Straight Wyes | McMaster-Carr

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61 Products

Clear-View Socket-Connect Check Valves

Visually inspect flow and debris accumulation through the transparent valve body. Insert unthreaded pipe into the socket ends and bond with primer and cement to create a permanent, leak-tight connection. These valves open to allow flow in one direction and close when flow stops or reverses. They have a removable cap that provides easy access to internal components for maintenance.

PVC Body

Image of Product. Front orientation. Check Valves. Clear-View Socket-Connect Check Valves.

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.

	For Pipe Schedule	Flow Coefficient (Cv)	Max. Pressure @ Temp.	Min. Opening Pressure, psi	Temp. Range, ° F	Color	End-to-End Lg.	Mounting Position	Features	Specs. Met	For Use With	Piston Material	Seal Material		Each
Socket Connect × Socket Connect



	1/2	40, 80	6.7	150 psi @ 70° F	0.29	35 to 140	Clear	5 5/8"	Any Angle, Horizontal, Vertical	Removable Cap	ASTM D1784, ASTM D1785	Air, Water	PVC	EPDM	4754K52	000000


	3/4	40, 80	11.9	150 psi @ 70° F	0.29	35 to 140	Clear	6 5/16"	Any Angle, Horizontal, Vertical	Removable Cap	ASTM D1784, ASTM D1785	Air, Water	PVC	EPDM	4754K53	00000
	1	40, 80	21	150 psi @ 70° F	0.29	35 to 140	Clear	6 7/8"	Any Angle, Horizontal, Vertical	Removable Cap	ASTM D1784, ASTM D1785	Air, Water	PVC	EPDM	4754K54	00000
	1 1/2	40, 80	49	150 psi @ 70° F	0.29	35 to 140	Clear	8 1/8"	Any Angle, Horizontal, Vertical	Removable Cap	ASTM D1784, ASTM D1785	Air, Water	PVC	EPDM	4754K56	000000
	2	40, 80	77	150 psi @ 70° F	0.29	35 to 140	Clear	8 7/8"	Any Angle, Horizontal, Vertical	Removable Cap	ASTM D1784, ASTM D1785	Air, Water	PVC	EPDM	4754K57	000000
	3	40, 80	168	150 psi @ 70° F	0.29	35 to 140	Clear	12 1/4"	Any Angle, Horizontal, Vertical	Removable Cap	ASTM D1784, ASTM D1785	Air, Water	PVC	EPDM	4754K58	000000

Socket-Connect Check Valves for Harsh Chemicals

Insert unthreaded pipe into the socket ends and bond with primer and cement to create a permanent, leak-tight connection. These valves have a plastic body and a fluoroelastomer seal for excellent chemical resistance. They open to allow flow in one direction and close when flow stops or reverses.

PVC Body—Spring-Loaded Piston

Image of Product. Front orientation. Check Valves. Socket-Connect Check Valves for Harsh Chemicals.

	For Pipe Schedule	Flow Coefficient (Cv)	Max. Pressure @ Temp.	Min. Opening Pressure, psi	Temp. Range, ° F	Color	End-to-End Lg.	Mounting Position	Specs. Met	For Use With	Piston Material	Spring Material	Seal Material		Each
Socket Connect × Socket Connect—Pressure Class Not Rated



	3/4	40, 80	3	150 psi @ 70° F	2	40 to 140	Dark Gray	4 3/16"	Horizontal, Vertical	ASTM D1784	Citric Acid, Deionized Water, Diesel Fuel, Ethylene Glycol, Hydrochloric Acid, Isopropyl Alcohol, Kerosene, Mineral Spirits, Nitric Acid, Oil, Phosphoric Acid, Salt Water, Sodium Hypochlorite (Bleach), Water	PVC	PVC	Fluoroelastomer	1939N2	0000000


