Oily Water Separator (15 ppm) · Oily Water Separator
The RWO Veolia ST-4 is a 15 ppm oily water separator. It is normally installed in the engine-room bilge-treatment area with feed pump, oil-content monitor and discharge/recirculation valves. It is designed for treatment of machinery-space bilge water before any permitted overboard discharge. In operation, separation/coalescence/filtration stages remove oil before monitored discharge. Compared with neighbouring models, the relevant differences are treatment capacity, separation stages, consumables, monitor and control configuration; these must be confirmed from the installed documentation rather than inferred from the model designation alone. Service and survey attention should concentrate on separator condition, coalescers/filters, oil-content monitor, stop/recirculation valve, piping integrity and records. For exact ratings, dimensions, tolerances, test limits and model-specific settings, refer to the manufacturer documentation for the exact figure.
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What our service work and the manufacturer documentation say about keeping this model running.
Inspect separator consumables/internals, clean and function-test the oil-content monitor, verify alarm and automatic stop/recirculation response, and check feed pump and valves. Trace the actual piping to exclude unauthorized bypasses and review calibration/service records and Oil Record Book entries.
Carry separator filters/coalescers or other consumables, oil-content-monitor cleaning/service items, feed-pump seals, solenoid/actuator kits, sample tubing and approved gaskets. Critical installations may justify spare monitor or control components.
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