Pipe Fittings for Liquid Nitrogen

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	Pipe Size Pipe Size

1/16

	Thread Type Thread Type

BSPP

BSPT

NPT

	Type Type


Connector	Adapter

Reducing Adapter	Bushing

Reducer	Plug

Cap

	Shape Shape


Straight	90° Elbow

Tee	Cap/Plug

45° Elbow	Cross

	Material Material

304 Stainless Steel

316 Stainless Steel

	Connection Style Connection Style

	For Use With For Use With	Show

Liquid Nitrogen

	For Use With For Use With	Hide

Warning: Products have one, but not necessarily all, of the selected characteristics.

Citric Acid (25%
Concentration)

Citric Acid (50%
Concentration)

Citric Acid (100%
Concentration)

Hydrochloric Acid (25%
Concentration)

Hydrochloric Acid (37%
Concentration)

Hydrochloric Acid (100%
Concentration)

Liquid Carbon Dioxide

Methyl Ethyl Ketone
(MEK)

Nitric Acid (25%
Concentration)

Nitric Acid (50%
Concentration)

Nitric Acid (100%
Concentration)

Phosphoric Acid (25%
Concentration)

Phosphoric Acid (50%
Concentration)

Phosphoric Acid (100%
Concentration)

Sodium Carbonate
(20% in Water)

Sodium Chloride

Sodium Hydroxide

Sodium Hydroxide (25%
Concentration)

Sodium Hydroxide (50%
Concentration)

Sodium Hydroxide (100%
Concentration)

Sodium Hypochlorite
(25% Concentration)

Sodium Hypochlorite
(50% Concentration)

Sodium Hypochlorite
(100% Concentration)

Tungsten Hexafluoride

	Gender Gender

Female

Male

	Maximum Pressure Maximum Pressure

	Connection Type Connection Type


Pipe	Tube

	Body Shape Body Shape

	Hex

	Maximum Steam Pressure Maximum Steam Pressure

	Dash Size Dash Size

	Fabrication Fabrication

Forged

Machined

	Specifications Met Specifications Met

ANSI/ASME

ASTM

FDA Compliant

ISO

	System of Measurement System of Measurement

Inch

	Length Length

	Thread Fabrication Thread Fabrication

Rolled

	Hex Width Hex Width

	Drive Style Drive Style


External Hex	Hex

	Drive Size Drive Size

	Tee Style Tee Style


Inline	Right Angle

	Plug Construction Plug Construction

Solid

	For Tube OD For Tube OD

1/4"

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227 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 Backflow-Prevention Valves

Precision Extreme-Pressure Stainless
Steel Threaded Pipe Fittings

Made to tighter tolerances than other stainless steel pipe fittings, these are also known as instrumentation fittings. The male threads are rolled for extra strength in extreme-pressure applications. Fittings are commonly used to connect equipment in gas and hydraulic fluid lines. They are 316 stainless steel for excellent corrosion resistance.

Female x male 90° elbow adapters are also known as street elbows. Inline tees are also known as branch tees. Right-angle tees are also known as run tees.

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

Straight Connectors, Female

For Use With: Hydraulic Fluid, Liquid Nitrogen, Natural Gas, Steam, Water
Specifications Met: ANSI/ASME B1.20.1, ANSI/ASME B31.1, ANSI/ASME B31.3

				316 Stainless Steel
Pipe Size	Dash Size	Max. Pressure	Max. Steam Pressure		Each
NPT Female
1/16	__	7,500 psi @ 72° F	7,500 psi @ 300° F	000000000	000000
1/8	02	6,400 psi @ 72° F	6,400 psi @ 300° F	00000000	00000
1/4	04	6,600 psi @ 72° F	6,600 psi @ 300° F	00000000	00000
3/8	06	5,300 psi @ 72° F	5,300 psi @ 300° F	00000000	00000
1/2	08	5,200 psi @ 72° F	5,200 psi @ 300° F	00000000	00000
3/4	12	4,600 psi @ 72° F	4,600 psi @ 300° F	000000000	00000
1	16	4,400 psi @ 72° F	4,400 psi @ 300° F	000000000	00000

Straight Connectors, Male

For Use With: Hydraulic Fluid, Liquid Nitrogen, Natural Gas, Steam, Water
Specifications Met: ANSI/ASME B1.20.1, ANSI/ASME B31.1, ANSI/ASME B31.3

				316 Stainless Steel
Pipe Size	Dash Size	Max. Pressure	Max. Steam Pressure		Each
NPT Male
1/16	__	10,000 psi @ 72° F	10,000 psi @ 300° F	000000000	000000
1/8	02	9,100 psi @ 72° F	9,100 psi @ 300° F	00000000	0000
1/4	04	7,500 psi @ 72° F	7,500 psi @ 300° F	00000000	0000
3/8	06	7,200 psi @ 72° F	7,200 psi @ 300° F	000000000	00000
1/2	08	6,600 psi @ 72° F	6,600 psi @ 300° F	000000000	00000

