Adjustable Angle Elbows | McMaster-Carr

Filter by

Duct Size

Material

Component

System of Measurement

Fitting Connection

Quick-Disconnect Clamp

Gender

Gauge

Duct Type

Pipe Size

Duct Profile

Length

Finish

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

End Construction

Performance

RoHS

Compliant with Exemptions

Not Compliant

REACH

Compliant

Not Compliant

Export Control Classification Number (ECCN)

2B999

EAR99

DFARS Specialty Metals

Exempt

Pipe Schedule

For Use With

Compressed Air

Chimney Pipe Size

Thread Type

87 Products

Standard Duct and Fittings

Deliver air for a range of HVAC applications, including exhaust and dust collection. Our basic duct, the round shape creates smoother, more efficient airflow than rectangular and oval duct. The male end is slightly smaller than the female, so sections join without clamps or tools.

Adjustable-Angle-Elbow Connectors (Adjusts from Straight to 90°)

Image of Product. Front orientation. Duct and Fittings. Standard Duct and Fittings, Adjustable-Angle-Elbow Connectors (Adjusts from Straight to 90°).

Use these connectors as an angled or straight link between pieces of duct. Adjust the shape by twisting the segments.

Galvanized Steel—Corrosion resistant and affordable, galvanized steel is the most commonly used ductwork material.

Corrosion-Resistant 304 Stainless Steel—The most corrosion-resistant metal duct we sell. It won’t rust or degrade in systems that exhaust chemical fumes or vent heat from industrial ovens and dryers.

Lightweight Aluminum—One-third the weight of steel, aluminum ductwork is easier to handle during installation. Like galvanized steel, it resists rust in wet environments but won’t last as long.

				Galvanized Steel		Corrosion-Resistant 304 Stainless Steel		Lightweight Aluminum
Duct Size	ID	OD	Ga.		Each		Each		Each



	3	3"	2 7/8"	26	1766K31	000000	1767K21	000000	1773K21	00000


	4	4"	3 7/8"	26	1766K32	00000	1767K22	00000	1773K22	0000
	5	5"	4 7/8"	26	1766K33	00000	1767K23	00000	1773K23	00000
	6	6"	5 7/8"	26	1766K34	00000	1767K24	00000	1773K24	00000
	7	7"	6 7/8"	26	1766K35	00000	1767K25	00000	1773K25	00000
	8	8"	7 7/8"	26	1766K36	00000	1767K26	000000	1773K26	00000
	9	9"	8 7/8"	26	1766K37	00000	———	0	———	0
	10	10"	9 7/8"	26	1766K38	00000	1767K27	000000	1773K28	00000
	12	12"	11 7/8"	26	1766K39	00000	1767K28	000000	1773K29	00000
	14	14"	13 7/8"	24	1766K41	00000	———	0	———	0
	16	16"	15 7/8"	24	1766K42	000000	———	0	———	0


	18	18"	17 7/8"	24	1766K43	000000	———	0	———	0
	20	20"	19 7/8"	24	1766K44	000000	———	0	———	0
	24	24"	23 7/8"	24	1766K46	000000	———	0	———	0

Adjustable-Angle-Elbow Connectors (Adjusts from Straight to 45°)

Image of Product. Front orientation. Duct and Fittings. Standard Duct and Fittings, Adjustable-Angle-Elbow Connectors (Adjusts from Straight to 45°).

Use these connectors as an angled or straight link between pieces of duct. Adjust the shape by twisting the segments.

Galvanized Steel—Corrosion resistant and affordable, galvanized steel is the most commonly used ductwork material.

