REMBE®: KUB® – The most reliable rupture disc
What this video shows
REMBE presents the KUB rupture disc in this video. The manufacturer credits its geometry of predetermined breaking points, kept out of contact with the process medium, with preventing premature failure and keeping the defined burst pressure stable. Verify pressure conditions, material compatibility and certification evidence for the actual protection duty.
What the footage shows
Process challenge
Demonstrated solution
According to REMBE, the KUB's geometry of predetermined breaking points prevents premature failure, and its smooth process-side surface avoids deposits. Since the breaking points never touch the process medium, the manufacturer states the defined burst pressure stays reliable over a long service period compared with other rupture disc designs.
Technical overview
Key features
- •Series of buckling pins that collapse to open the disc's full bore, rather than relying on a scored or thinned weak point in the disc membrane.
- •Two-layer construction with a smooth, unblemished sealing membrane facing the process medium to reduce corrosion damage.
- •Torque-independent installation using a metal-on-metal seal, allowing the disc to be removed, inspected, and reinstalled without affecting burst pressure.
- •Burst pressure determined using Euler's critical load formula applied to the buckling pin mechanism.
Benefits
- •Reusable design: the disc can be removed, inspected, and reinstalled without compromising its burst pressure rating.
- •Resistant to fatigue at higher operating pressures compared with conventional weak-point rupture discs.
- •Robust construction that withstands mishandling, improper installation, or being dropped without damage.
- •No special tools required for installation because of the torque-independent design.
Typical applications
- •Chemical reactors, autoclaves, heat exchangers, and distillation towers in chemical and petrochemical processing.
- •Safety valve isolation using the KUB V variant, protecting valves from corrosive or adhesive media and enabling in-situ testing.
- •Hygienic and aseptic processes using the KUB clean variant, compatible with tri-clamp connections, CIP, and SIP systems.
- •LNG systems, refineries, FPSO vessels, gas compressor modules, and geothermal energy installations.
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About this video
The KUB is the rupture disc REMBE presents in this video. According to the manufacturer, its geometry of predetermined breaking points prevents premature failure, and the smooth surface facing the process medium avoids deposits.
Because the breaking points never touch the process medium, REMBE states that the defined burst pressure is maintained over a longer period than with other rupture disc designs.
How to read the footage
The video is most useful for examining the visible arrangement, equipment interfaces and access. Separate direct observation from commentary, and treat capacity, containment, certification and service-life statements as manufacturer claims unless attributable test evidence backs them — a video cannot confirm conditions outside the frame or values that were not measured.
Rupture discs of this kind serve explosion protection and process safety duties across industries from agriculture and building materials to chemicals, energy, food, petrochemicals and pharmaceuticals.
Engineering questions raised by the footage
- Which material test data and pressure conditions define the protection duty?
- Which connected volumes and ducts require protection or isolation?
- Where can flame, pressure or process discharge be released safely?
- How are inspection, impairment and replacement controlled?
Answer these with representative material data. Particle size distribution, bulk density, cohesion, moisture, abrasion, temperature and hazard properties can change the response of equipment that looks identical on video.
Before you specify
The video and its description support only the statements they explicitly present; they establish no unshown specification and no independent certification. Request the current data sheet, scope of supply, operating envelope, test method, maintenance requirements and exclusions for the offered configuration, and check them against drawings, written process data, safe isolation and the response to credible faults.
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