Straight Connectors with Hex, Male

For Use With: Hydraulic Fluid, Liquid Nitrogen, Natural Gas, Steam, Water
Specifications Met: ANSI/ASME B1.20.1, ANSI/ASME B31.1, ANSI/ASME B31.3

					316 Stainless Steel
Pipe Size	Dash Size	Lg.	Max. Pressure	Max. Steam Pressure		Each
NPT Male
1/16	__	1 1/16"	10,000 psi @ 72° F	10,000 psi @ 300° F	000000000	000000
1/16	__	2"	10,000 psi @ 72° F	10,000 psi @ 300° F	000000000	00000
1/16	__	2 1/2"	10,000 psi @ 72° F	10,000 psi @ 300° F	000000000	00000
1/16	__	3"	10,000 psi @ 72° F	10,000 psi @ 300° F	000000000	00000
1/16	__	4"	10,000 psi @ 72° F	10,000 psi @ 300° F	000000000	00000
1/8	02	1 1/16"	9,100 psi @ 72° F	9,100 psi @ 300° F	00000000	0000
1/8	02	2"	9,100 psi @ 72° F	9,100 psi @ 300° F	000000000	00000
1/8	02	2 1/2"	9,100 psi @ 72° F	9,100 psi @ 300° F	000000000	00000
1/8	02	3"	9,100 psi @ 72° F	9,100 psi @ 300° F	000000000	00000
1/8	02	4"	9,100 psi @ 72° F	9,100 psi @ 300° F	000000000	00000
1/4	04	1 7/16"	7,500 psi @ 72° F	7,500 psi @ 300° F	00000000	0000
1/4	04	2"	7,500 psi @ 72° F	7,500 psi @ 300° F	00000000	00000
1/4	04	2 1/2"	7,500 psi @ 72° F	7,500 psi @ 300° F	00000000	00000
1/4	04	3"	7,500 psi @ 72° F	7,500 psi @ 300° F	00000000	00000
1/4	04	4"	7,500 psi @ 72° F	7,500 psi @ 300° F	00000000	00000
3/8	06	1 7/16"	7,200 psi @ 72° F	7,200 psi @ 300° F	000000000	00000
3/8	06	2"	7,200 psi @ 72° F	7,200 psi @ 300° F	000000000	00000
3/8	06	2 1/2"	7,200 psi @ 72° F	7,200 psi @ 300° F	000000000	00000
3/8	06	3"	7,200 psi @ 72° F	7,200 psi @ 300° F	000000000	00000
3/8	06	4"	7,200 psi @ 72° F	7,200 psi @ 300° F	000000000	00000
1/2	08	1 7/8"	6,600 psi @ 72° F	6,600 psi @ 300° F	000000000	00000
1/2	08	2"	6,600 psi @ 72° F	6,600 psi @ 300° F	000000000	00000
1/2	08	2 1/2"	6,600 psi @ 72° F	6,600 psi @ 300° F	000000000	00000
1/2	08	3"	6,600 psi @ 72° F	6,600 psi @ 300° F	000000000	00000
1/2	08	4"	6,600 psi @ 72° F	6,600 psi @ 300° F	000000000	00000
3/4	12	1 27/32"	7,300 psi @ 72° F	7,300 psi @ 300° F	000000000	00000
3/4	12	2"	7,300 psi @ 72° F	7,300 psi @ 300° F	000000000	00000
3/4	12	3"	7,300 psi @ 72° F	7,300 psi @ 300° F	000000000	00000
3/4	12	4"	7,300 psi @ 72° F	7,300 psi @ 300° F	000000000	00000
1	16	2 5/16"	5,300 psi @ 72° F	5,300 psi @ 300° F	000000000	00000
1	16	3"	5,300 psi @ 72° F	5,300 psi @ 300° F	000000000	00000
1	16	4"	5,300 psi @ 72° F	5,300 psi @ 300° F	000000000	00000

Straight Adapters, Female × Male

For Use With:
NPT × BSPP: Natural Gas, Water
All others: Hydraulic Fluid, Liquid Nitrogen, Natural Gas, Steam, Water
Specifications Met:
NPT × NPT: ANSI/ASME B1/20.1, ANSI/ASME B31.1, ANSI/ASME B31.3
NPT × BSPP and BSPP × NPT: ANSI/ASME B1/20.1, ANSI/ASME B31.1, ANSI/ASME B31.3, ISO 228.1, ISO BS 2779
NPT × BSPT and BSPT × NPT: ANSI/ASME B1/20.1, ANSI/ASME B31.1, ANSI/ASME B31.3, ISO 7.1, ISO BS2.1

