57 Rupture Disk Holders Rupture Disk Holders RAH Series Teflon - TM The Chemours Company Hastelloy - TM Haynes International Options / Accessories Cap Screw Specifications** Type Socket Head Material Alloy Steel Hardness 38-43-RC Threads UNRF 3A ** Required to meet Pre-Torque specifications Replacement Fluoropolymer Coated Cap Screws 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) Holder Dimensions / Specifications Nominal Size Available Flange Class* (ANSI / DIN) Minimum Height u (in. / mm) Standard Height (in. / mm) Weight (Short Pattern) (lbs / kgs) Number of Cap Screws Cap Screws Hex Size (in.) Gauge tap (NPT) (in.) Short Pattern RAH Mid Pattern RAH-LP1 Long Pattern RAH-LP2 1” 150/300/600 1-9/16 2-1/8 2-11/32 2-9/16 3.8 lbs 4 3/16 1/8, 1/4 ▲ 25 mm 10/16/25/40 39.68 53.97 59.53 65.09 1.72 kgs 4 3/16 1/8, 1/4 1-1/2” 150/300/600 1-11/16 2-1/4 2-29/32 3-9/16 6.4 lbs 4 1/4 1/8, 1/4 40 mm 10/16/25/40 42.86 57.15 73.82 90.49 2.9 kgs 4 1/4 1/8, 1/4 2” 150/300/600 2-5/32 2-23/32 3-15/16 5-5/32 9.0 lbs 4 5/16 1/8, 1/4, 1/2 50 mm 10/16/25/40 54.77 69.06 100 130.97 4.08 kgs 4 5/16 1/8, 1/4, 1/2 2-1/2” 150/300/600 2-9/16 3-1/8 4-15/16 6-23/32 16.6 lbs 4 3/8 1/8, 1/4, 1/2 65 mm 10/16/25/40 65.09 79.38 125.41 170.66 7.5 kgs 4 3/8 1/8, 1/4, 1/2 3” 150/300/600 2-9/16 3-1/8 4-15/16 6-23/32 16.6 lbs 4 3/8 1/8, 1/4, 1/2 80 mm 10/16/25/40 65.09 79.38 125.41 170.66 7.5 kgs 4 3/8 1/8, 1/4, 1/2 4” 150/300 2-19/32 3-5/32 5-31/32 8-3/4 22.5 lbs 4 3/8 1/8, 1/4, 1/2 100 mm 10/16/25/40 65.88 80.17 151.61 222.25 10.2 kgs 4 3/8 1/8, 1/4, 1/2 6” 150/300 3-7/32 3-7/16 6-25/32 10-3/32 36.00 lbs 8 5/16 1/8, 1/4, 1/2 150 mm 10/16/25/40 81.76 87.31 172.24 256.38 16.33 kgs 8 5/16 1/8, 1/4, 1/2 8” 150/300 4-1/16 4-5/8 9-1/32 13-15/32 53.4 lbs 8 3/8 1/8, 1/4, 1/2 200 mm 10/16 103.19 117.48 229.39 342.11 24.22 kgs 8 3/8 1/8, 1/4, 1/2 10” 150 4-3/4 5-21/32 11-5/32 16-11/16 99.8 lbs 12 3/8 1/8, 1/4, 1/2 250 mm 10/16 120.65 143.67 283.37 423.86 45.27 kgs 12 3/8 1/8, 1/4, 1/2 12” 150/300 5-1/16 6-17/32 13-5/32 19-25/32 136.00 lbs 12 1/4 1/8, 1/4, 1/2 300 mm 10/16 128.59 165.89 334.17 502.44 61.69 kgs 12 1/4 1/8, 1/4, 1/2 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 u A 12” RA6 disk can only be installed in Short pattern or taller RAH holder. Contact factory for Minimum height installations • Refer to ASME/ANSI B16.5 pipe flanges and flange fittings (Table 2) for max allowable pressure/temperature ratings per flange class ▲ Gauge tap size needs to be reviewed with factory for reduced 1” RAH-G holders ■ Only available in insert or full flange designs, contact ZOOK for more information J-Hook Short / Mid / Long Pattern • Can be machined to meet existing piping specifications • Prevents rupture disk membrane from protruding beyond the outlet holder after burst Eye Bolt • To assist in lifting Tantalum Coating • Ideal for extreme corrosive applications and higher temperatures RAH_012024 ■ ■ ■ ■ ■ ■ ■ ■
ZOOK Product Catalog 2024 - Full
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