MB™

低圧グラファイトディスク

 


性能

  • 気相・液相・混合流体兼用
  • 破裂圧力の80％まで運転可能（破裂誤差下限の85％まで）
  • 真空耐性あり(破裂圧力によってはバキュームサポートの取り付けが必要）
  • ASME “UD”スタンプ対応（製造範囲0%選定）
  • 圧力機器指令 “CE” マーク及びその他国際証書対応
  • オプション：フルオロポリマーコーティング
  • オプション：アーマーリング
  • オプション：断熱アッセンブリー
  • BS&B 独占技術

    • お問い合わせはこちらから

     

    Sizes & Pressures

    MB™ , MBV™, AMB™, AMBV™ Disk Specifications Minimum/Maximum Pressure with Rating at 72° (22°C)

    Disk Size Burst Pressure Disk Thickness ANSI Flange Rating DIN
    psig barg
    in mm min max min max in mm
    0.5 15 25 150 1.7 10.3 0.6  16 150 10/16
    0.75 20 25 150 1.7 10.3 0.6  16 150 10/16
    1 25 10 150 0.7 10.3 0.9 22 150 10/16
    1.5 40 7 150 0.5 10.3 0.9 22 150 10/16
    2 50 2 150 0.1 10.3 0.9 22 150 10/16
    3 80 1 150 0.1 10.3 0.9 22 150 10/16
    4 100 1 150 0.1 10.3 0.9 22 150 10/16
    6 150 1 150 0.1 10.3 0.9 22 150 10/16
    8 200 0.5 150 0.04 10.3 1.1 29 150 10/16
    10 250 0.25 125 0.02 8.6 1.5 38 150 10/16
    12 300 0.25 125 0.02 8.6 2 51 150 10/16
    14 350 0.25 100 0.02 6.9 2.3 57 150 10/16
    16 400 0.25 100 0.02 6.9 2.5 64 150 10/16
    18 450 0.25 100 0.02 6.9 2.8 70 150 10/16
    20 500 0.25 50 0.02 3.4 3 76 150 10/16
    24 600 0.25 50 0.02 3.4 3 76 150 10/16

    Burst Tolerance

    Marked Burst Pressure Burst Tolerance
    < 1 psig (0.07 barg) -0/+0.75 psig (0/0.05 barg)
    1 – 15 psig (0.07 barg < 1.03 barg) ± 0.75 psig (0.05 barg)
    > 15 psig (1.03 barg) ± 5%
    For sizing, see the BS&B website or contact BS&B for appropriate KR

    Example: If a Saf-T-Graf MB type disk is ordered with a 29 psig (2 bar) burst pressure, it will burst between 27.5 psig (1.9 bar) and 30.5 psig (2.1 bar). For reduced tolerances contact BS&B.

    Vacuum Support

    For Vacuum support order as MBV or AMBV (armored support). Vacuum support is necessary under the following application conditions:
    • Burst pressure is below 22 psig (1.52 barg) and full vacuum may be present (-14.5 psi / -1 barg)
    • Vacuum exceeds 30% of burst pressure. For example, a 10 psig (0.7 barg) burst pressure disk will experience a -3 psig (-0.2 barg) vacuum
    • Cycling between vacuum conditions and positive pressure may occur and burst pressure is below 22 psig (1.52 barg)
    • Vacuum supports are needed for disks rated below 22 psig (1.52 bar) and where a vacuum condition exists. Model MBV or AMBV vacuum supports are not required on 0.5 and 0.75 inch (15 and 20 mm) monobloc disks
    • Temperature ranges -100º to 400ºF (-73º to 205ºC). For further clarification on when to use a vacuum support, consult factory

    For venting capacities necessary for vacuum support click here.

    Armored Option

    Armor is recommended for all graphite disks for added safety and elimination of breakage during installation. Armor consists of a steel ring encircling the outside diameter of the graphite rupture disk.

    Armor is standard on disks with burst pressures in excess of 150 psig or to fit ANSI Class 300 / 600 flanges. Carbon steel armor is standard with 300 series stainless steel as an option. Armor is recommended for applications where lateral blow out / loss of containment represents a safety concern.

    Armor for disks sizes shown when rated pressures equal to or exceed values in the below chart.

