 2.9 73 square
1.5 40 150 10/16/20 1.7 43 3.4 86 square
300/600 10/16/25/40 30/40 1.7 43 3.7 95 square
2 50 150/300/600 10/16/25/40 10/16/20/30/40 1.9 48 4.1 104 square
3 80 150/300/600 10/16/25/40 10/16/20/40 2.2 55 5.2 133 square
10 2.2 55 5.2 132 square
4 100 150/300 10/16/25/40 16/20/30/40 2.9 73 6.2 158 square
10 2.9 73 6.2 158 square
600 2.6 65 7.6 192 round
6 150 150/300 10/16/25/40 10/30/40 3.6 92 9.8 248 round
600 4.5 114 10.4 264 round
8 200 150/300 3.8 97 12.0 305 round
10 250 150/300 4.3 110 14.1 359 round
12 300 150 4.8 121 16.0 406 round
300 5.3 133 16.5 419 round
14 350 150 5.3 133 17.8 451 round
300 5.9 149 19.6 483 round
16 400 150 6.4 162 20.1 511 round
300 7.1 181 21.1 536 round
18 450 150 7.4 187 22.8 578 round
300 7.9 200 23.4 594 round
20 500 150 8.4 241 24.8 629 round
300 8.6 219 25.6 651 round
24 600 150 10.3 260 29.5 749 round
300 10.8 273 30.4 772 round

Standard Materials

316 stainless steel and carbon steel.

Also available Monel® alloy 400, Inconel® alloy 600, Hastelloy® alloy C and C-276, aluminum, and titanium.

Torque Resistant Safety Head Option

The Type TR™ Series torque resistant safety head option offers the identical performance and flow characteristics valued from standard BS&B safety heads. The only difference – the TR Series Safety Heads are designed with a wider seating surface to be used with metal spiral wound gaskets at the flange. This distinct safety feature protects rupture disks from situations where plant personnel may overtorque rupture disks within piping systems.

Because of the wider seating surface of the TR Series Safety Head, the load is distributed over a much broader area reducing the influence of excessive torque transmitted to the disk.

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

Nu-Saf™ Series Scored Forward Acting Rupture Disks
Burst Alert Sensors
Detec Saf Alarm System – Burst Disk Monitor

Sizes & Pressures

NF-7RS™ Safety Head Dimensions

Disk Size Safety Head Flange Rating Overall Height Outside Dimensions Shape
in mm ANSI DIN JIS in mm in mm
1 25 150 6 1.5 38 2.6 67 square
300/600 10/16/25/40 10/16/20/30/40 1.5 38 2.9 73 square
1.5 40 150 10/16/20 1.7 43 3.4 86 square
300/600 10/16/25/40 30/40 1.7 43 3.7 95 square
2 50 150/300/600 10/16/25/40 10/16/20/30/40 1.9 48 4.1 104 square
3 80 150/300/600 10/16/25/40 10/16/20/40 2.2 55 5.2 133 square
10 2.2 55 5.2 132 square
4 100 150/300 10/16/25/40 16/20/30/40 2.9 73 6.2 158 square
10 2.9 73 6.2 158 square
600 2.6 65 7.6 192 round
6 150 150/300 10/16/25/40 10/30/40 3.6 92 9.8 248 round
600 4.5 114 10.4 264 round
8 200 150/300 3.8 97 12.0 305 round
10 250 150/300 4.3 110 14.1 359 round
12 300 150 4.8 121 16.0 406 round
300 5.3 133 16.5 419 round
14 350 150 5.3 133 17.8 451 round
300 5.9 149 19.6 483 round
16 400 150 6.4 162 20.1 511 round
300 7.1 181 21.1 536 round
18 450 150 7.4 187 22.8 578 round
300 7.9 200 23.4 594 round
20 500 150 8.4 241 24.8 629 round
300 8.6 219 25.6 651 round
24 600 150 10.3 260 29.5 749 round
300 10.8 273 30.4 772 round

Standard Materials

316 stainless steel and carbon steel.

Also available Monel® alloy 400, Inconel® alloy 600, Hastelloy® alloy C and C-276, aluminum, and titanium.

Torque Resistant Safety Head Option

The Type TR™ Series torque resistant safety head option offers the identical performance and flow characteristics valued from standard BS&B safety heads. The only difference – the TR Series Safety Heads are designed with a wider seating surface to be used with metal spiral wound gaskets at the flange. This distinct safety feature protects rupture disks from situations where plant personnel may overtorque rupture disks within piping systems.

Because of the wider seating surface of the TR Series Safety Head, the load is distributed over a much broader area reducing the influence of excessive torque transmitted to the disk.

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

Nu-Saf™ Series Scored Forward Acting Rupture Disks
Burst Alert Sensors
Detec Saf Alarm System – Burst Disk Monitor