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Inflatable Products

Pronal is a global leader in flexible, inflatable engineered products. Their specialty products include: Air Lifting Bags, Pipe Plugs, Bottle Grippers, Trench Shields, Tanks, and Holders.
While we showcase many parts on our website, thousands more are available through our trusted partners. If you're searching for a hard-to-find item, seek an  alternative part, or require assistance with product selection, don’t hesitate to contact us — we’re here to help and will do our best to assist you.

302 products

OPLT 150/250

Pronal

OPLT 150/250

OPL/OPLT inflatable plugs are used to temporarily and effectively plug your pipe networks and systems.

Part No. Min Dia. (mm) Max Dia. (mm) Deflated Dia. (mm) Length (mm) Working Pressure Weight (Kg) Eye Bolt Size
OPLT 150/250 150 250 145 255 2.5 3 M8

They come in a variety of diameters and can be used in a wide range of applications, including sewage, rainwater and wastewater networks with the NR range, and hydrocarbons and chemicals with the NBR* range.

OPLT 100/200

Pronal

OPLT 100/200

OPL/OPLT inflatable plugs are used to temporarily and effectively plug your pipe networks and systems.

Part No. Min Dia. (mm) Max Dia. (mm) Deflated Dia. (mm) Length (mm) Working Pressure Weight (Kg) Eye Bolt Size
OPLT 100/200 100 200 86 350 2.5 2 NA

They come in a variety of diameters and can be used in a wide range of applications, including sewage, rainwater and wastewater networks with the NR range, and hydrocarbons and chemicals with the NBR* range.

OPL 800/2000

Pronal

OPL 800/2000

OPL/OPLT inflatable plugs are used to temporarily and effectively plug your pipe networks and systems.

Part No. Min Dia. (mm) Max Dia. (mm) Deflated Dia. (mm) Length (mm) Working Pressure Weight (Kg) Eye Bolt Size
OPL 800/2000 800 2000 760 2750 1.5 125 4xM16

They come in a variety of diameters and can be used in a wide range of applications, including sewage, rainwater and wastewater networks with the NR range, and hydrocarbons and chemicals with the NBR* range.

OPL 800/1600

Pronal

OPL 800/1600

OPL/OPLT inflatable plugs are used to temporarily and effectively plug your pipe networks and systems.

Part No. Min Dia. (mm) Max Dia. (mm) Deflated Dia. (mm) Length (mm) Working Pressure Weight (Kg) Eye Bolt Size
OPL 800/1600 800 1600 770 2000 1.5 90 3xM16

They come in a variety of diameters and can be used in a wide range of applications, including sewage, rainwater and wastewater networks with the NR range, and hydrocarbons and chemicals with the NBR* range.

OPL 600/1500

Pronal

OPL 600/1500

OPL/OPLT inflatable plugs are used to temporarily and effectively plug your pipe networks and systems.

Part No. Min Dia. (mm) Max Dia. (mm) Deflated Dia. (mm) Length (mm) Working Pressure Weight (Kg) Eye Bolt Size
OPL 600/1500 600 1500 570 2180 1.5 65 3xM16

They come in a variety of diameters and can be used in a wide range of applications, including sewage, rainwater and wastewater networks with the NR range, and hydrocarbons and chemicals with the NBR* range.

OPL 600/1200

Pronal

OPL 600/1200

OPL/OPLT inflatable plugs are used to temporarily and effectively plug your pipe networks and systems.

Part No. Min Dia. (mm) Max Dia. (mm) Deflated Dia. (mm) Length (mm) Working Pressure Weight (Kg) Eye Bolt Size
OPL 600/1200 600 1200 570 1400 1.5 49 2xM16

They come in a variety of diameters and can be used in a wide range of applications, including sewage, rainwater and wastewater networks with the NR range, and hydrocarbons and chemicals with the NBR* range.

OPL 500/1400

Pronal

OPL 500/1400

OPL/OPLT inflatable plugs are used to temporarily and effectively plug your pipe networks and systems.

Part No. Min Dia. (mm) Max Dia. (mm) Deflated Dia. (mm) Length (mm) Working Pressure Weight (Kg) Eye Bolt Size
OPL 500/1400 500 1400 490 2200 1.5 55 2xM12

They come in a variety of diameters and can be used in a wide range of applications, including sewage, rainwater and wastewater networks with the NR range, and hydrocarbons and chemicals with the NBR* range.

