2 1/2 Ball Valves | McMaster-Carr

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29 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.

About On/Off Valves

About Fire-Fighting Hose Threads

Threaded On/Off Valves

Use these valves in general purpose applications such as those with water, oil, air, and inert gas.

Plated brass valves are more corrosion resistant than plain brass or bronze valves.

316 stainless steel valves have the best corrosion resistance.

Lockable handles can be fixed in place using a padlock (not included).

Short lever handles, lockable oval handles, and T-handles resist accidental movement when snagged or bumped.

Full-port valves do not 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.

Brass Body with Lever Handle—Straight

Female × Female

Valve Type: Ball
For Use With: Air, Argon, Helium, Krypton, Neon, Oil, Steam, Water, Xenon
Seal Material:
NPT Female × NPT Female: Fluorocarbon Rubber
NPT Female × NPT Male: PTFE Plastic
Specifications Met: See table

NPT Female × NPT Female
Pipe Size	Flow Coefficient (Cv)	Max. Pressure	Max. Steam Pressure	Temperature Range, °F	Vacuum Rating, in. of Hg	Port Type	End-to-End Lg.	Specifications Met		Each
2 1/2	596.2	450 psi @ 100° F	150 psi @ 350° F	-40° to 350°	29.9	Full	6 1/8"	CSA Certified, CSA-US Certified	00000000	0000000

Brass Body with Lockable Lever Handle—Straight

Female × Female

Valve Type: Ball
For Use With:
BSPP: Water, Oil, Air, Argon, Helium, Krypton, Neon, Xenon
NPT: Water, Oil, Air, Argon, Helium, Krypton, Neon, Xenon, Steam
Seal Material: PTFE Plastic, except NPT Female × NPT Female are Fluorelastomer Rubber
Specifications Met: See table

NPT Female × NPT Female
Pipe Size	Flow Coefficient (Cv)	Max. Pressure	Max. Steam Pressure	Temperature Range, °F	Vacuum Rating, in. of Hg	Port Type	End-to-End Lg.	For Max. Shackle Dia.	Specifications Met		Each
2 1/2	590	450 psi @ 100° F	150 psi @ 350° F	-40° to 350°	29.9	Full	6 1/8"	9/32"	CSA Certified, CSA-US Certified	0000000	0000000

Brass Body with Lockable Oval Handle—Straight

Female × Female

Valve Type: Ball
For Use With: Air, Steam, Water
Seal Material:
NPT Female × NPT Female: Fluorelastomer Rubber
NPT Female × NPT Male: PTFE Plastic
Specifications Met: See table

NPT Female × NPT Female
Pipe Size	Flow Coefficient (Cv)	Max. Pressure	Max. Steam Pressure	Temperature Range, °F	Vacuum Rating, in. of Hg	Port Type	End-to-End Lg.	For Max. Shackle Dia.	Specifications Met		Each
2 1/2	590	450 psi @ 100° F	150 psi @ 350° F	-40° to 350°	29.9	Full	6 1/8"	5/16"	CSA Certified, CSA-US Certified	0000000	0000000

Chrome-Plated Brass Body with Lever Handle—Straight

Female × Female

Valve Type: Ball
For Use With: Argon, Helium, Krypton, Neon, Oil, Water, Xenon
Seal Material: PTFE Plastic

NPT Female × NPT Female
Pipe Size	Flow Coefficient (Cv)	Max. Pressure	Temperature Range, °F	Vacuum Rating, in. of Hg	Port Type	End-to-End Lg.		Each
2 1/2	629	600 psi @ 210° F	-40° to 365°	29	Full	5 5/8"	00000000	0000000

Chrome-Plated Brass Body with Lockable Lever Handle—Straight

Female × Female

Valve Type: Ball
For Use With: Air, Argon, Helium, Krypton, Neon, Oil, Water, Xenon
Seal Material: PTFE Plastic

NPT Female × NPT Female
Pipe Size	Flow Coefficient (Cv)	Max. Pressure	Temperature Range, °F	Vacuum Rating, in. of Hg	Port Type	End-to-End Lg.	For Max. Shackle Dia.		Each
2 1/2	629	600 psi @ 210° F	-40° to 365°	29	Full	5 5/8"	9/32"	0000000	0000000

