Merlin ROV Excavation and Jetting System

The Merlin is the successor to the Excalibur pump, which has proved as efficient and reliable as the whole ZipJet family. The Merlin has been designed to avoid any block or jam as there are no moving parts in the suction flow path. A flow reversal valve can be operated to back flush the suction nozzle should there be an obstruction. Power is derived from a stream of high velocity fluid creating a low pressure region behind the suction nozzle.

The pump has three modes of operation and may be rapidly switched from suction to jetting, or be configured to an intermediate position allowing jetting and excavation to be carried out simultaneously.

Merlin has been designed to provide ease of maintenance with a modular pump core. It has many applications including marine archaeology, removal of soft marine growth, deburial of subsea templates and manifolds, removal of drill cuttings and can break up and excavate most seabed types.

There are significant efficiency increases in both the impeller and eductor. The Merlin can be fitted to most work class ROVs.