Drain Plugs | McMaster-Carr

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Pipe Size

Expansion Plug Type

Four Arm Handle

For Pipe ID

Material

Stainless Steel

Sealing Location

Plate Material

Stainless Steel

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

ID

25/64" to 19/32"

33/64" to 45/64"

41/64" to 25/32"

23/32" to 15/16"

51/64" to 1 1/64"

29/32" to 1 1/16"

61/64" to 1 3/32"

1 1/32" to 1 1/4"

1 5/64" to 1 21/64"

1 3/16" to 1 29/64"

1 15/64" to 1 17/32"

1 5/16" to 1 39/64"

Shape

Fitting Type

Reducing Adapter

Plug Connection Method

Deflated Diameter

Overall Height

For Use With

Deionized Water

Hydraulic Fluid

Hydrochloric Acid

Phosphoric Acid

Seal Material

System of Measurement

Handle Material

Stainless Steel

REACH

Maximum Temperature

Less than 150° F

150° F to 199° F

200° F to 249° F

250° F to 349° F

350° F or greater

RoHS

Compliant with Exemptions

Color

DFARS Specialty Metals

Thread Type

Export Control Classification Number (ECCN)

Fitting Connection

Spec Image

Spec Image

Spec Image

Spec Image

Inlet Pipe Size

How can we improve?

790 Products

Fluid Handling

Expansion Plugs

Expansion Plugs

Seal pipe and tubing lines when checking for leaks

Drain Valves

Vent air or discharge liquids to remove excess fluid from your system

Bore Sealing Plugs

Bore Sealing Plugs

Permanently seal unthreaded holes in pneumatic and hydraulic components

Pipe Plugs

Insert into the ends of pipe to keep out dirt and debris

Pipe Caps

Cover the ends of pipe to keep out dirt and debris

Pipe Fittings

Form threaded, barbed, flanged, and other types of connections between lengths of pipe

Pipe Flanges

Create an access point in a line by bolting two same-size flanges together with a gasket

Breather Vents

Maintain even pressure and vacuum as temperatures change by allowing airflow in tanks and enclosures

Facility and Grounds Maintenance

Sink Drain Stoppers

Sink Drain Stoppers

Plug drains to fill up sinks and tubs

Sink Drains

Empty liquids from sinks into sewer lines

Floor Drain Trap Seals

Floor Drain Trap Seals

Stop sewer gases from escaping through rarely used floor drains if the P-trap dries out

Drain Check Valves

Drain Check Valves

Prevent water damage by placing into floor drains to stop sewer back-ups

Shower Stoppers

Shower Stoppers

Push down to plunge and cut trapped material to prevent clogs

Drain Cleanouts

Drain Cleanouts

Create an access point to inspect and clean floor drain pipelines

Manhole Covers

Made of cast iron to handle high-volume foot and vehicle traffic.

Storm Drain Filters

Storm Drain Filters

Prevent leaves, sticks, and trash from washing down storm drains and grates

Building and Machinery Hardware

Protective Plugs

Protective Plugs

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

Electrical

Electrical Enclosure Drains

Electrical Enclosure Drains

Release moisture to keep components dry

Electrical Enclosure Drain Vents

Electrical Enclosure Drain Vents

Prevent moisture from getting trapped inside enclosures while letting air flow through

Safety Equipment

Floor Drain Plugs

Floor Drain Plugs

Prevent oil and other spills from going down your floor drain

Spill-Control Drain Covers

Spill-Control Drain Covers

Block grates and manholes so liquid can't get in and odors can't get out

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