NPT Female × NPT Male
Pipe Size	Dash Size	Max. Pressure	Max. Steam Pressure		Each
1/8	02	6,400 psi @ 72° F	6,400 psi @ 300° F	000000000	00000
1/4	04	6,600 psi @ 72° F	6,600 psi @ 300° F	00000000	00000
3/8	06	5,300 psi @ 72° F	5,300 psi @ 300° F	00000000	00000
1/2	08	5,200 psi @ 72° F	5,200 psi @ 300° F	00000000	00000
3/4	12	4,600 psi @ 72° F	4,600 psi @ 300° F	000000000	00000
1	16	4,400 psi @ 72° F	4,400 psi @ 300° F	000000000	00000
NPT Female × BSPT Male
1/8	02	6,100 psi @ 72° F	6,100 psi @ 300° F	0000000	00000
1/4	04	6,200 psi @ 72° F	6,200 psi @ 300° F	0000000	00000
3/8	06	5,000 psi @ 72° F	5,000 psi @ 300° F	0000000	00000
1/2	08	4,600 psi @ 72° F	4,600 psi @ 300° F	0000000	00000
3/4	12	4,300 psi @ 72° F	4,300 psi @ 300° F	0000000	00000
1	16	4,100 psi @ 72° F	4,100 psi @ 300° F	0000000	000000
BSPP Female × NPT Male
1/8	02	6,100 psi @ 72° F	6,100 psi @ 300° F	0000000	00000
1/4	04	6,200 psi @ 72° F	6,200 psi @ 300° F	0000000	00000
3/8	06	5,000 psi @ 72° F	5,000 psi @ 300° F	0000000	00000
1/2	08	4,600 psi @ 72° F	4,600 psi @ 300° F	0000000	00000
3/4	12	4,300 psi @ 72° F	4,300 psi @ 300° F	0000000	00000
1	16	4,100 psi @ 72° F	4,100 psi @ 300° F	0000000	00000
BSPT Female × NPT Male
1/8	02	6,100 psi @ 72° F	6,100 psi @ 300° F	0000000	00000
1/4	04	6,200 psi @ 72° F	6,200 psi @ 300° F	0000000	00000
3/8	06	5,000 psi @ 72° F	5,000 psi @ 300° F	0000000	00000
1/2	08	4,600 psi @ 72° F	4,600 psi @ 300° F	0000000	00000
3/4	12	4,300 psi @ 72° F	4,300 psi @ 300° F	0000000	00000
1	16	4,100 psi @ 72° F	4,100 psi @ 300° F	0000000	00000

Straight Adapters, Male

Straight Adapter, Male Threaded Pipe

For Use With:
NPT × BSPP: Natural Gas, Water
NPT × BSPT: Hydraulic Fluid, Liquid Nitrogen, Natural Gas, Steam, Water
Specifications Met:
NPT × BSPP: ANSI/ASME B1.20.1, ANSI/ASME B31.1, ANSI/ASME B31.3, ISO 228.1, ISO BS 2779
NPT × BSPT: ANSI/ASME B1.20.1, ANSI/ASME B31.1, ANSI/ASME B31.3, ISO 7.1, ISO BS2.1

NPT Male × BSPT Male
Pipe Size	Dash Size	Max. Pressure	Max. Steam Pressure		Each
1/8	02	9,100 psi @ 72° F	9,100 psi @ 300° F	0000000	00000
1/4	04	7,500 psi @ 72° F	7,500 psi @ 300° F	0000000	00000
3/8	06	7,200 psi @ 72° F	7,200 psi @ 300° F	0000000	00000
1/2	08	6,600 psi @ 72° F	6,600 psi @ 300° F	0000000	00000
3/4	12	6,400 psi @ 72° F	6,400 psi @ 300° F	0000000	00000
1	16	4,600 psi @ 72° F	4,600 psi @ 300° F	0000000	00000

Straight Reducing Adapters

For Use With: Hydraulic Fluid, Liquid Nitrogen, Natural Gas, Steam, Water
Specifications Met: ANSI/ASME B1.20.1, ANSI/ASME B31.1, ANSI/ASME B31.3

Pipe Size		Dash Size				316 Stainless Steel
(A)	(B)	(A)	(B)	Max. Pressure	Max. Steam Pressure		Each
NPT Female × NPT Male
1/8	1/16	02	__	6,400 psi @ 72° F	6,400 psi @ 300° F	000000000	000000
1/4	1/8	04	02	6,600 psi @ 72° F	6,600 psi @ 300° F	000000000	00000
3/8	1/8	06	02	5,300 psi @ 72° F	5,300 psi @ 300° F	000000000	00000
3/8	1/4	06	04	5,300 psi @ 72° F	5,300 psi @ 300° F	00000000	00000
1/2	1/8	08	02	5,200 psi @ 72° F	5,200 psi @ 300° F	000000000	00000
1/2	1/4	08	04	5,200 psi @ 72° F	5,200 psi @ 300° F	00000000	00000
1/2	3/8	08	06	5,200 psi @ 72° F	5,200 psi @ 300° F	00000000	00000
3/4	1/4	12	04	4,600 psi @ 72° F	4,600 psi @ 300° F	000000000	00000
3/4	3/8	12	06	4,600 psi @ 72° F	4,600 psi @ 300° F	000000000	00000
3/4	1/2	12	08	4,600 psi @ 72° F	4,600 psi @ 300° F	000000000	00000
1	1/4	16	04	4,400 psi @ 72° F	4,400 psi @ 300° F	000000000	00000
1	1/2	16	08	4,400 psi @ 72° F	4,400 psi @ 300° F	000000000	00000
1	3/4	16	12	4,400 psi @ 72° F	4,400 psi @ 300° F	000000000	00000

