LPS™
低圧切溝付き反転ドーム形/逆作動破裂板
性能
- 気相・液相・混合流体兼用
- 最低破裂圧力の90％まで運転可能
- 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）
- 真空耐性あり
- 背圧耐性を指定できます
- 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6178983, 6321582, 6446653, 6494074申請中
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Sizes & Pressures
LPS™ 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 | 316SS | ||||||||||||||||
| in | mm | 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 | ||
| 1 | 25 | 15 | 70 | 1.03 | 4.83 | 20 | 70 | 1.38 | 4.83 | 20 | 70 | 1.38 | 4.83 | 15 | 70 | 1.03 | 4.83 | 15 | 70 | 1.03 | 4.83 |
| 1.5 | 40 | 6 | 55 | 0.41 | 3.79 | 10 | 55 | 0.69 | 3.79 | 10 | 55 | 0.69 | 3.79 | 7 | 55 | 0.48 | 3.79 | 6 | 55 | 0.41 | 3.79 |
| 2 | 50 | 5 | 40 | 0.34 | 2.76 | 8 | 40 | 0.55 | 2.76 | 8 | 40 | 0.55 | 2.76 | 6 | 40 | 0.41 | 2.76 | 5 | 40 | 0.34 | 2.76 |
| 3 | 80 | 5 | 35 | 0.34 | 2.41 | 7 | 35 | 0.48 | 2.41 | 7 | 35 | 0.48 | 2.41 | 5 | 35 | 0.34 | 2.41 | 5 | 35 | 0.34 | 2.41 |
| 4 | 100 | 5 | 30 | .034 | 2.06 | 7 | 30 | 0.48 | 2.06 | 7 | 30 | 0.48 | 2.06 | 5 | 30 | 0.34 | 2.06 | 5 | 30 | 0.34 | 2.06 |
| 6 | 150 | 5 | 25 | 0.34 | 1.72 | 7 | 25 | 0.48 | 1.72 | 7 | 25 | 0.48 | 1.72 | 5 | 25 | 0.34 | 1.72 | 5 | 25 | 0.34 | 1.72 |
| 8 | 200 | 5 | 25 | 0.34 | 1.72 | 7 | 25 | 0.48 | 1.72 | 7 | 25 | 0.48 | 1.72 | 5 | 25 | 0.34 | 1.72 | 5 | 25 | 0.34 | 1.72 |
| 10 | 250 | 5 | 25 | 0.34 | 1.72 | 7 | 25 | 0.48 | 1.72 | 7 | 25 | 0.48 | 1.72 | 5 | 25 | 0.34 | 1.72 | 5 | 25 | 0.34 | 1.72 |
| 12 | 300 | 5 | 25 | 0.34 | 1.72 | 7 | 25 | 0.48 | 1.72 | 7 | 25 | 0.48 | 1.72 | 5 | 25 | 0.34 | 1.72 | 5 | 25 | 0.34 | 1.72 |
Consult BS&B for applications where the disk may be rated with a coincident temperature below 300°F (149°C) (176°F (80°C) for Hastelloy) but operated at a higher value. Special processing may be required.
Burst Tolerance
Burst tolerance is the +/- range of pressure over which a rupture disk (bursting disc) can be expected to burst.
| Specified Burst Pressure | Burst Tolerance | |
| psig | barg | |
|---|---|---|
| 28 and higer | 1.9 and higher | ± 5% |
| 20 to 28 | 1.4 to 1.9 | ± 7% |
| 10 to 20 | 0.7 to 1.4 | ± 10% |
| <10 | < 0.7 | ± 15% |
| Alternate: < 40 | < 2.76 | ± 2 psig (0.138 barg) |
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
Sizes & Pressures
LPS™ 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 | 316SS | ||||||||||||||||
| in | mm | 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 | ||
| 1 | 25 | 15 | 70 | 1.03 | 4.83 | 20 | 70 | 1.38 | 4.83 | 20 | 70 | 1.38 | 4.83 | 15 | 70 | 1.03 | 4.83 | 15 | 70 | 1.03 | 4.83 |
| 1.5 | 40 | 6 | 55 | 0.41 | 3.79 | 10 | 55 | 0.69 | 3.79 | 10 | 55 | 0.69 | 3.79 | 7 | 55 | 0.48 | 3.79 | 6 | 55 | 0.41 | 3.79 |
| 2 | 50 | 5 | 40 | 0.34 | 2.76 | 8 | 40 | 0.55 | 2.76 | 8 | 40 | 0.55 | 2.76 | 6 | 40 | 0.41 | 2.76 | 5 | 40 | 0.34 | 2.76 |
| 3 | 80 | 5 | 35 | 0.34 | 2.41 | 7 | 35 | 0.48 | 2.41 | 7 | 35 | 0.48 | 2.41 | 5 | 35 | 0.34 | 2.41 | 5 | 35 | 0.34 | 2.41 |
| 4 | 100 | 5 | 30 | .034 | 2.06 | 7 | 30 | 0.48 | 2.06 | 7 | 30 | 0.48 | 2.06 | 5 | 30 | 0.34 | 2.06 | 5 | 30 | 0.34 | 2.06 |
| 6 | 150 | 5 | 25 | 0.34 | 1.72 | 7 | 25 | 0.48 | 1.72 | 7 | 25 | 0.48 | 1.72 | 5 | 25 | 0.34 | 1.72 | 5 | 25 | 0.34 | 1.72 |
| 8 | 200 | 5 | 25 | 0.34 | 1.72 | 7 | 25 | 0.48 | 1.72 | 7 | 25 | 0.48 | 1.72 | 5 | 25 | 0.34 | 1.72 | 5 | 25 | 0.34 | 1.72 |
| 10 | 250 | 5 | 25 | 0.34 | 1.72 | 7 | 25 | 0.48 | 1.72 | 7 | 25 | 0.48 | 1.72 | 5 | 25 | 0.34 | 1.72 | 5 | 25 | 0.34 | 1.72 |
| 12 | 300 | 5 | 25 | 0.34 | 1.72 | 7 | 25 | 0.48 | 1.72 | 7 | 25 | 0.48 | 1.72 | 5 | 25 | 0.34 | 1.72 | 5 | 25 | 0.34 | 1.72 |
Consult BS&B for applications where the disk may be rated with a coincident temperature below 300°F (149°C) (176°F (80°C) for Hastelloy) but operated at a higher value. Special processing may be required.
Burst Tolerance
Burst tolerance is the +/- range of pressure over which a rupture disk (bursting disc) can be expected to burst.
| Specified Burst Pressure | Burst Tolerance | |
| psig | barg | |
|---|---|---|
| 28 and higer | 1.9 and higher | ± 5% |
| 20 to 28 | 1.4 to 1.9 | ± 7% |
| 10 to 20 | 0.7 to 1.4 | ± 10% |
| <10 | < 0.7 | ± 15% |
| Alternate: < 40 | < 2.76 | ± 2 psig (0.138 barg) |
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
概要
LPS 型破裂板は5 psig (0.35 barg) の低設定圧力に対応するように開発された反転型破裂板です。LPS 型破裂板はSRB-7RS®ホルダーと共に使用することで精度と信頼性が向上します。SAF技術（Structural Apex Forming,構造的向点成形加工）と特徴的で効率的な開口が低設定圧力を実現しています。