Manufacturer: Niikura Kogyo  Co., Ltd
Model: No.38B Series: 44RC-H-80, 44RS-H-100 to 300

Function

If there is an oil spill on the upper deck of the tanker which enters the port, it will contaminate the sea. In order to prevent this problem, every scupper must be plugged.
In operation, this device, a valve which can eliminate water, can lead water containing spilled oil to the slope tank.