Packing Specification

OWS (Oily Water Separator) Service:

1.    Functional Testing of the Overall System:

Bilge Pump and Valves: Checking that the bilge pump and associated valves (including the overboard discharge valve) are operating correctly. The system must automatically stop the overboard discharge and redirect the oily water back to a holding tank if the oil content exceeds 15 ppm.

Alarm System: Verifying that the audible and visual alarms on the OCM and bridge alarm panel activate correctly when the 15 ppm limit is exceeded.

Level Sensors: Testing the level sensors in the separator unit and other tanks to ensure they are functioning properly.

2.    Calibration of the Oil Content Monitor (OCM):

-This is the most critical part of the service. It must be performed by a manufacturer-authorized technician or a professional with a certified calibration kit.

-The technician will test the OCM using a certified test fluid with a known oil concentration (e.g., 500 ppm). The OCM's reading must be within a specific tolerance, typically ±10%.

-A zero calibration with fresh, clean water is also performed to ensure the baseline reading is accurate.

-The OCM's response time to an alarm condition is also checked.

3.    Physical Inspection and Maintenance:

-Filter and Coalesce Replacement: The filter and coalesce elements are crucial for the separation process. They must be inspected and replaced regularly as per the manufacturer's schedule. A clogged filter can significantly reduce separation efficiency.

-Cleaning: The separation chamber and the OCM's measuring cell are cleaned to remove any sludge, oil film, or debris that could interfere with the system's performance.

-Leak Checks: The technician will inspect all pipe connections, seals, and gaskets for any signs of leaks.

-Solenoid Valves: Solenoid valves are checked to ensure they are working properly, as they are responsible for switching the flow between the overboard discharge and the sludge tank.

4.    Documentation and Certification:

-After a successful service, the technician provides a detailed service report.

-A Calibration Certificate for the OCM is issued. This certificate is a mandatory document that must be kept on board the vessel and presented during inspections. It includes details such as the vessel's name, the OCM's serial number, the date of calibration, and the "as-found" and "as-left" readings.