Test Plugs | McMaster-Carr

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System of Measurement

Pipe Size

Expansion Plug Type

Four Arm Handle

For Pipe ID

Maximum Air Back Pressure

Less than 10 psi

10 psi to 24 psi

25 psi to 49 psi

50 psi to 99 psi

100 psi or greater

Sealing Location

Material

Stainless Steel

ID

0.022" to 0.079"

0.025" to 0.08"

0.03" to 0.083"

3/64" to 13/64"

1/16" to 11/64"

1/16" to 13/64"

5/64" to 11/64"

Plate Material

Stainless Steel

Deflated Diameter

Shape

Fitting Type

Plug Connection Method

Thread Type

UN/UNF (SAE 45°)

UN/UNF (SAE Straight)

Color

Maximum Temperature

Less than 200° F

200° F to 249° F

250° F to 399° F

400° F to 499° F

500° F or greater

Profile Shape

For Use With

Deionized Water

Hydraulic Fluid

Overall Height

Height

Seal Material

With Bypass

RoHS

Compliant with Exemptions

Export Control Classification Number (ECCN)

DFARS Specialty Metals

REACH

How can we improve?

1,321 Products

Expansion Plugs

Wing-Nut Expansion Plugs

Wing-Nut Expansion Plugs

Twist the wing nut to expand the seal without needing tools

Expansion Plugs with Bypass

Expansion Plugs with Bypass

Use the bypass tube to add fluid to pipelines or to reduce pressure

Air-Inflatable Plugs

Air-Inflatable Plugs

Temporarily seal wide and out-of-round pipes

Hex-Nut Expansion Plugs

Hex-Nut Expansion Plugs

Install with a nutdriver for a tighter seal than hand-tightened nuts

T-Handle Expansion Plugs

T-Handle Expansion Plugs

Easier to grip and twist than wing nuts, especially when wearing gloves

Quick-Snap Expansion Plugs

Quick-Snap Expansion Plugs

Turn the handle to expand the seal, then snap it down for fast installation

Air-Inflatable Plugs with Bypass

Air-Inflatable Plugs with Bypass

Temporarily seal wide and out-of-round pipes, with a bypass tube to add air and fluid

Long-Reach Hex-Nut Expansion Plugs with Bypass

Long-Reach Hex-Nut Expansion Plugs with Bypass

Use the bypass tube to add air and fluid to pipelines or to reduce pressure

Air- and Water-Inflatable Plugs

Air- and Water-Inflatable Plugs

Fit into tight pipe joints with our most flexible expansion plugs

Long-Reach Wing-Nut Expansion Plugs

Long-Reach Wing-Nut Expansion Plugs

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

Square-Head Expansion Plugs

Square-Head Expansion Plugs

Turn the square head into the sealing ring to close off pipelines

Air-Inflatable Plugs for Tee Connections

Air-Inflatable Plugs for Tee Connections

Often used for plumbing tests, thread into tees and inflate to block flow

Air- and Water-Inflatable Plugs for Wye-Joints

Air- and Water-Inflatable Plugs for Wye-Joints

Extra long to seal off two pipes in a wye-joint at the same time

Expansion Plugs for Cleanout Tees

Expansion Plugs for Cleanout Tees

No need to inflate with an air compressor or hand pump

Remote-Access Air-Inflatable Plugs

Remote-Access Air-Inflatable Plugs

Plug pipe that’s hard to reach, such as underground sewage lines

Expansion Plugs for Conduit

Expansion Plugs for Conduit

Seal conduit openings to keep water, dirt, and animals from damaging your wiring

Quick-Locking Expansion Plugs

Quick-Locking Expansion Plugs

Save time by installing with just one quarter turn

Other Products

Pressure Test Fittings

Pressure Test Fittings

Create a temporary connection point for gauges and other testing equipment

Protective Plugs

Protective Plugs

Insert into holes in pipe, containers, panels, and parts to keep out debris

Pipe and Fittings

Pipe and Fittings

Generally thicker and more rigid than tubing for distributing liquids and gases

Protective Caps

Protective Caps

Protect just about anything, including pipe, flanges, screws, and posts

Hose Fittings

Create threaded, barbed, quick-disconnect, and other types of connections between lengths of hose

Bore Sealing Plugs

Bore Sealing Plugs

Permanently seal unthreaded holes in pneumatic and hydraulic components

Drain Cleanouts

Drain Cleanouts

Create an access point to inspect and clean floor drain pipelines

Tamper-Evident Seals

Tamper-Evident Seals

Secure hasps, latches, and other connections to visibly indicate tampering

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