1/2 Pipe Size Expansion Plugs

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System of Measurement

For Pipe ID

Expansion Plug Type

Sealing Location

Maximum Air Back Pressure

Material

Plate Material

Thread Type

Maximum Water Back Pressure

Less than 50 ft. of head

50 ft. of head to 99 ft. of head

100 ft. of head to 199 ft. of head

200 ft. of head to 249 ft. of head

250 ft. of head or greater

Overall Height

Height

Handle Material

Bypass Connection Port

Bypass Gender

Maximum Pressure

1,000 psi to 1,999 psi

Maximum Temperature

With Bypass

U.S.–Mexico–Canada Agreement (USMCA) Qualifying

Minimum Temperature

RoHS

Export Control Classification Number (ECCN)

EAR99

REACH

Compliant

Not Compliant

DFARS Specialty Metals

Bypass Pipe Size

Gender

31 Products

Expansion Plugs with Bypass


Style A	Style B	Style C

Style D	Style E	Style H

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 B—For Style B, 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 E—For Style E, twist the wing nut to expand the seal. They have a barbed bypass for quick connections to tubing.

Style H—For Style H, twist the wing nut to expand the seal. They have a bypass with BSPP threads, also known as G threads, 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	For Tube ID	Connection		Each
Style A







				Aluminum Stem

				4	3.85" to 4.25"	35 psi	81	8 1/4"	-20 to 170	Natural Rubber	Metal	1/2	NPS	Male	—	—	2602K25	000000


				Style B







								Steel Stem

								6	5.80" to 6.50"	20 psi	46	12"	35 to 210	Natural Rubber	Metal	1/2	NPS	Male	—	—	2602K16	000000


								Style C







												Iron Stem

												1/2	0.47" to 0.50"	Not Rated	46	4 1/4"	30 to 150	Natural Rubber	Metal	1/16	NPT	Male	—	—	2644K15	00000


												2	1.75" to 2.00"	Not Rated	34	10 3/8"	30 to 150	Natural Rubber	Metal	1/2	NPT	Male	—	—	2644K21	00000
												3	2.75" to 3.00"	Not Rated	34	10 1/2"	30 to 150	Natural Rubber	Metal	1/2	NPT	Male	—	—	2644K22	00000
												4	3.63" to 4.00"	Not Rated	23	10 1/8"	30 to 150	Natural Rubber	Metal	1/2	NPT	Male	—	—	2644K23	00000
												5	4.50" to 5.00"	Not Rated	23	12 5/8"	30 to 150	Natural Rubber	Metal	1/2	NPT	Male	—	—	2644K24	00000
												6	5.50" to 6.00"	Not Rated	23	12 1/2"	30 to 150	Natural Rubber	Metal	1/2	NPT	Male	—	—	2644K25	00000
												8	7.50" to 8.00"	Not Rated	4	14 3/4"	30 to 150	Natural Rubber	Metal	1/2	NPT	Male	—	—	2644K26	00000
												10	9.50" to 10.00"	Not Rated	4	14 7/8"	30 to 150	Natural Rubber	Metal	1/2	NPT	Male	—	—	2644K31	000000


												Style D







																Plastic Stem

																1 1/2	1.42" to 1.93"	50 psi	115	4 1/2"	-40 to 180	Natural Rubber	Plastic	1/2	NPT	Male	—	—	2566K35	00000


																2	1.93" to 2.36"	40 psi	92	4 1/2"	-40 to 180	Natural Rubber	Plastic	1/2	NPT	Male	—	—	2566K36	00000
																2 1/2	2.40" to 2.76"	30 psi	69	4 1/2"	-40 to 180	Natural Rubber	Plastic	1/2	NPT	Male	—	—	2566K37	00000
																3	2.87" to 3.31"	15 psi	34	4 1/2"	-40 to 180	Natural Rubber	Plastic	1/2	NPT	Male	—	—	2566K38	00000
																4	3.54" to 4.25"	15 psi	34	4 1/2"	-40 to 180	Natural Rubber	Plastic	1/2	NPT	Male	—	—	2566K39	00000
5																4.72" to 5.37"	12 psi	27	4 1/2"	-40 to 180	Natural Rubber	Plastic	1/2	NPT	Male	—	—	2566K41	00000
6	5.50" to 6.29"															10 psi	23	4 1/2"	-40 to 180	Natural Rubber	Plastic	1/2	NPT	Male	—	—	2566K42	00000


Style E







																Stainless Steel Stem

				1/2												0.48" to 0.53"	10 psi	24	3 1/2"	-40 to 250	Neoprene	—	—	—	—	1/4"	Barbed	2516K31	000000


				Style H







																Plastic Stem

																1/2	0.49" to 0.60"	100 psi	231	2 15/16"	-40 to 180	Natural Rubber	Plastic	1/8	BSPP	Male	—	—	2566K11	00000

Wing-Nut Expansion Plugs


Style A	Style C

Style E	Style F

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 C—Style C are the easiest to grip. The handle has more surface area than that of our other styles.

Style E—Style E have an eyebolt, so you can tether or hang them for convenient storage.

Style F—Style F have flanges of the same size, so you can install them as deep as needed. Rated for higher pressures than our other styles, they’re ideal for leak testing.

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				Material
	Size	ID	Air, psi	Water, ft. of head	Overall Ht.	Temp. Range, ° F	Seal	Eyebolt		Each
Style A







				Stainless Steel Plate

				1/2	0.48" to 0.55"	10	24	1 11/16"	0 to 175	Neoprene	—	2613K61	000000


				Style C







								White Plastic Plate

								1/2	0.49" to 0.60"	100	230	2 3/8"	-40 to 180	Natural Rubber	—	2439K41	00000


								Style E







												Zinc-Plated Steel Plate

												1/2	0.51" to 0.60"	35	80	4"	-20 to 225	Neoprene	Zinc-Plated Steel	2565K21	00000


												Style F







																Zinc-Plated Steel Plate

																1/2	0.50" to 0.56"	180	415	1 7/8"	-20 to 125	Natural Rubber	—	24415K35	0000

Hex-Nut Expansion Plugs

Style A

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

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
Style A







				Stainless Steel Plate

				1/2	0.47" to 0.55"	10	24	1 1/4"	-40 to 250	Neoprene	2599K28	000000

Long-Reach Wing-Nut Expansion Plugs

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

			1/2	0.50" to 0.60"	17	40	11"	0 to 125	Neoprene	2988A41	000000

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

			1/2	0.62" to 0.64"	250	576	4 3/8"	-20 to 225	Neoprene	1/8	NPT	Male	2564K31	0000000

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.

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







			Stainless Steel Plate

			1/2	0.47" to 0.55"	10	24	1 3/8"	-40 to 250	Neoprene	2598K23	000000	9191T33	000000

T-Handle Expansion Plugs

Twist the easy-grip T-handle on these plugs to expand the seal and close off pipe openings.

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







			Stainless Steel Plate

			1/2	0.48" to 0.55"	10	24	1 7/8"	-40 to 250	Neoprene	2527K11	000000	2908K11	000000

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

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"	1	22	50	40	1/2	NPT	Female	-20 to 125	Natural Rubber	2580K27	0000000