Unisite Group Ltd.

Dredging Suction Pipes,Suction Tube,Suction Connecting Tube,Pipe Joint

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Suction Pipe

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Dredging Pump Suction Pipe
  • Brand: UniSite
  • Packaging: bulk package and bulk vessel transportation container package and container transportation
  • Min. Order: 10 Piece/Pieces
  • Certificate: CCS/ISO/BV
  • Model No.: USA-339

The main functions of the dredging pump suction pipes are to transport the dredge mixture to the hopper and transfer the trailing forces from the draghead to the ship The suction pipe also ensures full control of the draghead on the sea floor On the suction pipe there are also supports for jet water systems hydraulic piping and cabling Royal IHC s...

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Customizd pump suction discharge pipes
  • Brand: UniSite
  • Packaging: bulk package and bulk vessel transportation container package and container transportation
  • Min. Order: 10 Piece/Pieces
  • Certificate: CCS/ISO/BV
  • Model No.: USA-240

Once the mixture is loaded inside the hopper the substance will sink and the water is discharged overboard creating more room for extra substance A trailing suction hopper dredger is only capable to suck relatively loose substance because the steel teeth are not so big Harder substances such as rock or iron based rock must be destroyed by a cutter...

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Steel pump suction dredging pipes
  • Brand: UniSite
  • Packaging: bulk package and bulk vessel transportation container package and container transportation
  • Min. Order: 10 Piece/Pieces
  • Certificate: CCS/ISO/BV
  • Model No.: USA-239

The vessel should always have a positive speed over the ground It is possible to regulate the density of the sucked substance If the head is lowered more material will be sucked but there is a greater possibility of damaging the installation because the material can get stuck inside the pipes Discharging Through suction pipe There are several ways...

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Pump suctions weld steel pipe
  • Brand: UniSite
  • Packaging: bulk package and bulk vessel transportation container package and container transportation
  • Min. Order: 10 Piece/Pieces
  • Certificate: CCS/ISO/BV
  • Model No.: USA-238

Suction pipe plays an important role in loading and discharging From the side of the ship one or two suction pipes descend to the bottom of the seabed On the end of the pipe a so called trailing drag head is connected This head is comparable to a large vacuum cleaner and is trailed along the seabed In the head there are nozzles connected to a high...

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Pump suction discharge dredging pipes
  • Brand: UniSite
  • Packaging: bulk package and bulk vessel transportation container package and container transportation
  • Min. Order: 10 Piece/Pieces
  • Certificate: CCS/ISO/BV
  • Model No.: USA-237

Suction pipes fulfil a number of key functions in the dredging process They ensure full control of the draghead on the bottom transport the soil water mixture to the hopper transmit the trailing force from the draghead to the ship and support jet water other pipeline systems and cabling Certificates Material certificates by a classification...

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Steel dredging pipe suction
  • Brand: UniSite
  • Packaging: bulk package and bulk vessel transportation container package and container transportation
  • Min. Order: 10 Piece/Pieces
  • Certificate: CCS/ISO/BV
  • Model No.: USA-236

These operations are carried out during the voyage while digging edge flight heading for the hopper filled to throw mud mud area through the mud bilge cases out the door shiploads are trailing suction hopper with its capacity to indicate the size specifications the general compartment volume is 500 1000m3 the minimum energy of trailing suction...

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Oil large size suction pipe
  • Brand: UniSite
  • Packaging: bulk package and bulk vessel transportation container package and container transportation
  • Min. Order: 10 Piece/Pieces
  • Certificate: CCS/ISO/BV
  • Model No.: USA-235

The suction pipe is main part of Trailing suction hopper dredger through suction pipe from the seabed dredging ship the dredging method is similar to a vacuum cleaner Ship fitted with one or several pumps centrifugal pumps suck up water from the sea floor and mud into the hopper of the ship The specifications of our suction pipe A General High...

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China Suction Pipe Suppliers

From the side of the ship one or two suction pipes descend to the bottom of the seabed. On the end of the pipe a so-called trailing Drag Head is connected. This head is comparable to a large vacuum cleaner and is trailed along the seabed. In the head there are nozzles connected to a high pressure water installation that are capable of loosening the material on the seabed. Due to lower pressure in the pipe, the material will be sucked inward and discharged in the hopper.

The vessel should always have a positive speed over the ground. It is possible to regulate the density of the sucked substance. If the head is lowered, more material will be sucked but there is a greater possibility of damaging the installation because the material can get stuck inside the pipes. Once the mixture is loaded inside the hopper, the substance will sink and the water is discharged overboard, creating more room for extra substance. A trailing Suction Hopper Dredger is only capable to suck relatively loose substance because the steel teeth are not so big. Harder substances such as rock, or ironbased rock must be destroyed by a cutter.

Photo of our Suction Pipe:

Suction Pipe


The specifications of our suction pipe

A. General

High accuracy, fully welded, painted construction can be used for trailing suction hopper Dredger, suction pipe plays an important role. It is approved BV

Suction pipe system ensure full control of the drag head on the bottom, transport the dredge mixture to the hopper, then transmit the trailing force from the drag head to the ship and support pipes and cabling.

B. Construction and procedure

The construction is to be built according to the drawing with rules of good workmanship and to be built the longitudinal frame system.

The construction consist big suction pipes, Turning Gland, joint, jet line, Seamless Pipes, supports for cable and hoses, which are carefully manufactured and checked to ensure total length, straightness, symmetry within the specific tolerances.

C. Procedure

Welding seam preparation-Pre roll bending of plate tip-Rolling-Longitudinal welding (SAW),inside then outside-Crossing welding (SAW) between part tubes to form the whole pipe-US testing and repairing-Adjusting-Assemble other part

D. Materials

All fabricated steelwork used in the construction of the suction pipe will be to manufacturing standard of classification society BV, GL, LR, DNV, especially for neck flange.

All steel used to be blasted and shop primed both sides. Using DH36

All materials proposed will be selected to comply with the latest Health and Safety Rules.

Paint systems for hull protection will be of the highest quality (Hempel, Inter, Sigma, Jotun)

E. Welding

All welding will be performed in accordance with drawing and order and UniSite experience and all welding will be continuous and full penetration.

Welding seam preparation, welding method, welding material and consequent preheating temperature acc. to UniSite standards and approved by clients.

F. Workmanship

The workmanship have good marine practice. Care are taken to ensure fair lines, smooth surfaces and neat welding.

G. Main particulars

MAIN PARTICULARS

Tolerance

High accuracy(ISO2768, ISO5817, ISO13920)

Material

Q345D, DH36 other materials

Dimension(L*B*H)

As per drawing, as large as we can

OD

1000mm-2000mm

Weight

15Ton~70Ton

Coating

Sa2.5 blasted and two or three layers painted with highest quality

Marking

as per clients' requirements

Inspection

material, construction, dimension, welding seam, non defective test, paint inspection

Experience

We made a whole suction system with length 49.3m for world top dredging company.

Others

Recyclable, in line with environmental requirements and standards, and reliable