Unisite Group Ltd.
Model No.: USA-343
Standard: AISI, ASTM, BS, DIN, GB, JIS, ISO
Certificate: BV CCS
Dimension: As Per Drawing/order
Inspection: Material, Construction, Dimension, Welding Seam, N
Application: Trailing Suction Hopper Dredger Parts
Surface: Highest Quality Painting
Grade: S355, Q345D, OVAKO280 Or Other Materials
Special Capacity: Large-size For The Ocean Engineering Vehicle，High
Dripping Overflow Pipe: Dripping Overflow Pipes
Packaging: bulk package and bulk vessel transportation container package and container transportation
Place of Origin: china mainland(zhejiang)
When the hopper is filled up to the Overflow pipe,the low density mixture at the top of the hopper content overflows through this pipe,and consequently the density of the hopper content increases.The loading of the hopper than usually continues until the overflow losses become so high that it is no longer economical to continue dredging .The sand which stays in the hopper is regarded as the dredging production.The efficiency ofexcavation by the Drag Head and the efficiency of sand sedimentation in the hopper both influence the dredging performance.
High accuracy, fully welded, painted construction with hydraulic cylinder can be used for trailing Suction Hopper Dredger.
The overflow system generally consists of a fixed outer part and a sliding inner part, both tubular. At the top of the moving part is a cone or rectangular-shaped weir, the purpose of which is to obtain a non-turbulent, uniform flow to encourage settling. The moving part is raised or lowered by means of a hydraulic cylinder attached to the fixed part.
The overflow drains excess process water overboard. An effective overflow system induces little turbulence, allowing the mixture maximum time to settle. All overflows are designed with the needs of a specific vessel in mind. A good overflow system can significantly raise net production.
Construction and procedure
The construction is to be built according to the drawing with rules of good workmanship.
On the high-precision platform, using theodolite, vertical lines or
All welding will be performed in accordance with drawing and order and UniSite experience and all welding will be continuous and full penetration.other auxiliary tools, to control the deformation, concentricity, length, parallelism.
All fabricated steelwork used in the construction will be to manufacturing standard of normal or classification society.
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)
High accuracy(ISO2768, ISO5817, ISO13920); Detail: ID+/-2mm, Length within 5mm, straightness: <1mm/1m(max5mm)
S355,Q345D,20#,S235JRG2,Q235B,OVAKO280 or other materials
As per drawing
Large-size for the ocean engineering vehicle,High accuracy
Sa2.5 blasted and two or three layers painted with highest quality
as per clients' requirements, normal weld stainless mark plate
material, construction, dimension, welding seam, non defective test, paint inspection
Recyclable, in line with environmental requirements and standards, and reliable
Our office/plant/equipment as follows:
Photos of Hydraulic Water Overflow Pipe
- Material certificates by a classification society EN10204 3.1
- Inspection protocol
- NDT reports
- Fixed certificate: ISO9001, BV certificate, CCS certificate
Besides above the general specifications, we can also supply some overflow and other similar steel structure as clients' requirements.
Package and shipping
bulk package and bulk vessel transportation
container package and container transportation
How to contact us?
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