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    28 Products

    Wing-Nut Expansion Plugs

    Image of Product. Front orientation. Expansion Plugs. Wing-Nut Expansion Plugs, Style A.

    Style A

    Image of Product. Front orientation. Expansion Plugs. Wing-Nut Expansion Plugs, Style B.

    Style B

    Image of Product. Front orientation. Expansion Plugs. Wing-Nut Expansion Plugs, Style D.

    Style D

    Twist the wing nut on these plugs to expand the seal and close off pipe openings.
    Style A—Style A aren’t recommended for pressure testing, so they’re often used as a dust cover.
    Style B—Style B have a wide top flange so they don’t fall into your pipe. They’re often used for plumbing pressure tests.
    Style D—Style D lock with a padlock to limit access. They’re often used on monitoring wells.
    Plastic Plate—Plugs with a plastic plate weigh less than plugs with a metal plate.
    Zinc-Plated Steel Plate—Plugs with a zinc-plated steel plate have fair corrosion resistance.
    Stainless Steel Plate—Plugs with a stainless steel plate have excellent corrosion resistance.
    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
    Max. Back
    Pressure
    Size
    ID
    Air,
    psi
    Water, ft.
    of head
    Overall
    Ht.
    Temp. Range,
    ° F
    Seal Material
    Lock Type
    For Max. Shackle
    Dia.
    Each
    Style A
     
    Zinc-Plated Steel Plate
    3
    		2.86" to 3.25"252 11/16"-20 to 125Natural Rubber
    		——2613K2500000
     
    Stainless Steel Plate
    3
    		2.86" to 3.25"252 11/16"0 to 175Buna-N
    		——2613K5300000
     
    Style B
     
    Yellow Plastic Plate
    3
    		2.80" to 3.10"17402 1/2"-20 to 125Natural Rubber
    		——2645K4300000
     
    Style D
     
    Green Plastic Plate
    3
    		2.80" to 3.10"6152 5/8"-20 to 125Buna-N
    		Padlockable5/16"24395K7100000
     

    Hex-Nut Expansion Plugs

    Image of Product. Front orientation. Expansion Plugs. Hex-Nut Expansion Plugs, Style B.
    Image of Product. Front orientation. Expansion Plugs. Hex-Nut Expansion Plugs, Style C.
    Image of Product. Front orientation. Expansion Plugs. Hex-Nut Expansion Plugs, Style D.

    Style B

    Style C

    Style

    D

    Tighten the nut on these plugs to expand the seal and close off pipe openings.
    Style D—Style D have an eyebolt that allows you to tether or hang the plug for convenient storage.
    Zinc-Plated Steel Plate—Plugs with a zinc-plated steel plate have fair corrosion resistance.
    Stainless Steel Plate—Plugs with a stainless steel plate have excellent corrosion resistance.
    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
    Max. Back
    Pressure
    Material
    Size
    ID
    Air,
    psi
    Water, ft.
    of head
    Overall
    Ht.
    Temp. Range,
    ° F
    Seal
    Eyebolt
    Each
    Style B
     
    Stainless Steel Plate
    3
    		2.92" to 3.20"5123 1/16"-40 to 250Neoprene
    		—2599K53000000
     
    Style C
     
    Zinc-Plated Steel Plate
    3
    		2.73" to 3.07"501153 1/2"-20 to 225Neoprene
    		—2554K76000000
     
    Style D
     
    Zinc-Plated Steel Plate
    3
    		2.74" to 3.25"15347 1/2"-20 to 225Neoprene
    		Zinc-Plated Steel2565K28000000
     

    Expansion Plugs with Bypass

    Image of Product. Front orientation. Expansion Plugs. Expansion Plugs with Bypass, Style A.
    Image of Product. Front orientation. Expansion Plugs. Expansion Plugs with Bypass, Style C.
    Image of Product. Front orientation. Expansion Plugs. Expansion Plugs with Bypass, Style D.

    Style A

    Style C

    Style D

    Image of Product. Bottom orientation. Expansion Plugs. Expansion Plugs with Bypass, Style K.
    Image of Product. Bottom orientation. Expansion Plugs. Expansion Plugs with Bypass, Style L.

    Style K

    Style L

    Use the bypass tube on these plugs to add air, water, and other fluid to your pipeline or to relieve pressure while testing. The seal expands to temporarily close off pipe openings.
    Style A—For Style A, twist the wing nut to expand the seal. They have an NPS threaded bypass for routing moderately pressurized fluids.
    Style C—For Style C, twist the wing nut to expand the seal. They have an NPT threaded bypass for making leak-tight connections.
    Style D—For Style D, twist the wing nut to expand the seal. They have an NPT threaded bypass for making leak-tight connections.
    Style K—For Style K, twist the wing nut to expand the seal. They have a Schrader valve bypass. An internal spring holds the valve shut until you depress the pin, giving you control over air flow.
    Style L—For Style L, twist the wing nut to expand the seal. They have a GHT bypass that connects to standard garden hoses. Ideal for pipe cleanout, they allow for easy, controlled drainage.
    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
    Max. Back
    Pressure
    Material
    Bypass
    Size
    ID
    Air, psi
    Water, ft.
    of head
    Overall
    Ht.
    Temp. Range,
    ° F
    Seal
    Bypass
    Cap
    Hose
    Size
    Pipe
    Size
    Thread
    Type
    Thread
    Size
    Gender
    Each
    Style A
     
