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Defence Solutions

Drass DG550 continues the legacy of our Italian-made Compact Submarines, based on the traditional design which was a huge success worldwide.
The Compact Submarine’s success is due to the geniality of design, its simple hull construction, the reliability of the on-board equipment, as well as its ease of operability and maintainability.
Furthermore, with the Compact Submarine the end user is self-sufficient in the operation of a craft dedicated to operations in Brown and Blue Waters, and, thanks to the unique design also in its maintenance.

DG550

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With the DG350 Drass continues the legacy of our Italian-made Compact Submarines, based on the traditional design which was a huge success worldwide. The Compact Submarine’s success is due to the geniality of design, its simple hull construction, the reliability of the on-board equipment, as well as its ease of operability and maintainability.
Furthermore, the Compact Submarine makes the end user selfsufficient in the operation and maintenance of a craft dedicated to operations in littoral waters, including disassembly and reassembly for ease of maintenance or modernization.

DG350

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With the DG160 Drass continues the legacy of our Italian-made Midget Submarines, based on the traditional design which was a huge success worldwide. The Midget’s success is due to the geniality of design, its simple hull construction, the reliability of the on-board equipment, as well as its ease of operability and maintainability. Furthermore, the majority of Midget Submarines manufactured in the second half of the nineties have made the end user self-sufficient in the operation and maintenance of a craft dedicated to covert operations, including disassembly and reassembly for over-land transportation.

DG160

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With the DG120 Drass continues the legacy of our Italian-made Midget Submarines, based on the traditional design which was a huge success worldwide. The Midget’s success is due to the geniality of design, its simple hull construction, the reliability of the on-board equipment, its ease of operability and maintainability.
Furthermore, the majority of Midget Submarines manufactured in the second half of the nineties have made the end user self-sufficient in the operation and maintenance of a craft dedicated to covert operations, including disassembly and reassembly for over-land transportation.

DG120

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With the DG85 Drass continues the legacy of our Italian-made Midget Submarines, based on the traditional design which was a huge success worldwide. The Midget’s success is due to the geniality of design, its simple hull construction, the reliability of the on-board equipment, its ease of operability and maintainability.
Furthermore, the majority of Midget Submarines manufactured in the second half of the nineties have made the end user self-sufficient in the operation and maintenance of a craft dedicated to covert operations, including disassembly and reassembly for over-land transportation.

DG85

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The DS8 SDV is a highly effective, insidious and stealthy warfare submersible craft for sabotage and intelligence missions. The DS8 is designed to transport its offensive equipment and up to eight combat divers, from the operational base (such as a ship or submarine) to the target (such as a moored/anchored ship, a harbor or coastal installation), and to transport them back to the base once the mission is complete.

DS8

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The Drass SDV DS4 is a highly effective, insidious and stealthy warfare submersible craft for sabotage and intelligence covert missions. The Drass DS Class SDV is designed to transport its offensive equipment and commandos/combat divers, from the operational base (such as a ship or submarine) to the target (such as a moored/ anchored ship, a harbor or coastal installation), and to transport them back to the base once the mission is complete.

DS4

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Rescue Solutions

The 238 ST (Diving Rescue Support Vessel) is capable to perform Submarine Rescue Operations up to a depth of 650msw thanks to the moon pool launched Drass Deep Rescue Vehicle (DRV). The vessel is equipped with a compact 12-man in-built Saturation Diving System rated 300msw. The vessel hosts an in-built Drass Submarine Ventilation System rated for 650msw and a Working ROV. This vessel design is suitable to operate in extreme sea conditions. Thanks to the increased dimensions and the large main deck, the vessel can be used as a flexible Multipurpose Rescue and Salvage Vessel, and can perform diving, inspection, repair and maintenance for underwater operations.

ST-238

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The 236 ST (Diving Rescue Support Vessel) is capable of performing Submarine Rescue Operations up to a depth of 650msw thanks to the moon pool launched Drass Deep Rescue Vehicle (DRV). The vessel is equipped with a compact 9-man in-built Saturation Diving System rated to 300msw. The vessel hosts an in-built Drass Submarine Ventilation System rated for 650msw and a Working ROV. This vessel design is suitable to operate in extreme sea conditions.

ST-236

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The 230 ST (Diving Rescue Support Vessel) is able to perform Submarine Rescue Operations up to a depth of 300msw with Drass Rescue Capsule SR11 and ancillary equipment. The vessel is equipped with a compact 6-man in-built Saturation Diving System rated to 120msw. The vessel’s main deck is designed to operate Drass Submarine Ventilation System rated to 300msw and a working ROV. This vessel design is suitable to operate in rough, but not extreme, conditions at sea.

ST-230

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DRASS DRV is a modern, effective and reliable rescue vehicle, remotely operated and launched from the moon pool. DRASS DRV is capable of the most extended endurance in intense weather conditions – operating in very rough seas and connecting to the DISSUB even during extreme angle inclination.
The DRV moon pool launch offers the highest reliability and safety standards even in extreme sea conditions thanks to the rail guides and protection of a passive cursor. The cursor extends outside the ship keel, protecting the DRV from accidental bumping against the hull. The main wire pulls the DRV gently into the cursor which is conically shaped to connect with the entrance of the DRV frame.

