30° Elbow Valves | McMaster-Carr

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63 Products

About On/Off Valves

About Gas Regulators

Snap-Shut Threaded On/Off Valves

For applications that require intermittent operation, such as spraying and washing, push or pull the lever on these valves to start flow. They spring closed when the lever is released.

Brass valves are stronger and less brittle than zinc valves for use in higher-pressure applications.Valves with a TFE plastic seat are more durable than those with a Viton® fluoroelastomer rubber seat.

Replace worn components on 30° elbow valves with a repair kit (sold separately).

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.

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

Brass Body with Pull Activated Lever—30° Elbow

30° Elbow Brass with Pull Activated Lever

Valve Type: Stem
For Use With: Air, Argon, Helium, Inert Gas, Krypton, Neon, Oil, Water, Xenon
Seal Material: Buna-N Rubber
Seat Material: TFE Plastic

Valves							Repair Kits
Pipe Size	Flow Coefficient (Cv)	Max. Pressure	Temperature Range, °F	End-to-End Lg.		Each		Each
NPT Female × NPT Female
1/4	Not Rated	1200 psi @ 70° F	-40° to 225°	2"	0000000	000000	0000000	00000

Tank-Mount Pressure-Regulating Valves for Air and Inert Gas

For Use With: See Table
Temperature Range: -20° to 120° F

These valves automatically reduce a high inlet pressure from compressed gas tanks to a lower, stable outlet pressure. All have Compressed Gas Association (CGA) numbered inlet fittings for secure connections to compressed gas tanks. Choose a valve with the same CGA number as your tank and other system components. Valves have a gauge to monitor outlet pressure and a gauge to monitor inlet pressure from the tank.

Choose a valve with a maximum outlet pressure that’s approximately twice your application’s normal operating pressure. Your operating pressure should never exceed 75% of the valve’s maximum outlet pressure.

Single-stage valves reduce pressure in one step, which causes the outlet pressure to fluctuate slightly as you empty the tank. They’re best for applications where a constant outlet pressure isn’t critical.

Two-stage valves progressively reduce pressure over two steps for more consistent outlet pressure at all times. They’re often used in applications that require a constant outlet pressure regardless of the tank level.

Valves with a brass body have a longer service life than valves with a brass and steel body.

Valves with a stainless steel diaphragm can withstand harsh environments.

Valves with flared tube outlet fittings form a tight seal on metal tubing.