Bronze Body with Lever Handle—Straight

Female × Female

Valve Type: Ball
For Use With:
BSPP and BSPT: Air, Argon, Helium, Krypton, Neon, Oil, Steam, Water, Xenon
NPT and UNF: Argon, Helium, Krypton, Neon, Oil, Steam, Water, Xenon
Seal Material: PTFE Plastic

NPT Female × NPT Female
Pipe Size	Flow Coefficient (Cv)	Max. Pressure	Max. Steam Pressure	Temperature Range, °F	Port Type	End-to-End Lg.	Ball Material		Each
2 1/2	503	600 psi @ 100° F	150 psi @ 365° F	-20° to 450°	Full	6"	Brass	0000000	0000000

316 Stainless Steel Body with Lockable Lever Handle—Straight

Female × Female

Valve Type: Ball
For Use With: See table
Seal Material: PTFE Plastic

Valves													Replacement Handles
Pipe Size	Flow Coefficient (Cv)	Max. Pressure	Max. Steam Pressure	Temperature Range, °F	Vacuum Rating, in. of Hg	Port Type	End-to-End Lg.	Handle Material	For Max. Shackle Dia.	For Use With		Each		Each
NPT Female × NPT Female
2 1/2	319	1000 psi @ 200° F	Not Rated	0° to 400°	28.95	Full	6 9/16"	Stainless Steel	1/4"	Water, Oil, Air, Argon, Helium, Krypton, Neon, Xenon	00000000	0000000	00000000	0000000

Easy-Maintenance Threaded On/Off Valves

Maintain and repair these valves without unthreading pipe connections. They have a three-piece bolted body that disassembles inline for access to internal components. All are full port, so they do not restrict flow.

316 stainless steel valves are more corrosion resistant than bronze or steel valves.

Lockable lever handles can be fixed in place using a padlock (not included).

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.

Lever Handle

Exploded View

Valve Type: Ball
For Use With: Argon, Helium, Krypton, Neon, Oil, Steam, Water, Xenon

Bronze Body—PTFE Plastic Seal
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
2 1/2	510	600 psi @ 100° F	150 psi @ 365° F	-20° to 450°	29	7 1/4"	0000000	0000000

Lockable Lever Handle

Assembled View

Exploded View

Valve Type: Ball
For Use With: Air, Argon, Helium, Krypton, Neon, Oil, Steam, Water, Xenon

Valves										Maintenance Kits
Pipe Size	Flow Coefficient (Cv)	Max. Pressure	Max. Steam Pressure	Temperature Range, °F	Vacuum Rating, in. of Hg	End-to-End Lg.	For Max. Shackle Dia.		Each		Each
316 Stainless Steel Body—PTFE Plastic Seal
NPT Female × NPT Female
2 1/2	835	600 psi @ 220° F	150 psi @ 365° F	0° to 450°	Not Rated	6 7/8"	1/4"	00000000	0000000	0000000	0000000

High-Pressure Threaded On/Off Valves

These valves are rated for at least three times the pressure of standard threaded valves.

316 stainless steel valves are more corrosion resistant than steel valves.

Lockable lever handles can be fixed in place using a padlock (not included).

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.

Lockable Lever Handle

Valve Type: Ball
For Use With: See table
Seal Material: PTFE Plastic
Specifications Met: See table

Steel Body
Pipe Size	Flow Coefficient (Cv)	Max. Pressure	Max. Steam Pressure	Temperature Range, °F	Vacuum Rating, in. of Hg	Port Type	End-to-End Lg.	For Max. Shackle Dia.	For Use With		Each
NPT Female × NPT Female
2 1/2	190	800 psi @ 250° F	250 psi @ 405° F	-20° to 450°	29	Standard	6 3/4"	5/16"	Water, Oil, Argon, Helium, Krypton, Neon, Xenon, Steam	00000000	0000000
316 Stainless Steel Body
NPT Female × NPT Female
2 1/2	190	800 psi @ 250° F	150 psi @ 365° F	-20° to 450°	29	Standard	6 3/4"	1/4"	Water, Oil, Argon, Helium, Krypton, Neon, Xenon, Steam	00000000	00000000

Plastic Threaded On/Off Valves

T-handles resist accidental movement when snagged or bumped.

