Pipe U-Bends | McMaster-Carr

	Shape Shape


180° Bend	270° Bend

	Pipe Size Pipe Size

1/2
3/4
1
1 1/4
1 1/2
2
2 1/2
3
4
6
8

	Material Material

	Connection Style Connection Style

	Schedule Schedule


40	80

	For Pipe Schedule For Pipe Schedule


40	80

	For Pipe Material For Pipe Material

Steel

Aluminum

Plastic

	Type Type


Connector	Trap

Union	Adapter

	OD OD

	For Use With For Use With

	Connection Type Connection Type


Pipe	Tube

	Specifications Met Specifications Met

	Trap Type Trap Type


P-Trap	S-Trap

Drum Trap

	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

	Length Length

	ID ID

	Wall Thickness Wall Thickness

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

REACH Compliant

	Construction Construction

Welded

Seamless

	Finish Finish

Chrome Plated

Black Coated

Galvanized

	Maximum Pressure Maximum Pressure

150 psi @ 72° F

Gravity Flow

	Color Color

	White		Black
	Light Gray		Clear

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76 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.

Standard-Wall Butt-Weld Steel Unthreaded Pipe Fittings

Butt-weld fittings allow for a smooth connection that provides maximum flow. They have beveled ends that, when flush to pipe, create a trough for a strong, permanent weld. Fittings are also known as Schedule 40. They are for use in noncorrosive environments.

180° bend connectors are also known as U-bends.

For technical drawings and 3-D models, click on a part number.

180° Bend Connectors

For Use With: Air, Steam, Oil, Water, Natural Gas
Specifications Met: ASTM A234, ASME B16.9
Pipe Nipples and Pipe: Use Schedule 40 steel
Flanges: Use Class 150 steel

Pipe Size	Wall Thick.	Construction		Each
1/2	0.109"	Welded	000000000	0000000
3/4	0.113"	Welded	000000000	000000
1	0.133"	Welded	000000000	000000
1 1/4	0.14"	Welded	000000000	000000
1 1/2	0.145"	Welded	000000000	000000
2	0.154"	Welded	000000000	000000
2 1/2	0.203"	Welded	000000000	000000
3	0.216"	Welded	000000000	000000
4	0.237"	Welded	000000000	000000
6	0.28"	Welded	000000000	000000
8	0.322"	Welded	000000000	00000000

Thick-Wall Butt-Weld Steel Unthreaded Pipe Fittings

With thick walls, these fittings are the strongest steel butt-weld fittings we offer. Weld them flush against pipe to provide a smooth connection for maximum flow. Fittings have beveled ends that create a trough for a leak-resistant, permanent weld. Use in noncorrosive environments.

180° bend connectors are also known as U-bends.

For technical drawings and 3-D models, click on a part number.

180° Bend Connectors

For Use With: Air, Steam, Oil, Water, Natural Gas
Specifications Met: ASTM A234
Pipe Nipples and Pipe: Use Schedule 80 steel
Flanges: Use Class 300 steel

Pipe Size	Wall Thick.	Construction		Each
1 1/2	0.2"	Seamless	0000000	0000000
2	0.218"	Seamless	0000000	000000
2 1/2	0.276"	Seamless	0000000	000000
3	0.3"	Seamless	0000000	000000
4	0.337"	Seamless	0000000	000000
6	0.432"	Seamless	0000000	000000

Low-Pressure Iron and Steel Threaded Pipe Fittings

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

180° bend connectors are also known as U-bends.

For technical drawings and 3-D models, click on a part number.

180° Bend Connectors

For Use With: Air, Steam, Oil, Water, Natural Gas
Pressure Class: 150
Specifications Met:
1 Pipe Size: ASME B1.20.1, ASME B16.3
All other sizes: ASME B1.20.1, ASME B16.3, UL Listed
Pipe Nipples and Pipe: Use Schedule 40 steel

NPT Female
Pipe Size	Max. Pressure	Max. Steam Pressure	Material		Each
1/2	150 psi @ 72° F	150 psi @ 350° F	Black-Coated Iron	000000000	000000
3/4	150 psi @ 72° F	150 psi @ 350° F	Black-Coated Iron	000000000	00000
1	150 psi @ 72° F	150 psi @ 350° F	Black-Coated Iron	000000000	00000
1 1/4	150 psi @ 72° F	150 psi @ 350° F	Black-Coated Iron	000000000	00000
1 1/2	150 psi @ 72° F	150 psi @ 350° F	Black-Coated Iron	000000000	000000
2	150 psi @ 72° F	150 psi @ 350° F	Black-Coated Iron	000000000	000000

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.

180° bend connectors are also known as U-bends.

For technical drawings and 3-D models, click on a part number.

