Product overview
The Nakakita NSTM732 is an automatic pneumatic temperature-indicating controller commonly installed on marine diesel-engine cooling, lubricating-oil and fuel-oil systems. It measures process temperature and supplies a pneumatic control signal to a diaphragm-operated control valve.
Nakakita Seisakusho manufactures marine fluid-control equipment for engine rooms, ballast systems and tanker cargo systems. Nakakita official product information
Technical specifications
| Specification | Details |
|---|---|
| Manufacturer | Nakakita Seisakusho Co., Ltd. |
| Model | NSTM732 / NS-TM-732 |
| Equipment type | Automatic pneumatic temperature controller |
| Typical temperature range | 0–150°C |
| Alternative ranges | 0–100°C and 0–200°C |
| Instrument-air supply | 1.4 kgf/cm², approximately 140 kPa |
| Pneumatic output | 0.2–1.0 kgf/cm², approximately 20–100 kPa |
| Controller action | Proportional or PID, depending on configuration |
| Proportional band | Approximately 10–250% |
| Installation | Panel or wall mounting |
| Sensor | Remote temperature bulb with capillary tube |
| Country of origin | Japan |
The temperature range and control mode vary between individual NSTM732 configurations. One documented marine configuration uses a 0–150°C range, 1.4 kgf/cm² supply and 0.2–1.0 kgf/cm² control pressure. Documented NSTM732 configuration
Marine applications
- Main-engine jacket-water temperature control
- Lubricating-oil temperature regulation
- Fuel-oil heating and viscosity-control systems
- Generator-engine cooling systems
- Central freshwater-cooling systems
- Three-way pneumatic temperature-control valves
- Replacement on Japanese-built vessels
Why this is a suitable catalogue product
- Large installed base on older commercial vessels
- Frequently required for repair, calibration and replacement
- New replacement units and internal spares can be difficult to source locally
- Customers must often locate the correct temperature range and pneumatic action
- Deep Automation can offer inspection, calibration, repair and replacement assistance
Information required with an inquiry
Ask the customer to provide:
- Complete nameplate photograph
- Model exactly as marked
- Temperature scale
- Instrument-air supply pressure
- Pneumatic output range
- Direct- or reverse-acting requirement
- PI or PID control configuration
- Temperature-bulb connection
- Capillary length
- Vessel and engine model
