Malleable Iron Pipe Fittings

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5,154 Products

How to Identify and Measure Fittings

Pipe size is an industry designation, not the actual size. View information about how to measure threaded and unthreaded pipe and pipe fittings.

Low-Pressure Iron and Steel Threaded Pipe Fittings

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

Standard-Wall Steel Threaded
Pipe Nipples and Pipe

Also known as Schedule 40, this steel pipe is designed for low-pressure applications.

Standard-Wall Steel Threaded
Pipe Nipple and Pipe Assortments

Assortments contain threaded pipe in various lengths.

Standard-Wall Steel Pipe Nipples and Pipe
with Right-Hand and Left-Hand Threads

Pipe has clockwise (right-hand) threads on one end and counterclockwise (left-hand) threads on the other end. When you use a wrench to turn, connections on both ends tighten at the same time.

Standard-Wall Steel Threaded
Pipe Nipples and Pipe with Sealant

For extra leak protection in low-pressure lines, the threads of this Schedule 40 pipe have sealant already applied.

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 Iron Threaded Pipe Fittings
with Right-Hand and Left-Hand Threads

The threads on these fittings have clockwise (right-hand) threads on one end and counterclockwise (left-hand) threads on the other end.

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.

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.

Low-Pressure Galvanized Iron Threaded Pipe
Fittings with Right-Hand and Left-Hand Threads

One end of these fittings has clockwise (right-hand) threads and the other has counterclockwise (left-hand) threads. Their galvanized finish gives them fair corrosion resistance.

Standard-Wall Galvanized Steel Threaded
Pipe Nipples and Pipe with Sealant

The acrylic sealant on this pipe offers extra protection against leaks. Also known as schedule 40 pipe, this pipe is designed for use in low-pressure environments.

Standard-Wall Galvanized Steel
Threaded Pipe Nipples and Pipe

Made of galvanized steel, this Schedule 40 pipe has fair corrosion resistance and is designed for low-pressure applications.

Standard-Wall Galvanized Steel Threaded
Pipe Nipple and Pipe Assortments

Assortments contain threaded pipe in various lengths.

Standard-Wall Galvanized Steel Pipe Nipples
and Pipe for Joining Dissimilar Metals

A plastic sleeve prevents destructive corrosion when connecting different metals.

Medium-Pressure Iron and Steel Threaded Pipe and Pipe Fittings

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.

Thick-Wall Steel Threaded Pipe Nipples and Pipe

Typically used with medium-pressure 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.

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 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.

Compact Extreme-Pressure Steel Threaded Pipe Fittings

Compact Extreme-Pressure
Steel Threaded Pipe Fittings

These fittings are strong enough to handle extreme pressures, yet small enough to fit into cramped spaces.

Compact Precision Extreme-Pressure
Steel Threaded Pipe Fittings

Made to tighter tolerances than other steel pipe fittings, these are also known as instrumentation fittings.

High-Pressure Iron and Steel Threaded Pipe and Pipe Fittings

Extra-Thick-Wall Steel Threaded
Pipe Nipples and Pipe

Typically used with high-pressure iron and steel threaded pipe fittings. Also known as Schedule 160.

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

Typically used with high-pressure galvanized iron and steel threaded pipe fittings. Also known as Schedule 160.

Iron and Steel Unthreaded Pipe and Pipe Fittings

Standard-Wall Butt-Weld Steel
Unthreaded Pipe Fittings

Butt-weld fittings allow for a smooth, flush connection that provides maximum flow.

Standard-Wall Steel Unthreaded
Pipe Nipples and Pipe

Typically used with standard-wall and low-pressure iron and steel unthreaded pipe fittings. Also known as Schedule 40.

Thick-Wall Butt-Weld Steel Unthreaded Pipe Fittings

With thicker, stronger walls than our standard-wall butt-weld pipe fittings, these fittings stand up to your high strength applications.

Thick-Wall Steel Unthreaded Pipe Nipples and Pipe

Typically used with thick-wall and high-pressure iron and steel unthreaded pipe fittings. Also known as Schedule 80.

Super-Thick-Wall Steel Unthreaded Pipe

Typically used with extreme-pressure iron and steel unthreaded pipe fittings. Pipe is also known as Schedule XXH .

Iron and Steel Clamp-On Pipe and Pipe Fittings

Grooved-End Iron Pipe Fittings

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

Standard-Wall Grooved-End
Steel Pipe Nipples and Pipe

This steel pipe has grooved ends that connect to fittings with a clamp (sold separately) for an easy way to 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.

Drain, Waste, and Vent Iron Pipe

Use this pipe in gravity-flow applications both above and below ground.

Clamp-On Connectors

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.

Low-Pressure Clamp-On
Connectors for Chemical Waste

With an FEP sleeve and PTFE sealing tape, these connectors withstand chemicals better than rubber connectors. Use them for joining low-pressure chemical waste drainpipe and fittings or transitioning between different chemical piping.

Low-Pressure Quick-Lock
Clamp-On Connectors for Air

A turn of the T-handle will tighten and loosen these connectors, so you can quickly disassemble and reassemble your lines without tools.

Low-Pressure Clamp-On Connectors for Air

These connectors are for use in low-pressure air and vacuum conveying systems, as well as in gravity-flow systems.

High-Pressure Clamp-On Connectors

Use in high-pressure applications up to 500 psi.

Plastic Pipe and Pipe Fittings

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.

Standard-Wall Plastic Pipe Fittings for Water

Connect these fittings to Schedule 40 plastic pipe—they are the industry standard for residential and commercial low-pressure plumbing and water supply applications. They are plastic for good corrosion resistance.

Thick-Wall Plastic Pipe Fittings for Water

Connect these fittings to Schedule 80 pipe. With thicker, stronger walls than standard-wall fittings, they can handle heavy duty supply applications, such as water processing, wastewater treatment, and irrigation.

