NH/NST Valves | McMaster-Carr

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27 Products

Threaded Flow-Adjustment Valves with Fire-Fighting Hose Fittings

Connect these valves to fire hydrants, fire pumps, and fire hoses to adjust the flow of water. Ideal for fighting fires, their internal gate allows unrestricted flow when fully open, unlike globe valves. However, you should only use these valves in emergencies when full flow is needed—they get damaged by throttling over time. They have a nonrising stem that stays in the same spot whether they’re open or closed.

Wheel Handle—377 Brass Body with Brass Gate

Image of Product. Front orientation. Flow-Adjustment Valves. Threaded Flow-Adjustment Valves with Fire-Fighting Hose Fittings, Wheel Handle.

Valves with a wheel handle take up less space than valves with a speed handle. The included hose cap protects them from dirt and debris. It’s connected to the valve with a chain, so you won’t lose it.

Flow Coefficient (Cv)—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.

	Fire Hose Trade Size	Flow Coefficient (Cv)	Max. Pressure @ Temp.	Temp. Range, ° F	End-to-End Lg.	Stem Type	Features	Certification	Valve Type	For Use With	Seal Material		Each
NPT Female Inlet × NH/NST Male Outlet



	2 1/2	2 1/2	270	300 psi @ 72° F	32 to 100	5"	Nonrising	Hose Cap and Chain	UL Listed, FM Approved	Gate	Water	Buna-N	7461N11	0000000

Speed Handle—Red Brass Body with Bronze Gate

Image of Product. Front orientation. Flow-Adjustment Valves. Threaded Flow-Adjustment Valves with Fire-Fighting Hose Fittings, Speed Handle, Brass Body.

Valves with a speed handle can be turned with one hand, unlike valves with a wheel handle. Quickly connect the fittings to hydrants, pumps, and hoses with the easy-to-grip pin lugs on the sides. Tighten them with a hook-style spanner wrench. To prevent kinking when you’re connecting a hose, the fittings swivel until tightened. These valves are red so people know they’re fire valves.

	Flow Coefficient (Cv)	Max. Pressure @ Temp.	Temp. Range, ° F	End-to-End Lg.	Stem Type	Valve Type	For Use With	Seal Material		Each
NH/NST Female Inlet with Pin Lug (Swivels Until Tightened) × NH/NST Male Outlet



	2 1/2	Not Rated	175 psi @ 72° F	32 to 100	4 13/16"	Nonrising	Gate	Water	Buna-N	7461N12	0000000


	NH/NST Female Inlet with Pin Lug (Swivels Until Tightened) × NPSH Male Outlet



			2 1/2	Not Rated	175 psi @ 72° F	32 to 100	4 13/16"	Nonrising	Gate	Water	Buna-N	7461N13	000000

Color-Coded Quarter-Turn Water Supply Stop Valves for Hot and Cold Water

Quickly identify hot and cold water lines with these red or blue valves. The low-profile elbow shape and small handle are made to fit into tight spaces, such as plumbing outlet boxes (sold separately). Connect the NH/NST threads to a water hose on a washing machine or commercial plumbing fixture.

Solder-Socket Inlet Connection × NH/NST Male Outlet Connection


Solder-Socket Inlet Connection—For Cold Water	Solder-Socket Inlet Connection—For Hot Water

Valves with a solder-socket inlet connection are used for copper water lines.

						90° Elbow
	For Inlet Tube OD	For Inlet Copper Tube Size	Outlet Hose Size	Handle Material	Choose a Handle Color		Each
Brass



		5/8"	1/2	3/4	Powder-Coated Aluminum	Blue (For Cold Water), Red (For Hot Water)	3432N21	000000

Plumbing Outlet Boxes

Wd.	Ht.	Dp.	Material	Mounting Fasteners Included	No. of Mounting Holes	Mounting Hole Dia.		Each
10 1/4"	6 3/4"	2 1/2"	PVC	No	36	1/8"	3432N11	000000

Barbed Inlet Connection × NH/NST Male Outlet Connection


Barbed Inlet Connection—For Cold Water	Barbed Inlet Connection—For Hot Water

Valves with a barbed inlet are compatible with Viega PEX tubing; attach them to your line with a crimping tool and crimping ring (both sold separately).