Bushing Straight Reducing Adapters

For Use With: Hydraulic Fluid, Liquid Nitrogen, Natural Gas, Steam, Water
Specifications Met: ANSI/ASME B1.20.1, ANSI/ASME B31.1, ANSI/ASME B31.3

Pipe Size		Dash Size				316 Stainless Steel
(A)	(B)	(A)	(B)	Max. Pressure	Max. Steam Pressure		Each
NPT Male × NPT Female
1/8	1/16	02	__	6,400 psi @ 72° F	6,400 psi @ 300° F	000000000	00000
1/4	1/16	04	__	7,500 psi @ 72° F	7,500 psi @ 300° F	000000000	00000
1/4	1/8	04	02	6,000 psi @ 72° F	6,000 psi @ 300° F	000000000	0000
3/8	1/8	06	02	6,400 psi @ 72° F	6,400 psi @ 300° F	000000000	00000
3/8	1/4	06	04	5,300 psi @ 72° F	5,300 psi @ 300° F	000000000	00000
1/2	1/8	08	02	6,600 psi @ 72° F	6,600 psi @ 300° F	000000000	00000
1/2	1/4	08	04	6,400 psi @ 72° F	6,400 psi @ 300° F	000000000	00000
1/2	3/8	08	06	4,600 psi @ 72° F	4,600 psi @ 300° F	000000000	00000
3/4	1/4	12	04	6,400 psi @ 72° F	6,400 psi @ 300° F	000000000	00000
3/4	3/8	12	06	5,300 psi @ 72° F	5,300 psi @ 300° F	000000000	00000
3/4	1/2	12	08	4,900 psi @ 72° F	4,900 psi @ 300° F	000000000	00000
1	1/4	16	04	5,300 psi @ 72° F	5,300 psi @ 300° F	000000000	00000
1	3/8	16	06	5,300 psi @ 72° F	5,300 psi @ 300° F	000000000	00000
1	1/2	16	08	4,900 psi @ 72° F	4,900 psi @ 300° F	000000000	00000
1	3/4	16	12	4,600 psi @ 72° F	4,600 psi @ 300° F	000000000	00000
1 1/4	1	20	16	4,400 psi @ 72° F	4,400 psi @ 300° F	000000000	00000
1 1/2	1	24	16	4,400 psi @ 72° F	4,400 psi @ 300° F	000000000	00000
1 1/2	1 1/4	24	20	5,000 psi @ 72° F	5,000 psi @ 300° F	000000000	00000
2	1	32	16	3,900 psi @ 72° F	3,900 psi @ 300° F	000000000	000000
2	1 1/2	32	24	3,900 psi @ 72° F	3,900 psi @ 300° F	000000000	000000

Straight Reducers, Female

For Use With: Hydraulic Fluid, Liquid Nitrogen, Natural Gas, Steam, Water
Specifications Met: ANSI/ASME B1.20.1, ANSI/ASME B31.1, ANSI/ASME B31.3

Pipe Size		Dash Size				316 Stainless Steel
(A)	(B)	(A)	(B)	Max. Pressure	Max. Steam Pressure		Each
NPT Female
1/8	1/16	02	__	6,400 psi @ 72° F	6,400 psi @ 300° F	000000000	000000
1/4	1/8	04	02	6,600 psi @ 72° F	6,600 psi @ 300° F	000000000	00000
3/8	1/8	06	02	5,300 psi @ 72° F	5,300 psi @ 300° F	000000000	00000
3/8	1/4	06	04	5,300 psi @ 72° F	5,300 psi @ 300° F	00000000	00000
1/2	1/8	08	02	5,200 psi @ 72° F	5,200 psi @ 300° F	000000000	00000
1/2	1/4	08	04	5,200 psi @ 72° F	5,200 psi @ 300° F	00000000	00000
1/2	3/8	08	06	5,200 psi @ 72° F	5,200 psi @ 300° F	00000000	00000
3/4	1/4	12	04	4,600 psi @ 72° F	4,600 psi @ 300° F	000000000	00000
3/4	1/2	12	08	4,600 psi @ 72° F	4,600 psi @ 300° F	000000000	00000
1	1/2	16	08	4,400 psi @ 72° F	4,400 psi @ 300° F	000000000	00000
1	3/4	16	12	4,400 psi @ 72° F	4,400 psi @ 300° F	000000000	00000

Straight Reducers, Male

For Use With: Hydraulic Fluid, Liquid Nitrogen, Natural Gas, Steam, Water
Specifications Met: ANSI/ASME B1.20.1, ANSI/ASME B31.1, ANSI/ASME B31.3

