A SealTel Power Unit with this coding is almost certainly part of a stern tube seal lubrication system or a bearing lubrication system on a ship. Its primary function is to provide a reliable and monitored supply of clean lubrication oil.
Key Features & Functions:
-
Purpose: To supply oil to a single or double Stern Tube Seal (or other remote equipment) to ensure proper lubrication, cooling, and sealing performance. It maintains a slight positive pressure over the surrounding seawater pressure.
-
Core Components:
-
Reservoir/Tank: Holds the lubricating oil, often with a level sight glass.
-
Electric Motor & Pump: Creates the flow and pressure. Often includes a redundant backup pump (standby function).
-
Filters: Ensures clean oil is supplied to the sensitive seal faces.
-
Pressure Regulator/Control Valve: Maintains the required system pressure.
-
Sensors & Monitoring: Includes pressure switches, level switches, and temperature sensors connected to a SealTel monitoring panel.
-
Control Panel: Local start/stop and alarms. Integrates with the vessel’s alarm system.
-
-
Condition Monitoring Integration: This is the key feature of SealTel systems. The power unit works in conjunction with sensors to monitor:
-
Oil Tank Level (Alarm on low level, indicating potential seal leakage).
-
System Pressure (Alarm on high/low pressure).
-
Pump Operation (Auto changeover on failure).
-
Data is typically fed to a central SealTel display unit on the bridge or in the engine control room.
-
-
Typical Specifications (to be verified from exact manual):
-
Fluid: Mineral or synthetic lubricating oil.
-
Flow Rate: Likely in the range of a few liters per minute (e.g., 2-10 L/min).
-
Operating Pressure: Typically 2-6 bar (relative to seawater pressure).
-
Motor Power: Single or three-phase, common voltages like 220VAC, 380VAC, 440VAC, 60Hz.
-
Construction: Marine-grade, corrosion-resistant materials.
-