Single-Stage Valves

Flared Outlet × Male Inlet Single-Stage Valve With T-Handle

Female Outlet × Male Inlet Single-Stage Valve With T-Handle

Male Outlet × Male Inlet Single-Stage Valve With T-Handle

Male Outlet × Male Inlet Single-Stage Valve With Knob

Female Oulet × Female Inlet Single-Stage Valve With Knob

Male Outlet × Female Inlet Single-Stage Valve With T-Handle

Male Outlet × Female Inlet Single-Stage Valve With Knob

Inlet				Outlet				Material
CGA Number	Location	Thread Direction	Pressure Gauge Range, psi	Location	Thread Direction	Pressure Range, psi	Pressure Adjustment Method	Body	Seal	Diaphragm		Each
For Use With Argon, Helium, and Nitrogen
37° Flared UNF Male Outlet × NGO Male Inlet
CGA 580	Side	Right Hand	0 to 4,000	Side	Right Hand	10 to 200	__	Brass	Polyurethane	Neoprene/Nylon	00000000	0000000
45° Flared UN/UNF (SAE 45°) Male Outlet × NGO Male Inlet
CGA 580	Side	Right Hand	0 to 4,000	Side	Right Hand	0 to 250	T-Handle	Brass	PTFE	Neoprene	00000000	000000
CGA 580	Side	Right Hand	0 to 4,000	Side	Right Hand	0 to 500	T-Handle	Brass	PTFE	Neoprene	00000000	000000
5/8"-18 UNF Female Outlet × NGO Male Inlet
CGA 580	Side	Right Hand	0 to 4,000	Side	Right Hand	0 to 125	T-Handle	Brass	PTFE	Stainless Steel	00000000	000000
9/16"-18 UNF Male Outlet × NGO Male Inlet
CGA 580	Side	Right Hand	0 to 4,000	Side	Right Hand	0 to 50	T-Handle	Brass	PTFE	Neoprene	00000000	000000
CGA 580	Side	Right Hand	0 to 4,000	Side	Right Hand	0 to 125	T-Handle	Brass	PTFE	Rubber	0000000	000000
CGA 580	Side	Right Hand	0 to 4,000	Side	Right Hand	0 to 145	Knob	Brass/Steel	PTFE	Rubber	0000000	000000
CGA 580	Side	Right Hand	0 to 4,000	Side	Right Hand	0 to 200	T-Handle	Brass	PTFE	Rubber	0000000	000000
For Use With Carbon Dioxide
5/8"-18 UNF Female Outlet × NGO Female Inlet
CGA 320	Side	Right Hand	0 to 4,000	Side	Right Hand	0 to 145	Knob	Brass	PTFE	Neoprene	00000000	000000
9/16"-18 UNF Male Outlet × NGO Female Inlet
CGA 320	Side	Right Hand	0 to 4,000	Side	Right Hand	0 to 125	T-Handle	Brass	PTFE	Rubber	0000000	000000
For Use With Oxygen
9/16"-18 UNF Male Outlet × NGO Female Inlet
CGA 540	Side	Right Hand	0 to 4,000	Side	Left Hand	0 to 50	Knob	Brass	PTFE	Neoprene	00000000	000000
CGA 540	Side	Right Hand	0 to 4,000	Side	Right Hand	0 to 50	T-Handle	Brass	PTFE	Neoprene	00000000	000000
CGA 540	Side	Right Hand	0 to 4,000	Side	Right Hand	0 to 50	T-Handle	Brass	PTFE	Stainless Steel	00000000	000000
CGA 540	Side	Right Hand	0 to 4,000	Side	Right Hand	0 to 125	T-Handle	Brass	PTFE	Rubber	0000000	000000
CGA 540	Side	Right Hand	0 to 4,000	Side	Right Hand	0 to 125	T-Handle	Brass	PTFE	Stainless Steel	0000000	000000
CGA 540	Side	Right Hand	0 to 4,000	Side	Right Hand	0 to 145	Knob	Brass/Steel	PTFE	Rubber	0000000	000000
CGA 540	Side	Right Hand	0 to 4,000	Side	Right Hand	0 to 200	T-Handle	Brass	PTFE	Rubber	000000	000000
CGA 540	Side	Right Hand	0 to 4,000	Side	Right Hand	0 to 200	T-Handle	Brass	PTFE	Stainless Steel	00000000	000000
For Use With Air
1/4 NPT Male Outlet × NGO Male Inlet
CGA 590	Side	Left Hand	0 to 4,000	Side	Right Hand	0 to 125	T-Handle	Brass	PTFE	Rubber	0000000	000000
9/16"-18 UNF Male Outlet × NGO Male Inlet
CGA 590	Side	Left Hand	0 to 4,000	Side	Left Hand	0 to 145	Knob	Brass/Steel	PTFE	Rubber	0000000	000000
For Use With Breathable Air
9/16"-18 UNF Male Outlet × NGO Female Inlet
CGA 346	Side	Right Hand	0 to 4,000	Side	Right Hand	0 to 125	T-Handle	Brass	PTFE	Rubber	0000000	000000
CGA 346	Side	Right Hand	0 to 4,000	Side	Right Hand	0 to 200	T-Handle	Brass	PTFE	Rubber	0000000	000000