180° Bend Connectors

For Use With: Air, Steam, Oil, Water, Natural Gas
Pressure Class: 150
Specifications Met: ASTM A197, UL Listed, ASME B16.3, ASME B1.20.1
Pipe Nipples and Pipe: Use Schedule 40 galvanized steel
Flanges: Use Class 150 galvanized steel

NPT Female
Pipe Size	Max. Pressure	Max. Steam Pressure	Material		Each
3/4	150 psi @ 72° F	150 psi @ 350° F	Galvanized Iron	00000000	000000
1	150 psi @ 72° F	150 psi @ 350° F	Galvanized Iron	00000000	00000
1 1/2	150 psi @ 72° F	150 psi @ 350° F	Galvanized Iron	00000000	000000
2	150 psi @ 72° F	150 psi @ 350° F	Galvanized Iron	00000000	000000

Drain, Waste, and Vent Iron Pipe Fittings

Use these fittings in gravity-flow applications both above and below ground. They are also known as no-hub pipe fittings and soil pipe fittings. To connect, place the end of the fitting against your pipe or another fitting and connect with a low-pressure clamp-on connector (sold separately). The clamp-on connector is also known as a no-hub coupling. Fittings are for use in noncorrosive environments.

The 270° bend connectors are also known as P-traps.

For technical drawings and 3-D models, click on a part number.

270° Bend Connectors

For Use With: Water
Specifications Met: ASTM A888, CISPI 301

Pipe Size		Each
2	0000000	000000
3	0000000	00000
4	0000000	000000

Straight Connectors

For Use With: Water
Temperature Range: 0° to 180° F
Specifications Met: ASTM A666, ASTM C564
For Pipe Material: Aluminum, Iron, Steel, Stainless Steel, PVC Plastic

For Pipe Size	Lg.	Max. Pressure	Material	Sleeve Material		Each
2	3"	15 psi @ 72° F	304 Stainless Steel	Neoprene Rubber	0000000	000000
3	3"	15 psi @ 72° F	304 Stainless Steel	Neoprene Rubber	0000000	00000
4	3"	15 psi @ 72° F	304 Stainless Steel	Neoprene Rubber	0000000	00000

Straight Adapters

For Use With: Water
Temperature Range: 0° to 180° F
Specifications Met: ASTM A666, ASTM C564
For Pipe Material: Aluminum, Iron, Steel, Stainless Steel, PVC Plastic
For Tube Material: Copper

For Pipe Size	For Copper Tube Size	Lg.	Max. Pressure	Material	Sleeve Material		Each
2	2	3"	15 psi @ 72° F	304 Stainless Steel	Neoprene Rubber	0000000	000000
3	3	3"	15 psi @ 72° F	304 Stainless Steel	Neoprene Rubber	0000000	00000
4	4	3"	15 psi @ 72° F	304 Stainless Steel	Neoprene Rubber	0000000	00000

Straight Reducers

For Use With: Water
Temperature Range: 0° to 180° F
Specifications Met: ASTM A666, ASTM C564
For Pipe Material: Aluminum, Iron, Steel, Stainless Steel, PVC Plastic

For Pipe Size
(A)	(B)	Lg.	Max. Pressure	Material	Sleeve Material		Each
2	1 1/2	3"	15 psi @ 72° F	304 Stainless Steel	Neoprene Rubber	0000000	000000
3	2	3"	15 psi @ 72° F	304 Stainless Steel	Neoprene Rubber	0000000	00000
4	3	3"	15 psi @ 72° F	304 Stainless Steel	Neoprene Rubber	0000000	00000

Low-Pressure Aluminum Threaded Pipe Fittings

In addition to being lightweight, these aluminum fittings offer good corrosion resistance. Use them in low-pressure flow applications. To prevent cracking, do not tighten more than a 1/4-turn past hand tight.

180° bend connectors are also known as U-bends.

For technical drawings and 3-D models, click on a part number.

180° Bend Connectors

For Use With: Air, Oil, Water
Pressure Class: 150
Pipe Nipples and Pipe: Use Schedule 40 aluminum
Flanges: Use Class 125 aluminum

NPT Female
Pipe Size	Max. Pressure		Each
1/2	150 psi @ 72° F	000000000	000000
3/4	150 psi @ 72° F	000000000	00000
1	150 psi @ 72° F	000000000	00000

Drain, Waste, and Vent ABS Pipe Fittings for Chemicals

For Use With: Sodium Hydroxide
Max. Temperature: 180° F
Specifications Met: ASTM D2661, ASTM D3311, ASTM D3965, ASTM F1498
Pipe Nipples and Pipe: Use Schedule 40 ABS Plastic
Flanges: Use Schedule 40 ABS Plastic

These Schedule 40 fittings are an economical option for gravity-flow chemical waste systems. They are ABS plastic, which has excellent strength and impact resistance and good chemical resistance. Fittings meet ASTM D2661, ASTM D3311, ASTM D3965, and ASTM F1498 specifications and testing requirements for material quality and product dimensions.

