Mechanical Expansion Wing Nut Plumber's Type Plug

Plumber's Type Plugs are Ideal for use Isolating Pipes up to 24" - Available for Sale or to Rent

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Do you need a quick and easy seal on your pipe, tube or round hole? USA Industries' Wing Nut Plumber's Type Isolation Plugs are just what you're looking for. These plugs use neoprene seals with die cast bodies, and are available in line sizes 2" through 24". This plug is rated to hold back pressure up to 13 PSIG and it is available with or without upstream venting capabilities.

Designed and developed to test for leaks and for sealing off sections of pipelines generally made of cast iron, steel, vitrified clay, concrete, etc., these wing nut plugs come with a vent tube for venting excess back-pressure. One person can easily install these plugs. Turning the wing nut expands the rubber ring tightly against the inside of the pipe. Hand-tightening is usually adequate in smaller sizes, but a wrench can be used on larger sizes to provide a better seal.


  • A low-pressure, ported test plug
  • Ideal to seal pipes, tubes & round holes
  • Available in line sizes up to 24"
  • In stock sizes ship within 24 hours

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Pressure testing can be an extremely hazardous operation and safety precautions should be strictly adhered to. All connections, valves, flanges and other fittings should be checked for suitability to test pressure. Verify the line ID and plug range match, and most importantly - NEVER stand or pass in front of any test plug or other enclosure while test is in progress. If plug discharges during a test, serious injury or death may occur.

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