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Specialised Fabrication Equipment: Crafting Precision, Building Excellence

Inflatable Pipe Stoppers

Inflatable Pipe Stoppers are designed for blocking and testing pipelines where a temporary seal is required. 

Manufactured from a natural rubber bladder covered in a waterproof polyurethane coating, these stoppers provide a reliable and flexible sealing solution across a wide range of pipe diameters and applications. 

Available in multiple shapes and sizes, inflatable stoppers are suitable for situations where access is restricted or where traditional mechanical stoppers cannot be used effectively.

Features and Advantages

  • Suitable for blocking and testing pipelines  
  • Flexible design allows use in restricted access areas  
  • Waterproof polyurethane coating prevents friction and static build-up  
  • Available in cylindrical, spherical and square configurations  
  • High adaptability for different pipe environments  
  • Durable construction for repeated use  
  • Easy inflation using standard airline or pump

Important: 
Maximum back pressure must not exceed 20% of the inflation pressure

Inflatable Pipe Stoppers

Types Available

Cylindrical Stoppers 

  • Designed for general pipe blocking applications  
  • Suitable where access is not restricted  

Spherical Stoppers 

  • Ideal for confined spaces and restricted access  
  • Can be inserted at various angles  

Square / Rectangular Stoppers 

  • Suitable for ducting and vent applications  
  • Used where non-circular openings are present 

How It Works

The stopper is inserted into the pipe in a deflated state. 

Once positioned, it is inflated using an airline or pump. As the internal bladder expands, it presses against the internal wall of the pipe, creating a secure seal. 

When deflated, the stopper can be easily removed, making it ideal for repeated use in testing and maintenance operations.

Specifications

  • Size Range: 2″ – 72″ (50 – 1,800 mm)  
  • Construction: Natural rubber bladder with polyurethane coating  
  • Inflation Method: Schrader valve (standard airline or pump)  
  • Application: Pipe blocking, testing and isolation  
  • Pressure Guidance: Back pressure limited to 20% of inflation pressure

Applications

  • Pipeline testing and commissioning  
  • Maintenance and repair work  
  • Pipe isolation in confined environments  
  • Ducting and ventilation systems  
  • Weld purging preparation (restricted access scenarios)

Technical Data

For full sizing charts, pressure ratings and part numbers, please refer to the official product datasheet or contact our team.