Labcocks | McMaster-Carr

	For Use With For Use With

Liquid Carbon Dioxide

	Valve Type Valve Type

Stop Cock

Needle

	Connection Style Connection Style


Threaded	Barbed

	Connection Type Connection Type


Pipe	Tube

	Shape Shape

	Straight
	30° Elbow

	Valve Function Valve Function

On/Off

Flow Adjustment

	Gender Gender

Male

Female

	Maximum Pressure Maximum Pressure

15 psi @ 70° F

150 psi @ 70° F

	For Minimum Tube ID For Minimum Tube ID

3/8"-5/8"

5/8"

	Outlet Connection Type Outlet Connection Type


Hose	Pipe

	Overall Length Overall Length

	DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense Acquisition Regulations Supplement)

DFARS Specialty Metals
COTS-Exempt

	Inlet Gender Inlet Gender

Female

Male

	For Maximum Hose ID For Maximum Hose ID

3/8"

1/2"

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

REACH Compliant

	RoHS (Restriction of Hazardous Substances) RoHS (Restriction of Hazardous Substances)

RoHS Compliant

	Height Height

	Type Type

Adapter

Connector

	Maximum Air Pressure Maximum Air Pressure

125 psi

Not Rated

	Maximum Vacuum Maximum Vacuum

30 in. of Hg

Not Rated

	End-to-End Length End-to-End Length

	Maximum Gas Pressure Maximum Gas Pressure

0.5 psi

125 psi

	Number of Outlets Number of Outlets

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14 Products

About On/Off Valves

On/Off Valves with Barbed Fittings for Chemicals

Barbs grip onto tubing, providing a secure hold. To withstand aggressive and corrosive solutions in chemical-processing applications, these valves have a plastic body and a chemical-resistant seal.

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.

Black PVC Plastic Body with Lever Handle

Barbed × NPT Male

Barbed × Barbed

Valve Type: Stop Cock
For Use With: Air, Carbon Dioxide, Deionized Water, Ethylene Glycol, Isopropyl Alcohol, Mineral Spirits, Natural Gas, Oxygen, Phosphoric Acid, Soap Solutions, Sodium Hydroxide
Seal Material: EPDM Rubber
Seat Material: EPDM Rubber

Barbed × NPT Male
For Tube ID	Pipe Size	Flow Coefficient (Cv)	Max. Pressure	Temperature Range, °F	Port Type	End-to-End Lg.		Each
3/8" to 5/8"	1/4	1.6	15 psi @ 70° F	35° to 120°	Standard	3 1/2"	00000000	000000
Barbed × Barbed
3/8" to 5/8"	__	1.6	15 psi @ 70° F	35° to 120°	Standard	4 3/8"	00000000	00000

Compact Threaded On/Off Valves for Chemicals

For chemical-processing applications in confined areas, these valves have an EPDM seal and a PVC or CPVC body to withstand aggressive and corrosive solutions and a low-profile handle to fit in tight spots.

Standard-port valves slightly restrict flow.

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.

Black PVC Plastic Body

Female × Male with Lever

Female × Female with Lever

Valve Type:
For Lever Valves: Stop Cock
For T-Handle Valves: Ball
For Use With: Ammonia, Carbon Dioxide, Ethylene Glycol, Hydrochloric Acid, Isopropyl Alcohol, Liquid Carbon Dioxide, Phosphoric Acid, Sodium Hydroxide, Water
Seal Material: EPDM Rubber

NPT Female × NPT Male with Lever
Pipe Size	Flow Coefficient (Cv)	Port Type	Max. Pressure	Temperature Range, °F	End-to-End Lg.		Each
1/4	1.6	Standard	150 psi @ 70° F	35° to 120°	2 3/4"	00000000	000000
NPT Female × NPT Female with Lever
1/4	1.6	Standard	150 psi @ 70° F	35° to 120°	2 13/16"	00000000	00000

Laboratory Valves

Styles A and B come with three interchangeable, color-coded identification buttons: orange for air, blue for gas, and yellow for vacuum.

	Valve				Max.			Inlet
Style	Function	Type	Lg.	Ht.	Air Pressure, psi	Vacuum, in. of Hg	Gas Pressure, psi	Pipe Size	Thread Type	Gender	Outlet Hose Connection Type	For Hose ID		Each
For Air and Gas
Chrome-Plated Brass
A	On/Off	Stop Cock	3 7/8"	1 1/2"	125	30	0.5	3/8	NPT	Male	Barbed	1/4"-3/8"	0000000	000000
B	Flow Adjustment	Needle	3 7/8"	2 3/4"	125	Not Rated	125	3/8	NPT	Male	Barbed	1/4"-3/8"	0000000	00000

	Valve					Inlet
Style	Function	Type	Lg.	Ht.	Max. Water Pressure, psi	Pipe Size	Thread Type	Gender	Outlet Hose Connection Type	For Hose ID		Each
For Water
Chrome-Plated Brass
C	Flow Adjustment	Needle	5 3/8"	3 3/8"	125	3/8	NPT	Male	Barbed	1/4"-1/2"	0000000	0000000

Laboratory Nozzles

For Air and Water

For Water

				Max. Pressure		Inlet
For Use With	Shape	Lg.	Ht.	Air	Water, psi	Pipe Size	Thread Type	Gender	Outlet Hose Connection Type	For Hose ID		Each
Chrome-Plated Brass
Air, Water	30° Elbow	2 3/8"	1"	Not Rated	Not Rated	3/8	NPT	Male	Barbed	1/4"-1/2"	0000000	000000
Water	Straight	2 1/2"	1/2"	__	125	3/8	NPT	Male	Barbed	1/4"-1/2"	0000000	00000

Laboratory Flanges and Turrets

Provide a connection for stop cocks, needle valves, and nozzles by attaching these flanges and turrets to your supply pipe.

					Inlet			Outlet
	No. of Outlets	Outlet Angle	Dia.	Ht.	Pipe Size	Thread Type	Gender	Pipe Size	Thread Type	Gender		Each
For Air, Gas, and Water
Chrome-Plated Brass
A	1	__	2"	1 1/8"	3/8	NPT	Female	3/8	NPT	Female	0000000	000000
B	2	__	1 7/8"	1 1/2"	3/8	NPT	Female	3/8	NPT	Female	0000000	00000
C	1	__	2"	2"	3/8	NPT	Female	3/8	NPT	Female	0000000	00000
D	2	90°	2"	2"	3/8	NPT	Female	3/8	NPT	Female	0000000	00000
E	2	180°	2"	2"	3/8	NPT	Female	3/8	NPT	Female	0000000	00000