Rubber Test Plugs | McMaster-Carr

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	For Pipe Size For Pipe Size

	Expansion Plug Type Expansion Plug Type


Wing Nut	Hex Nut

Inflatable	T-Handle

Snap	Square Head

	Sealing Location Sealing Location


End of Pipe	Inside Pipe	End of Tube

	For Minimum Pipe ID For Minimum Pipe ID

	Plate Material Plate Material

Stainless Steel

	Maximum Air Back Pressure Maximum Air Back Pressure

Less than 10
psi

100 psi or
greater

	For Maximum Pipe ID For Maximum Pipe ID

	With Bypass With Bypass

	Maximum Water Back Pressure Maximum Water Back Pressure

	Seal Material Seal Material

	Maximum Temperature Maximum Temperature

100° to 174° F

175° to 199° F

200° F or greater

	Overall Height Overall Height

	Handle Material Handle Material

Stainless Steel

	Stem Material Stem Material

Stainless
Steel

	Bypass Connection Type Bypass Connection Type

	Deflated Diameter Deflated Diameter

	Bypass Pipe Size Bypass Pipe Size

	Bypass Thread Type Bypass Thread Type

	Bypass Gender Bypass Gender

	Deflated Height Deflated Height

	Required Inflation Pressure Required Inflation Pressure

	For Maximum Pipe Size (Numeric) For Maximum Pipe Size (Numeric)

	Bypass Cap Material Bypass Cap Material

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298 Products

Expansion Plugs

Wing Nut Expansion Plugs

Wing Nut Expansion Plugs

Twist the wing nut on these plugs to expand the seal.

Hex-Nut Expansion Plugs

Hex-Nut Expansion Plugs

Tighten the nut on these plugs to expand the seal.

T-Handle Expansion Plugs

T-Handle Expansion Plugs

Twist the easy-grip t-handle on these plugs to expand the seal.

Quick-Snap Expansion Plugs

Quick-Snap Expansion Plugs

Turn the cam handle to expand the seal, then snap the handle down to hold it in place.

Square-Head Expansion Plugs

Square-Head Expansion Plugs

Turn the square head of the plug into the sealing ring to close off pipe openings.

Expansion Plugs with Bypass

Use the bypass tube on these plugs to add air, water, and other fluid to your pipeline or to relieve pressure while testing.

Deep-Reach Hex Nut
Expansion Plugs with Bypass

Use the bypass tube to add air, water, and fluid or relieve back pressure.

Deep-Reach Wing
Nut Expansion Plugs

Insert these plugs deep within your pipe to seal it off from the inside.

Air-Inflatable Plugs

Air-Inflatable Plugs

Also known as pneumatic plugs, these plugs conform to wide and out-of-round pipes.

Air- and Water-Inflatable Plugs

Air- and Water-Inflatable Plugs

Penetrate tight pipe junctures with the most flexible expansion plugs we offer.

Air- and Water-Inflatable
Plugs for Y-Joints

Air- and Water-Inflatable Plugs for Y-Joints

These extra-long plugs allow you to seal off two pipes at the same time. They have two separate inflation chambers to release back pressure gradually and prevent splash back as water clears the drain line.

Air-Inflatable Plugs with Bypass

Air-Inflatable Plugs with Bypass

Use the bypass tube on these plugs to add air, water, and other fluid to your pipeline or to relieve back pressure while testing.

Expansion Plugs for Tubing

These plugs are designed for metal and rigid plastic tubing.

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