Inflatable Bladders – Light Duty

Inflatable Bladders – Compact Diameter.

  • Industrial Ballistic Nylon Outer Ply
  • Smallest deflated size to install through tiny openings
  • Higher pressure and more robust than typical “Gas Plugs”, Type C Canvas covered bags or Rubber bungs




Most sizes afford easy placement by one man. Flexibility allows Multi-Size plugs to navigate through small hot tap or branch pipe into large pipeline; then inflate with air or water.

Typically used for plugging or testing of pipelines especially when there is small-restricted access. The Light duty Multi-size plug is the most flexible plug on the market; it has the greatest multi-size range and will conform to almost any pipe configuration. The small-deflated diameter and flexibility allows insertion and removal through a manhole for plugging otherwise inaccessible pipelines.  No shelf rot like rubber plugs.

Inflatable Bladders and Inflatable Bungs Features:

Inflatable Bladders made of Natural rubber and covered with Ballistic Nylon.

  • High Strength Flexible Materials: Inflatable Bungs are generally made from Ballistic Nylon  – many other materials available.
  • Multi-Size plugs or Inflatable stoppers may be used in any pipeline larger than the deflated diameter. Allow for some seepage in smaller size pipelines
  • Most sizes are available for prompt shipment.
  • Light Weight: Allows one person insertion for most sizes and applications.
  • Diver Friendly: Inflatable stoppers have small deflated size allows removal of air for easier insertion under water.
  • Higher Head Pressure: All inflation pressure is applied to the inside wall of the pipe through the  Inflatable plug. Molded rubber plugs require much of the inflation pressure just to expand the plug.
  • Flexibility: Deflated plug easily navigates bends and small openings. A 72” Multi-Flex™ plug may be inserted through a 7” opening!
  • Custom Configurations: Custom Flexible and Rigid Plugs have been manufactured for many high temperature and severe chemical applications.