RE/RE-7R Replaceable Element Disks
The unique fail
safe design of the RE™ type disk assures the disk cannot be installed
incorrectly in the safety head as the disk will burst at its rated burst
pressure in either direction. Additionally, the disk and safety head
assembly may be installed in either direction between pipe flanges. A disk
with a burst pressure of 22psig (1.52 bar) or above will withstand full
vacuum.
RE-7R™ Safety Head
The RE™ type disk is installed in a
precision machined RE-7R™ safety head for direct installation between
standard international pipe flanges
Flange Ratings
The safety heads are designed to fit
between all standard international pipe flanges, ANSI, DIN, AFNOR, BS,
JIS and to nestle within the flange bolts
Material
Safety heads are available in impregnated
graphite or 316SS as standard
Patented: US 5,121,847 Japan 2611105
Specifications
| Nominal Size | Burst Ratings @ 22ºC (72ºF) | Internal
Diameter | Total Assembly Thickness |
| min. | max. | 316SS | Graphite |
| in. | mm | barg | psig | barg | psig | mm | in. | mm | in. | mm | in. |
| 1 | 25 | 0.70 | 10.0 | 30.0 | 435 | 32 | 1.26 | 28 | 1.10 | 28 | 1.10 |
| 1.5 | 40 | 0.48 | 7.0 | 20.0 | 290 | 48 | 1.89 | 28 | 1.10 | 31 | 1.22 |
| 2 | 50 | 0.20 | 3.0 | 15.0 | 217 | 64 | 2.52 | 28 | 1.10 | 32 | 1.26 |
| 2.5 | 65 | 0.20 | 3.0 | 12.0 | 174 | 76 | 2.99 | 30 | 1.18 | 37 | 1.46 |
| 3 | 80 | 0.15 | 2.2 | 10.0 | 145 | 89 | 3.50 | 35 | 1.38 | 42 | 1.65 |
| 4 | 100 | 0.15 | 2.2 | 8.0 | 116 | 114 | 4.49 | 37 | 1.46 | 47 | 1.85 |
| 5 | 125 | 0.10 | 1.5 | 6.0 | 87 | 140 | 5.51 | 40 | 1.57 | 47 | 1.85 |
| 6 | 150 | 0.07 | 1.0 | 5.0 | 72 | 165 | 6.50 | 44 | 1.73 | 47 | 1.85 |
| 8 | 200 | 0.07 | 1.0 | 4.0 | 58 | 216 | 8.50 | 50 | 1.97 | 61 | 2.38 |
| 10 | 250 | 0.07 | 1.0 | 3.0 | 43 | 267 | 10.51 | 53 | 2.09 | 68 | 2.68 |
| 12 | 300 | 0.07 | 1.0 | 2.5 | 36 | 318 | 12.52 | 61 | 2.40 | 76 | 2.99 |
| 14 | 350 | 0.07 | 1.0 | 2.0 | 29 | 356 | 14.02 | 63 | 2.48 | 80 | 3.15 |
| 16 | 400 | 0.07 | 1.0 | 1.5 | 21 | 406 | 15.98 | 70 | 2.76 | 83 | 3.27 |
| 18 | 450 | 0.07 | 1.0 | 1.5 | 21 | 457 | 17.99 | 77 | 3.03 | 92 | 3.62 |
| 20 | 500 | 0.07 | 1.0 | 1.2 | 17 | 508 | 20.00 | 88 | 3.46 | 105 | 4.13 |
| 24 | 600 | 0.07 | 1.0 | 1.2 | 17 | 610 | 24.02 | 93 | 3.66 | 111 | 4.37 |
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