Inflatable Pipe Plug - Diaphragm Closure
Pronal diaphragms closure are flexible inflatable jacks. These jacks are installed in the legs of offshore platforms and assist the buoyancy of the fixed platform, while also maintaining its center of gravity when it is installed at sea.
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High pressure inflatable pipe plugs - OHP/OPV
High pressure inflatable pipe plugs “OHP & OPV” can plug all types of pipelines (Concrete, steel, HDPE, stainless steel…). They have been designed to withstand strong back pressures of up to 35 bars and even more on request.
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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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Emergency Pipe Plug Diameter Smaller Than 1000mm - OPAP
Sensitive to environmental protection, Pronal has developed an emergency pipe plug called OPAP. It is used for diameters below 1000 mm. For larger diameters, look at the OFR range of emergency pipe plugs.
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Emergency Pipe Plug Diameter Greater Than 1000mm - OFR
The OFR is an inflatable emergency pipe plug with a diameter greater than 1000 mm. It has been specially designed to plug pipes with large diameters. The diameter of the pipe defines the inflation pressure. It is dedicated to the reliable and permanent sealing of pipes.
In the event of a disaster, the emergency pipe plug inflates and acts as a valve that retains the polluting products. Once confined, these liquids are pumped or diverted to a retention basin. The sealing balloon thus stops the propagation of chemical products or fire water, eliminating any risk of pollution.
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PIPE TEST PLUG- OTR
Pronal’s pipe test plug OTR is designed to test the tightness of inspection wells that are found in waste-water systems. Flexible and light, you can easily integrate it in the sewerage network. Moreover, its execution is very fast.
Whatever the diameter of the pipe, the height of the sealing balloons is 200 mm. This allows a simple and fast use in narrow spaces.
Thanks to a double-walled fabric and a hot vulcanization in the autoclave, the pipe test plug allows a perfect seal. It also offers a high resistance to wear and tear and therefore a long service life.
In addition, the pipe plug is equipped with through walls for pressurization, intended for manhole tightness tests.
In the range of inflatable pipe plugs dedicated to sanitation, there is also the standard inflatable pipe plug OPL.
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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.