				Galvanized Steel
Duct Size	ID	OD	Ga.		Each



	3	3"	2 7/8"	26	1766K871	000000


	4	4"	3 7/8"	26	1766K872	00000
	5	5"	4 7/8"	26	1766K873	00000
	6	6"	5 7/8"	26	1766K874	00000
	7	7"	6 7/8"	26	1766K875	00000
	8	8"	7 7/8"	26	1766K876	00000
	9	9"	8 7/8"	26	1766K877	00000
	10	10"	9 7/8"	26	1766K878	00000
	12	12"	11 7/8"	26	1766K879	00000
	14	14"	13 7/8"	24	1766K881	00000
	16	16"	15 7/8"	24	1766K882	00000

Ball Joints

Swivel these joints to change the direction of a duct run. They’re commonly used in dust extraction systems to position equipment such as exhaust hoods.

Galvanized Steel—Corrosion resistant and affordable, galvanized steel is the most commonly used ductwork material.

				Galvanized Steel
Duct Size	ID	OD	Ga.		Each



	3	3"	2 7/8"	20	1790K21	0000000


	4	4"	3 7/8"	20	1790K22	000000
	5	5"	4 7/8"	20	1790K23	000000
	6	6"	5 7/8"	20	1790K24	000000
	8	8"	7 7/8"	18	1790K26	000000
	10	10"	9 7/8"	18	1790K28	000000

Gas Chimney Vent Pipe and Fittings

For use with gas-fired equipment, such as boilers and furnaces, these vent pipes and fittings withstand temperatures up to 400° F. Also known as type B gas vents.

To join pipes and connectors, insert a male end into a female end and secure with the included locking band.

Adjustable-Angle Connectors, 45° Elbow to Straight

Image of Product. Front orientation. Chimney Pipe and Fittings. Gas Chimney Vent Pipe and Fittings, Adjustable-Angle Connectors, 45° Elbow to Straight.

Adjustable-angle elbow connectors can be used at an angle or straight.

								Galvanized Steel
	Chimney Pipe Size	Female ID	Male OD	Ga.	Construction	Inner Wall Material	Certification		Each
Female × Male



		7	7"	8"	28	Double Wall	Aluminum	UL Listed	2117K25	000000


		8	8"	9"	28	Double Wall	Aluminum	UL Listed	2117K26	00000

Adjustable-Angle Connectors, 60° Elbow to Straight

Image of Product. Front orientation. Chimney Pipe and Fittings. Gas Chimney Vent Pipe and Fittings, Adjustable-Angle Connectors, 60° Elbow to Straight.

Adjustable-angle elbow connectors can be used at an angle or straight.

								Galvanized Steel
	Chimney Pipe Size	Female ID	Male OD	Ga.	Construction	Inner Wall Material	Certification		Each
Female × Male



		4	4"	4 1/2"	28	Double Wall	Aluminum	UL Listed	2117K27	000000


		5	5"	5 1/2"	28	Double Wall	Aluminum	UL Listed	2117K28	00000
		6	6"	6 1/2"	28	Double Wall	Aluminum	UL Listed	2117K29	00000

Rigid Plastic (PVC) Conduit and Fittings

A nonconductive and lightweight alternative to rigid metal conduit, PVC conduit won’t break down from moisture or chemicals. It protects runs of wiring outdoors, underground, or encased in concrete. PVC cement (not included) is required when joining conduit to fittings with push-in connections.

Adjustable-Angle Conduit or Electrical Box Connectors

Push-In or

Threaded

Connection

Adjust these connectors to any angle from 0° to 90° to link runs or connect conduit to an electrical box. To secure them to knockouts, take off their removable ends to reveal threads.

For 80 Pipe Schedule—With thicker walls than schedule 40, these fittings have better crush resistance to hold up where they may be struck or stepped on.

	Lg.	For Pipe Schedule	Color	Features	Includes	Specs. Met		Each
Push-In Conduit Connection or Threaded Knockout Connection







	PVC

	1/2	NPT	Male	12"	40, 80	Gray	Removable Ends	Two Locknuts	UL Listed	7945K87	000000


	3/4	NPT	Male	13 1/4"	40, 80	Gray	Removable Ends	Two Locknuts	UL Listed	7945K89	00000
	1	NPT	Male	15 3/4"	40, 80	Gray	Removable Ends	Two Locknuts	UL Listed	7945K91	00000

Air-Operated Air Flow Control Valves with Safety Shut-Off

Image of System. Front orientation. CrossSection view. Contains Annotated. Air Flow Control Valves. Air-Operated Air Flow Control Valves with Safety Shut-Off.

