Rubber Test Plugs | McMaster-Carr

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	Seal Material Seal Material

Natural Rubber

Neoprene Rubber

Buna-N Rubber

Polyurethane Rubber

	For Pipe Size For Pipe Size

	Expansion Plug Type Expansion Plug Type


Wing Nut	Inflatable

Hex Nut	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

Steel

Plastic

	For Maximum Pipe ID For Maximum Pipe ID

	Maximum Air Back Pressure Maximum Air Back Pressure

	With Bypass With Bypass

Yes

	System of Measurement System of Measurement

Inch

	Maximum Water Back Pressure Maximum Water Back Pressure

	Maximum Temperature Maximum Temperature

Less than 200° F

200° to 249° F

250° to 399° F

	Overall Height Overall Height

	Minimum Temperature Minimum Temperature

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

DFARS Specialty Metals
COTS-Exempt

	RoHS (Restriction of Hazardous Substances) RoHS (Restriction of Hazardous Substances)

RoHS Compliant

RoHS Compliant with
Exemptions

	REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) REACH (Registration, Evaluation, Authorization and Restriction of Chemicals)

REACH Compliant

	Deflated Diameter Deflated Diameter

	Stem Material Stem Material

	Handle Material Handle Material

Brass

Stainless Steel

	Bypass Connection Type Bypass Connection Type

Pipe

Tube

Hose

	Bypass Thread Type Bypass Thread Type

	Bypass Pipe Size Bypass Pipe Size

	Bypass Gender Bypass Gender

Male

Female

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308 Products

Expansion Plugs

Wing Nut Expansion Plugs

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

Hex-Nut Expansion Plugs

Tighten the nut on these plugs to expand the seal.

T-Handle Expansion Plugs

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

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

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.

Air-Inflatable Plugs

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

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

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

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

Expansion Plugs for Tubing

These plugs are designed for metal and rigid plastic tubing.