Flow Indicating Valves | McMaster-Carr

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	Pipe Size Pipe Size

	Thread Type Thread Type

NPT

	For Use With For Use With

	Connection Style Connection Style

	Threaded
	Threaded Union
	Solder Connect

	Shape Shape

	Straight

	Handle Style Handle Style

Dial

Lever

T-Handle

	Body Material Body Material

Brass

Bronze

Plastic

	Ball Material Ball Material

Brass

Stainless Steel

Plastic

	Handle Type Handle Type	Show

Flow Indicating

	Handle Type Handle Type	Hide

Lockable with Ratchet
Opening

Standard with Ratchet
Opening

Toggle

	Valve Function Valve Function

Flow Adjustment

On/Off

	Valve Type Valve Type

Ball

Butterfly

	Connection Type Connection Type


Pipe	Tube

	Gender Gender

Female

	Flow Coefficient (Cv) Flow Coefficient (Cv)

1.4
1.52
1.75
2.75
3.4
4.5
5.75
7.7
7.8
10
12.5
13
16.8
19.9
25
34.8
40
43
52.2
65
85
112
174
180
255.2

	Maximum Pressure Maximum Pressure

	Port Type Port Type


Full	Standard

	Type Type

Connector

	Maximum Temperature Maximum Temperature

100° to 249.9° F

250° to 499.9° F

	System of Measurement System of Measurement

Inch

	Overall Length Overall Length

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

	Valve Operation Valve Operation

Handle

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

RoHS Compliant

RoHS Compliant with
Exemptions

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

REACH Compliant

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35 Products

About On/Off Valves

Valve Type: Ball
For Use With: Argon, Helium, Krypton, Neon, Oil, Steam, Water, Xenon
Seal Material: Fluoroelastomer Rubber
Specifications Met: CSA Certified, CSA-US Certified, FM Approved, UL Listed

An easy-to-read flow-indicating handle shows the percentage the valve is open. These valves are full port, so they do not restrict flow. UL Listed for use with liquefied-petroleum gas, they meet U.S. safety standards.

Nickel-plated brass valves are more corrosion resistant than plain brass 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.

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

Brass Body
Pipe Size	Flow Coefficient (Cv)	Max. Pressure	Max. Steam Pressure	Temperature Range, °F	Vacuum Rating, in. of Hg	End-to-End Lg.		Each
NPT Female × NPT Female
1/4	7.7	600 psi @ 320° F	150 psi @ 365° F	-40° to 365°	29.89	1 13/16"	0000000	000000
3/8	7.8	600 psi @ 320° F	150 psi @ 365° F	-40° to 365°	29.89	1 7/8"	0000000	00000
1/2	16.8	600 psi @ 235° F	150 psi @ 365° F	-40° to 365°	29.89	2 1/2"	0000000	00000
3/4	34.8	600 psi @ 235° F	150 psi @ 365° F	-40° to 365°	29.89	2 3/4"	0000000	00000
1	52.2	500 psi @ 275° F	150 psi @ 365° F	-40° to 365°	29.89	3 5/16"	0000000	00000
1 1/2	174	500 psi @ 275° F	150 psi @ 365° F	-40° to 365°	29.89	4 3/16"	0000000	000000
2	255.2	500 psi @ 275° F	150 psi @ 365° F	-40° to 365°	29.89	5"	0000000	000000
Nickel-Plated Brass Body
NPT Female × NPT Female
1/4	7.7	600 psi @ 235° F	150 psi @ 365° F	-40° to 365°	29.89	1 13/16"	0000000	00000
3/8	7.8	600 psi @ 235° F	150 psi @ 365° F	-40° to 365°	29.89	1 7/8"	0000000	00000
1/2	16.8	600 psi @ 235° F	150 psi @ 365° F	-40° to 365°	29.89	2 1/2"	0000000	00000
3/4	34.8	600 psi @ 235° F	150 psi @ 365° F	-40° to 365°	29.89	2 3/4"	0000000	00000
1	52.2	500 psi @ 275° F	150 psi @ 365° F	-40° to 365°	29.89	3 5/16"	0000000	00000
1 1/2	174	500 psi @ 275° F	150 psi @ 365° F	-40° to 365°	29.89	4 3/16"	0000000	000000
2	255.2	500 psi @ 275° F	150 psi @ 365° F	-40° to 365°	29.89	5"	0000000	000000

Easy-to-Install Plastic Threaded On/Off Valves

For fast installation and removal from pipelines, these valves have union fittings that disassemble into multiple pieces.

Flow-indicating T-handles show the percentage the valve is open.

Standard-port valves slightly restrict flow.

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

Threaded Union × Threaded Union with Flow-Indicating T-Handle

Assembled View

Exploded View

Valve Type: Ball
For Use With: Water
Seal Material: EPDM Rubber

Dark Gray PVC Plastic Body
Pipe Size	Max. Pressure	Temperature Range, °F	Port Type	End-to-End Lg.		Each
NPT Female × NPT Female
1/2	150 psi @ 65° F	35° to 140°	Standard	4 1/8"	000000	0000000

Easy-to-Install Threaded On/Off Valves for Chemicals

For fast installation and removal from pipelines, these valves have union fittings that disassemble into multiple pieces. All have a fluoroelastomer seal and a plastic body that can stand up to aggressive and corrosive solutions in chemical-processing applications.

Flow-indicating T-handles show the percentage the valve is open.

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.