    Aluminum Stem
    3
    		2.77" to 3.25"1252888 1/4"-20 to 170Natural Rubber
    		Metal—3/8
    		NPS
    		—Male2602K24000000
     
    Style C
     
    Iron Stem
    3
    		2.75" to 3.00"Not Rated3410 1/2"30 to 150Natural Rubber
    		Metal—1/2
    		NPT
    		—Male2644K2200000
     
    Style D
     
    Plastic Stem
    3
    		2.87" to 3.31"15344 1/2"-40 to 180Natural Rubber
    		Plastic—1/2
    		NPT
    		—Male2566K3800000
     
    Style K
     
    Plastic Stem
    3
    		2.84" to 3.09"20463 3/4"—PVC
    		Plastic——Schrader
    		0.305"-32
    		—2566K6300000
     
    Style L
     
    Plastic Stem
    3
    		2.84" to 3.09"20463 3/4"—PVC
    		Plastic3/4—GHT
    		—Male2566K530000
     

    T-Handle Expansion Plugs

    Image of Product. Front orientation. Expansion Plugs. T-Handle Expansion Plugs.
    Twist the easy-grip T-handle on these plugs to expand the seal and close off pipe openings.
    Zinc-Plated Steel Plate—Plugs with a zinc-plated steel plate have fair corrosion resistance.
    Stainless Steel Plate—Plugs with a stainless steel plate have excellent corrosion resistance.
    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
    Max. Back
    Pressure
    Brass Handle
    Stainless
    Steel Handle
    Size
    ID
    Air,
    psi
    Water, ft.
    of head
    Overall
    Ht.
    Temp. Range,
    ° F
    Seal
    Material
    Each
    Each
     
    Zinc-Plated Steel Plate
    3
    		2.92" to 3.10"5123 3/4"-40 to 250Neoprene
    		2527K24000000———0
     
    Stainless Steel Plate
    3
    		2.92" to 3.10"5123 3/4"-40 to 250Neoprene
    		———02908K28000000
     

    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 Chain/Ring
    Image of Product. Front orientation. Expansion Plugs. Air-Inflatable Plugs with Bypass, With Zinc-Plated Steel Chain/Ring.
    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.
    Chain Lg.,
    ft.
    Air,
    psi
    Water, ft.
    of head
    Req. Inflation
    Pressure, psi
    Pipe
    Size
    Thread
    Type
    Gender
    Temp. Range,
    ° F
    Seal Material
    Each
    3
    		2.62" to 3.25"2 1/2"8"12250401/2
    		NPT
    		Female-20 to 125Natural Rubber
    		2580K270000000
    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
    8
    		7.00" to 8.25"6 3/4"10"1330353
    		NPT
    		Female-20 to 125Natural Rubber
    		2580K120000000
    10
    		9.00" to 10.25"8 3/4"11 3/4"1330353
    		NPT
    		Female-20 to 125Natural Rubber
    		2580K13000000
    12
    		10.50" to 12.25"10 1/4"13 3/4"1330353
    		NPT
    		Female-20 to 125Natural Rubber
    		2580K14000000
    12 to 2411.25" to 24.00"11"37"1330453
    		NPT
    		Male-20 to 125Natural Rubber
    		2580K31300000000
    1614.00" to 16.00"13 3/4"19 3/4"1330353
    		NPT
    		Female-20 to 125Natural Rubber
    		2580K29000000

    Long-Reach Hex-Nut Expansion Plugs with Bypass

    Image of Product. Front orientation. Expansion Plugs. Long-Reach Hex-Nut Expansion Plugs with Bypass.
    Plug your pipe from the inside. Insert these expansion plugs deep into your pipe, and then tighten the nut on the stem. Use the bypass tube to add air, water, and fluid or relieve back pressure.
    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
    Max. Back
    Pressure
    Bypass
    Size
    ID
    Air,
    psi
    Water, ft.
    of head
    Overall
    Ht.
    Temp. Range,
    ° F
    Seal
    Material
    Pipe
    Size
    Thread
    Type
    Gender
    Each
     
    Zinc-Plated Steel Stem
    3
    		3.03" to 3.13"501154 3/8"-20 to 225Neoprene
    		1/4
    		NPT
    		Male2564K480000000
     

