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A complete range of trailing pipe components
Whether you are a dredging contractor or dredge repair yard, you may need to replace trailing pipe components. These individual components are available for the replacement or upgrade of a suction pipe of a hopper dredger. A complete fit for purpose range of dredging equipment is available to ensure optimal production of your hopper dredge.
Fit for purpose dredging components
► A trailing suction pipe consists of a number of essential components to ensure optimal dredge production. Each of these components, whether it is a drag head, pipe hinge or turning gland, may need replacement. Damen offers a complete line of dredge components, all designed and manufactured in-house, made to boost your operational efficiency.
Easy integration dredging components
► Trailing suction pipe components keep the pipe flexible and optimise dredge production. They can be supplied as single items or as part of a complete dredge system.
Boost your production
► A drag head is a vital element in optimising the production of your dredger. The jet water assisted single visor drag head has been designed to achieve the best possible soil cutting properties, combined with an optimised mixture flow. The soil, whether from the sea bed or from a river bottom, is liquefied by the water jets, and captured by the drag head for transport to the hopper hold. The wear resistant drag head has been fitted out with easily replaceable wear blocks and teeth. Mounting is practical due to the robust flange connections.
Full flexibility
► A trailing pipe needs flexibility; it is to be able to move freely relative to the hopper dredger’s hull. A double hinge, situated approximately midway in the suction pipe, allows for both vertical and horizontal movement of the lower trailing pipe. The cardan hinge is fitted out with a robust hinge ring, a wear resistant suction hose and a jet water hose to bridge the hinge. For easy integration both pipe ends are fitted with heavy-duty flanges.
Safe distance
► At the top of a trailing pipe, between the upper pipe and the hull connection, a single hinge is mounted. This single hinge ensures that the trailing pipe can move away from the hopper dredger’s hull safely during dredge operations. A single hinge includes heavy duty mixture piping, a wear resistant suction hose, hinge arms and flanged connections.
Follow the profile
► Allowing the drag head to follow the bottom profile ensures an optimal vacuum within the drag head. This movement around the pipe’s axis is ensured by a turning gland. The turning gland consists of two flanged pipe pieces turning on self-lubricating grey cast steel. Thus, the turning gland enhances maneuverability of the drag head, and contributes to safe and efficient dredging operations.
Dredge components equipment package
► Trailing pipe components are supplied as single items for dredge pipe upgrades. Yet, a technical survey may reveal that the complete trailing pipe needs replacement. Both single dredge components and full dredging packages can be supplied.
