8 Pipe Size Expansion Plugs

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Deflated Diameter

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Maximum Air Back Pressure

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Overall Height

Maximum Water Back Pressure

Less than 50 ft. of head

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With Bypass

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DFARS Specialty Metals

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8 Products

Wing-Nut Expansion Plugs

Style B

Twist the wing nut on these plugs to expand the seal and close off pipe openings.

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.

Plastic Plate—Plugs with a plastic plate weigh less than plugs with a metal plate.

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
Style B







				Yellow Plastic Plate

				8	7.70" to 8.03"	17	40	3 3/4"	-20 to 125	Natural Rubber	2645K48	000000

Long-Reach Wing-Nut Expansion Plugs

Plastic Plate

Insert these plugs deep within your pipe to temporarily block off a line. Twist their wing nut to expand the seal.

Plastic Plate—Plugs with a plastic plate are lighter in weight than plugs with a stainless steel plate.

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 Plate

			8	7.70" to 8.03"	17	40	3 3/4"	0 to 125	Natural Rubber	2645K46	000000

Quick-Locking Expansion Plugs

Save time sealing off pipe or valve box openings. These plugs install with one quarter turn of the handle, unlike wing-nut expansion plugs that require multiple turns. They temporarily close off your line with plastic feet that expand mechanically. The feet create a longer-lasting seal than plugs that expand with internal pressure, which can loosen over time. Since these plugs have no pressure ratings, they’re best for low-pressure applications. They’re often used in valve boxes to keep out dirt and debris.

Black Handle—Plugs with a black handle often signify a closed-off wastewater line.

Blue Handle—Plugs with a blue handle often signify a closed-off water line.

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					Blue Plastic Handle		Black Plastic Handle
Size	ID	Air	Water	Overall Ht.	Temp. Range, ° F	Seal Material		Each		Each







			Plastic Plate

			8	8.00" to 8.50"	Not Rated	Not Rated	4"	-40 to 220	TPE	6594N31	000000	6594N32	000000

Expansion Plugs with Bypass

Style C

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 C—For Style C, twist the wing nut to expand the seal. They have an NPT threaded bypass for making leak-tight connections.

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	Water, ft. of head	Overall Ht.	Temp. Range, ° F	Seal	Bypass Cap	Pipe Size	Thread Type	Gender		Each
Style C







				Iron Stem

				8	7.50" to 8.00"	Not Rated	4	14 3/4"	30 to 150	Natural Rubber	Metal	1/2	NPT	Male	2644K26	000000

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



	8	7.981"	20	40	19"	32 to 120	Natural Rubber	ABS Pipe, Cast Iron Pipe, PVC Pipe	6568N202	0000000

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

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
8	7.00" to 8.25"	6 3/4"	10 1/4"	17	40	25	-20 to 125	Natural Rubber	Ribbed	3058K7	0000000

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

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"	13	30	35	3	NPT	Female	-20 to 125	Natural Rubber	2580K12	0000000