OPL 500/1000

Pronal

OPL 500/1000

OPL/OPLT inflatable plugs are used to temporarily and effectively plug your pipe networks and systems.

Part No. Min Dia. (mm) Max Dia. (mm) Deflated Dia. (mm) Length (mm) Working Pressure Weight (Kg) Eye Bolt Size
OPL 500/1000 500 1000 472 1140 3 32.5 2xM12

They come in a variety of diameters and can be used in a wide range of applications, including sewage, rainwater and wastewater networks with the NR range, and hydrocarbons and chemicals with the NBR* range.

OPL 400/800

Pronal

OPL 400/800

OPL/OPLT inflatable plugs are used to temporarily and effectively plug your pipe networks and systems.

Part No. Min Dia. (mm) Max Dia. (mm) Deflated Dia. (mm) Length (mm) Working Pressure Weight (Kg) Eye Bolt Size
OPL 400/800 400 800 370 1030 3 22 2xM12

They come in a variety of diameters and can be used in a wide range of applications, including sewage, rainwater and wastewater networks with the NR range, and hydrocarbons and chemicals with the NBR* range.

OPL 300/600

Pronal

OPL 300/600

OPL/OPLT inflatable plugs are used to temporarily and effectively plug your pipe networks and systems.

Part No. Min Dia. (mm) Max Dia. (mm) Deflated Dia. (mm) Length (mm) Working Pressure Weight (Kg) Eye Bolt Size
OPL 300/600 300 600 288 715 3 12 2xM10

They come in a variety of diameters and can be used in a wide range of applications, including sewage, rainwater and wastewater networks with the NR range, and hydrocarbons and chemicals with the NBR* range.

OPL 200/500

Pronal

OPL 200/500

OPL/OPLT inflatable plugs are used to temporarily and effectively plug your pipe networks and systems.

Part No. Min Dia. (mm) Max Dia. (mm) Deflated Dia. (mm) Length (mm) Working Pressure Weight (Kg) Eye Bolt Size
OPL 200/500 200 500 170 725 3 5.5 1xM8

They come in a variety of diameters and can be used in a wide range of applications, including sewage, rainwater and wastewater networks with the NR range, and hydrocarbons and chemicals with the NBR* range.

OPL 200/400

Pronal

OPL 200/400

OPL/OPLT inflatable plugs are used to temporarily and effectively plug your pipe networks and systems.

Part No. Min Dia. (mm) Max Dia. (mm) Deflated Dia. (mm) Length (mm) Working Pressure Weight (Kg) Eye Bolt Size
OPL 200/400 200 400 190 555 3 5.5 2xM10

They come in a variety of diameters and can be used in a wide range of applications, including sewage, rainwater and wastewater networks with the NR range, and hydrocarbons and chemicals with the NBR* range.

OPL 150/300

Pronal

OPL 150/300

OPL/OPLT inflatable plugs are used to temporarily and effectively plug your pipe networks and systems.

Part No. Min Dia. (mm) Max Dia. (mm) Deflated Dia. (mm) Length (mm) Working Pressure Weight (Kg) Eye Bolt Size
OPL 150/300 150 300 145 465 3 2.6 1xM8

They come in a variety of diameters and can be used in a wide range of applications, including sewage, rainwater and wastewater networks with the NR range, and hydrocarbons and chemicals with the NBR* range.

OPL 150/250

Pronal

OPL 150/250

OPL/OPLT inflatable plugs are used to temporarily and effectively plug your pipe networks and systems.

Part No. Min Dia. (mm) Max Dia. (mm) Deflated Dia. (mm) Length (mm) Working Pressure Weight (Kg) Eye Bolt Size
OPL 150/250 150 250 145 255 3 2 1xM8

They come in a variety of diameters and can be used in a wide range of applications, including sewage, rainwater and wastewater networks with the NR range, and hydrocarbons and chemicals with the NBR* range.

OPL 125/200

Pronal

OPL 125/200

OPL/OPLT inflatable plugs are used to temporarily and effectively plug your pipe networks and systems.

Part No. Min Dia. (mm) Max Dia. (mm) Deflated Dia. (mm) Length (mm) Working Pressure Weight (Kg) Eye Bolt Size
OPL 125/200 125 200 110 152 3 0.7 NA

They come in a variety of diameters and can be used in a wide range of applications, including sewage, rainwater and wastewater networks with the NR range, and hydrocarbons and chemicals with the NBR* range.

