Rupture disc UKB LS

The UKB LS comprises a customisable housing, a reverse acting rupture disc and a three-section knife. When the definedburst pressure is reached, the rupture disc is pressed against the knife and opens. This design provides the lowest possible burst pressures while at the same time offering good vacuum resistance even up to high vacuum conditions. The rupture disc and housing are micro-welded and all elements are made of metal. This ensures maximum leak-tightness. Leakage rates of up to 10-10 are possible. With a wide array of available connections, we supply the ideal pressure relief unit for every application – even for ultra-clean processes.

Inverting rupture disc / bursting disc UKB LS
REMBE® rupture disc UKB LS

Despite its individuality, a number of “standard” sizes have become established for UKB LS over the last few decades. These are for installation between industry standard flanges and are listed in the table below. Please note that the values stated here are for guidance only. The true values are heavily dependent on the specified housing geometry.

Your advantages

  • Maximum leak-tightness.
  • Also suitable for high vacuum applications.
  • Out of this world: these rupture discs even protect space satellites – so you can be confident they will function reliably.

We build all the UKB LS rupture discs, and nearly all of them look different. They never have the same shape or connection, which makes our work exciting. We work together very closely, so it’s a bit like family, and we often meet after hours.

Ferdi Hillebrand and Sebastian Tomaszewski, the Compact Rupture Disc Team

Images

rupture disc / bursting disc UKB LS
Bespoke design
rupture disc / bursting disc UKB LS
Ready-to-install unit, micro-welded.
Technical drawing rupture disc / bursting disc UKB LS
Technical data
DIN EN 1092-1**, Type 11 ASME B 16.5
NPS [in] DN [mm] Ø D [mm] PN 10 Ø D [mm] PN 16 Ø D [mm] PN 25 Ø D [mm] PN 40 Ø D [mm]
150 # RF
Ø D [mm]
300 # RF
H* [mm]
¾" 20 61 61 61 60 54 63 25
1" 25 71 71 71 71 63 69 25
1 ½" 40 92 92 92 92 82 92 30
2" 50 105 105 105 105 101 107 30
2 ½" 65 125 125 125 127 120 127 35
3" 80 142 142 142 142 133 146 40
4" 100 162 162 162 167 171 177 50
6" 150 217 217 217 223 219 247 80
8" 200 272 272 283 290 276 304 110
10" 250 328 329 340 352 336 358 130
12" 300 378 384 - 417 406 419 150
14" 350 444 444 - 474 447 482 170
16" 400 489 495 - 546 511 535 190
*H is the minimal standard dimension. This dimension might be higher if a edgewise threaded connection in the process-averted part of the housing, in case of using flanges with tongues and groves or in case of ledge and recess is requested.
**Replaces DIN 2631 and following. Different sizes, pressure classes, temperatures, materials and fittings available on request.



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