Attach socket-connect ends to unthreaded pipe or another socket-connect fitting with ABS cement (also known as solvent weld).

Warning: Never use plastic pipe fittings and pipe with compressed air or gas.

Sealants cannot be sold to Colorado, Connecticut, District of Columbia, Delaware, Illinois, Indiana, Massachusetts, Maryland, Maine, Michigan, New Hampshire, New Jersey, Northern Virginia, New York, Ohio, Pennsylvania, Rhode Island, or Utah due to local VOC (Volatile Organic Compounds) regulations.

For technical drawings and 3-D models, click on a part number.

180º Bend Connectors, Female Socket Connect

180° bend fittings are also known as drum taps.

Pipe Size	Socket Dp.	Material	Color		Each
1 1/2	7/8"	ABS Plastic	Black	00000000	000000

Pipe Cement (8 fl. oz. Can)

00000000

Each

00000

270° Bend Connectors, Female Socket Connect

270° bend fittings are also known as P-traps. They separate into three pieces, so you can access your line.

Pipe Size	Socket Dp.	Material	Color		Each
1 1/4	13/16"	ABS Plastic	Black	00000000	000000
1 1/2	13/16"	ABS Plastic	Black	00000000	00000
2	13/16"	ABS Plastic	Black	00000000	00000

Pipe Cement (8 fl. oz. Can)

00000000

Each

00000

270° Bend Adapters, Female Socket Connect × Female Compression Tube

Fittings with a compression end are also known as slip-joint fittings. Insert the tube into the compression end and turn the nut until hand tight. Since you don't have to wait for cement to dry, they are quicker to install than socket-connect fittings.

270° bend fittings are also known as P-traps. They separate into three pieces, so you can access your line.

Pipe Size	Socket Dp.	For Tube OD	Material	Color		Each
1 1/2	11/16"	1 1/2"	ABS Plastic	Black	00000000	000000

Pipe Cement (8 fl. oz. Can)

00000000

Each

00000

Gravity-Flow CPVC Pipe Fittings for Corrosive Chemical Waste

For Use With: Hydrochloric Acid, Nitric Acid, Salt Water, Sulfuric Acid
Temperature Range: 40° to 200° F
Specifications Met: ASTM F2618, IAPMO Certified, NSF/ANSI 14, UL 94 V-0

Made of CPVC, these fittings have better chemical resistance than ABS plastic gravity-flow fittings and can stand up to highly-corrosive acids and other harsh substances. They meet NSF/ANSI 14 requirements for use in corrosive waste gravity-flow systems. Fittings are comparable to Corzan. They meet UL 94 V-0 for flame retardance and ASTM F2618 specifications and testing requirements for material quality. They are IAPMO certified to comply with the International Association for Plumbing and Mechanical Officials product performance standards and the Uniform Plumbing Code (UPC) for installation and repair of plumbing systems.

Attach socket-connect ends to unthreaded pipe or another socket-connect fitting with a CPVC primer and cement (also known as solvent weld).

270° bend fittings are also known as P-traps. They separate into three pieces, so you can access your line.

Warning: Never use plastic pipe fittings and pipe with compressed air or gas.

For technical drawings and 3-D models, click on a part number.

270° Bend Connectors, Female Socket Connect

Pipe Size	Socket Dp.	Material	Color		Each
1 1/2	11/16"	CPVC Plastic	Light Gray	0000000	000000
2	3/4"	CPVC Plastic	Light Gray	0000000	000000

Pipe Cement (16 fl. oz. Can)

0000000

Each

000000

Aboveground Standard-Wall PVC Pipe Fittings for Drain, Waste, and Vent

For Use With: Water
Max. Temperature: 140° F
Specifications Met: ASTM D1784, ASTM D2665
Pipe Nipples and Pipe: Use Schedule 40 PVC Plastic
Flanges: Use Schedule 40 PVC Plastic

These Schedule 40 fittings are the industry standard for gravity-flow drain, waste, and vent (DWV) applications. Fittings are PVC, which has good corrosion resistance. They meet ASTM D1784 and ASTM D2665 specifications and testing requirements for material quality.

Attach socket-connect ends to unthreaded pipe or another socket-connect fitting with a PVC primer and cement (also known as solvent weld).

Warning: Never use plastic pipe fittings and pipe with compressed air or gas.

For technical drawings and 3-D models, click on a part number.

180° Bend Connectors, Female Socket Connect

180° bend fittings are also known as drum taps.