OPL 100/250

Pronal

OPL 100/250

OPL/OPLT inflatable plugs are used to temporarily and effectively plug your pipe networks and systems.

Part No. Min Dia. (mm) Max Dia. (mm) Deflated Dia. (mm) Length (mm) Working Pressure Weight (Kg) Eye Bolt Size
OPL 100/250 100 250 86 600 3 2.2 NA

They come in a variety of diameters and can be used in a wide range of applications, including sewage, rainwater and wastewater networks with the NR range, and hydrocarbons and chemicals with the NBR* range.

OPL 100/150

Pronal

OPL 100/150

OPL/OPLT inflatable plugs are used to temporarily and effectively plug your pipe networks and systems.

Part No. Min Dia. (mm) Max Dia. (mm) Deflated Dia. (mm) Length (mm) Working Pressure Weight (Kg) Eye Bolt Size
OPL 100/150 100 150 90 125 3 0.6 NA

They come in a variety of diameters and can be used in a wide range of applications, including sewage, rainwater and wastewater networks with the NR range, and hydrocarbons and chemicals with the NBR* range.

OPL 100/200

Pronal

OPL 100/200

OPL/OPLT inflatable plugs are used to temporarily and effectively plug your pipe networks and systems.

Part No. Min Dia. (mm) Max Dia. (mm) Deflated Dia. (mm) Length (mm) Working Pressure Weight (Kg) Eye Bolt Size
OPL 100/200 100 200 86 350 3 1.3 NA

They come in a variety of diameters and can be used in a wide range of applications, including sewage, rainwater and wastewater networks with the NR range, and hydrocarbons and chemicals with the NBR* range.

OPLS 100/200

Pronal

OPLS 100/200

OPL/OPLT inflatable plugs are used to temporarily and effectively plug your pipe networks and systems.

Part No. Min Dia. (mm) Max Dia. (mm) Deflated Dia. (mm) Length (mm) Working Pressure Weight (Kg) Eye Bolt Size
OPLS 100/200 100 200 90 250 3 0.8 NA

They come in a variety of diameters and can be used in a wide range of applications, including sewage, rainwater and wastewater networks with the NR range, and hydrocarbons and chemicals with the NBR* range.

OPL 75/150

Pronal

OPL 75/150

OPL/OPLT inflatable plugs are used to temporarily and effectively plug your pipe networks and systems.

Part No. Min Dia. (mm) Max Dia. (mm) Deflated Dia. (mm) Length (mm) Working Pressure Weight (Kg) Eye Bolt Size
OPL 75/150 75 150 70 350 3 0.8 NA

They come in a variety of diameters and can be used in a wide range of applications, including sewage, rainwater and wastewater networks with the NR range, and hydrocarbons and chemicals with the NBR* range.

OPLS 75/150

Pronal

OPLS 75/150

OPL/OPLT inflatable plugs are used to temporarily and effectively plug your pipe networks and systems.

Part No. Min Dia. (mm) Max Dia. (mm) Deflated Dia. (mm) Length (mm) Working Pressure Weight (Kg) Eye Bolt Size
OPLS 75/150 75 150 70 195 3 0.5 NA

They come in a variety of diameters and can be used in a wide range of applications, including sewage, rainwater and wastewater networks with the NR range, and hydrocarbons and chemicals with the NBR* range.

OPL 65/125

Pronal

OPL 65/125

OPL/OPLT inflatable plugs are used to temporarily and effectively plug your pipe networks and systems.

Part No. Min Dia. (mm) Max Dia. (mm) Deflated Dia. (mm) Length (mm) Working Pressure Weight (Kg) Eye Bolt Size
OPL 65/125 65 125 63 250 3 0.4 NA

They come in a variety of diameters and can be used in a wide range of applications, including sewage, rainwater and wastewater networks with the NR range, and hydrocarbons and chemicals with the NBR* range.

OPL 50/100

Pronal

OPL 50/100

OPL/OPLT inflatable plugs are used to temporarily and effectively plug your pipe networks and systems.

Part No. Min Dia. (mm) Max Dia. (mm) Deflated Dia. (mm) Length (mm) Working Pressure Weight (Kg) Eye Bolt Size
OPL 50/100 50 100 45 110 3 0.3 NA

They come in a variety of diameters and can be used in a wide range of applications, including sewage, rainwater and wastewater networks with the NR range, and hydrocarbons and chemicals with the NBR* range.