Full-port valves do not 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.

Straight with Lever Handle

Female × Female

Valve Type: Ball
For Use With:
Dark Gray PVC Plastic Body: Water
All Other Valves: Air, Argon, Helium, Krypton, Neon, Water, Xenon
Seal Material:
Dark Gray PVC Plastic Body: EPDM Rubber
All Other Valves: Buna-N Rubber

Pipe Size
Inlet	Outlet	Flow Coefficient (Cv)	Max. Pressure	Temperature Range, °F	Port Type	End-to-End Lg.		Each
Dark Gray PVC Plastic Body
NPT Female × NPT Female
2 1/2	2 1/2	340	150 psi @ 70° F	40° to 140°	Full	7 3/16"	00000000	000000

Flanged On/Off Valves

With Four Bolt Holes

Bolt these valves to ANSI flanges. Their lockable lever handle can be fixed in place using a padlock (not included). These valves have four mounting holes for attaching an actuator.

316 stainless steel valves are more corrosion resistant than cast iron or steel valves.

Full-port valves do not 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.

Cast Iron Body

Valve Type: Ball
For Use With: Air, Oil, Steam, Water
Seal Material: PTFE Plastic
Specifications Met: ASME B16.10, ASME B16.5, MSS-SP-72

			Bolts
Pipe Size	Pressure Class	Flange OD	Circle Dia.	No. of Holes	Hole Size	Included	Flow Coefficient (Cv)	Max. Pressure	Max. Steam Pressure	Temp. Range, °F	End-to-End Lg.	For Max. Shackle Dia.	Actuator Mounting Hole Thread Size		Each
Flanged × Flanged with Full Port
2 1/2	150	7"	5 1/2"	4	3/4"	No	750	200 psi @ 150° F	125 psi @ 215° F	-20° to 350°	7 1/2"	1/4"	M10 × 1.5 mm	0000000	0000000

Steel Body

Valve Type: Ball
For Use With: Air, Argon, Helium, Krypton, Neon, Steam, Water, Xenon
Seal Material: PTFE Plastic
Specifications Met: ASME B16.10, ASME B16.5

			Bolts
Pipe Size	Pressure Class	Flange OD	Circle Dia.	No. of Holes	Hole Size	Included	Flow Coefficient (Cv)	Max. Pressure	Max. Steam Pressure	Temp. Range, °F	Vacuum Rating, in. of Hg	End-to-End Lg.	For Max. Shackle Dia.	Actuator Mounting Hole Thread Size		Each
Flanged × Flanged with Full Port
2 1/2	150	7"	5 1/2"	4	3/4"	No	750	275 psi @ 100° F	100 psi @ 365° F	0° to 500°	28	7 1/2"	5/16"	M10	00000000	0000000

316 Stainless Steel Body

Valve Type: Ball
For Use With:
Full Port: Water, Oil, Air, Argon, Helium, Krypton, Neon, Xenon, Steam
Standard Port: Water, Oil, Air, Argon, Helium, Krypton, Neon, Xenon
Seal Material: PTFE Plastic
Specifications Met:
Full Port: ASME B16.10, ASME B16.5
Standard Port: ASME B16.34

			Bolts
Pipe Size	Pressure Class	Flange OD	Circle Dia.	No. of Holes	Hole Size	Included	Flow Coefficient (Cv)	Max. Pressure	Max. Steam Pressure	Temp. Range, °F	Vacuum Rating, in. of Hg	End-to-End Lg.	For Max. Shackle Dia.	Actuator Mounting Hole Thread Size		Each
Flanged × Flanged with Full Port
2 1/2	150	7"	5 1/2"	4	3/4"	No	750	275 psi @ 100° F	100 psi @ 365° F	0° to 500°	28	7 1/2"	5/16"	M10	00000000	000000000

Compact Flanged On/Off Valves

Valve Type: Ball
For Use With: Air, Argon, Helium, Krypton, Neon, Oil, Steam, Water, Xenon
Seal Material: PTFE Plastic

Also known as wafer ball valves, these combine the slim body of a butterfly valve with the high flow rates of a flanged ball valve. All have a 316 stainless steel body for excellent corrosion resistance. They are full port, so they do not 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.

