Description
NAKAKITA SEISAKUSHO
TYPE: NS737D
PNEUMATIC POSITIONER
LOADING PRESS: 0.2~1 KGF/CM2
AIR SUPPLY PRESS: 5 KGF/CM2
OUTPUT PRESS: 0~5 KGF/CM2
The Nakakita Seisakusho NS737D is a pneumatic positioner from a marine control system, used with air-operated control valves to set the actuator position in response to a pneumatic control signal. It accepts a loading pressure of 0.2-1 kgf/cm² and, from a 5 kgf/cm² air supply, delivers an output pressure of 0-5 kgf/cm² to the actuator. This arrangement lets a low-pressure instrument signal drive a valve that needs a higher operating pressure. Positioners of this type are found on valves controlling temperature, level and pressure in engine room systems. The NS737D is supplied in used condition.
Key Features
✓ Type NS737D pneumatic positioner
✓ Loading pressure 0.2-1 kgf/cm²
✓ Air supply pressure 5 kgf/cm²
✓ Output pressure 0-5 kgf/cm²
✓ Converts a pneumatic signal into actuator pressure
Marine Applications
✓ Jacket cooling water temperature control valves
✓ Fuel oil heating steam control valves
✓ Boiler feed water level control valves
✓ Pneumatic control valves in engine room automation
Technical Support
Prota Marine provides technical support, repair and onboard installation for the NS737D pneumatic positioner and the wider marine control system. Assistance extends to fault diagnosis on the positioner and its valve, and to commissioning support once it is in place.
