A recent fire at a steel processing plant in the southern US severely burned 12 SIPART PS2 valve positioners. Amazingly, 11 of the positioners still worked just fine after being incinerated in the fire! See the proof here.
SIPART PS2 from Siemens is an intelligent digital electro-pneumatic valve positioner for linear and rotary actuators. Designed as standard with IP66 or NEMA 4x degree of protection, they are resistant to even the most hostile environments.
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