Two-Stage Valves

Female Outlet × Male Inlet Two-Stage Valve With T-Handle

Female Outlet × Female Inlet Two-Stage Valve With T-Handle

Male Outlet × Female Inlet Two-Stage Valve With T-Handle

Male Outlet × Male Inlet Two-Stage Valve With T-Handle

Inlet				Outlet				Material
CGA Number	Location	Thread Direction	Pressure Gauge Range, psi	Location	Thread Direction	Pressure Range, psi	Pressure Adjustment Method	Body	Seal	Diaphragm		Each
For Use With Argon, Helium, and Nitrogen
1/4 NPT Female Outlet × NGO Male Inlet
CGA 580	Side	Right Hand	0 to 4,000	Side	Right Hand	0 to 250	T-Handle	Brass	PTFE	Neoprene	00000000	0000000
CGA 580	Side	Right Hand	0 to 4,000	Side	Right Hand	0 to 250	T-Handle	Brass	PTFE	Stainless Steel	00000000	000000
5/8"-18 UNF Female Outlet × NGO Male Inlet
CGA 580	Side	Right Hand	0 to 4,000	Side	Right Hand	0 to 50	T-Handle	Brass	PTFE	Neoprene	00000000	000000
CGA 580	Side	Right Hand	0 to 4,000	Side	Right Hand	0 to 50	T-Handle	Brass	PTFE	Stainless Steel	0000000	000000
CGA 580	Side	Right Hand	0 to 4,000	Side	Right Hand	0 to 125	T-Handle	Brass	PTFE	Stainless Steel	0000000	000000
CGA 580	Side	Right Hand	0 to 4,000	Side	Right Hand	0 to 125	T-Handle	Brass/Steel	PTFE	Rubber	0000000	000000
For Use With Carbon Dioxide
1/4 NPT Female Outlet × NGO Female Inlet
CGA 320	Side	Right Hand	0 to 4,000	Side	Right Hand	0 to 250	T-Handle	Brass	PTFE	Neoprene	00000000	000000
CGA 320	Side	Right Hand	0 to 4,000	Side	Right Hand	0 to 250	T-Handle	Brass	PTFE	Stainless Steel	00000000	000000
5/8"-18 UNF Female Outlet × NGO Female Inlet
CGA 320	Side	Right Hand	0 to 4,000	Side	Right Hand	0 to 125	T-Handle	Brass	PTFE	Stainless Steel	00000000	000000
CGA 320	Side	Right Hand	0 to 4,000	Side	Right Hand	0 to 125	T-Handle	Brass/Steel	PTFE	Rubber	0000000	000000
For Use With Oxygen
1/4 NPT Female Outlet × NGO Female Inlet
CGA 540	Side	Right Hand	0 to 4,000	Side	Right Hand	0 to 250	T-Handle	Brass	PTFE	Neoprene	0000000	000000
CGA 540	Side	Right Hand	0 to 4,000	Side	Right Hand	0 to 250	T-Handle	Brass	PTFE	Stainless Steel	0000000	000000
9/16"-18 UNF Male Outlet × NGO Female Inlet
CGA 540	Side	Right Hand	0 to 4,000	Side	Right Hand	0 to 50	T-Handle	Brass	PTFE	Neoprene	00000000	000000
CGA 540	Side	Right Hand	0 to 4,000	Side	Right Hand	0 to 50	T-Handle	Brass	PTFE	Stainless Steel	00000000	000000
CGA 540	Side	Right Hand	0 to 4,000	Side	Right Hand	0 to 125	T-Handle	Brass	PTFE	Stainless Steel	0000000	000000
CGA 540	Side	Right Hand	0 to 4,000	Side	Right Hand	0 to 125	T-Handle	Brass/Steel	PTFE	Rubber	000000	000000
For Use With Air
1/4 NPT Male Outlet × NGO Male Inlet
CGA 590	Side	Left Hand	0 to 4,000	Side	Right Hand	0 to 125	T-Handle	Brass	PTFE	Stainless Steel	00000000	000000
CGA 590	Side	Left Hand	0 to 4,000	Side	Right Hand	0 to 250	T-Handle	Brass	PTFE	Stainless Steel	00000000	000000
For Use With Breathable Air
1/4 NPT Female Outlet × NGO Female Inlet
CGA 346	Side	Right Hand	0 to 4,000	Side	Right Hand	0 to 250	T-Handle	Brass	PTFE	Stainless Steel	00000000	000000

