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Hartmann choses with care all materials which will be used for the low temperature range up to -100°C (-148° F). Thereby Hartmann is able to garanties the operational readiness of the valves anytime.
Standard Materials:
 up to -46°C (-50.8° F): TSTE (A350 LF2) Carbon steel.
up to -196°C (-320.8°F): cyrogenic applications
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