    Quick-Snap Expansion Plugs

    Image of Product. Front orientation. Expansion Plugs. Quick-Snap Expansion Plugs.
    Turn the cam handle to expand the seal, then snap the handle down to hold it in place and close off pipe openings.
    Zinc-Plated Steel Plate—Plugs with a zinc-plated steel plate have fair corrosion resistance.
    Stainless Steel Plate—Plugs with a stainless steel plate have excellent corrosion resistance.
    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
    Max. Back
    Pressure
    Brass Handle
    Stainless
    Steel Handle
    Size
    ID
    Air,
    psi
    Water, ft.
    of head
    Overall
    Ht.
    Temp. Range,
    ° F
    Seal
    Material
    Each
    Each
     
    Zinc-Plated Steel Plate
    3
    		2.94" to 3.10"5122 1/4"-40 to 250Neoprene
    		2598K36000000———0
     
    Stainless Steel Plate
    3
    		2.94" to 3.10"5122 1/4"-40 to 250Neoprene
    		———09191T61000000
     

    Square-Head Expansion Plugs

    Image of Product. Front orientation. Exploded view. Expansion Plugs. Square-Head Expansion Plugs.
    Turn the square head of the plug into the sealing ring to close off pipe openings.
    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
    Max. Back
    Pressure
    Size
    ID
    Air,
    psi
    Water, ft.
    of head
    Overall
    Ht.
    Temp. Range,
    ° F
    Seal
    Material
    Each
    Plastic Head
    3
    		3.07" to 3.16"21502"35 to 210PVC
    		25655K7300000
     

    Air-Inflatable Plugs

    Image of Product. Style C. Front orientation. Expansion Plugs. Air-Inflatable Plugs, With Zinc-Plated Steel Chain/Ring, Style C.

    Style C

    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 Chain/Ring
    Image of Product. Style C. Front orientation. Expansion Plugs. Air-Inflatable Plugs, With Zinc-Plated Steel Chain/Ring, Style C.

    Style C

    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
    Style
    Size
    ID
    Dia.
    Ht.
    Chain
    Lg.
    Air,
    psi
    Water, ft.
    of head
    Req. Inflation
    Pressure, psi
    Temp. Range,
    ° F
    Seal Material
    Body
    Texture
    Each
    C3
    		2.77" to 3.25"2 5/8"5 1/4"12"133035-20 to 125Natural Rubber
    		Ribbed3058K4000000

    Long-Reach Wing-Nut Expansion Plugs

    Image of Product. Front orientation. Expansion Plugs. Long-Reach Wing-Nut Expansion Plugs, Stainless Steel Plate with Brass Stem.

    Stainless

    Steel Plate

    with Brass

    Stem

    Insert these plugs deep within your pipe to temporarily block off a line. Twist their wing nut to expand the seal.
    Stainless Steel Plate—Plugs with a stainless steel plate have excellent corrosion resistance.
    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
    Max. Back
    Pressure
    Size
    ID
    Air,
    psi
    Water, ft.
    of head
    Overall
    Ht.
    Temp. Range,
    ° F
    Seal Material
    Each
     
    Stainless Steel Plate with Brass Stem
    3
    		2.95" to 3.15"174011"0 to 125Natural Rubber
    		2988A48000000
     

    Air-Inflatable Plugs for Tee Connections

    Image of ProductInUse. Bottom orientation. Contains Inset. Expansion Plugs. Air-Inflatable Plugs for Tee Connections.
    Often used for plumbing tests, these plugs thread into tees and inflate to block flow across the pipe. After your test is complete, deflate the bladder to drain the fluid from your line. Leave the plug installed while the draining the pipe—the threads create a leak-free seal, so no water will splash out. Also known as pneumatic plugs, they can lose pressure over time, so they’re designed for temporary seals. To inflate, use a hand pump (not included) since an air compressor might overinflate and burst them.
    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
    Material
    Size
    ID
    Dia.
    Ht.
    Air,
    psi
    Water, ft.
    of head
    Req. Inflation
    Pressure, psi
    Temp. Range,
    ° F
    Seal
    Thread
    Each
    NPT Male
    3
    		3.068"3 1/2"7 3/8"1330350 to 125Natural Rubber
    		ABS
    		6064N13000000
     

    Expansion Plugs for Cleanout Tees

    Image of ProductInUse. Side1 orientation. Contains Inset. Expansion Plugs. Expansion Plugs for Cleanout Tees.
    Seal cleanout tees when testing your drain, waste, and vent systems for pressure and leaks—no need to inflate these plugs with an air compressor or hand pump. To install, insert the plug end into your pipe so the curved foot is on the bottom threads of the cleanout tee, then push down the handle to lock it into the foot. The foot has a two-stage release latch: lift the handle one notch to release the plug and allow liquid to drain slowly, then lift the handle again until the foot fully disengages to take out the plug.
    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
    Max. Back
    Pressure
    Steel Handle
    Size
    ID
    Air,
    psi
    Water, ft.
    of head
    Overall
    Ht.
    Temp. Range,
    ° F
    Seal Material
    For Use With
    Each
    3
    		3.068"6515011 3/4"32 to 120Natural Rubber
    		ABS Pipe, Cast Iron Pipe, PVC Pipe6568N112000000
     
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