	1	40, 80	9	150 psi @ 70° F	2	40 to 140	Dark Gray	5 3/16"	Horizontal, Vertical	ASTM D1784	Citric Acid, Deionized Water, Diesel Fuel, Ethylene Glycol, Hydrochloric Acid, Isopropyl Alcohol, Kerosene, Mineral Spirits, Nitric Acid, Oil, Phosphoric Acid, Salt Water, Sodium Hypochlorite (Bleach), Water	PVC	PVC	Fluoroelastomer	1939N3	000000
	1 1/4	40, 80	26	150 psi @ 70° F	2	40 to 140	Dark Gray	6 5/8"	Horizontal, Vertical	ASTM D1784	Citric Acid, Deionized Water, Diesel Fuel, Ethylene Glycol, Hydrochloric Acid, Isopropyl Alcohol, Kerosene, Mineral Spirits, Nitric Acid, Oil, Phosphoric Acid, Salt Water, Sodium Hypochlorite (Bleach), Water	PVC	PVC	Fluoroelastomer	1939N4	000000
	1 1/2	40, 80	45	150 psi @ 70° F	2	40 to 140	Dark Gray	6 5/8"	Horizontal, Vertical	ASTM D1784	Citric Acid, Deionized Water, Diesel Fuel, Ethylene Glycol, Hydrochloric Acid, Isopropyl Alcohol, Kerosene, Mineral Spirits, Nitric Acid, Oil, Phosphoric Acid, Salt Water, Sodium Hypochlorite (Bleach), Water	PVC	PVC	Fluoroelastomer	1939N5	000000
	2	40, 80	65	150 psi @ 70° F	2	40 to 140	Dark Gray	7 5/8"	Horizontal, Vertical	ASTM D1784	Citric Acid, Deionized Water, Diesel Fuel, Ethylene Glycol, Hydrochloric Acid, Isopropyl Alcohol, Kerosene, Mineral Spirits, Nitric Acid, Oil, Phosphoric Acid, Salt Water, Sodium Hypochlorite (Bleach), Water	PVC	PVC	Fluoroelastomer	1939N6	000000

CPVC Body—Spring-Loaded Piston

	For Pipe Schedule	Flow Coefficient (Cv)	Max. Pressure @ Temp.	Min. Opening Pressure, psi	Temp. Range, ° F	Color	End-to-End Lg.	Mounting Position	Specs. Met	For Use With	Piston Material	Spring Material	Seal Material		Each
Socket Connect × Socket Connect—Pressure Class Not Rated



	1/2	40, 80	0.8	150 psi @ 70° F	2	40 to 190	Light Gray	3 3/8"	Horizontal, Vertical	ASTM D1784	Citric Acid, Deionized Water, Diesel Fuel, Hydrochloric Acid, Isopropyl Alcohol, Kerosene, Mineral Spirits, Nitric Acid, Oil, Phosphoric Acid, Salt Water, Sodium Hypochlorite (Bleach), Water	CPVC	CPVC	Fluoroelastomer	1939N11	0000000


	3/4	40, 80	3	150 psi @ 70° F	2	40 to 190	Light Gray	4 3/16"	Horizontal, Vertical	ASTM D1784	Citric Acid, Deionized Water, Diesel Fuel, Hydrochloric Acid, Isopropyl Alcohol, Kerosene, Mineral Spirits, Nitric Acid, Oil, Phosphoric Acid, Salt Water, Sodium Hypochlorite (Bleach), Water	CPVC	CPVC	Fluoroelastomer	1939N12	000000
	1	40, 80	9	150 psi @ 70° F	2	40 to 190	Light Gray	5 3/16"	Horizontal, Vertical	ASTM D1784	Citric Acid, Deionized Water, Diesel Fuel, Hydrochloric Acid, Isopropyl Alcohol, Kerosene, Mineral Spirits, Nitric Acid, Oil, Phosphoric Acid, Salt Water, Sodium Hypochlorite (Bleach), Water	CPVC	CPVC	Fluoroelastomer	1939N13	000000
	1 1/2	40, 80	45	150 psi @ 70° F	2	40 to 190	Light Gray	6 5/8"	Horizontal, Vertical	ASTM D1784	Citric Acid, Deionized Water, Diesel Fuel, Hydrochloric Acid, Isopropyl Alcohol, Kerosene, Mineral Spirits, Nitric Acid, Oil, Phosphoric Acid, Salt Water, Sodium Hypochlorite (Bleach), Water	CPVC	CPVC	Fluoroelastomer	1939N15	000000
	2	40, 80	65	150 psi @ 70° F	2	40 to 190	Light Gray	7 5/8"	Horizontal, Vertical	ASTM D1784	Citric Acid, Deionized Water, Diesel Fuel, Hydrochloric Acid, Isopropyl Alcohol, Kerosene, Mineral Spirits, Nitric Acid, Oil, Phosphoric Acid, Salt Water, Sodium Hypochlorite (Bleach), Water	CPVC	CPVC	Fluoroelastomer	1939N16	000000