Rescue System

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Drass Submarine Ventilation System is designed to provide sufficient ventilation to a DISSUB even in the most challenging and distressed emergency situations.
The concept of DRASS SVS is based on the utilization of an underwater Ventilation Capsule, containing a suction compressor which is therefore positioned immediately adjacent to the DISSUB. Thanks to the minimal size and length of the suction line, the compressor can satisfy the requirement of air recirculation without any pressure build-up inside the DISSUB, thereby operating at atmospheric pressure. By maintaining the atmospheric pressure in the Submarine, the evacuation of the DISSUB is achieved with a simpler, safer and faster procedure at every depth.
Traditional ventilation systems, on the other hand, which operate at depths of up to 650msw require a progressive increase in pressurization from a surface pump. The pressurization process requires complex and long decompression procedures and imposes transfer under pressure to a hyperbaric chamber after the evacuation from the submarine. Excess of pressure in the submarine can also cause saturation issues in the crew, with serious consequences during rescue and transfer operations.
Keeping the DISSUB at lower pressure values, however, would mean providing an insufficient flow of air to the DISSUB. While this is not perceived in a standard submarine ventilation exercise, in real operations the provision of insufficient flow of air can have fatal consequences for the DISSUB personnel due to the degradation of O2 content and the quick build-up of CO2.
The performance of Drass SVS instead is independent of the depth of the DISSUB thereby ensuring that performance quality is not restricted by time and depth variables.

Ventilation System

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Recreational Solutions

The Drass Diving Support Boat (DSB) is a class of uniquely designed boats embedding a hyperbaric diver decompression chamber (DDC) for treatment and prevention of decompression sickness. Drass DSB houses the DDC just above the keel level, giving the boat a much better stability when compared to vessels of similar dimensions. This ingenious solution enables a boat of limited dimensions to operate a DDC, whilst also leaving most of the open deck available for routine operations and safe navigation in high seas, thereby enhancing the boat’s effectiveness. Drass DSB comes fully equipped with a complete hyperbaric unit, including DDC, control panel, air storage, HP air compressors, filters and diver panels where required. Thanks to these combined features, Drass DSB is a multi-application rescue vessel that can be specifically configured for use by coastguard, navies, governmental emergency response teams, commercial and recreational diving companies. Drass DSB48 doubles up as an ideal mother vessel/rescue vessel for recreational scuba. It offers dive operators, divers onboard and those in the locality, the safety of a hyperbaric chamber in remote diving locations. Thanks to its limited dimensions, DSB48 is also the perfect boat for commercial diving in shallow waters of harbors or coastal areas, offering increased safety during prolonged diving operations. The use of a rescue boat in touristic areas makes it possible to provide a decompression facility as a first aid emergency response, significantly increasing the chances of saving human lives at sea when encountering incidences of decompression illness. The vessel can comfortably accommodate 14 divers plus the marine crew, and the DDC is designed for 2-men occupancy. On stern, the hull has a central passageway to permit entry of a stretcher into the 1300mm DDC. The DDC is PED compliant (European Pressure Equipment Directive 2014/68/EU), designed and built according to EN13445, and with a working pressure of 18 msw.

Boat

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Scuba

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Diving Products

DRASS Galeazzi, founded in 1927 with the aim of designing and manufacturing diving systems and equipment, invested heavily into fostering innovation design of its products. The industry had been utilizing a cylindrical shape for deep dive products, but when Drass Galeazzi introduced the spherical shape to the world, great depths were suddenly reachable and new frontier opened up for everyone. Throughout the years, DRASS Galeazzi has continued its tradition of innovation and with extensive field experience coupled with decades of innovative equipment development, DRASS Galeazzi Research and Development Department initiated in 2017 its newest challenge of designing and developing a Diving Helmet called the D-ONE. All of the progress and innovative design techniques that DRASS R&D has developed, comes from creating equipment that is at the cutting edge of technology and production quality. This ensures the highest level of safety for the operators involved in the Commercial Diving activities and, at the same time, satisfies the desire for stunning design as per typical Italian tradition. DRASS R&D Team is not comprised simply of highly skilled Design Engineers, but also includes Professionals with wide-ranging experience in the Commercial Diving sector. This culmination of experience, professional diversity, and innovative focus has enabled the development of products that provide extraordinary value and set us apart from our competitors. Much of the team being physically and personally connected with the Oil & Gas Commercial Diving sector for decades has provided invaluable insight. This extensive and increasingly rare experience is always incorporated into every detail of every product we manufacture. It allows for a dynamic and methodology within Drass which drives innovation and keeps us at the forefront of the industry year after year. The D-ONE represents the highest echelon of product which DRASS proudly offers in the marketplace. Confident that the proposed innovations will maximize Diver safety and comfort while providing ergonomic implementation and usage practicability, Drass believes the D-ONE can greatly serve the interests of the Operators in this technological and demanding sector. This Helmet has been tested for air use up to -50 msw as per “European Standard EN 15333-1” of January 2008, “Respiratory equipment – Open-circuit umbilical supplied compressed gas diving apparatus – Part 1: Demand apparatus” and EU Directive “EU 2016/425” that substitutes “EU 89/686/EEC”. It is CE marked with the second stage balanced demand regulator and oral nasal mask HT-01 MKI.

D-ONE

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