PRODUCT FEATURES
- High level of accuracy and dependability (± 1% full scale) regardless of pressure and temperature cycles, dynamic environments and harsh media
- Burst setting 100% verifiable and adjustable by nondestructive testing
- Achieves leak tightness of <1.00x10-9 sccs He, considerably better than pressure relief valves alone
- Allows continuous pressure cycling up to 95% of set burst pressure
- Impervious to high shock and vibration levels: does not cause premature rupture or reduced life
INDUSTRIES AND APPLICATIONS
- Human spaceflight – Meet NASA Fracture Critical Requirements – e.g. ISS, Orion, etc.
- Autonomous space vehicles – Extensive pedigree that began in the time of the Mercury Missions
- Cryogenic fluid management – Orbital refueling (e.g. NASA RRM3 Mission)
- Deep space applications – 20+ year Cassini Mission to Saturn – Prevented Boil-off leakage for over two decades
- Sensitive rail cargo – Vapor phase piping system where LNG or ethylene is being transported
- Transport aircraft fuel systems
PROPERTIES AND TECHNICAL INFORMATION
- Tested and Qualified
- SAFE-SHEAR burst discs have been tested through millions of cycles without failure or setting creep, up to 95% of rupture.
- Tested and qualified to various RTCA DO-160, MIL requirements.
- Technical Characteristics
- Pressures: 1 to 10,000 psi (.07 to 690 bar)
- Rupture tolerance: up to 1% Full-Scale Pressure
- Reverse pressure protection: full reverse, cycling
- Temperature: -457°F to 1,000°F (-271°C to > 540°C)
- Leakage: <1.0x10-9 sccs He
- Size: <.25” to over 3.0” (76mm) free flow area
- Mass: variable, based on usage
- Mounting: flange, weld to tube, custom
- Shock: pyrotechnic, operational & crash safety
- Vibration: launch, abort, ground, runway, high to low frequency
- Media: compatible with jet & rocket fuels, oxidizers, other harsh fluids
- Life: MTBF > 1,000,000 hours of operation (NPRD-95)
- Available Materials
- Aluminum, Stainless, Titanium, Inconel® and Superalloys, and PTFE.
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Technetics Group
FOR THE MOST EXTREME APPLICATIONS
From the center of a nuclear reactor pressure vessel to the deepest recesses of a 250-ton jet soaring across the sky, Technetics Group is your globally trusted source for sealing, component and sub-system technology products. We design solutions that can withstand the world’s most demanding environments, all custom-engineered to meet the critical requirements of the most extreme applications, in a wide variety of industries.
