Marine grade flange is a flange used on ships. The flange is a part that connects the pipe to the pipe. Connect to the pipe end.

Connection of marine flange

There are holes in the flange, bolts can be used to make the two flanges tightly connected. The flanges are sealed with gaskets.
Flange connection is to fix two pipes, pipe fittings or equipment on a flange plate respectively, add flange pads between the two flange plates, and fasten them together with bolts to complete the connection. Some pipe fittings and equipment have their own flanges, which are also flange connections.

5083 Aluminium marine grade flange classification

Marine flat welding flange
It is a flange welded by inserting the pipe into the inner ring of the flange. The flat welding flange is divided into two types: the neck flat welding flange and the plate lap welding flange.
Marine butt welding flange
Also known as high-neck flange, it refers to a flange with a neck that has a round pipe transition and is butt welded to the pipe.
Marine loose flange
Also known as loose flanges, pipes are generally made of high-cost materials. In order to reduce costs, internal connections of the same material as the pipes and flanges of different materials are used, which is to use flanges, steel rings, etc. On the pipe end, the flange can move on the pipe end.
Loose flanges are generally used on copper-nickel alloy pipes and expansion joints.

5083 Aluminium marine hydraulic flange

The pressure of ship hydraulic piping system is very high, so special socket type high pressure method flange is adopted. The flange thickness is about 30mm-45mm depending on the pipe diameter. This kind of flange generally uses a concave flange and a convex flange to connect Method, use O-ring as sealing material.