			Bolts
Pipe Size	Pressure Class	Flange OD	Circle Dia.	No. of Holes	Hole Thread Size	Included	Flow Coefficient (Cv)	Max. Pressure	Max. Steam Pressure	Temperature Range, °F	Vacuum Rating, in. of Hg	End-to-End Lg.	Actuator Mounting Hole Thread Size		Each
316 Stainless Steel Body
Flanged × Flanged
2 1/2	150	7 5/16"	5 11/16"	4	5/8"-11	No	631.4	275 psi @ 100° F	50 psi @ 295° F	0° to 365°	28	4 1/16"	M8	0000000	0000000

Easy-Maintenance Socket-Connect On/Off Valves

Assembled View

Exploded View

Valve Type: Ball
For Use With: Air, Argon, Helium, Krypton, Neon, Oil, Steam, Water, Xenon
Seal Material: PTFE Plastic

Clean and maintain these valves without removing welded connections. Insert unthreaded pipe into the socket ends and weld to create a permanent, leak-tight connection. For easy access to internal components, these valves have a three-piece bolted body that disassembles inline. They have a 316 stainless steel body for excellent corrosion resistance. Fix the lockable lever handle in place using a padlock (not included) with a shackle diameter up to 1/4”. Valves are full port, so they do not 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.

Valves										Maintenance Kits
Pipe Size	For Pipe Schedule	Flow Coefficient (Cv)	Max. Pressure	Max. Steam Pressure	Temperature Range, °F	End-to-End Lg.	For Max. Shackle Dia.		Each		Each
316 Stainless Steel Body
Socket Connect × Socket Connect
2 1/2	Any	835	600 psi @ 220° F	150 psi @ 365° F	0° to 450°	6 7/8"	1/4"	0000000	0000000	0000000	0000000

Easy-to-Install Socket-Connect On/Off Valves for Chemicals

Union fittings on both ends of these valves disassemble for fast installation and removal from your pipeline. Insert unthreaded pipe into the socket ends and bond with primer and cement to create a permanent, leak-tight connection. These valves have a fluoroelastomer seal and a plastic body that can withstand aggressive and corrosive solutions in chemical-processing applications. All have a T-handle that resists accidental movement when snagged or bumped. Valves are full port, so they do not restrict flow.

Lockable T-handles can be fixed in place using a padlock (not included) with a shackle diameter up to 1/4”.

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 with Lockable T-Handle—Socket-Connect Union × Socket-Connect Union

Assembled View

Exploded View

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

Valves											Union Fittings
Pipe Size	For Pipe Schedule	Flow Coefficient (Cv)	Max. Pressure	Temperature Range, °F	Vacuum Rating, in. of Hg	End-to-End Lg.	For Max. Shackle Dia.	For Use With		Each		Pair
2 1/2	40, 80	340	235 psi @ 70° F	40° to 140°	26	10 11/16"	1/4"	Citric Acid, Diesel Fuel, Ethylene Glycol, Hydrochloric Acid, Isopropyl Alcohol, Kerosene, Nitric Acid, Oil, Phosphoric Acid, Salt Water, Sodium Hypochlorite, Sulfuric Acid, Water	00000000	0000000	0000000	000000

Light Gray CPVC Plastic Body with Lockable T-Handle—Socket-Connect Union × Socket-Connect Union

Assembled View

Exploded View

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

Pipe Size	For Pipe Schedule	Flow Coefficient (Cv)	Max. Pressure	Temperature Range, °F	Vacuum Rating, in. of Hg	End-to-End Lg.	For Max. Shackle Dia.	For Use With		Each
2 1/2	40, 80	340	235 psi @ 70° F	40° to 180°	26	10 11/16"	1/4"	Citric Acid, Diesel Fuel, Hydrochloric Acid, Isopropyl Alcohol, Kerosene, Nitric Acid, Oil, Phosphoric Acid, Salt Water, Sodium Hypochlorite, Sulfuric Acid, Water	00000000	0000000

Socket-Connect On/Off Valves for Drinking Water

Valve Type: Ball
For Use With: Drinking Water
Seal Material: EPDM Rubber
Specifications Met: NSF/ANSI 61

Insert unthreaded pipe into the socket ends and bond with primer and cement to create a permanent, leak-tight connection. These valves meet NSF/ANSI 61, which means they’re safe to use with drinking water systems. All have a T-handle that resists accidental movement when snagged or bumped. They are full port, so they do not 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.

