This is a Nakakita NSTM 732 temperature controller, a pneumatic device used in industrial and marine settings for automatically regulating process conditions.
- It is a force-balanced instrument that detects measured values via the displacement of a spiral Bourdon tube.
- The device is designed for simple control, handling, and maintenance due to its compact design and minimal parts.
- It features a scale indicating pressure in kPa and a “PROPORTIONAL BAND” adjustment.
- The controller is typically used in fluid control systems, such as for main engine cooling fresh water or fuel oil purifier heaters.




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