Pipe Size		Dash Size				316 Stainless Steel
(A)	(B)	(A)	(B)	Max. Pressure	Max. Steam Pressure		Each
NPT Male
1/8	1/16	02	__	9,100 psi @ 72° F	9,100 psi @ 300° F	000000000	00000
1/4	1/8	04	02	7,500 psi @ 72° F	7,500 psi @ 300° F	00000000	0000
3/8	1/8	06	02	7,200 psi @ 72° F	7,200 psi @ 300° F	00000000	00000
3/8	1/4	06	04	7,200 psi @ 72° F	7,200 psi @ 300° F	000000000	00000
1/2	1/8	08	02	6,600 psi @ 72° F	6,600 psi @ 300° F	00000000	00000
1/2	1/4	08	04	6,600 psi @ 72° F	6,600 psi @ 300° F	000000000	00000
1/2	3/8	08	06	6,600 psi @ 72° F	6,600 psi @ 300° F	000000000	00000
3/4	1/4	12	04	7,300 psi @ 72° F	7,300 psi @ 300° F	000000000	00000
3/4	1/2	12	08	7,300 psi @ 72° F	7,300 psi @ 300° F	000000000	00000
1	1/2	16	08	5,300 psi @ 72° F	5,300 psi @ 300° F	000000000	00000
1	3/4	16	12	5,300 psi @ 72° F	5,300 psi @ 300° F	000000000	00000

90° Elbow Connectors, Female

For Use With: Hydraulic Fluid, Liquid Nitrogen, Natural Gas, Steam, Water
Specifications Met: ANSI/ASME B1.20.1, ANSI/ASME B31.1, ANSI/ASME B31.3

				316 Stainless Steel
Pipe Size	Dash Size	Max. Pressure	Max. Steam Pressure		Each
NPT Female
1/16	__	7,000 psi @ 72° F	7,000 psi @ 300° F	000000000	000000
1/8	02	5,500 psi @ 72° F	5,500 psi @ 300° F	00000000	00000
1/4	04	5,600 psi @ 72° F	5,600 psi @ 300° F	000000000	00000
3/8	06	5,000 psi @ 72° F	5,000 psi @ 300° F	00000000	00000
1/2	08	4,500 psi @ 72° F	4,500 psi @ 300° F	000000000	00000
3/4	12	4,600 psi @ 72° F	4,600 psi @ 300° F	000000000	00000
1	16	4,400 psi @ 72° F	4,400 psi @ 300° F	000000000	00000

90° Elbow Connectors, Male

For Use With: Hydraulic Fluid, Liquid Nitrogen, Natural Gas, Steam, Water
Specifications Met: ANSI/ASME B1.20.1, ANSI/ASME B31.1, ANSI/ASME B31.3

				316 Stainless Steel
Pipe Size	Dash Size	Max. Pressure	Max. Steam Pressure		Each
NPT Male
1/8	02	9,100 psi @ 72° F	9,100 psi @ 300° F	00000000	000000
1/4	04	7,500 psi @ 72° F	7,500 psi @ 300° F	00000000	00000
3/8	06	7,200 psi @ 72° F	7,200 psi @ 300° F	000000000	00000
1/2	08	5,800 psi @ 72° F	5,800 psi @ 300° F	000000000	00000

90° Elbow Adapters

For Use With: Hydraulic Fluid, Liquid Nitrogen, Natural Gas, Steam, Water
Specifications Met: ANSI/ASME B1.20.1, ANSI/ASME B31.1, ANSI/ASME B31.3

				316 Stainless Steel
Pipe Size	Dash Size	Max. Pressure	Max. Steam Pressure		Each
NPT Female × NPT Male
1/16	__	7,000 psi @ 72° F	7,000 psi @ 300° F	000000000	000000
1/8	02	5,500 psi @ 72° F	5,500 psi @ 300° F	00000000	00000
1/4	04	5,600 psi @ 72° F	5,600 psi @ 300° F	000000000	00000
3/8	06	5,000 psi @ 72° F	5,000 psi @ 300° F	00000000	00000
1/2	08	4,500 psi @ 72° F	4,500 psi @ 300° F	000000000	00000
3/4	12	4,600 psi @ 72° F	4,600 psi @ 300° F	000000000	00000
1	16	4,400 psi @ 72° F	4,400 psi @ 300° F	000000000	000000

90° Elbow Reducing Adapters

For Use With: Hydraulic Fluid, Liquid Nitrogen, Natural Gas, Steam, Water
Specifications Met: ANSI/ASME B1.20.1, ANSI/ASME B31.1, ANSI/ASME B31.3

