Classification of Marine Flanges
Release time:
2021-01-03
Marine flanges are flanges used on ships, which are parts that connect pipes to each other. They are connected to the ends of the pipes. Connection of marine flanges The flanges have holes that can be used with bolts to tightly connect two flanges. The flanges are sealed with gaskets.
Marine flanges are flanges used on ships, which are parts that connect pipes to each other. They are connected to the ends of the pipes.
Connection of marine flanges
Flanges have holes that can be used with bolts to tightly connect two flanges. Flanges are sealed with gaskets.
Flange connection is the process of fixing two pipes, pipe fittings, or equipment to a flange plate, adding flange gaskets between the two flange plates, and then securing them together with bolts to complete the connection. Some pipe fittings and equipment have their own flanges, which is also a flange connection.
Marine flat welding flange
It is a flange welded by inserting the pipe into the inner circle of the flange, with two types being neck flat welding flange and flat plate lap welding flange.
The advantages of flat welding flanges are low production costs and simple manufacturing, but they are not resistant to high temperatures and high pressures. Flat welding flanges are used for pipelines with pressures below 2.5 MPa at room temperature, and they are commonly used flanges on ships.
Marine butt welding flange
Also known as high-neck flanges, they refer to flanges with a neck that have a circular pipe transition section and butt against the pipe.
Butt welding flanges have high rigidity, are not easily deformed, have good sealing properties, and are widely used. They are suitable for high temperature and high pressure situations. The nominal pressure PN is about 16 MPa. They are mainly used in compressed air pipeline systems and carbon dioxide pipeline systems.
Marine loose sleeve flange
Also known as a loose flange, it is usually made of high-cost materials. To reduce costs, internal connections made of the same material as the pipe are used, as well as flanges made of different materials, such as flanges, steel rings, etc. At the pipe end, the flange can move at the pipe end.
Loose sleeve flanges are usually used for copper-nickel alloy pipes and expansion joints.
Marine hydraulic flange
The pressure in the hydraulic pipeline system of ships is very high, so special socket-type high-pressure method flanges are used, depending on the pipe diameter, with flange thicknesses of about 30mm-45mm. This type of flange generally uses concave and convex flange connection methods, with O-rings as sealing materials.
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