Check Valves with Solder-Socket Fittings

Solder these valves to copper tubing for a permanent, leak-tight connection. They open to allow flow in one direction and close when flow stops or reverses. All have a removable cap that provides easy access to internal components for maintenance.

Bronze Body

Image of Product. Front orientation. Check Valves. Check Valves with Solder-Socket Fittings.

	For Tube OD	Flow Coefficient (Cv)	Max. Pressure @ Temp.	Max. Steam Pressure @ Temp.	Min. Opening Pressure, psi	Temp. Range, ° F	End-to-End Lg.	Mounting Position	Features	Specs. Met	For Use With	Disc Material	Seal Material		Each
Solder Socket × Solder Socket—Pressure Class 125



	1/4	3/8"	1.3	200 psi @ 70° F	125 psi @ 350° F	0.5	-20 to 405	2 1/16"	Horizontal, Vertical	Removable Cap	MSS SP-80	Steam, Water	Bronze	Bronze	9782K12	000000


	3/8	1/2"	2.5	200 psi @ 70° F	125 psi @ 350° F	0.5	-20 to 405	2 1/16"	Horizontal, Vertical	Removable Cap	MSS SP-80	Steam, Water	Bronze	Bronze	9782K14	00000
	1/2	5/8"	4.8	200 psi @ 70° F	125 psi @ 350° F	0.5	-20 to 405	2 9/16"	Horizontal, Vertical	Removable Cap	MSS SP-80	Steam, Water	Bronze	Bronze	9782K16	000000
	3/4	7/8"	14.3	200 psi @ 70° F	125 psi @ 350° F	0.5	-20 to 405	3 3/8"	Horizontal, Vertical	Removable Cap	MSS SP-80	Steam, Water	Bronze	Bronze	9782K18	000000
	1	1 1/8"	24	200 psi @ 70° F	125 psi @ 350° F	0.5	-20 to 405	4 1/16"	Horizontal, Vertical	Removable Cap	MSS SP-80	Steam, Water	Bronze	Bronze	9782K22	000000
	1 1/2	1 5/8"	60	200 psi @ 70° F	125 psi @ 350° F	0.5	-20 to 405	5 1/4"	Horizontal, Vertical	Removable Cap	MSS SP-80	Steam, Water	Bronze	Bronze	9782K26	000000
	2	2 1/8"	102	200 psi @ 70° F	125 psi @ 350° F	0.5	-20 to 405	6 3/8"	Horizontal, Vertical	Removable Cap	MSS SP-80	Steam, Water	Bronze	Bronze	9782K28	000000

High-Flow Threaded Check Valves

To achieve the maximum possible flow, internal components are designed to reduce flow resistance. These valves open to allow flow in one direction and close when flow stops or reverses. A removable cap provides easy access to internal components for maintenance.

Bronze Body


	Repair Kit for 200 and 300 Pressure Classes

Repair Kits—Repair kits include everything you need to rebuild the valve.