Pipe Size		Dash Size				316 Stainless Steel
(A)	(B)	(A)	(B)	Max. Pressure	Max. Steam Pressure		Each
NPT Female × NPT Male
1/16	1/8	__	02	7,000 psi @ 72° F	7,000 psi @ 300° F	000000000	000000
1/16	1/4	__	04	7,000 psi @ 72° F	7,000 psi @ 300° F	000000000	00000
1/16	3/8	__	06	7,000 psi @ 72° F	7,000 psi @ 300° F	000000000	00000
1/8	1/16	02	__	6,500 psi @ 72° F	6,500 psi @ 300° F	000000000	00000
1/8	1/4	2	4	5,500 psi @ 72° F	5,500 psi @ 300° F	000000000	00000
1/8	3/8	2	6	5,500 psi @ 72° F	5,500 psi @ 300° F	000000000	00000
1/8	1/2	2	8	5,500 psi @ 72° F	5,500 psi @ 300° F	000000000	00000
1/4	3/8	4	6	5,600 psi @ 72° F	5,600 psi @ 300° F	000000000	00000
1/4	1/2	4	8	5,600 psi @ 72° F	5,600 psi @ 300° F	000000000	00000
3/8	1/2	6	8	5,000 psi @ 72° F	5,000 psi @ 300° F	000000000	00000

45° Elbow Adapters

For Use With: Hydraulic Fluid, Liquid Nitrogen, Natural Gas, Steam, Water
Specifications Met: ANSI/ASME B1.20.1, ANSI/ASME B31.1, ANSI/ASME B31.3

				316 Stainless Steel
Pipe Size	Dash Size	Max. Pressure	Max. Steam Pressure		Each
NPT Female × NPT Male
1/8	02	5,500 psi @ 72° F	5,500 psi @ 300° F	000000000	000000
1/4	04	5,600 psi @ 72° F	5,600 psi @ 300° F	000000000	00000
3/8	06	5,000 psi @ 72° F	5,000 psi @ 300° F	000000000	00000
1/2	08	4,500 psi @ 72° F	4,500 psi @ 300° F	000000000	000000

Tee Connectors, Female

For Use With: Hydraulic Fluid, Liquid Nitrogen, Natural Gas, Steam, Water
Specifications Met: ANSI/ASME B1.20.1, ANSI/ASME B31.1, ANSI/ASME B31.3

				316 Stainless Steel
Pipe Size	Dash Size	Max. Pressure	Max. Steam Pressure		Each
NPT Female
1/16	__	7,000 psi @ 72° F	7,000 psi @ 300° F	000000000	000000
1/8	02	5,500 psi @ 72° F	5,500 psi @ 300° F	00000000	00000
1/4	04	5,600 psi @ 72° F	5,600 psi @ 300° F	000000000	00000
3/8	06	5,000 psi @ 72° F	5,000 psi @ 300° F	00000000	00000
1/2	08	4,500 psi @ 72° F	4,500 psi @ 300° F	000000000	00000
3/4	12	7,300 psi @ 72° F	7,300 psi @ 300° F	000000000	00000
1	16	5,300 psi @ 72° F	5,300 psi @ 300° F	00000000	000000

Tee Connectors, Male

For Use With: Hydraulic Fluid, Liquid Nitrogen, Natural Gas, Steam, Water
Specifications Met: ANSI/ASME B1.20.1, ANSI/ASME B31.1, ANSI/ASME B31.3

				316 Stainless Steel
Pipe Size	Dash Size	Max. Pressure	Max. Steam Pressure		Each
NPT Male
1/16	__	10,000 psi @ 72° F	10,000 psi @ 300° F	000000000	000000
1/8	02	9,700 psi @ 72° F	9,700 psi @ 300° F	000000000	00000
1/4	04	8,000 psi @ 72° F	8,000 psi @ 300° F	000000000	00000
3/8	06	7,600 psi @ 72° F	7,600 psi @ 300° F	000000000	00000
1/2	08	6,200 psi @ 72° F	6,200 psi @ 300° F	000000000	00000

Inline Tee Adapters

For Use With: Hydraulic Fluid, Liquid Nitrogen, Natural Gas, Steam, Water
Specifications Met: ANSI/ASME B1.20.1, ANSI/ASME B31.1, ANSI/ASME B31.3

				316 Stainless Steel
Pipe Size	Dash Size	Max. Pressure	Max. Steam Pressure		Each
NPT Female × NPT Male
1/16	__	7,000 psi @ 72° F	7,000 psi @ 300° F	000000000	000000
1/8	02	5,500 psi @ 72° F	5,500 psi @ 300° F	000000000	00000
1/4	04	5,600 psi @ 72° F	5,600 psi @ 300° F	000000000	00000
3/8	06	5,000 psi @ 72° F	5,000 psi @ 300° F	000000000	00000
1/2	08	4,500 psi @ 72° F	4,500 psi @ 300° F	000000000	00000

Right-Angle Tee Adapters

For Use With: Hydraulic Fluid, Liquid Nitrogen, Natural Gas, Steam, Water
Specifications Met: ANSI/ASME B1.20.1, ANSI/ASME B31.1, ANSI/ASME B31.3

