DWTEK products complement Dockstr’s used equipment
As the exclusive ROV distributor of DWTEK in Europe, the Middle East, and the Americas, Dockstr offers its clients Remotely Operated Vehicles and associated products and accessories from DWTEK, a leader in remote intervention solutions serving the marine construction industries.
Solutions covering the entire spectrum of ROV operations
From high-thrust inspection vehicles to work-class systems and covering applications from deepwater to high-current environments, DWTEK ROVs have a solution for most remote operations.
The observation/inspection class i90+ gives optimal performance, having proved itself in harsh conditions found in some near-shore offshore renewable developments;
All-electric, 2,000m rated and high configurability, The Monew light work ROV offers operators a compact, ultra high-thrust option for construction, maintenance and repair tasks;
Using mainly in-house developed products such as underwater cameras, thrusters and subsea lights, DWTEK is able to offer a comprehensive support structure with minimal external supply constraints;
The DWTEK Subsea connector range offers proven underwater connectors and cable assemblies for applications beyond just Remote Operated Vehicles including AUV and deepwater tooling applications.
Main system specifications:
Dimensions (L x W x H): 1100 x 700 x 530 mm
Weight in air: 130 kg
Depth rating: 500 m (1,000 m optional)
Payload: 25 kg
Power: Input 220V, 50/60Hz. Output: 300VDC (6kW)
Data/Comms: via optical fibre
Cameras: 1x HD (standard) + up to 4x SD (optional)
Sensors (standard): heading + depth
Propulsion: via 4x horizontal, 2x vertical magnetically-coupled DC thrusters
Thrust (fwd/lat/vert): 70 / 60 / 48 kgf
Highly expandable (spare comms): 2x Ethernet, 2x RS232, 1x RS485, 1x Fibre, 2x Composite video
Scope of supply in standard configuration
In standard configuration, the i90+ is supplied with the following equipment:
Topsides: Main console, Industrial PC, 17” LCD Monitor, DVR, LIM, Power cable, tether j/b;
Hand controller c/w integral 7” touch screen;
10m Deck cable;
300m High-strength tether;
500m rated ROV (vehicle) including:
1x HD camera on tilt servo;
2x 150W LED lights (dimmable);
CG-1000 navigator (incl. pressure/depth indicator, gyro, G sensor, compass).
Spares kit;
Training for personnel at DWTEK facilities or onsite.
Investigator 90+ Options
The i90+ is capable of interfacing and deploying a wide-range of sensors and tooling including:
Tether handling/management:
Hand operated cable reel
Electric cable reel
TMS
Deployment: Running lock and latch (full LARS if required)
Tooling/Intervention: Tooling skid + 5 fn manipulator
Navigation & Positioning (examples):
Sonar (Tritech, Kongsberg, Blueview)
Multibeam (Teledyne, Blueview)
Altimeter (Tritech, Valeport)
DVL (Nortek)
Fibre Optic Gyro (DWTEK)
USBL (Sonardyne, Tritech, Kongsberg)
Beacon/Flasher
Cameras and Lighting: additions available on request
More than just an ROV manufacturer…
Relying on your supply chain for critical components such as thrusters, connectors, cameras and lights exposes your end-clients to risk that can be outwith your control. DWTEK develops most of their in-house components used on their ROVs thereby giving a greater level of control when it comes to supporting their clients.
And of course these components can be used as stand-alone products in other applications such as intervention tooling or as upgrades for existing remote systems.
ROV lock and latch (running latch)
This lock and latch system is typically used in the deployment and recovery of ROVs operating in free-swimming mode. The system comprises a ‘bullet’ that attaches to the ROV lift point and a ‘running latch’ that slides or ‘runs’ along the tether or umbilical and is connected to the deployment/recovery wire (usually a deck mounted crane or winch).
During deployment, the bullet and running latch are locked together allowing the ROV to be lowered into the water. Once in the water, the latch mechanism is manually activated at which point the bullet disconnects from the latch and the ROV is freed from the deployment/recovery wire and can be deployed to depth.
Recovery of the ROV is the reverse of deployment. The latch mechanism is lowered down (along) the tether until it automatically latches onto the bullet (using gravity) at which point the ROV can be recovered to deck.
Versatile deployment options
Manufactured from stainless steel, the lock and latch system is available in different configurations and for different types of ROV or other deployment applications:
Three options with different internal (cable) diameters: 20mm, 22mm and 35mm;
Lock (bullet) length: 160mm, 200mm and 320mm;
Safe working load (SWL): 0.5 Ton or 2 Ton;
Designed to be gentle on the tether/umbilical;
Easy-to-use gate mechanism allows for quick and simple tether removal;
Compatible with a number of Remotely Operated Vehicles such as the Saab Seaeye Falcon, the DWTEK Investigator 90+ and most other observation/inspection ROVs;
Custom designed versions available for deployment of bespoke underwater packages. Contact us for options.
Subsea connectors from DWTEK
We offer an extensive range of proven subsea connector systems for use in subsea instrumentation, sensor, control system, ROV, and AUV applications. Available in wet-mate or dry-mate configurations and with options to supply bulkhead, inline, over-mould and dummy connectors in addition to complete cable assemblies.
Subsea connectors
DWTEK connectors are proven to be used in subsea instrumentation, sensor, control system, ROVs, and AUVs applications.
These connectors have superior chemical resistance, high-pressure rating, excellent electrical properties, and outstanding hydrolysis resistance.
Compatible with industry standards and suitable for various underwater applications.
The connectors are capable to provide stable and high-speed underwater connectivity and power supplement.
Wetmate Connectors
Immerse yourself in the depths of the ocean with Wetmate connectors. These robust and corrosion-resistant solutions are designed to withstand the harsh
marine environment, ensuring reliable and uninterrupted connections even under the most demanding conditions. From oil and gas exploration to offshore wind power, Wetmate connectors are the trusted choice for professionals who demand the highest levels of performance.
See below.
Drymate Connectors
Marine equipment is at the heart of everything we do, from the tangible supply of ROV or diving systems to the intangible provision of technology strategies or asset valuations.
Our detailed knowledge of the equipment supply chain, backed by a comprehensively developed data set means that both buyers and sellers are able to benefit from our unrivaled track record.
More info here.
Dockstr supporting your technology needs
Our expertise in remote intervention technology and operations, gained over four decades, allows Dockstr to match our customer requirements to those products within the DWTEK offering that best meets their needs.
And as the market for remote technology evolves, with greater focus on energy transition, autonomy and onshore piloting, finding the right products and equipment becomes increasingly important. To that end, Dockstr is ideally placed to play a part in your upcoming equipment selection and acquisition.
Stefan Didora
Tel: +46 73 58 58 424
stefan@dockstr.com