RDF Underwater Lifting Unit - RDF 1000
| Part No. | Load | Diameter | Length | Straps | Height | Weight Steel Rod | Total Weight |
| RDF 1000 | 1000 KG | 1050 MM | 1500 MM | 2 | 525 MM | 10 KG | 25 KG |
Underwater lifting units are designed for:
- securing loads,
- transporting loads on the surface
- or dismantling ships.
With the possibility of customized design and construction, they can meet the demands of a range of markets. Not only can they assist the buoyancy of an object or ship on the surface, but they can also be employed to easily raise and lower loads underwater.
Choose your option
RDF Underwater Lifting Unit - RDF 3000
| Part No. | Load | Diameter | Length | Straps | Height | Weight Steel Rod | Total Weight |
| RDF 3000 | 3000 KG | 1250 MM | 2900 MM | 4 | 625 MM | 45 KG | 73 KG |
Underwater lifting units are designed for:
- securing loads,
- transporting loads on the surface
- or dismantling ships.
With the possibility of customized design and construction, they can meet the demands of a range of markets. Not only can they assist the buoyancy of an object or ship on the surface, but they can also be employed to easily raise and lower loads underwater.
Choose your option
RDF Underwater Lifting Unit - RDF 5000
| Part No. | Load | Diameter | Length | Straps | Height | Weight Steel Rod | Total Weight |
| RDF 5000 | 5000 KG | 1500 MM | 2900 MM | 5 | 750 MM | 50 KG | 86 KG |
Underwater lifting units are designed for:
- securing loads,
- transporting loads on the surface
- or dismantling ships.
With the possibility of customized design and construction, they can meet the demands of a range of markets. Not only can they assist the buoyancy of an object or ship on the surface, but they can also be employed to easily raise and lower loads underwater.
Choose your option
RDF Underwater Lifting Unit - RDF 8000
| Part No. | Load | Diameter | Length | Straps | Height | Weight Steel Rod | Total Weight |
| RDF 8000 | 8000 KG | 1890 MM | 2900 MM | 5 | 945 MM | 70 KG | 130 KG |
Underwater lifting units are designed for:
- securing loads,
- transporting loads on the surface
- or dismantling ships.
With the possibility of customized design and construction, they can meet the demands of a range of markets. Not only can they assist the buoyancy of an object or ship on the surface, but they can also be employed to easily raise and lower loads underwater.
Choose your option
RDF Underwater Lifting Unit - RDF Custom
| Part No. | Load | Diameter | Length | Straps | Height | Weight Steel Rod | Total Weight |
| RDF Custom | TBD | TBD | TBD | TBD | TBD | TBD | TBD |
Underwater lifting units are designed for:
- securing loads,
- transporting loads on the surface
- or dismantling ships.
With the possibility of customized design and construction, they can meet the demands of a range of markets. Not only can they assist the buoyancy of an object or ship on the surface, but they can also be employed to easily raise and lower loads underwater.
Choose your option
RDF Underwater Lifting Units
Underwater lifting units are designed for:
- securing loads,
- transporting loads on the surface
- or dismantling ships.
With the possibility of customized design and construction, they can meet the demands of a range of markets. Not only can they assist the buoyancy of an object or ship on the surface, but they can also be employed to easily raise and lower loads underwater.
Choose your option
Retention Tank
The flexible retention tank acts primarily as a double wall for flexible tanks. It is mainly used for liquid fertilizer tanks, oil storage tanks and fuel bladder.
Indeed, in case of a problem during the use of the flexible tank, the losses of fuels and oils are retained in the retention. Thus, the impact on the environment is minimized.
The flexible retention is a tailor-made solution. Several flexible tanks can be installed in the same retention tank depending on the dimensions.
Secondly, the retention tank can also contain rigid elements. Oil processing machines (or other fluids) as well as transformers and hydraulic systems can be installed there. During maintenance, they are isolated from their environment.
These flexible retentions are equipped with a metal frame made of galvanized steel. It is made of identical tubes and joints that make it easy to assemble. The flexible bund is easy and quick to deploy, about 20 minutes, and requires only 2 people for installation.
