Valves for Acetic Acid | McMaster-Carr

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For Use With

Acetic Acid (White Vinegar)

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Hydraulic Fluid (Petroleum Based)

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Methanol (Methyl Alcohol)

Methyl Ethyl Ketone (MEK)

Sodium Bicarbonate (Baking Soda)

Sodium Carbonate (Soda Ash)

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Cam-and-Groove Component

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28 Products

About Pipe and Fittings

Measure your pipe and fittings to identify their pipe size, thread size, schedule, and thread type. Then, find compatible components.

Plastic Cam-and-Groove Hose Couplings with Shut-Off Valve for Chemicals

These polypropylene couplings are lighter in weight than metal cam-and-groove couplings, yet have the corrosion resistance to handle chemical applications. They have excellent strength and abrasion resistance. Couplings consist of a plug and a socket that are sold together as a set. Use them to quickly connect and disconnect medium-to large-diameter hose lines. Also known as dry disconnects and double shut-off couplings, the plug and the socket both have a shut-off valve for minimal fluid loss when disconnecting the hose line. To connect, insert the plug into the socket, press the locking levers down, and turn the valve handles to the open position. The locking levers prevent accidental disconnection. To disconnect, turn the valve handles to the closed position, lift both levers, and pull out the plug. Couplings cannot be disconnected when the valves are open. They are not compatible with any other style of coupling. Dust covers are included to protect the ends of couplings when not in use.

Note: The listed length refers to the length of the coupling when connected.

Warning: Relieve all pressure before disconnecting the couplings. Do not use cam-and-groove couplings with compressed air or gas.

Plug and Socket Sets

For Use With: Acetic Acid, Magnesium Chloride
Max. Pressure: 100 psi @ 72° F
Temperature Range: -20° to 150° F

Plug and Socket Sets
			Plug		Socket					Replacement Gaskets
Coupling Size	Pipe Size	Thread Type	Connection Style	OD	Connection Style	ID	Valve Type		Each	Pkg. Qty.		Pkg.
Polypropylene Plastic
1 1/2	1 1/2	NPT	Cam-and-Groove Male × Threaded Female	2 1/8"	Cam-and-Groove Female × Threaded Female	2 1/8"	Ball	5064K21	0000000	10	5647K63	000000
2	2	NPT	Cam-and-Groove Male × Threaded Female	2 1/2"	Cam-and-Groove Female × Threaded Female	2 1/2"	Ball	5064K22	000000	10	5647K64	00000

Right-Angle Flow Rectangular Manifolds

Distribute air or fluid to multiple locations from a single supply source with these manifolds. They are also known as headers. They have mounting holes, so you can mount from the top or side.

PTFE manifolds have the best chemical and corrosion resistance of all the plastic and metal manifolds we offer, so they’re the best choice for acids and other highly corrosive substances. Do not use with deonized water at temperatures above 120° F.

Use a plug (sold separately) to close off any unused inlets and outlets.

PTFE—NPT Inlets × NPT Outlets

Outlets on One Side

For Use With: Acetic Acid, Acetone, Bleach, Deionized Water, Hydrochloric Acid, Nitric Acid, Phosphoric Acid, Sulfuric Acid
Temperature Range: -20° to 180° F
Maximum Pressure: 120 psi @ 72° F

Outlets on One Side—Standard Outlet Spacing
No. of Outlets	Inlet Pipe Size	Outlet Pipe Size	Lg.	Wd.	Ht.	Outlet Ctr.-to-Ctr.	Color		Each
2	1/4	1/8	1 3/4"	1"	1"	3/4"	White	3942N11	000000
2	3/8	1/4	2 3/8"	1 1/4"	1 1/4"	7/8"	White	3942N12	00000
2	1/2	3/8	2 3/4"	1 1/2"	1 1/2"	1"	White	3942N13	00000
4	1/4	1/8	3 1/4"	1"	1"	3/4"	White	3942N14	00000
4	3/8	1/4	4 1/8"	1 1/4"	1 1/4"	7/8"	White	3942N15	00000
4	1/2	3/8	4 3/4"	1 1/2"	1 1/2"	1"	White	3942N16	000000

