McMaster-Carr logo
    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)
    3 Products

    Adhesive-Back Caps for Pipe Flanges

    Image of Product. Front orientation. Protective Caps. Adhesive-Back Caps for Pipe Flanges.
    Stick these caps onto the raised face of flanges to prevent nicks and scratches during shipping and storage. They stay in place until you peel them off and leave no residue behind.
    Polyethylene—These tough caps are hard and wear resistant to hold up against scrapes and gouges.
    For Pipe
    Size
    For OD
    Flexibility
    Max. Temp.,
    ° F
    Color
    Adhesive
    Type
    Pkg.
    Qty.
    Pkg.
    Polyethylene
     
    For ANSI Flanges
    1618 1/2"Rigid160BlackRubber10000000000000
     

    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. Ribbed Body. Front orientation. Expansion Plugs. Air-Inflatable Plugs, With Zinc-Plated Steel Eyebolt, Ribbed Body.

    Ribbed

    Body

    Ribbed Body—Plugs with a ribbed texture have better traction against pipe walls than plugs with a smooth texture. When sealing oily or polished walls, they’ll resist slipping.
    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
    Each
    1614.00" to 16.25"13 3/4"19 3/4"133025-20 to 125Natural Rubber
    		Ribbed00000000000000

    Air-Inflatable Plugs with Bypass

    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. Use the bypass tube on these plugs to add air, water, and other fluid to your pipeline or to relieve pressure while testing.
    Inflate with a hand pump (sold separately); an air compressor may overinflate the plug and cause damage. Tether the plugs using either the eyebolt or chain/ring so they don't get lost or stuck in your pipes during installation. Pull on the tether for quick and easy removal once testing is complete.
    With Zinc-Plated Steel Eyebolt
    Image of Product. Front orientation. Expansion Plugs. Air-Inflatable Plugs with Bypass, With Zinc-Plated Steel Eyebolt.
    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
    Bypass
    Size
    ID
    Dia.
    Ht.
    Air,
    psi
    Water, ft.
    of head
    Req. Inflation
    Pressure, psi
    Pipe
    Size
    Thread
    Type
    Gender
    Temp. Range,
    ° F
    Seal Material
    Each
    1614.00" to 16.00"13 3/4"19 3/4"1330353
    		NPT
    		Female-20 to 125Natural Rubber
    		00000000000000
    back to top