Tank-Mount Pressure-Regulating Valves with Flowmeter for Inert Gas

For Use With: See Table
Temperature Range: -20° to 120° F

Commonly used in TIG welding where gas flow/coverage is a concern, these valves measure the gas flow rate in addition to regulating pressure. They automatically reduce a high inlet pressure from compressed gas tanks to a lower, stable outlet pressure. All have Compressed Gas Association (CGA) numbered inlet fittings for secure connections to compressed gas tanks. Choose a valve with the same CGA number as your tank and other system components. Valves have a gauge to monitor the outlet flow rate and a second gauge to monitor inlet pressure from the tank. They are single stage and reduce pressure in one step, which causes the outlet pressure to fluctuate slightly as you empty the tank.

For Use With Argon

Female Outlet × Male Inlet

Female Outlet × Male Inlet With Hose

Inlet					Outlet					Material
CGA Number	Location	Thread Direction	Pressure Gauge Range, psi	Stage	Thread Size	Location	Thread Direction	Flow Range, scfh	Flow Gauge Included	Body	Seal	Diaphragm	Includes		Each
UNF Female Outlet × NGO Male Inlet
CGA 580	Side	Right Hand	0 to 4,000	Single	5/8"-18	Side	Right Hand	0 to 60	Yes	Brass	PTFE	Neoprene	__	0000000	0000000
CGA 580	Side	Right Hand	0 to 4,000	Single	5/8"-18	Side	Right Hand	0 to 60	Yes	Brass	PTFE	Neoprene	10-ft. long, 3/16" dia. hose with 5/8"-18 male fittings on both ends	0000000	000000
CGA 580	Side	Right Hand	0 to 4,000	Single	5/8"-18	Side	Right Hand	0 to 100	Yes	Brass	PTFE	Neoprene	__	0000000	000000

For Use With Carbon Dioxide

Female Outlet × Female Inlet

Female Outlet × Female Inlet With Hose

Inlet					Outlet					Material
CGA Number	Location	Thread Direction	Pressure Gauge Range, psi	Stage	Thread Size	Location	Thread Direction	Flow Range, scfh	Flow Gauge Included	Body	Seal	Diaphragm	Includes		Each
UNF Female Outlet × NGO Female Inlet
CGA 320	Side	Right Hand	0 to 4,000	Single	5/8"-18	Side	Right Hand	0 to 60	Yes	Brass	PTFE	Neoprene	__	0000000	0000000
CGA 320	Side	Right Hand	0 to 4,000	Single	5/8"-18	Side	Right Hand	0 to 60	Yes	Brass	PTFE	Neoprene	10-ft. long, 3/16" dia. hose with 5/8"-18 male fittings on both ends	0000000	000000
CGA 320	Side	Right Hand	0 to 4,000	Single	5/8"-18	Side	Right Hand	0 to 100	Yes	Brass	PTFE	Neoprene	__	0000000	000000

Tank-Mount Pressure-Regulating Valves for Fuel Gases

For Use With: See Table
Temperature Range: -20° to 120° F

Attach these valves to acetylene, hydrogen, methane, propane, or propylene tanks to reduce a high inlet pressure to a lower, stable outlet pressure. They have Compressed Gas Association (CGA) numbered inlet fittings for secure connections to compressed gas tanks. Choose a valve with the same CGA number as your tank and other system components. Valves come with a gauge to monitor outlet pressure and a gauge to monitor inlet pressure from the tank.