	Check Valves															Repair Kits
	Pipe Size	Flow Coefficient (Cv)	Max. Pressure @ Temp.	Max. Steam Pressure @ Temp.	Min. Opening Pressure, psi	Temp. Range, ° F	End-to-End Lg.	Mounting Position	Features	Specs. Met	For Use With	Disc Material	Seal Material		Each	For Pressure Class	For Pipe Size		Each
NPT Female Inlet × NPT Female Outlet—Pressure Class 150



		1/4	2.3	300 psi @ 150° F	150 psi @ 366° F	0.5	-20 to 405	2 1/4"	Horizontal, Vertical	Removable Cap	MSS SP-80	Air, Argon, Helium, Krypton, Neon, Steam, Water, Xenon	Bronze	Bronze	9773K51	000000	—	—	———	0


		3/8	4.3	300 psi @ 150° F	150 psi @ 366° F	0.5	-20 to 405	2 1/4"	Horizontal, Vertical	Removable Cap	MSS SP-80	Air, Argon, Helium, Krypton, Neon, Steam, Water, Xenon	Bronze	Bronze	9773K52	00000	—	—	———	0
		1/2	7.2	300 psi @ 150° F	150 psi @ 366° F	0.5	-20 to 405	2 5/8"	Horizontal, Vertical	Removable Cap	MSS SP-80	Air, Argon, Helium, Krypton, Neon, Steam, Water, Xenon	Brass	Brass	9773K53	00000	—	—	———	0
		3/4	13	300 psi @ 150° F	150 psi @ 366° F	0.5	-20 to 405	3"	Horizontal, Vertical	Removable Cap	MSS SP-80	Air, Argon, Helium, Krypton, Neon, Steam, Water, Xenon	Brass	Brass	9773K54	000000	—	—	———	0
		1	22	300 psi @ 150° F	150 psi @ 366° F	0.5	-20 to 405	3 11/16"	Horizontal, Vertical	Removable Cap	MSS SP-80	Air, Argon, Helium, Krypton, Neon, Steam, Water, Xenon	Brass	Brass	9773K55	000000	—	—	———	0
		1 1/4	39	300 psi @ 150° F	150 psi @ 366° F	0.5	-20 to 405	4 3/8"	Horizontal, Vertical	Removable Cap	MSS SP-80	Air, Argon, Helium, Krypton, Neon, Steam, Water, Xenon	Brass	Brass	9773K56	000000	—	—	———	0
		1 1/2	56	300 psi @ 150° F	150 psi @ 366° F	0.5	-20 to 405	4 5/8"	Horizontal, Vertical	Removable Cap	MSS SP-80	Air, Argon, Helium, Krypton, Neon, Steam, Water, Xenon	Brass	Brass	9773K57	000000	—	—	———	0
		2	92	300 psi @ 150° F	150 psi @ 366° F	0.5	-20 to 405	5 7/8"	Horizontal, Vertical	Removable Cap	MSS SP-80	Air, Argon, Helium, Krypton, Neon, Steam, Water, Xenon	Bronze	Bronze	9773K58	000000	—	—	———	0


		NPT Female Inlet × NPT Female Outlet—Pressure Class 200



				1/4	2.3	400 psi @ 150° F	200 psi @ 388° F	0.5	-20 to 550	2 1/4"	Horizontal, Vertical	Removable Cap	MSS SP-80	Air, Argon, Helium, Krypton, Neon, Steam, Water, Xenon	Bronze	Bronze	9770K61	000000	200, 300	1/4	9770K115	000000


