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Through Bulkhead Initiators (TBI)
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Pyroalliance designs and produces a series of Through-Bulkhead Initiators (TBIs) for defense applications. TBIs are designed to convert a detonating input into an ignition function, typically to ignite
the propellant of a Solid Rocket Motor. Tightness is guaranteed between upstream and downstream side of bulkhead, preventing any loss of pressure. TBIs are a key component of the propulsion function reliability and safety. Combined with other products from Pyroalliance, TBIs are part of pyro-chains for Solid Rocket Motors.
More generally, Pyroalliance delivers complete pyrotechnic chains adapted to its customers’ needs.
They are designed and manufactured under Pyroalliance design authority.
TBI at a glance
Benefits of pyrotechnics
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An ignition function with detonating input
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Structural barrier preventing loss of pressure of downstream elements
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Mass savings through the reduced quantity of embedded electrical power
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Absence of primary explosives (making one single Safe & Arm Device at the beginning of the pyrotechnic chain sufficient)
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Reduced dispersion of ignition times
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High level of safety (EMC and lightning immunity)
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Architecture without any moving parts
Defence applications
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Ignition of single pulse solid propellant motors
Please scroll down to discover more specifications on TBI:
Key figures, the complete product sheet to download.
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Key figures of pyrotechnics performance
| TECHNICAL SPECIFICATIONS | OUR RANGE OF PERFORMANCE |
|---|---|
| OPERATING TIME: |
< 5ms |
| OUTPUT ENERGY: | Range of 2300-2700J |
| IGNITION MODE: |
Detonating line / SAD |
| SIZE: |
Height : 46mm Length : 17.5mm Width : 15.5mm |
| WEIGHT: |
< 50g |
| RELIABILITY: | 0.9999 @90% CL |
| LEAK RATE: | Less than 10-5 ccs/sec under 1 bar after functioning |
| OPERATING TEMPERATURE: | Adapted to typical airborne military climatic environment |
| LIFE TIME: | Adapted to the mission and life profile |