Protect air-powered equipment in emergency shut-off situations—when system pressure drops, the air signal stops and these valves automatically close to stop cylinder motion, even at a mid-stroke. They control the speed of air-powered equipment by adjusting the volume of airflow. A pressure-release button allows you to exhaust any trapped air pressure from the system after shut down. Install them in pairs on cylinder exhaust ports, and use tee connectors (not included) to direct exhaust air from the cylinder to the air of the opposite valve, and to connect valves to a directional control valve. The elbow shape allows you to mount them directly to cylinder ports, eliminating additional tubing or piping between the cylinder and valve for better control and consistency than inline valves.

Flow coefficient (Cv) is a measurement that indicates how much airflow can pass through a valve.

Push-to-Connect Female Inlet × NPT Male Outlet × Female Air Pilot

Image of Product. Bottom orientation. Contains Annotated. Air Flow Control Valves. Air-Operated Air Flow Control Valves with Safety Shut-Off, Push-to-Connect Female Inlet × NPT Male Outlet × Female Air Pilot.

Valves with push-to-connect ports are for use with plastic or soft metal tubing. Insert tubing into the port.

One Direction—One direction valves control flow as air exits the cylinder (meter out) and moves from the inlet to the outlet.

			Air Pilot				Flow Rate @ 73 psi, scfm
	For Inlet Tube OD	Outlet Pipe Size	Pipe Size	Thread Size	Thread Type	Flow Coefficient (Cv)	Min.	Max.	Max. Pressure, psi	Temp. Range, ° F	Flow Adjustment Mechanism	Flow Control Location (ISO Designation)	Features		Each
Polybutylene Body—One Direction



		1/4"	1/8	—	10-32	UNF	0.18	0	7.2	145	25 to 140	Dial	Exiting Cylinder (Meter Out)	Pressure-Release Button	2747N111	000000


		1/4"	1/4	1/8	—	NPT	0.18	0	7.2	145	25 to 140	Dial	Exiting Cylinder (Meter Out)	Pressure-Release Button	2747N112	00000
		3/8"	3/8	1/8	—	NPT	0.18	0	7.2	145	25 to 140	Dial	Exiting Cylinder (Meter Out)	Pressure-Release Button	2747N113	00000

Push-to-Connect Female Inlet × BSPP Male Outlet × Push-to-Connect Female Air Pilot

Image of Product. Front orientation. Contains Annotated. Air Flow Control Valves. Air-Operated Air Flow Control Valves with Safety Shut-Off, Push-to-Connect Female Inlet × BSPP Male Outlet × Push-to-Connect Female Air Pilot.

Valves with push-to-connect ports are for use with plastic or soft metal tubing. Insert tubing into the port.

One Direction—One direction valves control flow as air exits the cylinder (meter out) and moves from the inlet to the outlet.

					Flow Rate @ 87 psi, scfm
	For Inlet Tube OD, mm	Outlet Pipe Size	For Air Pilot Tube OD, mm	Flow Coefficient (Cv)	Min.	Max.	Max. Pressure, psi	Temp. Range, ° F	Flow Adjustment Mechanism	Flow Control Location (ISO Designation)	Features		Each
Nylon Body—One Direction



		6	1/4	4	Not Rated	0	16.77	145	25 to 140	Dial	Exiting Cylinder (Meter Out)	Pressure-Release Button	2747N114	0000000


		8	1/8	4	Not Rated	0	8.48	145	25 to 140	Dial	Exiting Cylinder (Meter Out)	Pressure-Release Button	2747N115	000000
		8	3/8	4	Not Rated	0	30.9	145	25 to 140	Dial	Exiting Cylinder (Meter Out)	Pressure-Release Button	2747N116	000000
		10	3/8	4	Not Rated	0	33.2	145	25 to 140	Dial	Exiting Cylinder (Meter Out)	Pressure-Release Button	2747N117	000000

Quick-Disconnect Duct and Fittings

The fastest ductwork to disassemble for dust collection and other frequently cleaned systems. Join sections with quick-release clamps that open and close with a flip of the latch. Since you don’t need screws, welds, or tools, the installation time is half that of other duct types.