				3/8	4.3	400 psi @ 150° F	200 psi @ 388° F	0.5	-20 to 550	2 1/4"	Horizontal, Vertical	Removable Cap	MSS SP-80	Air, Argon, Helium, Krypton, Neon, Steam, Water, Xenon	Bronze	Bronze	9770K62	000000	200, 300	3/8	9770K121	00000
				1/2	7.2	400 psi @ 150° F	200 psi @ 388° F	0.5	-20 to 550	2 5/8"	Horizontal, Vertical	Removable Cap	MSS SP-80	Air, Argon, Helium, Krypton, Neon, Steam, Water, Xenon	Bronze	Bronze	9770K63	000000	200, 300	1/2	9770K114	00000
				3/4	13	400 psi @ 150° F	200 psi @ 388° F	0.5	-20 to 550	3"	Horizontal, Vertical	Removable Cap	MSS SP-80	Air, Argon, Helium, Krypton, Neon, Steam, Water, Xenon	Bronze	Bronze	9770K64	000000	200, 300	3/4	9770K119	00000
				1	22	400 psi @ 150° F	200 psi @ 388° F	0.5	-20 to 550	3 11/16"	Horizontal, Vertical	Removable Cap	MSS SP-80	Air, Argon, Helium, Krypton, Neon, Steam, Water, Xenon	Bronze	Bronze	9770K65	000000	200, 300	1	9770K111	00000
				1 1/4	39	400 psi @ 150° F	200 psi @ 388° F	0.5	-20 to 550	4 3/8"	Horizontal, Vertical	Removable Cap	MSS SP-80	Air, Argon, Helium, Krypton, Neon, Steam, Water, Xenon	Bronze	Bronze	9770K66	000000	200, 300	1 1/4	9770K113	000000
				1 1/2	56	400 psi @ 150° F	200 psi @ 388° F	0.5	-20 to 550	4 5/8"	Horizontal, Vertical	Removable Cap	MSS SP-80	Air, Argon, Helium, Krypton, Neon, Steam, Water, Xenon	Bronze	Bronze	9770K67	000000	200, 300	1 1/2	9770K112	000000
				2	92	400 psi @ 150° F	200 psi @ 388° F	0.5	-20 to 550	5 7/8"	Horizontal, Vertical	Removable Cap	MSS SP-80	Air, Argon, Helium, Krypton, Neon, Steam, Water, Xenon	Bronze	Bronze	9770K68	000000	200, 300	2	9770K116	000000
				2 1/2	150	400 psi @ 150° F	200 psi @ 388° F	0.5	-20 to 550	7"	Horizontal, Vertical	Removable Cap	MSS SP-80	Air, Argon, Helium, Krypton, Neon, Steam, Water, Xenon	Bronze	Bronze	9770K69	00000000	200, 300	2 1/2	9770K117	000000


				NPT Female Inlet × NPT Female Outlet—Pressure Class 300



						1/4	2.3	600 psi @ 150° F	300 psi @ 422° F	0.5	-20 to 550	2 1/4"	Horizontal, Vertical	Removable Cap	MSS SP-80	Air, Argon, Helium, Krypton, Neon, Steam, Water, Xenon	Bronze	Bronze	9770K71	000000	200, 300	1/4	9770K115	00000


