PYROFLASKS are manufactured using
advanced proprietary techniques which
provide “k” coefficient levels unattainable
with conventional insulations but in a
compact design that maximizes space
available for the electronics payload.
The high efficiency of these instrument
packages is a result of the following

  • Austenitic stainless steels standard, other materials available on request
  • Concentric thin wall tube assembly
  • Annular space between tubes evacuated at elevated temperature –
    virtually eliminates gas conduction
  • Multi-layer reflective insulation to minimize radiation heat transfer
  • Evacuation tube cold welded for permanent high vacuum seal
  • Low conductivity internal support to maintain inner tube concentricity and
    still allow thermal expansion