Services
Diving Operations:
At Pygargue LLC, we take pride in our extensive experience and expertise in the field of underwater works. Our qualified teams and state-of-the-art equipment enable us to offer a complete range of services to meet the diverse needs of our clients, whether in maritime environments, inland waters, or confined spaces.
Our Specialties in Underwater Works:
Underwater Cleaning:
We ensure efficient and safe cleaning of submerged structures, including ship hulls, port structures, screens, or dams. Our specialized equipment guarantees impeccable results.
Salvage Operations:
In case of emergencies, we are prepared to intervene in salvage operations, whether for vessels or submerged equipment. Our rapid response can make all the difference.
Formwork,
and Concreting:
We are experts in underwater formwork and concreting for the construction, renovation, or repair of submerged structures such as docks, bridge piers, or marine foundations. We also perform coring to assess the quality of the concrete in your structures.
Installation, Welding,
and Cutting:
Our teams conduct detailed inspections using high-quality underwater photography and videography. This visual documentation is essential for assessing the condition of structures and planning necessary work. We also perform NDT (Non-Destructive Testing) campaigns to evaluate the wear and tear of your submerged installations, whether it's sheet pile curtains, piles, barges, or pipelines.
Photo and Video Inspections and NDT:
Our teams conduct detailed inspections using high-quality underwater photography and videography. This visual documentation is essential for assessing the condition of structures and planning necessary work. We also perform NDT (Non-Destructive Testing) campaigns to evaluate the wear and tear of your submerged installations, whether it's sheet pile curtains, piles, barges, or pipelines.
Works in Contaminated and Confined Environments:
Our expertise extends to confined environments, whether it's interventions in tanks, galleries, water supply wells, or contaminated environments such as nuclear power plants or sewage treatment facilities. The use of specialized equipment (pressurized diving suits and helmets) as well as the assignment of experienced divers specialized in this field are essential for carrying out these interventions, which combine the risks of diving with those of confined and/or contaminated environments. At Pygargue LLC, we excel in this field and are trained to work safely in these unique conditions.
Safety and the Environment:
At Pygargue LLC, safety is our top priority. All our underwater works are carried out in compliance with the strictest safety standards, and we take every measure to minimize our impact on the environment.
Underwater Works on Dams:
At Pygargue LLC, we take pride in our extensive experience and expertise in the field of underwater works. Our qualified teams and state-of-the-art equipment enable us to offer a complete range of services to meet the diverse needs of our clients, whether in maritime environments, inland waters, or confined spaces.
Our Underwater Works Services:
ROV and Diver
Inspection:
Our team of qualified experts conducts thorough inspections of dams using remotely operated underwater vehicles (ROVs) and professional divers. We identify potential issues, wear areas, and maintenance needs, ensuring effective preventive maintenance.
Water Intakes and Bottom Valves:
Water intakes and bottom valves are crucial for flow regulation and water resource management. We perform cleaning, maintenance, or repairs to ensure their proper operation.
Dredging Works:
Dredging is essential to maintain the storage capacity of dams and prevent siltation or to access silted components. Our state-of-the-art equipment allows us to carry out dredging operations efficiently while minimizing environmental disruptions.
Competence and Versatility:
At Pygargue LLC, our versatility is our strength. Whether using advanced technologies like ROVs or relying on experienced divers, we are ready to tackle any challenge to ensure the integrity of dams.
Installation of Hydromechanical Components:
We are proficient in the installation of complex hydromechanical components, whether for closing a bottom valve or installing cofferdams. We work closely with our clients and hydromechanical partners to provide tailored closure solutions suitable for underwater installation and enabling safe dewatering of the closed component. Our teams are trained to work in complex underwater conditions and ensure reliable results.
Quality and the
Environment:
We are committed to quality and environmental protection. All our underwater works are carried out in accordance with the strictest standards to minimize our impact on aquatic ecosystems.
Pipeline Installation and Submarine Pipeline Installation:
At Pygargue LLC, we take pride in our extensive experience and expertise in the field of underwater works. Our qualified teams and state-of-the-art equipment enable us to offer a complete range of services to meet the diverse needs of our clients, whether in maritime environments, inland waters, or confined spaces.
Our Submarine Pipeline Installation Services:
Drinking Water Networks:
Access to clean drinking water is fundamental for communities and industries. We excel in the installation of underwater pipelines made of HDPE (High-Density Polyethylene) to convey water from lakes or rivers to consumption areas, ensuring reliable and high-quality supply.
Lake Heat Exchange:
Our expertise extends to the creation of underwater heat exchange systems, ensuring optimal thermal efficiency for various industrial applications, whether for cooling or heating.
Design and Engineering:
Precise design and engineering are crucial for the success of any submarine pipeline installation project. Our team of experts collaborates closely with our clients and partners to choose the most suitable material for their needs, whether it's HDPE, steel, or FRP. We calculate the appropriate concrete collars for long-term durability in local weather conditions and define installation parameters (pulling force at the end of the pipeline, internal pipe pressure, immersion speed) based on the topography, depth, and type of material used to ensure that minimum bending radius are not exceeded during installation. We assist our clients in defining the route based on the topographic survey we conduct and determining the type of land-lake transition, whether it be a V-shaped trench, a shielded trench, or directional drilling or TBM. We also develop a maintenance strategy for the pipeline and intake to prevent quagga mussel infestation.
Installation and Maintenance:
We provide professional installation of underwater pipelines made of HDPE, steel, or FRP, and we remain available for regular inspection and maintenance, ensuring the continuous performance of your infrastructure.
Quality and the Environment
At Pygargue LCC, our commitment to quality and the environment is unwavering. We choose materials based on their durability and environmental impact, ensuring reliable and environmentally friendly solutions.
Mastery of Materials:
At Pygargue LLC, we have perfected the use of various materials for the construction of underwater pipelines:
Steel:
Steel is known for its structural strength and durability. We use steel for projects involving pressurized gas transport in accordance with current regulations or at the client's request.
HDPE
(High-Density Polyethylene):
Lightweight, durable, and corrosion-resistant, HDPE is ideal for drinking water or remote lake heating pipelines. We use this material to ensure a clean and secure water supply. Its installation is easy and requires less heavy equipment compared to FRP and steel pipelines.
FRP
(Fiber Reinforced Plastic):
FRP offers excellent chemical resistance and is ideal for marine applications. We use it to ensure the durability of our installations in demanding environments. It becomes competitive for shallow depth pipelines.
Special Pipelines:
For specific applications, we install pipelines with special coatings, including ceramic-lined steel and HDPE or reinforced concrete steel pipes, or even cast-iron pipelines. We are equipped to install all types of pipelines.
Suction Strainers:
Drawing on our experience, we design water intake or discharge systems for scraper or pigging cleaning without the need for divers' intervention. The intake head can be raised to the surface simply using a boat and an ROV (Remotely Operated Vehicle). We provide guidance on material selection, whether it's HDPE, stainless steel, or cupronickel, which, due to its biocidal properties, limits the appearance of quagga mussels.
