Inflatable Pipe Plugs Heat Shield Sleeve for use with FIRE-RETARDANT inflatable pipe plugs Inflatable Plugs for Air Ducts (Rectangular or Square) Inflatable Bladders Prototypes Rubber Bulbs/Hand Pumps and Valves Motion Picture Industry Bladders, Hand Pumps and Other Products Ostomy Products Contact Us Home

Manufacturers of Quality Industrial and Medical Rubber Products

  • Available in Natural rubber only.
  • Every duct plug polyester cloth cover has a fabric "pulling-loop" located on either side of the inflation tube for ease of use.
  • Every duct plug has a special low-pressure air pressure gauge attached to the end of the inflation tube.
  • Please indicate length, height and depth as per illustration shown above. Specify in inches. All finished duct plugs will have radii as required for manufacturing purposes.
  • Inflation tube inside diameter is 3/8" (.375"). Please specify exact location on duct plug.
  • Most any inflation tube length can be ordered.


All rectangular or square inflatable duct plugs are custom-fabricated.
We will be pleased to discuss price and delivery at time of inquiry.

When It Comes to Inflatable Pipe Plugs and Duct Plugs,
Perma-Type's Answer Is:

“Yes, We Can!”

Manufacturers of inflatable pipe plugs, bungs, expansion plugs, purge plugs, duct plugs, piping isolation products for applications including: global oil and gas, power generation, nuclear power, hydroelectric, steam and gas turbines, chemical plants, refineries, petrochemical & pipeline, pipe repair & maintenance, FME (Foreign Material Exclusion), Foreign Object Damage, Foreign Object Debris (FOD products), industrial safety, environmental, mining, welding pulp and paper, as well as the marine and offshore industries.

HomeInflatable BladdersPrototypesOstomy ProductsRubber Bulbs/Hand Pumps & Valves
Inflatable Pipe PlugsInflatable Plugs for Air Ducts (Rectangular or Square)
Motion Picture Industry Bladders, Hand Pumps and Other ProductsContact UsSite Index