Zinc Elbows | McMaster-Carr

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48 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.

Matching Flow Diagrams to Replace an Air Directional Control Valve

Choosing an Air Directional Control Valve

About Flow Control Valves

Also known as cylinder speed controls, flow control valves let you control the extension or retraction speed of your air cylinder. They regulate airflow as it passes from the valve's inlet to its outlet. Air flows freely in the opposite direction.

About Conduit

Connectors for Medium-Wall (IMC) and Thick-Wall (Rigid) Steel Conduit

Join pieces of medium-wall (IMC) and thick-wall (rigid) conduit.

NPSM female 90° elbow connectors with removable cover allow for quick access to pull wire and cable.

Offset elbow connectors join knockouts on outlet boxes or enclosures that do not align.

90° Elbow Connectors—Threaded Conduit Connection

With NPSM Threads and Removable Cover

Conduit Connection
Conduit Trade Size	Pipe Size	Thread Type	Gender	Material	Features	Specifications Met		Each
1/2	1/2	NPSM	Female	Zinc	Removable Cover	UL Listed, CSA Certified, ANSI/NEMA FB 1	0000000	000000
3/4	3/4	NPSM	Female	Zinc	Removable Cover	UL Listed, CSA Certified, ANSI/NEMA FB 1	0000000	00000
1	1	NPSM	Female	Zinc	Removable Cover	UL Listed, CSA Certified	0000000	00000
1 1/4	1 1/4	NPSM	Female	Zinc	Removable Cover	UL Listed, CSA Certified	0000000	00000

Offset Elbow Connectors—Threaded Conduit or Electrical Box Connection

Conduit or Electrical Box Connection
Conduit Trade Size	Pipe Size	Thread Type	Gender	Offset Lg.	Material	Specifications Met		Each
1/2	1/2	NPSM	Male	3/4"	Zinc	UL Listed, CSA Certified	0000000	00000
3/4	3/4	NPSM	Male	3/4"	Zinc	UL Listed, CSA Certified	0000000	0000
1	1	NPSM	Male	3/4"	Zinc	UL Listed, CSA Certified	0000000	0000
1 1/4	1 1/4	NPSM	Male	3/4"	Zinc	UL Listed, CSA Certified	0000000	0000
1 1/2	1 1/2	NPSM	Male	3/4"	Zinc	UL Listed, CSA Certified	0000000	0000
2	2	NPSM	Male	3/4"	Zinc	UL Listed, CSA Certified	0000000	00000

Connectors for Thin-Wall (EMT) Steel Conduit

Join pieces of thin-wall (EMT) steel conduit. Screw-clamp ends tighten around conduit with screws.

Screw-clamp 90° elbow with removable cover allows for quick access to pull wire and cable.

90° Elbow Connectors—Zinc

With Removable Cover

Without Removable Cover

Conduit Connection
Conduit Trade Size	Gender	Lg.	Features	Specifications Met		Each
Screw-Clamp Conduit Connection
1/2	Female	1 5/16"	Removable Cover	UL Listed, CSA Certified	0000000	00000
1/2	Female	1 7/8"	__	UL Listed	0000000	00000
3/4	Female	1 3/8"	Removable Cover	UL Listed, CSA Certified	0000000	0000
3/4	Female	2"	__	UL Listed	0000000	00000
1	Female	1 7/8"	Removable Cover	UL Listed, CSA Certified	0000000	00000

Adapters for Thin-Wall (EMT) Steel Conduit

Use these adapters to attach thin-wall (EMT) steel conduit to a knockout in an outlet box or enclosure. A compression end offers a more reliable hold on conduit than a screw-clamp end. It pushes onto the conduit; tighten the compression ring to secure. The screw-clamp end tightens around conduit with a screw.

90° Elbow Adapters—Zinc

Conduit Connection		Electrical Box Connection
Conduit Trade Size	Gender	Pipe Size	Thread Type	Gender	Includes	Specifications Met		Each
Compression Conduit Connection × Threaded Electrical Box Connection
1/2	Female	1/2	NPSM	Male	Locknut	UL Listed, CSA Certified	0000000	00000
3/4	Female	3/4	NPSM	Male	Locknut	UL Listed, CSA Certified	0000000	0000
1	Female	1	NPSM	Male	Locknut	UL Listed, CSA Certified	0000000	0000

Offset Elbow Adapters—Zinc

Conduit Connection		Electrical Box Connection
Conduit Trade Size	Gender	Pipe Size	Thread Type	Gender	Offset Lg.	Includes	Specifications Met		Each
Screw-Clamp Conduit Connection × Threaded Electrical Box Connection
1/2	Female	1/2	NPSM	Male	3/8"	Locknut	UL Listed, CSA Certified	0000000	00000
3/4	Female	3/4	NPSM	Male	3/4"	Locknut	UL Listed, CSA Certified	0000000	0000
1	Female	1	NPSM	Male	1"	Locknut	UL Listed	0000000	00000

Fittings for Liquid-Tight Flexible Metal Conduit

When used to connect liquid-tight flexible metal conduit to a knockout in an outlet box or enclosure, these fittings seal out liquids. Attach the twist-in end to conduit with a few quick turns.