OPL 45/80

Pronal

OPL 45/80

OPL/OPLT inflatable plugs are used to temporarily and effectively plug your pipe networks and systems.

Part No. Min Dia. (mm) Max Dia. (mm) Deflated Dia. (mm) Length (mm) Working Pressure Weight (Kg) Eye Bolt Size
OPL 45/80 45 80 43 150 3 0.3 NA

They come in a variety of diameters and can be used in a wide range of applications, including sewage, rainwater and wastewater networks with the NR range, and hydrocarbons and chemicals with the NBR* range.

OPL 30/60

Pronal

OPL 30/60

OPL/OPLT inflatable plugs are used to temporarily and effectively plug your pipe networks and systems.

Part No. Min Dia. (mm) Max Dia. (mm) Deflated Dia. (mm) Length (mm) Working Pressure Weight (Kg) Eye Bolt Size
OPL 30/60 30 60 29 150 3 0.2 NA

They come in a variety of diameters and can be used in a wide range of applications, including sewage, rainwater and wastewater networks with the NR range, and hydrocarbons and chemicals with the NBR* range.

Rubber Bag Transformer - STP

Pronal

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.

Bladder Surge Vessel - MAB

Pronal

Bladder Surge Vessel - MAB

The bladder surge vessel is a compensating membrane. We always install them inside the tanks and grids under pressure. They can compensate the variation of the volume and to restrict the effects of water hammers.

Manufactured from elastomers and plastomers, this bladder surge vessel forms an interface for the protection of liquids by gases. This product is assembled by high frequency welding or by hot vulcanization in autoclave.

They are designed to:

  • absorb water hammer: during a sudden closing or opening of a valve,
  • soften pulsations: due to the diaphragm of a pump which generates pressure oscillations
  • compensate for a pressure variation: when there is a loss of volume so the pressure can remain the same

Our compensation membranes prevent overpressures that could be harmful to the various elements of the installation.

These flexible membranes are completely watertight. We can customize them to fit the tank in which they will be installed.

Hydraulic Oil Separator - EXP

Pronal

Hydraulic Oil Separator - EXP

The EXP hydraulic oil separator allows the separation of hydraulic fluids contained in a tank. It looks like a synthetic rubber bladder that is perfectly deformable. It can be placed either inside or outside the tank, depending on the needs. Real auxiliary tanks, they can be made flat or shaped.

The product will compensate for volume variations. These variations can deteriorate the characteristics of the oil and the hydraulic system components. The compensators are permanently installed within the system, making it autonomous, and require no maintenance.

This hydraulic oil separator allows:

  • To avoid emulsion, air in the oil, condensation in the tanks, or pollution of the oil by dust
  • To eliminate turbulence and the risk of leaks, whatever the orientation of the tank.
  • The operation in water immersion

These hydraulic compensators are available as standard. However, they can also be custom-made according to the dimensions of your tanks and the volume to be compensated.

Suggested Applications: Oil volume compensation, Food-stuff volume compensation.

Bladder Rupture Relay - BRR

Pronal

Bladder Rupture Relay - BRR

The Bladder Rupture Relay (BRR) is associated with the STP rubber bag transformer. It is an intelligent system capable of detecting any abnormal liquid present in the preservative membrane. For example, it can detect oil in case of leakage or condensation due to a dryer problem.

  • Kit contents:
    • 1 optical sensor with a 5 m cable
    • 1 connection unit
    • 1 outside control relay with LEDs
  • Temperature resistance: -20°/+100°C

First, the optical sensor is placed in the compensator, through the flange. The installation can be done during the assembly or during a maintenance operation. The connection box is used to connect the sensor to the external control unit installed in the transformer’s electrical panel.

Equipped with two LEDS, the control unit allows a permanent visual monitoring. The red LED indicates the anomaly; the green LED indicates the normal situation. Thus, the BRR Bladder Rupture Relay avoids unnecessary maintenance costs and time.

