Pipe Fittings for Hydrofluoric Acid

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30 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.

For Use With: Air, Cutting Oil, Diesel Fuel, Fuel Oil, Gasoline, Hydraulic Fluid, Hydrofluoric Acid, Mineral Oil, Salt Water, Steam, Sulfuric Acid, Water
Temperature Range: -325° to 900° F
Tubing: Use with seamless soft 400 nickel
Specifications Met: See table

Made of 400 nickel, these Monel fittings have the corrosion resistance to handle hydrofluoric and sulfuric acid. Also known as instrumentation fittings, they are made to tight tolerances for use in high-precision applications. They include a nut with two sleeves (ferrules). The sleeves bite into tubing as you tighten the nut, creating a strong, leak-tight seal. They are compatible with Swagelok®, Let-Lok, and A-Lok fittings.

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

Straight Adapters, Tube × Male Threaded Pipe

For Tube
OD	Wall Thick.	Pipe Size	Material	Max. Pressure	Specifications Met		Each
NPT Threads
1/4"	0.035"	1/4	400 Nickel	4,800 psi @ 72° F	ASME B1.20.1, ASME B31.1, ASME B31.3, ASTM B164	00000000	000000
3/8"	0.035"	1/4	400 Nickel	3,100 psi @ 72° F	ASME B1.20.1, ASME B31.1, ASME B31.3, ASTM B164	00000000	00000
3/8"	0.035"	3/8	400 Nickel	3,100 psi @ 72° F	ASME B1.20.1, ASME B31.1, ASME B31.3, ASTM B164	00000000	00000
1/2"	0.035"	1/2	400 Nickel	2,300 psi @ 72° F	ASME B1.20.1, ASME B31.1, ASME B31.3, ASTM B164	00000000	00000

Straight Adapters, Tube x Female Threaded Pipe

For Tube
OD	Wall Thick.	Pipe Size	Material	Max. Pressure	Specifications Met		Each
NPT Threads
1/4"	0.035"	1/4	400 Nickel	4,800 psi @ 72° F	ASME B1.20.1, ASME B31.1, ASME B31.3, ASTM B164	00000000	000000
3/8"	0.035"	1/4	400 Nickel	3,100 psi @ 72° F	ASME B1.20.1, ASME B31.1, ASME B31.3, ASTM B164	00000000	00000
3/8"	0.035"	3/8	400 Nickel	3,100 psi @ 72° F	ASME B1.20.1, ASME B31.1, ASME B31.3, ASTM B164	00000000	00000
1/2"	0.035"	1/2	400 Nickel	2,300 psi @ 72° F	ASME B1.20.1, ASME B31.1, ASME B31.3, ASTM B164	00000000	000000

90° Elbow Adapters, Tube × Male Threaded Pipe

For Tube
OD	Wall Thick.	Pipe Size	Material	Max. Pressure	Specifications Met		Each
NPT Threads
1/4"	0.035"	1/4	400 Nickel	4,800 psi @ 72° F	ASME B1.20.1, ASME B31.1, ASME B31.3, ASTM B564	00000000	000000
3/8"	0.035"	1/4	400 Nickel	3,100 psi @ 72° F	ASME B1.20.1, ASME B31.1, ASME B31.3, ASTM B564	00000000	00000
3/8"	0.035"	3/8	400 Nickel	3,100 psi @ 72° F	ASME B1.20.1, ASME B31.1, ASME B31.3, ASTM B564	00000000	000000
1/2"	0.035"	1/2	400 Nickel	2,300 psi @ 72° F	ASME B1.20.1, ASME B31.1, ASME B31.3, ASTM B564	00000000	000000

Nuts

For Tube OD	Nut Material	Max. Pressure	Specifications Met		Each
1/4"	400 Nickel	4,800 psi @ 72° F	ASTM B164	00000000	00000
3/8"	400 Nickel	3,100 psi @ 72° F	ASTM B164	00000000	00000
1/2"	400 Nickel	2,300 psi @ 72° F	ASTM B164	00000000	00000

Front and Back Sleeves

For Tube OD	Sleeve Material	Max. Pressure	Specifications Met		Each
1/4"	400 Nickel	4,800 psi @ 72° F	ASTM B164	00000000	00000
3/8"	400 Nickel	3,100 psi @ 72° F	ASTM B164	00000000	00000
1/2"	400 Nickel	2,300 psi @ 72° F	ASTM B164	00000000	00000

Compression Fittings for Plastic Tubing—Chemicals

For Use With: PFA Plastic: Hydrochloric Acid, Sulfuric Acid
PTFE Plastic: Alcohol, Ammonia, Benzoic Acid, Bleach, Bromine, Coolant, Fluoboric Acid, Hydrochloric Acid, Hydrofluoric Acid, Nitric Acid, Organic Solvents, Sodium Carbonate, Sulfuric Acid
Temperature Range: PFA Plastic: 0° to 350° F
PTFE Plastic: -40° to 185° F
Tubing: PFA Plastic: Use with hard (Durometer 50D-65D) PFA or PTFE plastic
PTFE Plastic: Use with hard (Durometer 60D) PFA or PTFE plastic

A sleeve (ferrule) compresses the tubing as you tighten the nut, creating a strong seal. The nut and sleeve are included. Fittings are also known as flareless fittings. Fittings that include a gripper sleeve on the tubing create an even tighter seal.

PTFE fittings are highly resistant to most acids, alcohols, detergents, and solvents. They’re made by machining. Their nut is made of PVDF, which is resistant to halogens such as chlorine and bromine, strong acids such as hydrofluoric and nitric acids, and organic solvents.

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

Straight Adapters, Tube × Male Threaded Pipe

NPT Threads
For Tube OD	Pipe Size	Material	Color	Max. Pressure		Each
4mm	1/8	PTFE Plastic	White	100 psi @ 72° F	000000000	000000
6mm	1/8	PTFE Plastic	White	100 psi @ 72° F	000000000	00000
6mm	1/4	PTFE Plastic	White	100 psi @ 72° F	000000000	00000
8mm	1/4	PTFE Plastic	White	100 psi @ 72° F	000000000	00000
10mm	1/4	PTFE Plastic	White	100 psi @ 72° F	000000000	000000
10mm	3/8	PTFE Plastic	White	100 psi @ 72° F	000000000	00000
12mm	3/8	PTFE Plastic	White	80 psi @ 72° F	000000000	00000
12mm	1/2	PTFE Plastic	White	80 psi @ 72° F	000000000	00000

Straight Adapters, Tube × Female Threaded Pipe

NPT Threads
For Tube OD	Pipe Size	Material	Color	Max. Pressure		Each
10mm	3/8	PTFE Plastic	White	100 psi @ 72° F	000000000	0000000

90° Elbow Adapters, Tube × Male Threaded Pipe

NPT Threads
For Tube OD	Pipe Size	Material	Color	Max. Pressure		Each
6mm	1/8	PTFE Plastic	White	100 psi @ 72° F	000000000	000000
6mm	1/4	PTFE Plastic	White	100 psi @ 72° F	000000000	00000
10mm	3/8	PTFE Plastic	White	100 psi @ 72° F	000000000	000000

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How to Identify and Measure Fittings

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Compression Fittings for Plastic Tubing—Chemicals