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Reverse Acting Bursting Disc (Rupture Disc) with integrated Buckling Pins KUB®
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1774 Leonard Euler developed the formula for buckling of pins. His aid was his knowledge of mathematics. In 1991 REMBE® introduced the patented reverse buckling pin bursting disc (rupture disc) KUB®. This time, the aid was the most modern laser cutting technology which made it possible to incorporate the buckling pins into the dome of the disc.
High tech manufacturing enables 0 % tolerance. The KUB® has two layers: the process layer consists of an integrated convex, smooth sealing-membrane that protects the second layer, the buckling pin element, from corrosion. Constant burst pressure, long service life and high operating ratios are guaranteed.
Experienced plant operators comment on the reverse buckling-pin bursting disc KUB®: “Never before has a bursting disc governed such a wide burst range and application spectrum with the same sturdiness and service life as the KUB®.” |
KUB® dimensions
KUB | DN (mm) | 20 | 25 | 40 | 50 | 65 | 80 | 100 | 150 | 200 | 250 | 300 | 350 | 400 | 450 | 500 | 600 | 700 | 800 |
NPS (in) | 3/4" | 1" | 1,5" | 2" | 2,5" | 3" | 4" | 6" | 8" | 10" | 12" | 14" | 16" | 18" | 20" | 24" | 28" | 32" | |
Eff. Venting Area (cm2) |
| 3 | 4.5 | 11 | 22 | 35 | 50 | 80 | 180 | 280 | 440 | 650 | 860 | 1100 | 1485 | 1855 | 2710 | 3680 | 4850 |
Eff. Venting Area (in2) |
| 0.47 | 0.7 | 1.70 | 3.29 | 4.72 | 7.33 | 12.4 | 27.9 | 43.4 | 68.2 | 100.7 | 133 | 171 | 230 | 288 | 420 | 570 | 752 |
Your benefits:
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KUB®-V-SeriesThe benefits of the KUB®-V-Series are ingenious. By putting the space between disc and safety valve slowly under pressure the valve can be checked in place for leakage or smooth performance. This unique durability against backpressure of the KUB®-V-Series is achieved by modifying the proven double layer KUB® design and will never be obtained by single layer or pre-weakened bursting discs.
Due to special reinforcements of the second protecting layer the V-Series withstands twice the pressure in reverse direction as it does in venting direction. Even after multiple valve-testing performance the durability of the bursting disc (rupture disc) remains unchanged.
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Your benefits:
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KUB®-G-SeriesYet another highlight of the KUB® family.
It is the world’s first ever made bursting disc tailored to the challenging demands of geothermal applications. For these applications the endurance of a bursting disc is defined by extreme temperatures and ongoing corrosion.
Special finishing technologies of the KUB®-G-Series withstand these aggressive effects and double the lifetime of the bursting disc.
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Your benefits:
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The KUB®, KUB®-V- and KUB®-G-Series are available in the following sizes:
KUB® Pat. ang. | DN 25 | DN 40 | DN 50 | DN 65 | DN 80 | DN 100 | DN 150 | DN 200 | DN 250 | DN 300 | DN 350 | DN 400 | DN 450 | DN 500 | DN 650 | DN 700 | DN 800 |
Eff. Venting Aarea (cm2) | 4,5 | 11 | 22 | 35 | 50 | 80 | 180 | 280 | 440 | 650 | 860 | 1100 | 1485 | 1855 | 2710 | 3680 | 4850 |
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