Fuel Bladder (Tank) 29354

Pronal

Fuel Bladder (Tank) 29354

Volume: 300 m3 | Dimensions: 17m x 14.6m x 1.35m | Weight: 900 KG

The flexible fuel tank can be used to create main or secondary fuel depots. It allows to ensure the continuity of the petroleum chain at many levels such as

  • Storage of jet fuel for aircraft or land vehicles refueling,
  • The supply of diesel to power plants,
  • Fuel supply for mining vehicles,
  • The supply of fuel for generators.

Available accessories: Man Hole, Side Inlet / Outlet, Overpressure vent, UV Cover, Info. Marking, & Repair Kits.

Fuel Bladder (Tank) 29353

Pronal

Fuel Bladder (Tank) 29353

Volume: 200 m3 | Dimensions: 18.5m x 9.8m x 1.35m | Weight: 681 KG

The flexible fuel tank can be used to create main or secondary fuel depots. It allows to ensure the continuity of the petroleum chain at many levels such as

  • Storage of jet fuel for aircraft or land vehicles refueling,
  • The supply of diesel to power plants,
  • Fuel supply for mining vehicles,
  • The supply of fuel for generators.

Available accessories: Man Hole, Side Inlet / Outlet, Overpressure vent, UV Cover, Info. Marking, & Repair Kits.

Fuel Bladder (Tank) 29350

Pronal

Fuel Bladder (Tank) 29350

Volume: 100 m3 | Dimensions: 11.3m x 8.39m x 1.35m | Weight: 380 KG

The flexible fuel tank can be used to create main or secondary fuel depots. It allows to ensure the continuity of the petroleum chain at many levels such as

  • Storage of jet fuel for aircraft or land vehicles refueling,
  • The supply of diesel to power plants,
  • Fuel supply for mining vehicles,
  • The supply of fuel for generators.

Available accessories: Man Hole, Side Inlet / Outlet, Overpressure vent, UV Cover, Info. Marking, & Repair Kits.

Fuel Bladder (Tank) 29347

Pronal

Fuel Bladder (Tank) 29347

Volume: 50 m3 | Dimensions: 7.6m x 6.97m x 1.3m | Weight: 230 KG

The flexible fuel tank can be used to create main or secondary fuel depots. It allows to ensure the continuity of the petroleum chain at many levels such as

  • Storage of jet fuel for aircraft or land vehicles refueling,
  • The supply of diesel to power plants,
  • Fuel supply for mining vehicles,
  • The supply of fuel for generators.

Available accessories: Man Hole, Side Inlet / Outlet, Overpressure vent, UV Cover, Info. Marking, & Repair Kits.

Fuel Bladder (Tank) 29345

Pronal

Fuel Bladder (Tank) 29345

Volume: 40 m3 | Dimensions: 6.7m x 6.7m x 1.3m | Weight: 200 KG

The flexible fuel tank can be used to create main or secondary fuel depots. It allows to ensure the continuity of the petroleum chain at many levels such as

  • Storage of jet fuel for aircraft or land vehicles refueling,
  • The supply of diesel to power plants,
  • Fuel supply for mining vehicles,
  • The supply of fuel for generators.

Available accessories: Man Hole, Side Inlet / Outlet, Overpressure vent, UV Cover, Info. Marking, & Repair Kits.

Fuel Bladder (Tank) 26495

Pronal

Fuel Bladder (Tank) 26495

Volume: 25 m3 | Dimensions: 6.4m x 4.8m x 1.3m | Weight: 147 KG

The flexible fuel tank can be used to create main or secondary fuel depots. It allows to ensure the continuity of the petroleum chain at many levels such as

  • Storage of jet fuel for aircraft or land vehicles refueling,
  • The supply of diesel to power plants,
  • Fuel supply for mining vehicles,
  • The supply of fuel for generators.

Available accessories: Man Hole, Side Inlet / Outlet, Overpressure vent, UV Cover, Info. Marking, & Repair Kits.

Fuel Bladder (Tank) 26262

Pronal

Fuel Bladder (Tank) 26262

Volume: 10 m3 | Dimensions: 4m x 4m x 1.1m | Weight: 100 KG

The flexible fuel tank can be used to create main or secondary fuel depots. It allows to ensure the continuity of the petroleum chain at many levels such as

  • Storage of jet fuel for aircraft or land vehicles refueling,
  • The supply of diesel to power plants,
  • Fuel supply for mining vehicles,
  • The supply of fuel for generators.

Available accessories: Man Hole, Side Inlet / Outlet, Overpressure vent, UV Cover, Info. Marking, & Repair Kits.