PVC Plastic Body
Pipe Size	For Pipe Schedule	Flow Coefficient (Cv)	Max. Pressure	Temperature Range, °F	Vacuum Rating, in. of Hg	End-to-End Lg.	Choose a Color		Each
Socket Connect × Socket Connect
2 1/2	40, 80	1,126	150 psi @ 70° F	40° to 140°	26	7"	Dark Gray, White	0000000	0000000
CPVC Plastic Body
Socket Connect × Socket Connect
2 1/2	40, 80	1,126	150 psi @ 70° F	40° to 200°	26	7"	Light Gray	0000000	000000

Easy-to-Install Socket-Connect On/Off Valves for Drinking Water

Socket-Connect Union ×
Socket-Connect Union with
Lockable T-Handle (Assembled View)

Socket-Connect Union × Socket-Connect Union with Lockable T-Handle (Exploded View)

Valve Type: Ball
For Use With: Drinking Water
Seal Material: EPDM Rubber
Specifications Met: NSF/ANSI 61

Union fittings on the ends of these valves disassemble to cut down on installation and removal time. They meet NSF/ANSI 61 for use with drinking water. Insert unthreaded pipe into the socket ends and bond with primer and cement to create a permanent, leak-tight connection. All valves have a T-handle that resists accidental movement when snagged or bumped. They are full port, so they do not restrict flow. Socket-connect union by socket-connect union valves of pipe sizes 1/2 through 2 come with additional NPT female fittings.

Lockable T-handles can be fixed in place using a padlock (not included) with a shackle diameter up to 1/4".

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.

Valves										Union Fittings
Pipe Size	For Pipe Schedule	Flow Coefficient (Cv)	Max. Pressure	Temperature Range, °F	Vacuum Rating, in. of Hg	End-to-End Lg.	For Max. Shackle Dia.		Each		Pair
Dark Gray PVC Plastic
Socket Connect × Socket-Connect Union with Lockable T-Handle
2 1/2	40, 80	340	235 psi @ 70° F	40° to 140°	26	10 11/16"	1/4"	00000000	0000000	0000000	000000
Light Gray CPVC Plastic
Socket-Connect Union × Socket-Connect Union with Lockable T-Handle
2 1/2	40, 80	340	235 psi @ 70° F	40° to 180°	26	10 9/16"	1/4"	00000000	000000	0000000	00000

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
2 1/2	65	400 psi @ 250° F	0° to 250°	6"	0000000	0000000

Diverting Valves with Fire-Fighting Hose Fittings

Valve Type: Ball
For Use With: Water
Seal Material: Buna-N Rubber

Control the flow of water in two directions from a single source—these diverting valves have two balls and handles for independent operation of each outlet. They can direct flow to one side outlet at full capacity while shutting off flow to the second side outlet, direct flow to both side outlets at reduced capacity, or shut off flow to both side outlets. Valves have a brass body for good corrosion resistance. They are for use with fire-fighting hose.

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.

Male NPSH (National Pipe Straight Hose) threads are compatible with female NPSH threads. Female NPSH threads are compatible with male NPSH, NPT, NPTF, and NPSM threads.

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

NPSH Female × NPSH Male × NPSH Male

Brass Body
Inlet Pipe Size	Outlet Pipe Sizes	Flow Pattern	Flow Coefficient (Cv)	Max. Pressure	Temp. Range, °F	End-to-End Lg.		Each
2 1/2	1 1/2 × 1 1/2	Y-Pattern	Not Rated	300 psi @ 150° F	-20° to 150°	5 5/8"	000000	0000000