Gated Wyes | McMaster-Carr

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Diverting Valve Flow Pattern

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6 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 Actuated On/Off Valves

About On/Off Valves

About Fire-Fighting Hose Threads

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.

NH/NST (National Hose/National Standard) threads are only compatible with other NH/NST threads. 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.

NH/NST Female × NH/NST Male × NH/NST Male

Brass Body
Inlet Fire Hose Trade Size	Outlet Fire Hose Trade 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

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

Dual Shut-Off Threaded Diverting Valves


Female x Male x Male	Female x Female x Female
Female x Male x Male

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

Control flow in two directions from a single source—these valves have two handles for independent operation of each outlet. They can direct flow from the center-port inlet to one side-port outlet at full capacity, direct flow to both side-port outlets simultaneously at reduced capacity, or shut off flow to both outlet ports completely. Valves are standard port, so they slightly restrict flow.

Brass Body
Inlet Pipe Size	Outlet Pipe Sizes	Flow Pattern	Max. Pressure	Temp. Range, °F	Vacuum Rating, in. of Hg	End-to-End Lg.		Each
NPT Female × NPT Male × NPT Male
1	3/4 × 3/4	Y-Pattern	600 psi @ 200° F	-40° to 365°	29	3 1/4"	0000000	000000
Bronze Body
NPT Female × NPT Female × NPT Female
1	3/4 × 3/4	Y-Pattern	550 psi @ 150° F	Not Rated	29	3 7/16"	0000000	000000
1 1/4	3/4 × 3/4	Y-Pattern	550 psi @ 150° F	Not Rated	29	3 7/16"	0000000	000000

Threaded Solenoid Diverting Valves

For Use With: Air, Argon, Helium, Krypton, Neon, Oil, Water, Xenon
Seal Material: Buna-N Rubber

These valves operate on electricity to automatically divert flow between ports. All can direct flow from the center-port inlet to either side-port outlet. Valves cannot shut off flow. They require a minimum pressure drop between the inlet and outlet for operation; the upstream pressure must be 10 psi greater than the downstream pressure. The actuator is directly mounted to the valve body to minimize movement and reduce wear.