						3/8	4.3	600 psi @ 150° F	300 psi @ 422° F	0.5	-20 to 550	2 1/4"	Horizontal, Vertical	Removable Cap	MSS SP-80	Air, Argon, Helium, Krypton, Neon, Steam, Water, Xenon	Bronze	Bronze	9770K72	000000	200, 300	3/8	9770K121	00000
						1/2	7.2	600 psi @ 150° F	300 psi @ 422° F	0.5	-20 to 550	2 5/8"	Horizontal, Vertical	Removable Cap	MSS SP-80	Air, Argon, Helium, Krypton, Neon, Steam, Water, Xenon	Bronze	Bronze	9770K73	000000	200, 300	1/2	9770K114	00000
						3/4	13	600 psi @ 150° F	300 psi @ 422° F	0.5	-20 to 550	3"	Horizontal, Vertical	Removable Cap	MSS SP-80	Air, Argon, Helium, Krypton, Neon, Steam, Water, Xenon	Bronze	Bronze	9770K74	000000	200, 300	3/4	9770K119	00000
						1	22	600 psi @ 150° F	300 psi @ 422° F	0.5	-20 to 550	3 11/16"	Horizontal, Vertical	Removable Cap	MSS SP-80	Air, Argon, Helium, Krypton, Neon, Steam, Water, Xenon	Bronze	Bronze	9770K75	000000	200, 300	1	9770K111	00000
						1 1/4	39	600 psi @ 150° F	300 psi @ 422° F	0.5	-20 to 550	4 3/8"	Horizontal, Vertical	Removable Cap	MSS SP-80	Air, Argon, Helium, Krypton, Neon, Steam, Water, Xenon	Bronze	Bronze	9770K76	000000	200, 300	1 1/4	9770K113	000000
						1 1/2	56	600 psi @ 150° F	300 psi @ 422° F	0.5	-20 to 550	4 5/8"	Horizontal, Vertical	Removable Cap	MSS SP-80	Air, Argon, Helium, Krypton, Neon, Steam, Water, Xenon	Bronze	Bronze	9770K77	000000	200, 300	1 1/2	9770K112	000000
						2	92	600 psi @ 150° F	300 psi @ 422° F	0.5	-20 to 550	5 7/8"	Horizontal, Vertical	Removable Cap	MSS SP-80	Air, Argon, Helium, Krypton, Neon, Steam, Water, Xenon	Bronze	Bronze	9770K78	000000	200, 300	2	9770K116	000000
						2 1/2	150	600 psi @ 150° F	300 psi @ 422° F	0.5	-20 to 550	7"	Horizontal, Vertical	Removable Cap	MSS SP-80	Air, Argon, Helium, Krypton, Neon, Steam, Water, Xenon	Bronze	Bronze	9770K79	00000000	200, 300	2 1/2	9770K117	000000

Clear-View Socket-Connect Check Valves for Harsh Chemicals

Visually inspect flow and debris accumulation through the transparent valve body. Insert unthreaded pipe into the socket ends and bond with primer and cement to create a permanent, leak-tight connection. Valves have a PVC body and a fluoroelastomer seal for excellent chemical resistance. They open to allow flow in one direction and close when flow stops or reverses. All have a removable cap that provides easy access to internal components for maintenance.

PVC Body

Image of Product. Front orientation. Check Valves. Clear-View Socket-Connect Check Valves for Harsh Chemicals.

	For Pipe Schedule	Flow Coefficient (Cv)	Max. Pressure @ Temp.	Min. Opening Pressure, psi	Temp. Range, ° F	Color	End-to-End Lg.	Mounting Position	Features	Specs. Met	For Use With	Piston Material	Seal Material		Each
Socket Connect × Socket Connect



	1/2	40, 80	6.7	150 psi @ 70° F	0.29	35 to 140	Clear	5 5/8"	Any Angle, Horizontal, Vertical	Removable Cap	ASTM D1784, ASTM D1785	Carbon Dioxide, Citric Acid, Deionized Water, Diesel Fuel, Hydrochloric Acid, Methanol (Methyl Alcohol), Nitric Acid, Phosphoric Acid, Salt Water, Sulfuric Acid, Water	PVC	Fluoroelastomer	4754K42	000000


	3/4	40, 80	11.9	150 psi @ 70° F	0.29	35 to 140	Clear	6 5/16"	Any Angle, Horizontal, Vertical	Removable Cap	ASTM D1784, ASTM D1785	Carbon Dioxide, Citric Acid, Deionized Water, Diesel Fuel, Hydrochloric Acid, Methanol (Methyl Alcohol), Nitric Acid, Phosphoric Acid, Salt Water, Sulfuric Acid, Water	PVC	Fluoroelastomer	4754K43	00000
	1	40, 80	21	150 psi @ 70° F	0.29	35 to 140	Clear	6 7/8"	Any Angle, Horizontal, Vertical	Removable Cap	ASTM D1784, ASTM D1785	Carbon Dioxide, Citric Acid, Deionized Water, Diesel Fuel, Hydrochloric Acid, Methanol (Methyl Alcohol), Nitric Acid, Phosphoric Acid, Salt Water, Sulfuric Acid, Water	PVC	Fluoroelastomer	4754K44	00000