Aluminum Square-Head Plugs | McMaster-Carr

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	Stem Material Stem Material	Show

	Stem Material Stem Material	Hide

Stainless
Steel

	For Pipe Size For Pipe Size

	Maximum Air Back Pressure Maximum Air Back Pressure

125 psi or greater

	For Minimum Pipe ID For Minimum Pipe ID

	With Bypass With Bypass

	For Maximum Pipe ID For Maximum Pipe ID

	Maximum Water Back Pressure Maximum Water Back Pressure

288 ft. of head

	Bypass Cap Material Bypass Cap Material

	Sealing Location Sealing Location

	End of Pipe

	Seal Material Seal Material

	Bypass Pipe Size Bypass Pipe Size

	Bypass Thread Type Bypass Thread Type

	DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense Acquisition Regulations Supplement)

DFARS Specialty Metals
COTS-Exempt

	Overall Height Overall Height

	Bypass Connection Type Bypass Connection Type

	Minimum Temperature Minimum Temperature

	Maximum Temperature Maximum Temperature

Less than 200° F

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4 Products

Expansion Plugs with Bypass

A

Use the bypass tube on these plugs to add air, water, and other fluid to your pipeline or to relieve pressure while testing. Maximum air back pressure is the amount of pressure a plug can withstand without moving. 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	O'all Ht.	Temp. Range, °F	Seal	Bypass Cap	Pipe Size	Thread Type	Gender		Each
Style A
Aluminum Stem
1 1/2	1.53"-2.25"	125	288	8 1/4"	-20° to 170°	Natural Rubber	Metal	3/8	NPS	Male	0000000	000000
2	1.79"-2.38"	125	288	8 1/4"	-20° to 170°	Natural Rubber	Metal	3/8	NPS	Male	0000000	00000
3	2.77"-3.25"	125	288	8 1/4"	-20° to 170°	Natural Rubber	Metal	3/8	NPS	Male	0000000	00000
4	3.85"-4.25"	35	81	8 1/4"	-20° to 170°	Natural Rubber	Metal	1/2	NPS	Male	0000000	00000

The quick brown fox jumped over the lazy dog. Pedestal (35" Ht. x 4" Wd. x 4" Dp.)