Hydraulic Propulsion Selection Manual for Engineers
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Hydraulic Propulsion Selection

Propulsion Products Since their launch in 1998, Sub- Atlantic's 'SA' range of hydraulic thrusters have been selected for cable burial/maintenance vehicles. Working in this highly aggressive environment, they have become renown for their reliability, considerable benefits to be gained, having been selected for the majority of 'new design' systems such as Stolt Offshore's, 'SOLO Mk II', Thaïes Geosolutions's 'G3' or Deep Ocean's 'Insta/Ier'. 'SA' Range of Hydraulic Thrusters We offer a 'Preferred Range'and a 'Non-StandardRange'of hydraulic thrusters. Our 'Preferred Range' is available in 60 &...

Infact, some of the data proved to be theoretically impossible to achieve. Sub-Atlantic therefore introduced a policy to ensure that all our own test performance data was witnessed by a reputable third party certification organisation (DNV). It is this commitment and confidence in our product that will give you peace-of-mind. Remember and ask for independently witnessed test data before you purchase your system or better still, test it yourself. If they can't provide it, ask Main Features In addition to peace-of-mind, our hydraulic thrusters will provide you with the following benefits:...

Preferred Range The standard Range consists of the following four units: - These are the most common types available and should be selected where possible. Non-Standard Range Different Motor/Propeller Combinations The VOAC motors used all have identical mounting interfaces to the thruster body, no matter the motor displacement. This makes them particularly suitable for interchanging with different propeller sizes to obtain higher running efficiencies. For example, in an application where limited hydraulic power and oil flow is available but maximum thrust is required, an SA-380-40 thruster...

Different Motor Manufacturers Thrusters are also available with conversion kits which allow different motors to be used, such as Rexroth. Contact and we will advise you of these options. Special Sizes In certain cases, we may be able to supply special sizes. Sub-Atlantic thrusters are tested at a depth of approx. 2.7 metres below the surface. The general procedure is illustrated on Drawing No. 0438-GA attached. All testing is witnessed by DNV who issue a certified certificate of authenticity.

Installation Drawings The following General Arrangement drawings are attached: - Performance Graphs Comprehensive graphs are attached which allow an engineer to fully quantify performance at bollard condition through to 6 knots advance speed. SA-300 Thrust versus Hydraulic Power_ SA-300-30 cc Thrust versus Pressure & Flow @ 0 Knots_ SA-380-30 cc Pressure versus Thrust & Flow @ 0,1.5, 3.0, 4.5 & 6.0 Knots_ SA-380 Thrust versus Hydraulic Power_ SA-380-40 cc Thrust versus Pressure & Flow @ 0 Knots_ SA-380-40 cc Pressure versus Thrust & Flow @ 0,1.5, 3.0, 4.5 & 6.0 Knots_ SA-420 Thrust versus...

Other Equipment Available Servo-Valve Pack This extremely compact servo valve pack This valve pack is generally used to provide precise control of the propulsion thrusters on underwater vehicles. The pack utilises 77 LPM rated servovalves which provide low pressure drop on most standard ROV applications. The use of this pack in conjunction with Sub- Atlantic's efficient thrusters and hydraulic power units, will produce an unbeatable propulsion solution with regard to reliability, efficiency and The valves can also be used to control any tool requiring a vazriable speed or reversible...

75 & 110 kW Hydraulic Power Units (HPU) These HPUs are ideal for driving thruster systems and hydraulic tools requiring higher power inputs. The submersible motor unit can also be used to drive other types of rotating machinery such as water pumps for trenching machines. The motor uses a Zeihl-Abegg rotor/stator unit which has for many years been industry. The standard motor is 4 full load speed @ 60Hz. Other voltage and speed options are The motor body and end cap design provides for efficient heat dissipation, which is essential when working in hot climates. Motor winding temperature and...

