A dredge ball joint is a connection between two pipes that are used to transport a mixture of water and sand from a

dredger Dredging is the excavation of material from a water environment. Possible reasons for dredging include improving existing water features; reshaping land and water features to alter drainage, navigability, and commercial use; constructing da ...

to the discharging area.

Dredge ball joint components

* Gland * Ball * Liner * Case

Additional parts of a dredge ball joint

* Case liner * Ball liner * Gland liner

Dredge ball joint design

The inner diameter of dredge ball joint pipes ranges from 400 mm to 1200 mm. Dredge ball joint liners can be produced from steel and hard iron materials. To allow for variations of the tilting angle, the ball turning angle of a dredge ball joint is 15 degrees to 18 degrees, and the discharge pipe variation for a dredge ball joint ranges from 10 mm to 30 mm. The dredge ball joints are made to operate at low, medium and high pressure.

Dredge ball joint materials

Dredge ball joints can be made from

Cast iron Cast iron is a class of iron–carbon alloys with a carbon content more than 2%. Its usefulness derives from its relatively low melting temperature. The alloy constituents affect its color when fractured: white cast iron has carbide impuriti ...

of a

manganese Manganese is a chemical element with the symbol Mn and atomic number 25. It is a hard, brittle, silvery metal, often found in minerals in combination with iron. Manganese is a transition metal with a multifaceted array of industrial alloy use ...

chromium Chromium is a chemical element with the symbol Cr and atomic number 24. It is the first element in group 6. It is a steely-grey, lustrous, hard, and brittle transition metal. Chromium metal is valued for its high corrosion resistance and hardne ...

nickel Nickel is a chemical element with symbol Ni and atomic number 28. It is a silvery-white lustrous metal with a slight golden tinge. Nickel is a hard and ductile transition metal. Pure nickel is chemically reactive but large pieces are slow to ...

and

molybdenum Molybdenum is a chemical element with the symbol Mo and atomic number 42 which is located in period 5 and group 6. The name is from Neo-Latin ''molybdaenum'', which is based on Ancient Greek ', meaning lead, since its ores were confused with lea ...

alloy An alloy is a mixture of chemical elements of which at least one is a metal. Unlike chemical compounds with metallic bases, an alloy will retain all the properties of a metal in the resulting material, such as electrical conductivity, ductility, ...

, ductile manganese iron, or hard chromium iron.

External links

Dredge Knowledge

Dredge Ball Joint

www.dredgingtoday.com
Bearings (mechanical)