Tritech Merlin – ROV Dredge Pump – Excavation & Jetting
The 35 h.p. – 60 h.p. Tritech Merlin dredge pump is the successor to Tritech’s Excalibur pump, it includes improved design features as introduced on the smaller Super ZipJet dredge pump.
Description
The Tritech Merlin is smaller, lighter and more robust pump with greater performance in both excavation and jetting functions. It features the same double seal arrangement as the Super ZipJet dredge pump and its modular design provides great ease of maintenance.
There are significant efficiency increases in both the impeller and eductor making this the tool that no work-class ROV should be without. As with all Tritech 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.
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.
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