How to Identify and Measure Fittings

Low-Pressure Iron and Steel Threaded Pipe and Pipe Fittings

Low-Pressure Iron and Steel Threaded Pipe Fittings

Standard-Wall Steel ThreadedPipe Nipples and Pipe

Standard-Wall Steel ThreadedPipe Nipple and Pipe Assortments

Standard-Wall Steel Pipe Nipples and Pipewith Right-Hand and Left-Hand Threads

Standard-Wall Steel ThreadedPipe Nipples and Pipe with Sealant

Low-Pressure Iron and SteelThreaded Pipe Fittings with Sealant

Low-Pressure Iron Threaded Pipe Fittingswith Right-Hand and Left-Hand Threads

FM-Approved Low-PressureCast Iron Threaded Pipe Fittings

Low-Pressure Galvanized Ironand Steel Threaded Pipe Fittings

Low-Pressure Galvanized Iron and SteelThreaded Pipe Fittings with Sealant

Low-Pressure Galvanized Iron Threaded PipeFittings with Right-Hand and Left-Hand Threads

Standard-Wall Galvanized Steel ThreadedPipe Nipples and Pipe with Sealant

Standard-Wall Galvanized SteelThreaded Pipe Nipples and Pipe

Standard-Wall Galvanized Steel ThreadedPipe Nipple and Pipe Assortments

Standard-Wall Galvanized Steel Pipe Nipplesand Pipe for Joining Dissimilar Metals

Medium-Pressure Iron and Steel Threaded Pipe and Pipe Fittings

Medium-Pressure Iron andSteel Threaded Pipe Fittings

Thick-Wall Steel Threaded Pipe Nipples and Pipe

Medium-Pressure Galvanized Ironand Steel Threaded Pipe Fittings

Thick-Wall Galvanized Iron and SteelThreaded Pipe Nipples and Pipe

Medium-Pressure Pipe Fittingsfor Joining Dissimilar Metals

Compact Extreme-Pressure Steel Threaded Pipe Fittings

Compact Extreme-PressureSteel Threaded Pipe Fittings

Compact Precision Extreme-PressureSteel Threaded Pipe Fittings

High-Pressure Iron and Steel Threaded Pipe and Pipe Fittings

Extra-Thick-Wall Steel ThreadedPipe Nipples and Pipe

Extra-Thick-Wall Galvanized SteelThreaded Pipe Nipples and Pipe

Iron and Steel Unthreaded Pipe and Pipe Fittings

Standard-Wall Butt-Weld SteelUnthreaded Pipe Fittings

Standard-Wall Steel UnthreadedPipe Nipples and Pipe

Thick-Wall Butt-Weld Steel Unthreaded Pipe Fittings

Thick-Wall Steel Unthreaded Pipe Nipples and Pipe

Super-Thick-Wall Steel Unthreaded Pipe

Iron and Steel Clamp-On Pipe and Pipe Fittings

Grooved-End Iron Pipe Fittings

Standard-Wall Grooved-EndSteel Pipe Nipples and Pipe

Drain, Waste, and Vent Iron Pipe Fittings

Drain, Waste, and Vent Iron Pipe

Clamp-On Connectors

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

Low-Pressure Clamp-On Connectors for Water

Low-Pressure Clamp-OnConnectors for Chemical Waste

Low-Pressure Quick-LockClamp-On Connectors for Air

Low-Pressure Clamp-On Connectors for Air

High-Pressure Clamp-On Connectors

Plastic Pipe and Pipe Fittings

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

Standard-Wall Plastic Pipe Fittings for Water

Thick-Wall Plastic Pipe Fittings for Water

Standard-Wall Steel Threaded
Pipe Nipples and Pipe

Standard-Wall Steel Threaded
Pipe Nipple and Pipe Assortments

Standard-Wall Steel Pipe Nipples and Pipe
with Right-Hand and Left-Hand Threads

Standard-Wall Steel Threaded
Pipe Nipples and Pipe with Sealant

Low-Pressure Iron and Steel
Threaded Pipe Fittings with Sealant

Low-Pressure Iron Threaded Pipe Fittings
with Right-Hand and Left-Hand Threads

FM-Approved Low-Pressure
Cast Iron Threaded Pipe Fittings

Low-Pressure Galvanized Iron
and Steel Threaded Pipe Fittings

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

Low-Pressure Galvanized Iron Threaded Pipe
Fittings with Right-Hand and Left-Hand Threads

Standard-Wall Galvanized Steel Threaded
Pipe Nipples and Pipe with Sealant

Standard-Wall Galvanized Steel
Threaded Pipe Nipples and Pipe

Standard-Wall Galvanized Steel Threaded
Pipe Nipple and Pipe Assortments

Standard-Wall Galvanized Steel Pipe Nipples
and Pipe for Joining Dissimilar Metals

Medium-Pressure Iron and
Steel Threaded Pipe Fittings

Medium-Pressure Galvanized Iron
and Steel Threaded Pipe Fittings

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

Medium-Pressure Pipe Fittings
for Joining Dissimilar Metals

Compact Extreme-Pressure
Steel Threaded Pipe Fittings

Compact Precision Extreme-Pressure
Steel Threaded Pipe Fittings

Extra-Thick-Wall Steel Threaded
Pipe Nipples and Pipe

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

Standard-Wall Butt-Weld Steel
Unthreaded Pipe Fittings

Standard-Wall Steel Unthreaded
Pipe Nipples and Pipe

Standard-Wall Grooved-End
Steel Pipe Nipples and Pipe

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

Low-Pressure Clamp-On
Connectors for Chemical Waste

Low-Pressure Quick-Lock
Clamp-On Connectors for Air

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