TUBE NEWS TN June 2018 | Page 26

Versatile Inflatable Stoppers for Pipe Plugging and Stopping

It is often necessary to quickly and easily stop the flow of gas or liquid in pipes , which is where low cost Cylindrical and Spherical Inflatable Stoppers are extremely attractive .
Designed and manufactured by the Pipestoppers ® Division of Huntingdon Fusion Techniques HFT ® Inflatable Stoppers can also help prevent the ingress of debris as well as other unwanted materials and animals .
Ron Sewell , Chairman for HFT ® said : “ Common applications for the Cylindrical and Spherical Range of Inflatable Stoppers include debris stopping , leak testing , plumbing operations and weld purging .”
“ Cylindrical Inflatable Stoppers will not ‘ turn over ’ inside a pipe when under pressure , because they are longer than their diameter . Spherical Stoppers are used where the position of the stoppers is not important , so can be placed at any angle to make a seal .” the end of the pipe , tank or vessel . No high-pressure equipment is needed for inflation .
The standard range of Inflatable Stoppers is available for immediate delivery in Cylindrical or Spherical formats with sizes ranging from 1 to 96 ” ( 25 to 2,440 mm ).
Heat resistant covers are available to protect them against temperatures up to 300 º C ( 572 º F ).
HFT ® also has a range of Rubber Inflatable Stoppers that are suitable higher pressures and these are resistant to all hydrocarbon fluids and gases .

. www . huntingdonfusion . com

All Inflatable Stoppers are manufactured with a strong internal latex balloons covered in a waterproof polyurethane coated nylon bag for low friction and to prevent the production of static electricity or accidental sparking . For petrochemical resistant applications these will have the bladders inside a petrochemical resistant housing .
Inflatable Stoppers are particularly useful when one or more can be inserted into a small opening close to a work location , rather than at
26 TUBE NEWS June 2018