Graphite Rupture Disks Mono Type Features • The best choice for low and intermediate burst ratings • Available in nominal sizes 1/2” (13 mm) thru 24” (610 mm) diameters • Designed to fit industry standard flanges ASME B16.5, ISO and JIS • Burst ratings 0.25 psig (0.02 barg) to 150 psig (10.34 barg) • 0% manufacturing range • Operating pressures to 90% of the disk’s marked burst pressure. Contact ZOOK for operating ratio for burst pressures below 40 psig (2.76 barg) • Counterbore side of the disk contacts the process media • Vacuum supports are available for ratings below 25 psig (1.72 barg) • May be configured to withstand high back pressure generated in closed piping systems be at the disk location at the time when the disk is expected to rupture • Many common sizes and pressure ratings are available for RAPID Delivery. Contact ZOOK for more information Sizes in (mm): 1” (25), 1-1/2” (38), 2” (50), 3” (76), 4” (102), 6” (152), 8” (203) to fit ASME B16.5 Class 150 flanges Burst Pressures psig (barg): 10 (0.69), 15 (1.03), 20 (1.38), 25 (1.72), 30 (2.07), 40 (2.76), 50 (3.45), 75 (5.17), 100 (6.89), 125 (8.62), 150 (10.34) Note: RAPID Delivery Mono disks are not PED or ASME compliant • ASME (UD) and PED (CE) compliance available Specifications Disk Size MNFA Vacuum Support Style NPS DN Actual ID Full Bore Ring Safety Relief Valve Protection 0.44 1-½ 2 in mm mm in mm in2 ½ ¾ 1 Options6 8 2-½ 3 4 5 10 12 14 16 18 20 24 102 127 152 203 254 305 356 406 457 508 610 13 19 25 38 50 64 76 15 20 25 40 50 65 80 100 125 150 200 250 300 350 400 450 500 600 0.62 0.82 1 1.50 2 2.50 3 4 5 6 8 10 12 13.25 15.25 17.25 19.25 23.25 15.7 20.8 25.4 38.1 50.8 63.5 76.2 101.6 127.0 152.4 203.2 254.0 304.8 336.5 387.3 438.1 488.9 590.5 0.30 0.53 0.78 1.76 3.14 4.78 7.06 12.56 19.63 28.27 50.02 78.53 113.09 137.88 182.65 233.70 291.03 424.55 mm2 193 341 503 1,135 2,025 3,083 4,554 8,103 12,664 18,238 32,270 50,664 72,961 88,954 117,838 150,773 187,760 273,902 in2 N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A mm2 N/A N/A 283 N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A in2 N/A N/A 0.60 1.34 2.39 3.65 5.56 10.56 15.88 22.27 40.26 63.53 89.09 108.06 144.52 Bar mm2 N/A N/A 387 864 1,541 2,354 3,587 6,812 10,245 14,367 25,974 40,987 57,477 69,715 93,238 181.95 117,386 233.28 150,502 354.80 228,902 Notes: *Standard disk thickness does not include gaskets. Insulated unit thickness includes all gaskets Cross in2 N/A N/A 0.47 1.05 1.86 2.94 4.31 8.81 12.70 17.27 31.82 50.78 69.09 83.31 112.65 153.70 184.53 294.05 mm2 N/A N/A 303 677 1,200 1,896 2,780 5,683 8,193 11,141 20,528 32,761 44,574 53,748 72,677 99,161 119,051 189,709 in2 N/A N/A 0.32 0.72 1.30 2.04 2.95 5.47 8.39 12.05 21.14 32.66 47.24 58.07 84.49 104.31 122.49 190.61 Plate mm2 N/A N/A 206 464 838 1,316 1,903 3,529 5,412 7,774 13,638 21,070 30,477 37,464 54,509 67,296 79,025 122,973 • All pressures shown are based on an ambient temperature of 72°F (22°C) • Not all minimum/maximum pressure and temperature combinations are available. Please contact ZOOK for more information • Unless otherwise noted, stated MNFA and Kr values apply to the rupture disk only and does not include the addition of external vacuum supports or insulated units 68 Thickness* (Flange Group 1) ASME Cl 150 PN6 / 10 / 16 / 20 JIS 5K / 10K / 16K Standard Disk in 0.63 0.63 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 1.13 1.50 2.00 2.25 2.50 2.75 3.00 3.00 mm 15.8 15.8 22.2 22.2 22.2 22.2 22.2 22.2 22.2 22.2 28.5 38.1 50.8 57.1 63.5 69.8 76.2 76.2 Insulated Unit in 1.75 1.75 2.25 2.25 2.25 2.25 2.25 2.25 2.25 2.25 2.75 3.38 4.38 4.88 5.38 5.88 6.38 6.38 • Disks w/pressure ratings of 25 psig (1.72 barg) and above will support full vacuum w/o additional support • Maximum pressure rating of ASME B16.5 Class 150 flanges is 290 psig (19.99 barg) @ 100°F (38°C). The maximum pressure rating is lower at higher temperatures. Reference ASME/ANSI B16.5 mm 44.4 44.4 57.1 57.1 57.1 57.1 57.1 57.1 57.1 57.1 69.8 85.8 111.2 123.9 136.6 149.3 162.0 162.0 • Temperature ratings –290°F to +700°F (–143°C to +371°C). Maximum temperature rating without insulation is 430°F (221°C) or 700°F (371°C) with insulation. Contact ZOOK for higher temperature ratings. The specified temperature shall Graphite Rupture Disks
ZOOK Product Catalog 2024 - Full
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