NAKAKITA NS-967F
Refurbished
The NAKAKITA SEISAKUSHO NS-967F Air Purge Unit is a critical component used in marine draft gauge and tank level measurement systems onboard commercial vessels. Designed and manufactured by Japan's renowned Nakakita Seisakusho, the NS-967F provides reliable pneumatic pressure generation for accurate draft and tank level monitoring.
These units are widely installed on bulk carriers, tankers, container vessels, LPG/LNG carriers, offshore support vessels, and other commercial ships where precise draft measurements are essential for navigation safety and cargo management.
The NS-967F Air Purge Unit is a pneumatic device that continuously supplies compressed air into draft measuring pipes or tank sounding pipes.
By maintaining a constant airflow, the system measures the hydrostatic pressure exerted by seawater or liquid inside a tank. This pressure is then converted into draft or level readings displayed on bridge indicators and cargo monitoring systems.
The technology is simple, reliable, and highly accurate, making it one of the most trusted methods for marine draft measurement.
Maintains a steady airflow through draft sensing lines.
Provides pressure reference for draft gauge systems.
Used in ballast and service tank measurement systems.
Ensures accurate hydrostatic pressure measurement.
Works with vessel monitoring and automation systems.
The NS-967F operates using the well-established pneumatic bubbling principle.
Compressed air enters the Air Purge Unit.
The unit regulates airflow and pressure.
Air is sent through sensing tubes installed below the waterline or inside tanks.
Air bubbles exit from the tube opening.
The pressure required to release the bubbles corresponds to the liquid height.
Pressure signals are transmitted to draft indicators and monitoring systems.
The bridge receives accurate draft or tank level readings.
Designed for continuous operation in harsh marine environments.
Manufactured by NAKAKITA SEISAKUSHO of Japan.
Robust construction ensures years of reliable service.
Suitable for marine engine room and cargo environments.
Simple integration with existing draft gauge systems.
Requires minimal servicing when operated correctly.
Provides accurate measurement results.
The NS-967F Air Purge Unit is commonly used on:
Draft monitoring during cargo loading and unloading.
Ballast and cargo level measurement.
Tank level monitoring systems.
Draft indication and ballast management.
Marine tank monitoring systems.
Hydrostatic pressure measurement applications.
Accurate draft measurement is essential because it helps operators:
A complete draft measurement system may include:
NS-967F
Proper maintenance significantly increases service life and measurement accuracy.
Compared with alternative technologies, the NS-967F offers:
It supplies regulated air for draft and tank level measurement systems.
No. It can also be used in tank level monitoring applications.
Bulk carriers, tankers, container ships, offshore vessels, and general cargo ships.
Periodic verification is recommended to maintain accuracy.
Yes. It can work alongside various marine monitoring and automation systems.
Typical documentation includes:
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NAKAKITA SEISAKUSHO NS-967F AIR PURGE UNIT
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