Description
NAKAKITA SEISAKUSHO
TYPE: NS737S-D
PNEUMATIC POSITIONER
INPUT SIGNAL: 0.2-0.6 KGF/CM²
SUPPLY PRESS: 2.4 KGF/CM2
OUTPUT PRESS: 0.5-2.1 KGF/CM²
233082 D
B1229
The Nakakita Seisakusho NS737S-D is a pneumatic positioner for control valves in the marine control system. It accepts a pneumatic input signal of 0.2-0.6 kgf/cm² and, working from a 2.4 kgf/cm² air supply, delivers an output pressure of 0.5-2.1 kgf/cm² to the valve actuator. This lets the controller set valve opening in proportion to its demand, which governs flow, pressure or temperature in the plant the valve serves. It is a working part of pneumatic valve control loops in boiler and engine room service. Condition: New Without Box.
Key Features
✓ Type NS737S-D pneumatic positioner
✓ Input signal 0.2-0.6 kgf/cm²
✓ Supply pressure 2.4 kgf/cm²
✓ Output pressure 0.5-2.1 kgf/cm²
✓ Drives pneumatic control valve actuators
Marine Applications
✓ Boiler feed water control valve positioning
✓ Steam pressure control valve actuation
✓ Fuel oil temperature control valves
✓ Jacket and central cooling water temperature control valves
Technical Support
Prota Marine provides technical support, repair and onboard installation for the pneumatic positioner and the wider marine control system. Our team handles fault diagnosis of valve response problems and supports commissioning when the positioner is returned to the valve.