Ball Joints

Swivel these joints to change the direction of a duct run. They’re commonly used in dust extraction systems to position equipment such as exhaust hoods.

Galvanized Steel—Corrosion resistant and affordable, galvanized steel is the most commonly used ductwork material.

			Galvanized Steel
Duct Size	ID	Ga.		Each



	4	3 7/8"	20	1761K639	0000000


	5	4 7/8"	20	1761K641	000000
	6	5 7/8"	20	1761K642	000000
	7	6 7/8"	20	1761K643	000000
	8	7 7/8"	18	1761K644	000000
	9	8 7/8"	18	1761K645	000000
	10	9 7/8"	18	1761K647	000000
	12	12"	16	1761K648	000000
	14	13 15/16"	14	1761K649	00000000

Corrosion-Resistant Single-Control Two-Direction Air Flow Control Valves

Made of polybutylene, these plastic valves are more corrosion resistant than valves made of aluminum or nylon. A single dial regulates the speed of airflow in two directions as it enters (meter in) and exits (meter out) equipment, and are often used to control the extension and retraction speed of an air cylinder at the same time. Insert plastic or soft metal tubing into the push-to-connect outlet ports; the outlet ports swivel 360° so you can make a connection from any direction. The elbow shape allows you to mount these valves directly to cylinder ports, eliminating additional tubing between the cylinder and valve for better control and consistency than inline valves.

Flow coefficient (Cv) is a measurement that indicates how much airflow can pass through a valve.

NPT Male Inlet × Push-to-Connect Female Outlet


Meter Out	Meter In

				Flow Rate @ 73 psi, scfm
	Inlet Pipe Size	For Outlet Tube OD	Flow Coefficient (Cv)	Min.	Max.	Max. Pressure, psi	Temp. Range, ° F	Flow Adjustment Mechanism	Flow Control Location (ISO Designation)		Each
Polybutylene Body with Swiveling Outlet Connection



		1/8	1/4"	0.18	0	7	145	25 to 140	Dial	Exiting Cylinder (Meter Out), Entering Cylinder (Meter In)	2814N22	000000


		1/4	1/4"	0.18	0	7	145	25 to 140	Dial	Exiting Cylinder (Meter Out), Entering Cylinder (Meter In)	2814N23	00000
		1/4	3/8"	0.18	0	7	145	25 to 140	Dial	Exiting Cylinder (Meter Out), Entering Cylinder (Meter In)	2814N24	00000

UNF Male Inlet × Push-to-Connect Female Outlet


Meter Out	Meter In

				Flow Rate @ 73 psi, scfm
	Inlet Thread Size	For Outlet Tube OD	Flow Coefficient (Cv)	Min.	Max.	Max. Pressure, psi	Temp. Range, ° F	Flow Adjustment Mechanism	Flow Control Location (ISO Designation)		Each
Polybutylene Body with Swiveling Outlet Connection



		10-32	1/8"	0.07	0	3	145	25 to 140	Dial	Exiting Cylinder (Meter Out), Entering Cylinder (Meter In)	2814N21	000000

Flexible-Mount Air Flow Control Valves

A swiveling outlet port allows you to make a connection from any direction. These valves adjust the volume of air exiting an air cylinder (meter out) to control the speed of air-powered equipment. They control flow in one direction as air moves from the inlet to the outlet. Air flows freely in the opposite direction. The valve body has an elbow shape, which allows you to mount them directly to cylinder ports, eliminating additional tubing between the cylinder and valve for better control and consistency than inline valves. Insert plastic or soft metal tubing into the push-to-connect outlet ports.

