Manufacturer: Niikura Kogyo  Co., Ltd
Model: 630 Series: 630-N, 630-C

Function

The device sits atop the vent riser of a tanker and prevents flames from reaching the tank through a chain-link fence built into the device.
The device successfully passed various verification tests based on MSC/Circ. 677 of IMO and received approvals from NK, ABS, LRS, and DNV, respectively.
63ON-250 to 750 / 630C-80 to 200 / 63OEB-80 to 200
Approved : IMO/Circ.677,1 009,1 324 ISO 1 5364