				316 Stainless Steel
Pipe Size	Dash Size	Max. Pressure	Max. Steam Pressure		Each
NPT Female × NPT Male
1/16	__	7,000 psi @ 72° F	7,000 psi @ 300° F	000000000	000000
1/8	02	5,500 psi @ 72° F	5,500 psi @ 300° F	00000000	00000
1/4	04	5,600 psi @ 72° F	5,600 psi @ 300° F	000000000	00000
3/8	06	5,000 psi @ 72° F	5,000 psi @ 300° F	00000000	00000
1/2	08	4,500 psi @ 72° F	4,500 psi @ 300° F	000000000	00000

Cross Connectors

Specifications Met: ANSI/ASME B1.20.1, ANSI/ASME B31.1, ANSI/ASME B31.3
For Use With: Hydraulic Fluid, Liquid Nitrogen, Natural Gas, Steam, Water

				316 Stainless Steel
Pipe Size	Dash Size	Max. Pressure	Max. Steam Pressure		Each
NPT Female
1/16	__	7,000 psi @ 72° F	7,000 psi @ 300° F	000000000	000000
1/8	02	5,500 psi @ 72° F	5,500 psi @ 300° F	00000000	00000
1/4	04	5,600 psi @ 72° F	5,600 psi @ 300° F	000000000	00000
3/8	06	5,000 psi @ 72° F	5,000 psi @ 300° F	00000000	00000
1/2	08	4,500 psi @ 72° F	4,500 psi @ 300° F	000000000	000000
3/4	12	4,600 psi @ 72° F	4,600 psi @ 300° F	000000000	000000
1	16	4,400 psi @ 72° F	4,400 psi @ 300° F	000000000	000000

Caps

For Use With: Hydraulic Fluid, Liquid Nitrogen, Natural Gas, Steam, Water
Specifications Met: ANSI/ASME B1.20.1, ANSI/ASME B31.1, ANSI/ASME B31.3

				316 Stainless Steel
Pipe Size	Dash Size	Max. Pressure	Max. Steam Pressure		Each
NPT Female
1/16	__	7,500 psi @ 72° F	7,500 psi @ 300° F	000000000	000000
1/8	02	6,400 psi @ 72° F	6,400 psi @ 300° F	00000000	0000
1/4	04	6,600 psi @ 72° F	6,600 psi @ 300° F	00000000	00000
3/8	06	5,300 psi @ 72° F	5,300 psi @ 300° F	00000000	00000
1/2	08	5,200 psi @ 72° F	5,200 psi @ 300° F	00000000	00000
3/4	12	4,600 psi @ 72° F	4,600 psi @ 300° F	000000000	00000
1	16	4,400 psi @ 72° F	4,400 psi @ 300° F	000000000	00000

Plugs with Hex Drive

For Use With: Hydraulic Fluid, Liquid Nitrogen, Natural Gas, Steam, Water
Specifications Met: ANSI/ASME B1.20.1, ANSI/ASME B31.1, ANSI/ASME B31.3

					316 Stainless Steel
Pipe Size	Dash Size	Drive Size	Max. Pressure	Max. Steam Pressure		Each
NPT Male
1/16	__	5/32"	10,000 psi @ 72° F	10,000 psi @ 300° F	000000000	000000
1/8	02	3/16"	9,100 psi @ 72° F	9,100 psi @ 300° F	000000000	0000
1/4	04	1/4"	7,500 psi @ 72° F	7,500 psi @ 300° F	000000000	00000
3/8	06	5/16"	7,200 psi @ 72° F	7,200 psi @ 300° F	000000000	00000

Plugs with External Hex Drive

For Use With: Hydraulic Fluid, Liquid Nitrogen, Natural Gas, Steam, Water
Specifications Met: ANSI/ASME B1.20.1, ANSI/ASME B31.1, ANSI/ASME B31.3

					316 Stainless Steel
Pipe Size	Dash Size	Plug Construction	Max. Pressure	Max. Steam Pressure		Each
NPT Male
1/16	__	Solid	10,000 psi @ 72° F	10,000 psi @ 300° F	000000000	00000
1/8	02	Solid	9,700 psi @ 72° F	9,700 psi @ 300° F	00000000	0000
1/4	04	Solid	8,000 psi @ 72° F	8,000 psi @ 300° F	00000000	0000
3/8	06	Solid	7,600 psi @ 72° F	7,600 psi @ 300° F	00000000	00000
1/2	08	Solid	7,000 psi @ 72° F	7,000 psi @ 300° F	000000000	00000
3/4	12	Solid	7,300 psi @ 72° F	7,300 psi @ 300° F	000000000	00000
1	16	Solid	5,300 psi @ 72° F	5,300 psi @ 300° F	000000000	00000

Through-Wall Fittings for High-Vacuum Chambers

For Use With: See table
Environment Temperature Range: 32° to 300° F
Process Temperature Range: -325° to 995° F
Tubing: Use with 304/304L or 316/316L stainless steel
Specifications Met: See table

Also known as feedthroughs, these fittings transfer liquids, cryogenic liquids, or gasses into high-vacuum chambers for coating, cooling, and leak-testing applications without losing vacuum pressure. Consisting of high-vacuum fittings, metal tubing, and Yor-lok tube fittings, these complete assemblies come ready to install. The quick-clamp (KF) or flanged (CF) high-vacuum fittings form a tight seal on chamber walls. On each end, the Yor-lok fittings include a nut and two sleeves that grip your system’s stainless steel tubing for a leak- and gas-tight connection. The entire assembly is stainless steel so it resists rusting. Not for use in pressure applications.