Flow coefficient (Cv) is a measurement that indicates how much airflow can pass through a valve. When selecting between valves with the same port size, choose the valve with the higher flow coefficient to ensure it provides enough airflow to operate your system.

NPT Male Inlet × Push-to-Connect Female Outlet


Meter Out

				Flow Rate @ 100 psi
	Inlet Pipe Size	For Outlet Tube OD	Flow Coefficient (Cv)	Min.	Max., scfm	Max. Pressure, psi	Temp. Range, ° F	Flow Adjustment Mechanism	Flow Control Location (ISO Designation)		Each
Nylon Body with Swiveling Outlet Connection



		1/8	1/4"	0.44	Not Rated	21.7	145	35 to 155	Dial	Exiting Cylinder (Meter Out)	2959T11	000000


		1/4	1/4"	0.86	Not Rated	25.7	145	35 to 155	Dial	Exiting Cylinder (Meter Out)	2959T12	00000
		1/4	3/8"	3.56	Not Rated	83.2	145	35 to 155	Dial	Exiting Cylinder (Meter Out)	2959T13	00000
		3/8	3/8"	4.49	Not Rated	104.9	145	35 to 155	Dial	Exiting Cylinder (Meter Out)	2959T14	00000

Liquid-Tight Flexible Plastic (LFNC-B) Conduit and Fittings

Block out moisture and protect wiring abrasion and crushing. This conduit has a tougher construction than LFNC-A, but it’s less resistant to vibration. For use indoors or outdoors, components are made of PVC or nylon to resist chemicals and environmental exposure. Conduit can also be buried or encased in concrete. Pair it with compatible fittings for a liquid-tight seal.

Adjustable-Angle Electrical Box Connectors

Push-In × Threaded

Adjust these connectors to any angle from 0° to 90° to join conduit to an electrical box.

	Conduit Connection		Knockout Connection
	Conduit Trade Size	Gender	Pipe Size	Thread Type	Gender	Color	Includes	Specs. Met		Each
Push-In Conduit Connection × Threaded Knockout Connection







				Nylon

				3/8	Female	1/2	NPT	Male	Gray	Nylon Locknut	CSA Certified, UL Listed	75145K16	00000


				1/2	Female	1/2	NPT	Male	Gray	Zinc-Plated Steel Locknut	C-UL Listed, UL Listed	75145K182	0000
				3/4	Female	3/4	NPT	Male	Gray	Zinc-Plated Steel Locknut	C-UL Listed, UL Listed	75145K192	00000
				1	Female	1	NPT	Male	Gray	Nylon Locknut	CSA Certified, UL Listed	75145K212	00000

Ultra-Flexible Plastic (MPT) Conduit and Fittings

The most flexible conduit we offer. The spiral construction bends, twists, and wraps machine wiring through tight spaces. Pair conduit with compatible fittings to seal out liquid and protect wiring indoors and outdoors. Conduit and fittings are made of PVC or nylon to resist moisture and chemicals.

Adjustable-Angle Electrical Box Connectors

Push-In × Threaded

Adjust these connectors to any angle from 0° to 90° to join conduit to an electrical box.

	Conduit Connection		Knockout Connection
	Conduit Trade Size	Gender	Pipe Size	Thread Type	Gender	Color	Includes	Specs. Met		Each
Push-In Conduit Connection × Threaded Knockout Connection







				Nylon

				3/8	Female	1/2	NPT	Male	Black	Nylon Locknut	CSA Certified, UL Listed	75145K91	00000


				1/2	Female	1/2	NPT	Male	Black	Zinc-Plated Steel Locknut	C-UL Listed, UL Listed	75145K181	0000
				3/4	Female	3/4	NPT	Male	Black	Zinc-Plated Steel Locknut	C-UL Listed, UL Listed	75145K191	00000
				1	Female	1	NPT	Male	Black	Nylon Locknut	CSA Certified, UL Listed	75145K211	00000