The retention can be accompanied by a drainage and rainwater filtration kit. This kit allows to filter hydrocarbons from the rainwater contained in the retention. Also, it allows the retention to remain empty and clean.
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Rip-Out Diaphragm Closure
The rip-out diaphragm closure, equipped with a cruciform piercing tool, provides different functions:
- buoyancy assistance for large platforms equipped with metal floatation tanks,
- corrosion protection for electrical outlet cables.
Made from high resistance rubber coated fabric and assembled by hot vulcanization, our rip-out diaphragm closure is designed to consider:
- Leg ID
- Thickness of the leg
- Water depth
This is a solution for your oil & gas project.
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Rubber Bag Transformer - STP
The STP rubber bag transformer is used to protect the dielectric oil in power transformers. It is also called a flexible separator or compensation balloon.
The STP inflates and deflates by compensating for the change in volume. It provides separation between air and oil inside the hydraulic conservator. This avoids: oil pollution, condensation, oxidation, and hydrolysis
Thus, the system protects the dielectric oil from external contamination.
The flexible separator has a high mechanical strength. In addition, it is impermeable to gases, oils and water. These characteristics make this transformer conservator airbag an efficient compensator for the protection of electrical transformers.
Assembled by hot vulcanization in autoclave, no leakage is possible. We manufacture this product to measure (material, dimensions, flange and fixing brackets). This rubber bag transformer can then have different shapes according to your needs: cylindrical, rectangular, elliptical, or even special shapes.
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Square / Circular / Rectangular Inflatable Jack
Inflatable jack, or lifting bag, is a pneumatic system made of elastomers or plastomers.
Filled with air, water or oil, these products are typically mounted in industrial automation systems to push, press, guide, clamp, lock, dampen, lift and handle.
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Standard Inflatable Pipe Plug - OPL
The standard inflatable pipe plug (OPL) is designed to temporarily or permanently plug pipes, sewers or gutters. Flexible and light, it is effective for a fast, tight and reliable sealing of the pipe.
Many sizes are available to cover pipes from 30 to 2000 mm in diameter. Thanks to these various diameters, this plugging balloon can be used in many fields: sewage networks, rainwater and wastewater with the NR range, as well as hydrocarbons and/or chemicals with the NBR range.
Moreover, the standard inflatable pipe plug is available in standard or by-pass versions. Thanks to this adaptability, it is possible to safely carry out an application such as:
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Towable Tank
The towable tank is mainly designed to refuel forward units.
Thanks to this innovative solution, refueling can be done on board of aircrafts, helicopters and vehicles (see an example: FARP, forward advance refueling point). Indeed, depending on its storage capacity, this tank can be transported, slung or even rolled. This drop tank can be attached to a truck, a plane or a helicopter.
Made of highly resistant PVC coated fabrics and assembled by vulcanization, this towable tank is very robust. Therefore, it can be dropped full, without risk of damage. Moreover, it is resistant to extreme weather conditions.
In addition, this drop height reaches:
- 12 meters for the 200 liters,
- And 5 meters for the 1000 and 1900 liters.
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Water Retention Tank - Volutex
The water retention tank is an open tank with a modular metal frame made of galvanized steel.
This solution can store for a temporary or permanent period all types of solid or liquid elements.
With a volume capacity ranging from 5 m3 to 120 m3 – or even more thanks to the possibility of custom-made tanks – you can store a large quantity of elements.
This open top water storage tank can be used in different ways, such as:
- A water reserve,
- A fishpond,
- An effluent tank,
- A fertilizer silo,
- A safety sandbox,
- Or even as a storage tank for decantation sludge.
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Water Tank for Construction Sites
Pronal’s flexible water tank can be used, temporarily or permanently, as a water tank for construction sites. Simple and quick to install, it is also very light and therefore easily transportable. Made from highly resistant PVC coated fabric (1300 gr/m2) and assembled by high frequency welding, the water will be well preserved. And, therefore, will not risk evaporation. This fabric is resistant to any temperature from -30°C to +70°C. The storage capacity of this range of tanks extends from 5 to 500m3.