Pipe Size	Socket Dp.	Material	Color		Each
1 1/2	29/64"	PVC Plastic	White	0000000	000000

Pipe Cement (8 fl. oz. Can)

00000000

Each

00000

Union 270° Bend Connectors, Female Socket Connect

270° bend fittings are also known as P-traps. They separate into three pieces, so you can access your line.

Pipe Size	Socket Dp.	Material	Color		Each
1 1/4	3/4"	PVC Plastic	White	0000000	000000
1 1/2	3/4"	PVC Plastic	White	0000000	00000
2	13/16"	PVC Plastic	White	0000000	00000

Pipe Cement (8 fl. oz. Can)

00000000

Each

00000

Union 270° Bend Adapters, Female Socket Connect × Female Compression Tube

270° bend fittings are also known as P-traps. They separate into three pieces, so you can access your line.

Pipe Size	Socket Dp.	For Tube OD	Material	Color		Each
1 1/2	13/16"	1 1/2"	PVC Plastic	White	0000000	000000

Pipe Cement (8 fl. oz. Can)

00000000

Each

00000

Easy-to-Clean J-Bends

Loosen the knobs on this J-bend to clean it out without removing it from your pipe system. It has a removable screen that traps objects while allowing water to flow.

			Slip-Joint Outlet Connection
OD	Inlet Connection Type	Includes		Each
Clear Plastic
1 1/2"	Slip Joint	1 1/4" Washer Adapter, Slip-Joint Nuts and Washers	0000000	00000

Plastic Sink Drains with Adjustable-Height P-Trap

This drain is chemical resistant and often used in lab sinks. The P-trap prevents vapors from returning up through the drain.

			Outlet
For Sink Drain Opening Dia.	Top Dia.	Max. Vertical Adjustment	Pipe Size	Thread Type	Gender	Color	Trap Color	Specifications Met		Each
Drains with Plastic Stopper
1 7/8"-3"	3 3/8"	5 1/2"	1 1/2	NPT	Male	Black	White	ASTM F1412	0000000	0000000

J-Bends

NPT Female Pipe Outlet Connection

Slip-Joint Outlet Connection

Use these J-bends as replacement parts for P-traps and S-traps.

For technical drawings and 3-D models, click on a part number.

			NPT Female Pipe Outlet Connection			Slip-Joint Outlet Connection
OD	Inlet Connection Type	Includes	Outlet Pipe Size		Each		Each
Chrome-Plated Brass
1 1/4"	Slip Joint	Slip-Joint Nuts and Washers	1 1/4	0000000	000000	0000000	000000
1 1/2"	Slip Joint	Slip-Joint Nuts and Washers	1 1/2	0000000	00000	0000000	00000

Sink Drain Traps

Prevent sewer gas from entering your building. Traps swivel and adjust vertically for convenient installation.

For technical drawings and 3-D models, click on a part number.

Traps

Plastic P-Trap

Plastic S-Trap

Brass P-Trap

Brass S-Trap

				P-Trap (Wall Mount)		S-Trap (Floor Mount)
OD	Inlet Connection Type	Outlet Pipe Connection Type	Includes		Each		Each
White Plastic
1 1/2"	Slip Joint	Unthreaded	1 1/4" Washer Adapter, Slip-Joint Nuts and Washers	00000000	00000	00000000	000000
Chrome-Plated Brass
1 1/4"	Slip Joint	Unthreaded	Slip-Joint Nuts and Washers	0000000	00000	0000000	00000
1 1/2"	Slip Joint	Unthreaded	Slip-Joint Nuts and Washers	0000000	00000	0000000	00000

Traps with Outlet Elbow

		Outlet				P-Trap (Wall Mount)
OD	Inlet Connection Type	Pipe Size	Thread Type	Gender	Includes		Each
Chrome-Plated Brass
1 1/4"	Slip Joint	1 1/4	NPT	Female	Slip-Joint Nuts and Washers	000000	000000
1 1/2"	Slip Joint	1 1/2	NPS	Female	Slip-Joint Nuts and Washers	000000	00000

Traps with Cleanout Plug

P-Trap

S-Trap

				P-Trap (Wall Mount)		S-Trap (Floor Mount)
OD	Inlet Connection Type	Outlet Pipe Connection Type	Includes		Each		Each
Chrome-Plated Brass
1 1/4"	Slip Joint	Unthreaded	Slip-Joint Nuts and Washers	0000000	000000	0000000	000000
1 1/2"	Slip Joint	Unthreaded	Slip-Joint Nuts and Washers	0000000	00000	0000000	00000

Traps with Cleanout Plug and Outlet Elbow

		Outlet				P-Trap (Wall Mount)
OD	Inlet Connection Type	Pipe Size	Thread Type	Gender	Includes		Each
Chrome-Plated Brass
1 1/2"	Slip Joint	1 1/2	NPT	Female	Slip-Joint Nuts and Washers	000000	000000