Reverse Buckling Type UX Bursting Disc

The Reverse Buckling Type UX bursting disc is a cross-scored, full-metal relief device engineered for medium to high pressure systems, high operating temperatures, and aggressive pressure cycling. Manufactured from premium nickel alloys, Inconel, Hastelloy*, or stainless steel, this disc offers dependable performance in demanding industrial environments.

Leveraging the Euler buckling principle, the dome is formed opposite the pressure direction. Once the calibrated burst pressure is reached, the dome reverses and ruptures cleanly along its precision cross-scoring. This design gives the UX disc superior fatigue resistance, stability under fluctuating loads, and an extended service life—driving down maintenance frequency and operational downtime.

Technical Capabilities

• Cross-scored construction for controlled, predictable opening
• Pressure range: 1 to 400 bar
• Temperature range: -50 °C to +450 °C
• Nominal sizes DN15 to DN300
• Manufactured from high-grade corrosion-resistant metals
• Fully metal construction ensures vacuum resistance and gas-tight performance
• Customised materials, pressure calibrations, and dimensions available

Applications & Integration

The Type UX disc is widely deployed in:

• Reactors and pressure vessels
• Gas cylinders and storage systems
• High-pressure processing lines
• Systems experiencing severe pressure fluctuation
• Installations requiring fatigue-resistant overpressure protection

Installation options include:

• Mounting in dedicated disc holders
• Direct installation between clamp sockets
• Versions with ATEX-approved burst detection for hazardous areas
• Use in combination with safety valves to protect valves from corrosive or adhesive media

Benefits

• Tailored design for material, pressure range, and dimensional requirements
• Outstanding stability under alternating pressure loads
• High resistance to corrosion and thermal extremes
• Solid-metal construction ensures full vacuum resistance and minimal leakage
• Optional integrated burst detection (ATEX-certified)
• Extended service life reduces downtime and maintenance costs

The Reverse Buckling Type UX bursting disc delivers robust protection, precise opening behaviour, and exceptional resilience—making it a trusted choice for high-performance pressure relief across critical industries.

Technical Specifications: