Iron Pipe Reducers | McMaster-Carr

Filter by

Material

Pipe Material

Fitting Type

System of Measurement

Pipe Size

Thread Type

Shape

Fitting Connection

Pipe Schedule

Gender

Female

Male

For Use With

Acetic Acid (White Vinegar) (10% Concentration)

Sodium Hydroxide (Caustic Soda)

Steam

Sulfuric Acid (80% Concentration)

Pressure Class

Flange Material

Connects To

Maximum Pressure @ Temperature

Length

Body Shape

Fitting Material

Specifications Met

Export Control Classification Number (ECCN)

2B999

EAR99

DFARS Specialty Metals

Exempt

U.S.–Mexico–Canada Agreement (USMCA) Qualifying

REACH

RoHS

Compliant with Exemptions

926 Products

About Pipe and Fittings

Measure your pipe and fittings to identify their pipe size, thread size, schedule, and thread type. Then, find compatible components.

Pipe and Pipe Fittings

Low-Pressure Iron and Steel Threaded Pipe Fittings

Use these fittings for low-pressure applications in noncorrosive environments.

Low-Pressure Iron and Steel
Threaded Pipe Fittings with Sealant

To prevent leaks in low-pressure lines, the male threads on these fittings have an acrylic sealant already applied for extra protection.

Low-Pressure Steel Threaded Pipe Flanges

These flanges are for low-pressure applications in noncorrosive environments.

FM-Approved Low-Pressure
Cast Iron Threaded Pipe Fittings

Suitable for use in fire-protection applications, these pipe fittings are made of cast iron, so they are brittle and can be quickly opened with the strike of a sledge hammer.

FM-Approved Low-Pressure
Cast Iron Threaded Pipe Flanges

Suitable for use in fire-protection applications, these flanges are brittle and can be quickly opened with the strike of a sledge hammer.

Low-Pressure Galvanized Iron
and Steel Threaded Pipe Fittings

The galvanized finish on these fittings provides fair corrosion resistance. Fittings are for use in low-pressure applications.

Low-Pressure Galvanized Iron and Steel
Threaded Pipe Fittings with Sealant

The male threads on these fittings have a sealant applied for extra leak protection.

Thick-Wall Galvanized Iron and Steel
Threaded Pipe Nipples and Pipe

Typically used with medium-pressure galvanized iron and steel threaded pipe fittings. Also known as Schedule 80.

Medium-Pressure Galvanized Iron
and Steel Threaded Pipe Fittings

A galvanized finish gives these fittings fair corrosion resistance. They have the strength to handle medium-pressure applications.

Medium-Pressure Iron and
Steel Threaded Pipe Fittings

For use in noncorrosive environments, these fittings have better strength than our low-pressure iron and steel pipe fittings.

Medium-Pressure Pipe Fittings
for Joining Dissimilar Metals

Use these unions to connect different metals in a piping or plumbing system. They have a gasket with a plastic sleeve that inhibits destructive corrosion.

Low-Pressure Steel Unthreaded Pipe Flanges

Bolt two flanges of the same size together with a gasket to create an access point in a pipe line.

Grooved-End Iron Pipe Fittings

The grooved ends on these iron fittings connect to pipe with a clamp to easily install piping systems.

Drain, Waste, and Vent Iron Pipe Fittings

Also known as no-hub pipe fittings and soil pipe fittings, these fittings are for use in gravity-flow applications both above and below ground.

FM-Approved Iron Pipe Fittings with Flanged Ends

FM approved, these fittings are suitable for use in fire-protection systems. All have flat-surface flanged ends that only mate to another same-size flat-surface flange, pump, or valve with a gasket to create an access point in a pipeline.

Clamps for Easy-Access CPVC
Pipe Fittings for Chemicals

Use these clamps to connect easy-access CPVC pipe fittings and pipe.

Cast Iron-to-PVC Pipe Adapters
for Drain, Waste, and Vent

These adapters connect PVC waste pipe to cast iron pipe without adding bulk. Instead of securing pipes together from the outside like clamp-on couplings, these flexible adapters fit into cast iron pipe to create a tight compression seal.

Low-Pressure Clamp-On Connectors
for Drain, Waste, and Vent

To make installing and maintaining systems easy, these connectors come with clamps that form a strong seal on pipe and fittings once tightened.

Low-Pressure Clamp-On Connectors for Water

Also known as no-hub couplings, these have a one-piece sleeve with a stop in the center, so you know your pipe is always aligned correctly.

Galvanized Iron and Steel Slip-On Framing and Fittings

Galvanized Iron and Steel
Slip-On Framing and Fittings

To provide corrosion resistance in wet environments, this framing is galvanized.

Pipe and Pipe Fittings

Low-Pressure Iron and Steel Threaded Pipe Fittings

Low-Pressure Iron and SteelThreaded Pipe Fittings with Sealant

Low-Pressure Steel Threaded Pipe Flanges

FM-Approved Low-PressureCast Iron Threaded Pipe Fittings

FM-Approved Low-PressureCast Iron Threaded Pipe Flanges

Low-Pressure Galvanized Ironand Steel Threaded Pipe Fittings

Low-Pressure Galvanized Iron and SteelThreaded Pipe Fittings with Sealant

Thick-Wall Galvanized Iron and SteelThreaded Pipe Nipples and Pipe

Medium-Pressure Galvanized Ironand Steel Threaded Pipe Fittings

Medium-Pressure Iron andSteel Threaded Pipe Fittings

Medium-Pressure Pipe Fittingsfor Joining Dissimilar Metals

Low-Pressure Steel Unthreaded Pipe Flanges

Grooved-End Iron Pipe Fittings

Drain, Waste, and Vent Iron Pipe Fittings

FM-Approved Iron Pipe Fittings with Flanged Ends

Clamps for Easy-Access CPVCPipe Fittings for Chemicals

Cast Iron-to-PVC Pipe Adaptersfor Drain, Waste, and Vent

Low-Pressure Clamp-On Connectorsfor Drain, Waste, and Vent

Low-Pressure Clamp-On Connectors for Water

Galvanized Iron and Steel Slip-On Framing and Fittings

Galvanized Iron and SteelSlip-On Framing and Fittings

Low-Pressure Iron and Steel
Threaded Pipe Fittings with Sealant

FM-Approved Low-Pressure
Cast Iron Threaded Pipe Fittings

FM-Approved Low-Pressure
Cast Iron Threaded Pipe Flanges

Low-Pressure Galvanized Iron
and Steel Threaded Pipe Fittings

Low-Pressure Galvanized Iron and Steel
Threaded Pipe Fittings with Sealant

Thick-Wall Galvanized Iron and Steel
Threaded Pipe Nipples and Pipe

Medium-Pressure Galvanized Iron
and Steel Threaded Pipe Fittings

Medium-Pressure Iron and
Steel Threaded Pipe Fittings

Medium-Pressure Pipe Fittings
for Joining Dissimilar Metals

Clamps for Easy-Access CPVC
Pipe Fittings for Chemicals

Cast Iron-to-PVC Pipe Adapters
for Drain, Waste, and Vent

Low-Pressure Clamp-On Connectors
for Drain, Waste, and Vent

Galvanized Iron and Steel
Slip-On Framing and Fittings