Marine Air Pipe Head

The purpose of the ship's air pipe head is to ensure the balance of air pressure in the cabin of the ship, especially in the case of wind and waves or listing. The air pipe head is usually located at the top of the cabin, connected to the ventilation pipe, and is designed to allow the air pressure inside and outside the cabin to be consistent, preventing cabin damage due to changes in external pressure.

Overview

Structure of air pipe head

The common cap type air pipe head is mainly composed of a cover, a screw, a body and a screen, and the screw is used between the cover and the body. The connection between the air pipe head and the vent pipe is mostly flange connection. The screen can be divided into fire frame screen, insect screen and mosquito screen.The gooseneck air pipe head is mainly composed of a head, a float ball, a filter screen, a backing plate and a mesh plate. The float ball is made of flame retardant glass, usually the float ball is always located in the middle of the head, the air pipe is unblocked, when the sea water enters the air tube head, the float ball is held up and the air tube head is closed.The air vent head common types of materials include: cast iron, cast steel,aluminum, Stainless Steel, galvanize and so on.

Drawing