Plugs

PTFE Plastic—NPT
Pipe Size	Max. Pressure		Each
1/8	110 psi @ 72° F	45375K252	000000
1/4	90 psi @ 72° F	45375K253	00000
3/8	60 psi @ 72° F	45375K254	00000
1/2	60 psi @ 72° F	45375K255	00000

High-Flow Quick-Disconnect Tube Couplings for Chemicals

For Use With: Acetic Acid (20%), Ammonia, Carbon Dioxide, Citric Acid, Diesel Fuel, Ethanol, Ethylene Glycol, Gasoline, Hydraulic Fluid (Petroleum Based), Hydrochloric Acid, Hydrogen Peroxide (30%), Kerosene, Methanol, Nitric Acid (20%), Potassium Hydroxide, Sodium Carbonate, Sodium Hydroxide (20%), Sulfuric Acid (75%), Synthetic Oil
Temperature Range: 32° to 250° F
Tubing: Use with soft or firm (Durometer 55A-95A) nylon plastic, polyethylene plastic, polypropylene plastic, polyurethane rubber, PVC plastic or TPE plastic

A spring-free flow path allows more chemicals to pass through these tube couplings at lower line pressures than other quick-disconnect couplings. This reduces turbulence, foaming, bubbles, and blockage. They have a shut-off valve that stops the flow when the coupling is disconnected, so chemicals won’t leak from your line. Unlike couplings with a button release, these have a safety slide to reduce accidental separation from bumps or drops. They are often used in laboratories, pharmaceutical facilities, and other sterile environments.

Made of PVDF, also known as Kynar, these couplings have excellent chemical and UV resistance at ambient and elevated temperatures. They also resist abrasion, impact, flames, and corrosion. Compared to other quick-disconnect couplings for chemicals, these couplings can withstand higher temperatures—all the way up to 250° F.

When you insert the plug into the socket, it’ll connect with a click. To disconnect, slide the latch on the socket and remove the plug.

Note: For a complete coupling, order a plug and a socket with the same coupling size.

Plugs, Barbed Tube

They have a single barb that grips onto tubing or hose and provides a smooth clamping surface for extra-tight connections that minimize leaks.

						With Shut-Off
For Tube ID	Coupling Size	Plug OD	Material	Color	Max. Pressure		Each
1/8"	7/8	9/16"	PVDF Plastic	White	90 psi @ 72° F	8568N32	000000
1/4"	1	11/16"	PVDF Plastic	White	90 psi @ 72° F	8568N36	00000
1/2"	1 3/8	1"	PVDF Plastic	White	90 psi @ 72° F	8568N41	00000

Plugs, Male Threaded Pipe

						With Shut-Off
Pipe Size	Coupling Size	Plug OD	Material	Color	Max. Pressure		Each
NPT Threads
1/8	7/8	9/16"	PVDF Plastic	White	90 psi @ 72° F	8568N12	000000
1/4	1	11/16"	PVDF Plastic	White	90 psi @ 72° F	8568N16	00000
3/8	1	11/16"	PVDF Plastic	White	90 psi @ 72° F	8568N21	00000
1/2	1 3/8	1"	PVDF Plastic	White	90 psi @ 72° F	8568N25	00000

Sockets, Barbed Tube

They have a single barb that grips onto tubing or hose and provides a smooth clamping surface for extra-tight connections that minimize leaks.

						With Shut-Off
For Tube ID	Coupling Size	For Plug OD	Material	Color	Max. Pressure		Each
1/8"	7/8	9/16"	PVDF Plastic	White	90 psi @ 72° F	8568N31	000000
1/4"	1	11/16"	PVDF Plastic	White	90 psi @ 72° F	8568N35	00000
1/2"	1 3/8	1"	PVDF Plastic	White	90 psi @ 72° F	8568N39	00000

Sockets, Male Threaded Pipe

						With Shut-Off
Pipe Size	Coupling Size	For Plug OD	Material	Color	Max. Pressure		Each
NPT Threads
1/8	7/8	9/16"	PVDF Plastic	White	90 psi @ 72° F	8568N11	000000
1/4	1	11/16"	PVDF Plastic	White	90 psi @ 72° F	8568N15	00000
3/8	1	11/16"	PVDF Plastic	White	90 psi @ 72° F	8568N19	00000
1/2	1 3/8	1"	PVDF Plastic	White	90 psi @ 72° F	8568N24	00000