Rupture Disk Holders RAH Series Holder Dimensions / Specifications Nominal Size 1” 25 mm 1-1/2” 40 mm 2” 50 mm 2-1/2” 65 mm 3” 80 mm 4” 100 mm 6” 150 mm 8” 200 mm 10” 250 mm 12” 300 mm Notes: * Holders are also available to fit JIS flanging. Contact ZOOK for details. u Minimum height specified in table above will maintain the pre-torque feature of the rupture disk holder. • Refer to ASME/ANSI B16.5 pipe flanges and flange fittings (Table 2) for max allowable pressure/temperature ratings per flange class. Available Flange Class* (ANSI / DIN) 150/300/600 10/16/25/40 150/300/600 10/16/25/40 150/300/600 10/16/25/40 150/300/600 10/16/25/40 150/300/600 10/16/25/40 150/300 10/16/25/40 150/300 10/16/25/40 150/300 10/16 150 10/16 150/300 10/16 Minimum Heightu (in. / mm) 1-9/16 39.68 1-11/16 42.86 2-5/32 54.77 2-9/16 65.09 2-9/16 65.09 2-19/32 65.88 3-7/32 81.76 4-1/16 103.19 4-3/4 120.65 5-1/16 128.59 Short Pattern RAH 2-1/8 53.97 2-1/4 57.15 2-23/32 69.06 3-1/8 79.38 3-1/8 79.38 3-5/32 80.17 3-7/16 87.31 4-5/8 117.48 5-21/32 143.67 6-17/32 165.89 Standard Height (in. / mm) Mid Pattern RAH-LP1 2-11/32 59.53 2-29/32 73.82 3-15/16 100 4-15/16 125.41 4-15/16 125.41 5-31/32 151.61 6-25/32 172.24 9-1/32 229.39 11-5/32 283.37 13-5/32 334.17 Long Pattern RAH-LP2 2-9/16 65.09 3-9/16 90.49 5-5/32 130.97 6-23/32 170.66 6-23/32 170.66 8-3/4 222.25 10-3/32 256.38 13-15/32 342.11 16-11/16 423.86 19-25/32 502.44 Weight (Short Pattern) (lbs / kgs) 3.8 lbs 1.72 kgs 6.4 lbs 2.9 kgs 9.0 lbs 4.08 kgs 16.6 lbs 7.5 kgs 16.6 lbs 7.5 kgs 22.5 lbs 10.2 kgs 36.00 lbs 16.33 kgs 53.4 lbs 24.22 kgs 99.8 lbs 45.27 kgs 136.00 lbs 61.69 kgs Number of Cap Screws 4 4 4 4 4 4 4 4 4 4 4 4 8 8 8 8 12 12 12 12 Cap Screws Hex Size (in.) 3/16 3/16 1/4 1/4 5/16 5/16 3/8 3/8 3/8 3/8 3/8 3/8 5/16 5/16 3/8 3/8 3/8 3/8 1/4 1/4 Gauge tap (NPT) (in.) 1/8, 1/4 1/8, 1/4 1/8, 1/4 1/8, 1/4 1/8, 1/4, 1/2 1/8, 1/4, 1/2 1/8, 1/4, 1/2 1/8, 1/4, 1/2 1/8, 1/4, 1/2 1/8, 1/4, 1/2 1/8, 1/4, 1/2 1/8, 1/4, 1/2 1/8, 1/4, 1/2 1/8, 1/4, 1/2 1/8, 1/4, 1/2 1/8, 1/4, 1/2 1/8, 1/4, 1/2 1/8, 1/4, 1/2 1/8, 1/4, 1/2 1/8, 1/4, 1/2 Options / Accessories Short / Mid / Long Pattern • Can be machined to meet existing piping specifications • Prevents rupture disk membrane from protruding beyond the outlet holder after burst Replacement Fluoropolymer Coated Cap Screws Eye Bolt • To assist in lifting Gauge Tap • Used for monitoring pressure/temperature at rupture disk location • Also available on inlet holder PTFE Sleeved Holder Inlet • Ideal for corrosive applications and reducing product build-up (Refer to PTFE Sleeved Holder Inlet Data Sheet) Tantalum Coating Cap Screw Specifications** Type Material Hardness Threads Socket Head Alloy Steel 38-43-RC UNRF 3A ** Required to meet Pre-Torque specifications Teflon - TM The Chemours Company Hastelloy - TM Haynes International J-Hook • Ideal for extreme corrosive applications and higher temperatures 57 RAH_052020 Rupture Disk Holders
ZOOK Product Catalog 2024 - Full
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