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

Dark Gray PVC Plastic Body—NPT Female × NPT Female

Threaded Union × Threaded Union with Flow-Indicating T-Handle (Assembled View)

Threaded Union × Threaded Union with Flow-Indicating T-Handle (Exploded View)

Valve Type: Ball
For Use With: See table
Ball Material: PVC Plastic
Seal Material: Fluoroelastomer Rubber
Seat Material: PTFE Plastic

Threaded Union × Threaded Union with Flow-Indicating T-Handle
Pipe Size	Max. Pressure	Temperature Range, °F	Port Type	End-to-End Lg.	For Use With		Each
1/2	150 psi @ 65° F	35° to 140°	Standard	4 1/8"	Ammonia, Butane, Carbon Dioxide, Citric Acid, Hydrochloric Acid, Methanol, Nitric Acid, Nitrogen, Oxygen, Phosphoric Acid, Salt Water, Sodium Hydroxide, Water	000000	0000000

Threaded Flow-Adjustment Valves

Straight with Flow-Indicating Lever Handle

These valves gradually open and close to adjust and regulate flow.

Flow-indicating lever handles show the proportion the valve is open.

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.

Bronze Body—Pressure Class Not Rated

Valve Type: Butterfly
For Use With: Water, Oil, Air, Argon, Helium, Krypton, Neon, Xenon
Specifications Met: CSA Certified, CSA-US Certified, UL Listed

					Flow-Indicating Lever Handle
Pipe Size	Flow Coefficient (Cv)	Max. Pressure	Temperature Range, °F	End-to-End Lg.		Each
NPT Female × NPT Female—Straight
1/4	4.5	175 psi @ 100° F	-20° to 275°	2 1/4"	0000000	000000
3/8	10	175 psi @ 100° F	-20° to 275°	2 3/8"	0000000	00000
1/2	13	175 psi @ 100° F	-20° to 275°	1 15/16"	0000000	00000
3/4	25	175 psi @ 100° F	-20° to 275°	2 1/16"	0000000	00000
1	43	175 psi @ 100° F	-20° to 275°	2 5/16"	0000000	00000
1 1/4	85	175 psi @ 100° F	-20° to 275°	2 5/8"	0000000	00000
1 1/2	112	175 psi @ 100° F	-20° to 275°	2 7/8"	0000000	000000
2	180	175 psi @ 100° F	-20° to 275°	3 1/4"	0000000	000000

Threaded Balancing Valves

Valve Type: Ball
For Use With: Water
Seal Material: EPDM Rubber
Specifications Met: CSA Certified

Thread these balancing valves onto pipe—they help you measure the pressure differential across the valve as well as change the flow rate to components in your system. Sometimes called circuit setters, they’re used in HVAC systems and other systems that require even flow distribution. To see what percentage they’re open, there’s an arrow on these valves that’s connected to their measuring plate. Readout ports on both sides let you attach flow measurement tools, such as pressure gauges and probes, which help you track how much the valves reduce flow. Open these valves to a saved percentage by using their memory shutoff function.

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
Pipe Size	Flow Coefficient (Cv)	Maximum Pressure	Temperature Range, °F	End-to-End Length		Each
NPT Female × NPT Female
1/2	1.52	400 psi @ 250° F	0° to 250°	3"	0000000	0000000
3/4	2.75	400 psi @ 250° F	0° to 250°	3 1/16"	0000000	000000
1	5.75	400 psi @ 250° F	0° to 250°	3 13/16"	0000000	000000
1 1/4	12.5	400 psi @ 250° F	0° to 250°	4 7/16"	0000000	000000
1 1/2	19.9	400 psi @ 250° F	0° to 250°	4 7/16"	0000000	000000
2	40	400 psi @ 250° F	0° to 250°	5 3/16"	0000000	000000
2 1/2	65	400 psi @ 250° F	0° to 250°	6"	0000000	00000000
3	112	400 psi @ 250° F	0° to 250°	6 1/2"	0000000	00000000

Solder-Connect Balancing Valves

Valve Type: Ball
For Use With: Water
Seal Material: EPDM Rubber
Specifications Met: CSA Certified

Attach these balancing valves using solder—they help you measure the difference in pressure across the valve and adjust the flow rate to system components. Also known as circuit setters, they’re often used in systems that need an even distribution of flow, such as HVAC systems. To check what percentage they’re open, there’s an arrow on these valves that’s connected to their measuring plate. There are readout ports on both sides for connecting flow measurement tools, such as pressure gauges and probes, which help you track how much the valves reduce flow. Use the memory shutoff function to open them to a saved setting.

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
For Tube OD	Flow Coefficient (Cv)	Maximum Pressure	Temperature Range, °F	End-to-End Length	Stem Type		Each
Solder Connect × Solder Connect
1/2"	1.75	200 psi @ 250° F, 250 psi @ 225° F, 300 psi @ 200° F	0° to 250°	2 15/16"	Nonrising	0000000	0000000
3/4"	3.4	200 psi @ 250° F, 250 psi @ 225° F, 300 psi @ 200° F	0° to 250°	3 9/16"	Nonrising	0000000	000000
1"	5.75	200 psi @ 250° F, 250 psi @ 225° F, 300 psi @ 200° F	0° to 250°	4 5/16"	Nonrising	0000000	000000

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About On/Off Valves

Flow-Indicating Threaded On/Off Valves

Easy-to-Install Plastic Threaded On/Off Valves

Easy-to-Install Threaded On/Off Valves for Chemicals

Threaded Flow-Adjustment Valves

Threaded Balancing Valves

Solder-Connect Balancing Valves