							90° Elbow
	For Inlet Tube ID	Outlet Hose Size	Handle Material	Compatible With	Specs. Met	Choose a Handle Color		Each
Brass



		1/2"	3/4	Powder-Coated Aluminum	Viega PEX	ASTM F1807	Blue (For Cold Water), Red (For Hot Water)	3432N31	000000

Accessories for Valves

Wd.	Ht.	Dp.	Material	Mounting Fasteners Included	No. of Mounting Holes	Mounting Hole Dia.		Each
10 1/4"	6 3/4"	2 1/2"	PVC	No	36	1/8"	3432N11	000000


Crimping Tool	3528T61	Each	0000000
Crimping Rings	3528T12	Pkg. of 5	0000

Diverting Valves with Fire-Fighting Hose Fittings

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.

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

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

	Outlet Fire Hose Trade Sizes	Diverting Valve Flow Pattern	Flow Coefficient (Cv)	Max. Pressure @ Temp.	Temp. Range, ° F	End-to-End Lg.	Valve Type	For Use With	Seal Material		Each
Brass Body



	2 1/2	1 1/2 × 1 1/2	Y-Pattern	Not Rated	300 psi @ 150° F	-20 to 150	5 5/8"	Ball	Water	Buna-N	6504T5	0000000

Lever-Activated Stream Fire Hose Nozzles

Use the lever to turn water flow on and off. A rubber bumper provides impact resistance.

	Lg.	Spray End Dia.		Each
NH/NST Female







	Brass

	1 1/2	75 gpm @ 100 psi	3 1/4"	9 1/2"	1/2"	6479T5	0000000

Quick-Flow Stream Fire Hose Nozzles

Plastic

Brass

There’s no shut-off valve on these nozzles, so they provide instant water flow.

	Lg.	Spray End Dia.		Each
NH/NST Female







	Plastic

	1 1/2	73 gpm @ 100 psi	2 7/16"	10"	1/2"	6424T61	000000




			Brass

			1	28 gpm @ 100 psi	1 3/8"	8"	5/16"	6484T15	00000


			1 1/2	73 gpm @ 100 psi	2"	10"	1/2"	6484T29	00000
			2 1/2	168 gpm @ 100 psi	3 1/16"	12"	3/4"	6484T44	00000

Spray and Stream Fire Hose Nozzles


Polycarbonate	Brass	UL Listed Brass

Aluminum	Replacement Gaskets

Twist the barrel to adjust water flow. Nozzles have a textured barrel for grip and a rubber bumper for impact resistance.

Brass—Brass nozzles are more durable than aluminum nozzles.

Polycarbonate—Polycarbonate nozzles are durable and lightweight.

Aluminum—Aluminum nozzles are lighter than brass nozzles.

	Nozzles						Replacement Gaskets
	Hose Size	Flow Rate @ Pressure	Dia.	Lg.		Each		Each
NH/NST Female







				Polycarbonate

				1	22 gpm @ 100 psi	2 3/4"	4 3/4"	6469T441	000000	6469T713	00000


				1 1/2	75 gpm @ 100 psi	2 3/4"	4 5/8"	6469T231	00000	6469T711	0000
				2 1/2	150 gpm @ 100 psi	3 1/2"	9 1/8"	6469T491	000000	6469T718	0000




						Brass

						1	36 gpm @ 100 psi	2"	3 1/4"	6480T15	00000	———	0


						1 1/2	95 gpm @ 100 psi	2 1/2"	3 1/2"	6480T1	00000	6480T13	0000




								UL Listed Brass

								1 1/2	95 gpm @ 100 psi	2 11/16"	5 13/16"	6470T32	000000	———	0


								2 1/2	205 gpm @ 100 psi	3 1/4"	4 1/2"	6470T36	000000	———	0




										Aluminum

										1	24 gpm @ 100 psi	2 3/4"	4"	8327N12	000000	———	0


										1 1/2	60 gpm @ 100 psi	2 3/4"	4 1/2"	8327N14	000000	———	0