These fittings seal out liquids when connecting liquid-tight flexible metal conduit to a knockout in an outlet box or enclosure.

90° Elbow Adapters

Adapter with Locknut

Conduit Connection			Electrical Box Connection
Conduit Trade Size	Conduit Connection Type	Gender	Pipe Size	Thread Type	Gender	Specifications Met		Each
Adapters with Locknut—Zinc
3/8	Twist-In	Female	1/2	NPT	Male	UL Listed, C-UL Listed	0000000	00000
1/2	Twist-In	Female	1/2	NPT	Male	UL Listed, C-UL Listed	0000000	0000
3/4	Twist-In	Female	3/4	NPT	Male	UL Listed, C-UL Listed	0000000	0000
1	Twist-In	Female	1	NPT	Male	UL Listed, C-UL Listed	0000000	00000
1 1/4	Twist-In	Female	1 1/4	NPT	Male	UL Listed, C-UL Listed	0000000	00000
1 1/2	Twist-In	Female	1 1/2	NPT	Male	UL Listed, C-UL Listed	0000000	00000
2	Twist-In	Female	2	NPT	Male	UL Listed, C-UL Listed	0000000	00000

Adapters for Flexible Metal Conduit

Attach flexible metal conduit to a knockout in an outlet box or enclosure. The screw-clamp end tightens around conduit with a screw.

90° Elbow Adapters—Zinc

Conduit Connection		Electrical Box Connection
Conduit Trade Size	Gender	Pipe Size	Thread Type	Gender	Specifications Met		Each
Screw-Clamp Conduit Connection × Threaded Electrical Box Connection
3/8	Female	1/2	NPSM	Male	UL Listed, C-UL Listed	0000000	00000
1 1/2	Female	1 1/2	NPSM	Male	UL Listed, CSA Certified	0000000	00000
2	Female	2	NPSM	Male	UL Listed, CSA Certified	0000000	00000

Adapters for Flexible Metal Conduit and Armored Cable

Attach flexible metal conduit and types AC and MC armored cable to a knockout in an outlet box or enclosure.

The screw-clamp end tightens around conduit with a screw.

90° Elbow Adapters—Zinc

Conduit Connection		For Armored Cable		Electrical Box Connection
Conduit Trade Size	Gender	OD	Type	Pipe Size	Thread Type	Gender	Includes	Specifications Met		Each
Screw-Clamp Conduit Connection × Threaded Electrical Box Connection
3/8	Female	0.45"-0.62"	MC	1/2	NPSM	Male	Locknut	UL Listed, CSA Certified	0000000	00000
1/2	Female	0.75"-0.87"	MC	1/2	NPSM	Male	Locknut	UL Listed, CSA Certified	0000000	0000
3/4	Female	0.87"-1"	MC	3/4	NPSM	Male	Locknut	UL Listed, CSA Certified	0000000	0000
1	Female	1.18"-1.31"	MC	1	NPSM	Male	Locknut	UL Listed, CSA Certified	0000000	00000
1 1/4	Female	1.5"-1.62"	MC	1 1/4	NPSM	Male	Locknut	UL Listed, CSA Certified	0000000	00000

Elbow Air Flow Control Valves

Threaded Male Inlet × Threaded Female Outlet

Threaded Female
Inlet × Threaded
Male Outlet

Meter out valves control flow as it exits the cylinder. Meter in valves control flow as it enters the cylinder.

BSPP Male Inlet × BSPP Female Outlet

						Flow Rate @ 100 psi
Flow Control Type	ISO Designation	Flow Adjustment Mechanism	Inlet Pipe Size	Outlet Pipe Size	Flow Coefficient (Cv)	Min.	Max.	Max. Pressure, psi	Temp. Range, °F		Each
Zinc Body
Exiting Cylinder	Meter Out	Dial	1/8	1/8	0.34	Not Rated	12.6 scfm	145	15° to 140°	0000000	000000
Exiting Cylinder	Meter Out	Dial	1/4	1/4	0.61	Not Rated	22.6 scfm	145	15° to 140°	0000000	00000

Metric Male Inlet × Metric Female Outlet

			Inlet			Outlet			Flow Rate @ 100 psi
Flow Control Type	ISO Designation	Flow Adjustment Mechanism	Connection Type	Thread Size	Thread Pitch, mm	Thread Size	Thread Pitch, mm	Flow Coefficient (Cv)	Min.	Max.	Max. Pressure, psi	Temp. Range, °F		Each
Zinc Body
Exiting Cylinder	Meter Out	Dial	Threaded	M5	0.8	M5	0.8	0.1	Not Rated	3.5 scfm	145	15° to 140°	0000000	000000

