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This 16-inch diesel powered dredge booster pump unit has been designed in accordance with Ellicott Dredges, LLC’s standard practices for dredging equipment. The main components of the booster pump unit are: a) Ellicott 16-inch dredge pump b) Ellicott close-coupled reduction gear box c) Caterpillar C-27 diesel engine with clutch d) Ellicott 16 inch (406 mm) I.D. suction cleanout e) Radiator cooled engine f) Service water pump and drive g) Set of starting batteries with rack and wiring h) Exhaust pipe with raincap i) Skid base
The booster pump has been designed and built for high hydraulic efficiency for a wide range of dredging conditions. The pump is of the centrifugal, single suction, volute type, directly driven by diesel power through an Ellicott designed close-coupled, totally-enclosed, oil lubricated, speed reduction gear. The direct mechanical connection, from crankshaft to impeller, features high torsional strength through all pump operating speeds. A manually operated, multi-plate clutch is provided between the engine and reduction gear. The pump case and impeller are made of high chrome-carbide alloy or NI-Hard 4 cast iron with a minimum Brinell of 500, but normally in excess of 600. The side heads have renewable, abrasion-resisting cast liners of chrome-carbide or NI-Hard 4 with the same Brinell. The impeller is of the latest Ellicott design with three blades and an 8.4 - inch (213 mm) theoretical particle clearance. Patented* recessed expeller vanes are an Ellicott feature on the impeller shrouds for low wear and high efficiency. The suction side head and the entrance to the impeller are protected from wear by means of a renewable throat piece of chrome-carbide or NI-Hard 4. A cast steel cleanout is included just ahead of the dredge pump to allow for removal of oversized material obstructing the pump. The impeller shaft is of high tensile steel. A stainless steel sleeve is provided on the shaft where it passes through the pump stuffing box. The impeller shaft is an integral part of the totally enclosed reduction gear. A flexible coupling connects the diesel engine to the input shaft of the speed reduction gear. The radial and thrust loads on the pump shaft are carried by anti-friction bearings completely enclosed in the reduction gear assembly.
The Ellicott 16-inch booster pump is equipped with one (1) diesel engine as follows: TYPE AVAIL. H.P. SERVICE STARTING COOLING CAT. C-27 800 Continuous Dredge Electric Radiator @ 1800 RPM Pump Cooled The engine is equipped with instrument panel with essential instruments and alarm system. The engine is warranted at the horsepower rating shown in accordance with the manufacturer's recommendation for the service application.
The entire booster pump module is mounted on a heavy duty welded steel base. This base provides sufficient strength to lift and/or move the booster pump module as a single unit.
The booster pump shall have auxiliary support equipment as follows: a) One (1) service water pump, belt driven from the booster pump engine to provide for: 1) Booster pump gland seal 2) Cooling of lubrication oil 3) Cooling of engine jacket water b) One (1) shell and tube heat exchanger for lubrication oil c) One (1) exhaust pipe with raincap d) One (1) set of starting batteries with rack and wiring
Two (2) sets of manuals shall be provided in the English language, each including the following: • Instructions giving the frequency and specifications for lubrication of the equipment. • Illustrated assembly drawings with part numbers for Ellicott manufactured equipment. • Parts list and available literature for principal equipment purchased by Baltimore Dredges, LLC.
The purchaser is required to supply the following to complete the installation of the booster pump : a) A source of clear water at atmospheric pressure for the service water pump for a total minimum capacity of 250 G.P.M. The water temperature shall not exceed 90oF to provide proper engine cooling. b) A fuel supply tank and piping for the booster pump diesel engine. c) Suitable lights and wiring which may be powered by the 24V. D.C. storage batteries supplied with the booster pump. (500 watts maximum allowable lighting load).
Dredge Booster Pump Make Ellicott Model 16-inch Booster Impeller Diameter - Inches (mm) 38 (965) Particle Clearance - Inches (mm) 8.4 (213) R.P.M. - Maximum 1800 H.P. - Maximum - continuous (kw) 800 (597) Suction Size - Inches (mm) 16 (406) Discharge Size - Inches (mm) 16 (406) Rotation - when viewing suction inlet Clockwise Engine Make Caterpillar Model C-27 H.P. - Maximum (K.W.) 800 (597) R.P.M. - Maximum 1800 Pump and Engine Unit (With Suction Cleanout) Weight - approximate - pounds (kg) 40000 (18,144) Overall Width - Approximate Feet (m) 7 (2.13) Overall Length - Approximate Feet (m) 21 (6.4) Overall Height - Approximate Feet (m) 9 (2.74) Reference Documents TPC 14-38 - Theoretical Performance Curve dated 2/10/81
All the machinery described in these specifications is coordinated to form a balanced operating unit. All materials and machinery components will be new and the workmanship shall be of high order. It is the policy of manufacturer to make continual improvements in the design and manufacture of our products; therefore the right is reserved to modify these specifications to provide for the use of any such improvements which may have been developed prior to the time of actual manufacture.
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