Defense Market

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.

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TBI at a glance

Benefits

  • An ignition function with detonating input
  • Structural barrier preventing loss of pressure of downstream elements
  • Mass savings through the reduced quantity of embedded electrical power
  • Absence of primary explosives (making one single Safe & Arm Device at the beginning of the pyrotechnic chain sufficient)
  • Reduced dispersion of ignition times
  • High level of safety (EMC and lightning immunity)
  •  Architecture without any moving parts

Applications

  • Ignition of single pulse solid propellant motors

 

Please scroll down to discover more specifications on TBI:
Key figures, the complete product sheet to download.

Key figures

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
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