NPT Female Inlet × NPT Male Outlet

						Flow Rate @ 73 psi
Flow Control Type	ISO Designation	Flow Adjustment Mechanism	Inlet Pipe Size	Outlet Pipe Size	Flow Coefficient (Cv)	Min.	Max.	Max. Pressure, psi	Temp. Range, °F		Each
Zinc Body
Entering Cylinder	Meter In	Dial	1/8	1/8	0.39	0 scfm	9.2 scfm	145	32° to 140°	0000000	000000

UNF Female Inlet × UNF Male Outlet

						Flow Rate @ 73 psi
Flow Control Type	ISO Designation	Flow Adjustment Mechanism	Inlet Thread Size	Outlet Thread Size	Flow Coefficient (Cv)	Min.	Max.	Max. Pressure, psi		Each
Zinc Body
Entering Cylinder	Meter In	Dial	10-32	10-32	0.02	0 scfm	4.2 scfm	145	0000000	000000

Elbow Air-Exhaust Control Valves

Threaded Female
Inlet × Threaded
Female Outlet

Repair Kit

The 90° elbow shape allows you to install these valves in tight spaces. They quickly vent exhaust air to the atmosphere or divert it to another place in your system to speed up the movement of air cylinders. Also known as quick exhaust valves.

NPTF (Dryseal) threads are compatible with NPT threads.

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.

Valves
							Overall					Repair Kits
No. of Flow Ports	Inlet Size	Outlet Size	Exhaust Connection Type	Flow Coefficient (Cv)	Pressure Range, psi	Body Material	Lg.	Wd.	Ht.		Each	Includes		Each
Threaded Female Inlet × Threaded Female Outlet
3	3/8 NPTF	3/8 NPTF	Threaded	3.13	30-125	Zinc	1 3/4"	1 7/8"	2 9/16"	0000000	0000000	Diaphragm	00000000	000000

Air-Operated Air On/Off Valves

Also known as blocking valves, these valves are activated by an air signal to turn equipment on and off. They allow airflow when an air signal is applied to the air pilot. When the air supply is removed, the valve closes, trapping air in the system.

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

Push-to-Connect Female Inlet and Air Pilot × Metric Male Outlet

	Outlet				Flow Rate @ 100 psi				Overall
For Inlet Tube OD, mm	Thread Size	Thread Pitch, mm	For Air Pilot Tube OD, mm	Flow Coefficient (Cv)	Min.	Max.	Max. Pressure, psi	Temp. Range, °F	Lg., mm	Wd., mm	Ht., mm		Each
Zinc Body
4	M5	0.8	4	0.203	0 scfm	7.1 scfm	145	15° to 140°	24.9	11	39	00000000	000000

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

		Air Pilot			Flow Rate @ 100 psi				Overall
For Inlet Tube OD, mm	Outlet Pipe Size	Thread Size	Thread Pitch, mm	Flow Coefficient (Cv)	Min.	Max.	Max. Pressure, psi	Temp. Range, °F	Lg., mm	Wd., mm	Ht., mm		Each
Zinc Body
6	1/8	M5	0.8	0.406	0 scfm	14.1 scfm	145	15° to 140°	32.6	13.8	48	00000000	000000

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

				Flow Rate @ 100 psi				Overall
For Inlet Tube OD, mm	Outlet Pipe Size	Air Pilot Pipe Size	Flow Coefficient (Cv)	Min.	Max.	Max. Pressure, psi	Temp. Range, °F	Lg., mm	Wd., mm	Ht., mm		Each
Zinc Body
8	1/4	1/8	0.65	0 scfm	22.6 scfm	145	15° to 140°	39.6	17.8	57.3	00000000	000000

Swivel On/Off Valves with Garden Hose Threads

Swivel On/Off Valve

Flexible Kink Absorber

Valve Type: Ball
For Use With: Water
Temperature Range: 35° to 120° F

Keep fluids flowing—these valves twist and turn to prevent your hose from kinking. They connect to your faucet and swivel 360°, which makes it less likely your hose will kink when you move it side to side. Their lever handle is easy to turn, and lets you know if the valve is open or closed at a glance.

Zinc valves have good corrosion resistance. A plastic coating protects your hands by keeping the valve’s surface from getting too hot or cold.

Brass valves are more durable and corrosion resistant than zinc valves.

Flow coefficient (Cv) is the amount of water (in gallons per minute) at 60° F that will flow through a fully open valve with a difference of 1 psi between the inlet and the outlet.

Add a kink absorber for additional protection to your hose. Connected between the valve and the hose, they prevent kinking from sharp up and down movements.

Valves							Flexible Kink Absorbers
Flow Coefficient (Cv)	Max. Pressure	End-to-End Lg.	Body Finish	Includes		Each		Each
Zinc Body
12.3	100 psi @ 100° F	4 1/2"	Plastic Coated	Washers	00000000	00000	0000000	00000