    Size Burst Pressure
    in mm psig barg
    0.5-3 15-80 150 10.3
    4 100 100 6.9
    6-10 75 75 5.2
    12-24 50 50 3.5

    Product Literature

    Saf-T-Graf™ Graphite Disks
    Burst Alert Sensors
    Detec Saf Alarm System – Burst Disk Monitor

    Installations

    Saf-T-Graf™ Rupture Disk (Bursting Disc) Installation Instructions
    Burst Alert Sensor Installation Instruction
    Burst Alert Leak Dectector Installation Instruction

    Sizes & Pressures

    MB™ , MBV™, AMB™, AMBV™ Disk Specifications Minimum/Maximum Pressure with Rating at 72° (22°C)

    Disk Size Burst Pressure Disk Thickness ANSI Flange Rating DIN
    psig barg
    in mm min max min max in mm
    0.5 15 25 150 1.7 10.3 0.6  16 150 10/16
    0.75 20 25 150 1.7 10.3 0.6  16 150 10/16
    1 25 10 150 0.7 10.3 0.9 22 150 10/16
    1.5 40 7 150 0.5 10.3 0.9 22 150 10/16
    2 50 2 150 0.1 10.3 0.9 22 150 10/16
    3 80 1 150 0.1 10.3 0.9 22 150 10/16
    4 100 1 150 0.1 10.3 0.9 22 150 10/16
    6 150 1 150 0.1 10.3 0.9 22 150 10/16
    8 200 0.5 150 0.04 10.3 1.1 29 150 10/16
    10 250 0.25 125 0.02 8.6 1.5 38 150 10/16
    12 300 0.25 125 0.02 8.6 2 51 150 10/16
    14 350 0.25 100 0.02 6.9 2.3 57 150 10/16
    16 400 0.25 100 0.02 6.9 2.5 64 150 10/16
    18 450 0.25 100 0.02 6.9 2.8 70 150 10/16
    20 500 0.25 50 0.02 3.4 3 76 150 10/16
    24 600 0.25 50 0.02 3.4 3 76 150 10/16

    Burst Tolerance

    Marked Burst Pressure Burst Tolerance
    < 1 psig (0.07 barg) -0/+0.75 psig (0/0.05 barg)
    1 – 15 psig (0.07 barg < 1.03 barg) ± 0.75 psig (0.05 barg)
    > 15 psig (1.03 barg) ± 5%
    For sizing, see the BS&B website or contact BS&B for appropriate KR

    Example: If a Saf-T-Graf MB type disk is ordered with a 29 psig (2 bar) burst pressure, it will burst between 27.5 psig (1.9 bar) and 30.5 psig (2.1 bar). For reduced tolerances contact BS&B.

    Vacuum Support

    For Vacuum support order as MBV or AMBV (armored support). Vacuum support is necessary under the following application conditions:
    • Burst pressure is below 22 psig (1.52 barg) and full vacuum may be present (-14.5 psi / -1 barg)
    • Vacuum exceeds 30% of burst pressure. For example, a 10 psig (0.7 barg) burst pressure disk will experience a -3 psig (-0.2 barg) vacuum
    • Cycling between vacuum conditions and positive pressure may occur and burst pressure is below 22 psig (1.52 barg)
    • Vacuum supports are needed for disks rated below 22 psig (1.52 bar) and where a vacuum condition exists. Model MBV or AMBV vacuum supports are not required on 0.5 and 0.75 inch (15 and 20 mm) monobloc disks
    • Temperature ranges -100º to 400ºF (-73º to 205ºC). For further clarification on when to use a vacuum support, consult factory

    For venting capacities necessary for vacuum support click here.

    Armored Option

    Armor is recommended for all graphite disks for added safety and elimination of breakage during installation. Armor consists of a steel ring encircling the outside diameter of the graphite rupture disk.

    Armor is standard on disks with burst pressures in excess of 150 psig or to fit ANSI Class 300 / 600 flanges. Carbon steel armor is standard with 300 series stainless steel as an option. Armor is recommended for applications where lateral blow out / loss of containment represents a safety concern.

    Armor for disks sizes shown when rated pressures equal to or exceed values in the below chart.

    Size Burst Pressure
    in mm psig barg
    0.5-3 15-80 150 10.3
    4 100 100 6.9
    6-10 75 75 5.2
    12-24 50 50 3.5

    Product Literature

    Saf-T-Graf™ Graphite Disks
    Burst Alert Sensors
    Detec Saf Alarm System – Burst Disk Monitor

    Installations

    Saf-T-Graf™ Rupture Disk (Bursting Disc) Installation Instructions
    Burst Alert Sensor Installation Instruction
    Burst Alert Leak Dectector Installation Instruction