What is Marine Bottom Plug?

Marine bottom plugs, commonly known as drain plugs, are located at the bottom of each tank. A threaded hole with a diameter of about 50mm is opened at the lowest part of the bottom plate of each tank, tightened with a bolt, and the outside of the bottom plate is coated with cement and paint. Its purpose is to unscrew the bottom plug of the ship to clear the water in the bottom when the water in the tank needs to be lowered after the ship is docked for repair or painting and watertight test. In order to prevent sea water from entering the cabin from the Marine bottom plug while the ship is sailing, the Marine bottom plug must be strictly watertight.

Overview

Working principle

1. Sealing structure: Sealing gaskets or sealing materials are usually used to ensure that water can be effectively prevented from entering the cabin when closed.

2. Drainage function: By opening the bottom plug, the water on the bottom of the ship can be discharged.

3. Threaded connection: Threaded connection with the bottom hole to achieve tightening and sealing.

Working process

Under normal circumstances, the Marine bottom plug is sealed to prevent water from entering the cabin.

When it is necessary to drain, the Marine bottom plug is opened and the water is discharged through the plug hole.

After the drainage is complete, the Marine bottom plug will be tightened again to restore the seal state.

The working principle of the Marine bottom plug is simple and effective, and it plays an important role in ensuring the safety and maintenance of the ship.

Drawing

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