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4″ Standard PR Pneumatic Test Ball Plug

Model #: ML83588
  • Used for testing pipelines or to temporarily stop their flow
  • Sizes range from 1-1/2″ to 4″
  • Works in place of other “standard” pneumatic plugs
  • Pressure relief automatically resets for each inflation
  • Pressure relief has no moving parts to fail or malfunction
  • One-piece rubber portion is molded with no seams or bonded parts
  • Multiple sealing ribs are located in the center portion of the plug for positive sealing
  • Pressure relief valve releases excess pressure into the atmosphere
  • Ring tag is attached to nylon core for extra rigidity


Spec Sheet
Installation Instructions/Parts/Warranty

Additional information

Product Category

Test Plugs

Product Type

Standard Pneumatic Test Plug