THE INFORMATION CONTAINED IN THIS DRAWING IS THE SOLE PROPERTY OF SUB-ATLANTIC LTD. ANY REPRODUCTION IN PART OR WHOLE WITHOUT THE WRITTEN PERMISSION OF SUB-ATLANTIC IS PROHIBITED THIRD ANGLE PROJECTION 1. THRUSTER IS FIXED BY 4 OFF Ml 2 BOLTS TO HOST STRUCTURE. IF REQUIRED ADDITIONAL MIO BOLT CAN BE FITTED THROUGH THE TORQUE RESTRAINT HOLE. USING THIS HOLE WILL ELIMINATE TORQUE EFFECTS TO THE HOST THRUSTER STRENGTH. 2. BEARING HOUSING IS SUPPIED WITH 5 OFF AIR BLEED POINTS POSITIONED TO ALLOW THE REMOVAL OF AIR WITH THE THRUSTER MOUNTED IN ANY ORIENTATION. TWIST SCREW ONE TURN TO BLEED AIR...

THE INFORMATION CONTAINED IN THIS DRAWING IS THE SOLE PROPERTY OF SUB-ATLANTIC LTD. ANY REPRODUCTION IN PART OR WHOLE WITHOUT THE WRITTEN PERMISSION OF SUB-ATLANTIC IS PROHIBITED THIRD ANGLE PROJECTION THRUSTER IS FIXED BY 4 OFF M12 BOLTS TO HOST STRUCTURE. IF REQUIRED ADDITIONAL MIO BOLT CAN BE FITTED THROUGH THE TORQUE!" RESTRAINT HOLE. USING THIS HOLE WILL ■ ELIMINATE TORQUE EFFECTS TO THE HOST 60 2. BEARING HOUSING IS SUPPIED WITH 5 OFF AIR BLEED POINTS POSITIONED TO ALLOW THE REMOVAL OF AIR WITH THE THRUSTER MOUNTED IN ANY ORIENTATION. TWIST SCREW ONE TURN TO BLEED AIR THEN TIGHTEN. 3....

THE INFORMATION CONTAINED IN THIS DRAWING IS THE SOLE PROPERTY OF SUB-ATLANTIC LTD. ANY REPRODUCTION IN PART OR WHOLE WITHOUT THE WRITTEN PERMISSION OF SUB-ATLANTIC IS PROHIBITED DUE TO OUR POLICY OF CONTINUAL PRODUCT DEVELOPMENT, SUB-ATLANTIC RESERVE THE RIGHT TO CHANGE THE INFORMATION CONTAINED IN THIS DRAWING WITHOUT PRIOR NOTICE. THIRD ANGLE PROJECTION 1. THRUSTER IS FIXED BY 4 OFF M12 BOLTS TO HOST STRUCTURE. IF REQUIRED ADDITIONAL M12 BOLT CAN BE FITTED THROUGH THE TORQUE RESTRAINT HOLE. USING THIS HOLE WILL ELIMINATE TORQUE EFFECTS TO THE HOST THRUSTER STRENGTH. 2. BEARING HOUSING IS...

THE INFORMATION CONTAINED IN THIS DRAWING IS THE SOLE PROPERTY OF SUB-ATLANTIC LTD. ANY REPRODUCTION IN PART OR WHOLE WITHOUT THE WRITTEN PERMISSION OF SUB-ATLANTIC IS PROHIBITED DUE TO OUR POLICY OF CONTINUAL PRODUCT DEVELOPMENT, SUB-ATLANTIC RESERVE THE RIGHT TO CHANGE THE INFORMATION CONTAINED IN THIS DRAWING WITHOUT PRIOR NOTICE. THIRD ANGLE PROJECTION THRUSTER IS FIXED BY 4 OFF M12 BOLTS TO HOST STRUCTURE. IF REQUIRED ADDITIONAL M16 BOLT CAN BE FITTED THROUGH THE TORQUE RESTRAINT HOLE. USING THIS HOLE WILL ELIMINATE TORQUE EFFECTS TO THE HOST THRUSTER STRENGTH. 2. BEARING HOUSING IS...