McMaster-Carr logo
    Filter by
    For Pipe ID
    Deflated Diameter
    Maximum Air Back Pressure
    Deflated Height
    Body Texture
    DFARS Specialty Metals
    Export Control Classification Number (ECCN)
    Industrial Info Snippet
    Eyebolt Finish
    Maximum Pressure
    Maximum Temperature
    Maximum Water Back Pressure
    Minimum Temperature
    Required Inflation Pressure
    U.S.–Mexico–Canada Agreement (USMCA) Qualifying
    With Bypass
    Seal Material
    Expansion Plug Type
    Performance
    Sealing Location
    Forward
    Enter e-mail addresses in the fields below
    Message
    Cancel
    Print
    How can we improve?
    Comments
    E-mail address (if you would like a response)
    1 Product

    Air-Inflatable Plugs

    Conform to wide and out-of-round pipes with these inflatable plugs. Also known as pneumatic plugs, they're designed for temporary seals since they can lose pressure over time. They’re better for lower-pressure applications than water-inflatable plugs. Inflate them with a hand pump; an air compressor may overinflate the plug and cause damage.
    Plugs with a chain or eyebolt can be tethered through either so they don't get lost or stuck in your pipes during installation. For easy removal once testing is complete, pull on your tether.
    With Zinc-Plated Steel Eyebolt
    Image of Product. Smooth Body. Front orientation. Expansion Plugs. Air-Inflatable Plugs, With Zinc-Plated Steel Eyebolt, Smooth Body.

    Smooth

    Body

    Pressure-Relief Valve—Plugs with a pressure-relief valve release excess pressure to reduce the risk of overinflating and rupturing.
    Maximum Air Back Pressure—Maximum air back pressure is the amount of pressure a plug can withstand without moving.
    Maximum Water Back Pressure—Maximum water back pressure refers to the pressure resulting from the height of the water above the plug.
    For
    Pipe
    Deflated
    Max. Back
    Pressure
    Size
    ID
    Dia.
    Ht.
    Air,
    psi
    Water, ft.
    of head
    Req. Inflation
    Pressure, psi
    Temp. Range,
    ° F
    Seal Material
    Body
    Texture
    Features
    Each
    24 to 4820.50" to 50.00"19"84 1/2"1023250 to 125Natural Rubber
    		SmoothPressure-Relief Valve3058K35000000000
    Air-Inflatable Plug with Eyebolt, for 24 to 48 Pipe Size
    EachIn stock
    back to top