Matecs: Producing High Pressure Dredge Valves for DEME

Matecs BV, a Roosendaal based developer and producer of metal industrial parts for heavy duty usage, is currently producing high pressure (up to 40 bars) dredge valves for DEME’s newbuilding trailing suction hopper dredger Bonny River.

These valves have been equipped with wear-resistant liners and a specially developed guiding system for the gate.

“All Matecs valves are developed and manufactured entirely in house. Our standard product range can be adapted for use with different pressures or to incorporate various other options and features,” the company stated.

The valves for the trailing suction hopper dredgers Minerva and Scheldt River, also DEME’s vessels, were delivered a few months ago.

The Dual-Fuel Engines 

The multifunctional dredging vessel, named the Bonny River, is the 15,000m³ TSHD and will be supplied with an extended suction pipe, and an additional suction pipe with heavy-duty rock draghead, enabling the vessel to operate in hard soil areas.

The dredger, being built by Royal IHC, will be the first vessel in DEME’s fleet with a closed process water circuit. This minimizes the turbidity generated by overflow water and enables the vessel to dredge in environmentally vulnerable areas.

The hydrodynamic hull and the dual-fuel engines (diesel and LNG) ensure further optimization of fuel consumption levels and a minimal CO2 footprint.

Due to its limited depth when loaded, the Bonny River is also suited to operations in shallow water.

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3rd International Congress Hydraulic Engineering Structures and Dredging

Russia’s leading maritime industry Media Group PortNews ( holds a traditional annual Congress “Hydraulic Engineering Structures and Dredging” in Moscow. 

The two-day Congress includes the 7th International Forum of Dredging Companies and the 3rd Technical Conference “Modern Solutions for Hydraulic Engineering”.

Infrastructure development is among the real sources of Russia’s economy growth. Construction of port facilities and new hydraulic engineering structures on the country’s inland waterways constitute an essential part of all infrastructure projects. It is important to take into account the best international practices to implement these projects effectively.

The program of the Congress will be devoted to the latest technologies for dredging and hydraulic engineering works. Speakers and delegates will refer to real projects to discuss specifics features of dredging works, as well as dedicated fleet and equipment involved.

To learn more about event, please, contact the organizing committee:

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