Tritech Merlin – ROV Dredge Pump
Excavation and Jetting
The 35 h.p. – 60 h.p. Tritech Merlin dredge pump is the successor to our Excalibur pump and includes improved design features, is smaller, lighter and more robust.
Description
Like all Tritech excavation pumps the 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.
Applications
- Work-class ROVs
- Break up of seabed muds and sands
- Removal of drill cuttings
- Marine archaeology
- Salvage operations
Features
- Modular pump core
- Reverse flush for suction nozzle
- Double shaft seal
- Close fitting inlet strainer option
Benefits
- Robust proven design
- Small and light
- Rapid switching from suction to jetting
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.
The new 35 – 60 h.p. Merlin excavation pump is the must have successor to the Excalibur. Merlin incorporates many of the improved design features introduced on the small Super ZipJet pump which has proven to be so successful.
The pump is smaller, lighter and more robust with greater performance in both excavation and jetting functions. It features the same double seal arrangement as the Super ZipJet and a modular design provides great ease of maintenance.
There are significant efficiency increases in both the impeller and educator making this the tool that no WROV should be without.
Technical information
Hydraulic Motor Input
Pressure: 170 to 250 Bar (2450 to 3600 psi)
Flow: 65 to 110 litres per minute (17 to 29 USgpm)
Actuator
Minimum pressure: 120 Bar (1740 psi)
Maximum pressure: 240 Bar (3480 psi)
Hydraulic Fittings
Motor A & B: No. 12 JIC male
Motor case drain: No. 6 JIC male
Actuator connection: No. 4 JIC male
Output
Jetting performance: Up to 600 litres per minute @ 8 Bar (160 USgpm @ 115 psi)
Suction flow: 2000 – 4000 litres per minute (500 – 1000 USgpm)
Solids removal rate: 10 – 40 tonnes per hour (350 – 1500 lb per minute)
Nozzle and Hose Dimensions
Jetting performance: Up to 600 litres per minute @ 8 Bar (160 USgpm @ 115 psi)
Suction flow: 2000 – 4000 litres per minute (500 – 1000 USgpm)
Solids removal rate: 10 – 40 tonnes per hour (350 – 1500 lb per minute)
Weight and Materials
Weight in air: 40kg (90lb)
Weight in water: 17kg (38lb)
Materials: Stainless steel, Nylacast, UHMWPE
