Dredging & Jetting Pump

Dredging & Jetting Pump

Subsea Pump
The 35 to 60hp Merlin Dredging & Jetting Pump is the successor to the Excalibur. Merlin will not block or jam because there are no moving parts in the suction flow path. The 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 may be rapidly switched from suction to jetting, or be configured to an intermediate position allowing jetting and excavation to be carried out simultaneously.
TMT can customise the tool to suit your requirements.


  • Robust proven design
  • Small and light
  • Double shaft seal
  • Reverse flush for suction nozzle


Dimensions 499L x282W x550Hmm
Weight in Air 40kg
Weight in Seawater 17kg
Max. Input Pressure 170 - 250bar
Max. Input Flow 65 - 110L/min
Output Jetting 600L/min @ 8bar
Output Suction 2000 - 4000L/min
Solids Removal 10 - 40T/hour