Quick-clamp fittings meet ISO (International Standards Organization) 2861, which specifies the dimensions of quick-clamp high-vacuum fittings, clamps, and rings to ensure vacuum tightness. These fittings require a clamp and ring (each sold separately) to complete the connection.

Flanged fittings require a gasket and bolt kit (each sold separately) to complete the connection.

Quick-Clamp (ISO-KF) Chamber Connection with Yor-Lok Fittings

Quick Clamp Shown Installed

Quick Clamp

		For Tube
Flange OD	Trade Number	OD	Wall Thick.	Lg.	Max. Vacuum	Material	Specifications Met		Each
For Use With Liquid Helium, Liquid Methane, Liquid Nitrogen, Liquid Oxygen
1.18"	16	1/4"	0.028"-0.095"	9"	1 × 10 ^-8 torr @ 72° F	304 Stainless Steel	ISO 2861	0000000	0000000
1.57"	25	1/4"	0.028"-0.095"	9"	1 × 10 ^-8 torr @ 72° F	304 Stainless Steel	ISO 2861	0000000	000000
2.16"	40	1/4"	0.028"-0.095"	9"	1 × 10 ^-8 torr @ 72° F	304 Stainless Steel	ISO 2861	0000000	000000
2.95"	50	1/4"	0.028"-0.095"	9"	1 × 10 ^-8 torr @ 72° F	304 Stainless Steel	ISO 2861	0000000	000000

Flanged (CF) Chamber Connection with Yor-Lok Fittings

Flanged Shown Installed

Flanged

			Bolt Hole		For Tube
Flange OD	Trade Number	Bolt Circle Dia.	Dia.	No. of	OD	Wall Thick.	Lg.	Max. Vacuum	Material		Each
For Use With Liquid Helium, Liquid Methane, Liquid Nitrogen, Liquid Oxygen
1 21/64"	16	1 1/16"	11/64"	6	1/4"	0.028"-0.095"	9"	1 × 10 ^-13 torr @ 72° F	304 Stainless Steel	0000000	0000000
2 3/4"	40	2 5/16"	17/64"	6	1/4"	0.028"-0.095"	9"	1 × 10 ^-13 torr @ 72° F	304 Stainless Steel	0000000	000000

Clamps for Quick-Clamp (ISO-KF) Chamber Connection

Clamp with Wing Nut

With Wing Nut
For Flange OD	Trade Number	Material	Max. Vacuum		Each
1.18"	10	Aluminum	1 × 10 ^-7 torr @ 72° F	00000000	00000
1.18"	10, 16	Aluminum	1 × 10 ^-7 torr @ 72° F	00000000	0000
1.18"	16	Aluminum	1 × 10 ^-7 torr @ 72° F	00000000	0000
1.57"	25	Aluminum	1 × 10 ^-7 torr @ 72° F	0000000	00000
2.16"	40	Aluminum	1 × 10 ^-7 torr @ 72° F	0000000	00000
2.95"	50	Aluminum	1 × 10 ^-7 torr @ 72° F	0000000	00000

Rings for Quick-Clamp (ISO-KF) Chamber Connection

Ring

		Material
For Flange OD	Trade Number	O-Ring	Inner Ring	Max. Vacuum		Each
1.18"	16	Fluoroelastomer Rubber	304 Stainless Steel	1 × 10 ^-7 torr @ 72° F	00000000	00000
1.57"	25	Fluoroelastomer Rubber	304 Stainless Steel	1 × 10 ^-7 torr @ 72° F	0000000	0000
2.16"	40	Fluoroelastomer Rubber	304 Stainless Steel	1 × 10 ^-7 torr @ 72° F	0000000	00000
2.95"	50	Fluoroelastomer Rubber	304 Stainless Steel	1 × 10 ^-7 torr @ 72° F	0000000	00000

Gaskets for Flanged (CF) Chamber Connection

Gasket

For Flange OD	Gasket Material	Specifications Met		Each
1 21/64"	Copper	ASTM F68	0000000	00000

Bolt Kits for Flanged (CF) Chamber Connection

Bolt Kit

For Flange OD	For Trade Number	Bolt Dia.	Thread Size	No. of Bolts Included	No. of Nuts Included	No. of Washers Included	Bolt Material		Each
1 21/64"	16	0.167"	8"-32	6	6	12	18-8 Stainless Steel	0000000	00000
2 3/4"	40	1/4"	1/4"-28	6	6	12	18-8 Stainless Steel	0000000	00000

Pipeline Fluid Blockers

Also known as paddle blinds, these fit between two flanges to temporarily block the flow while you work downstream.

304 stainless steel blinds are more corrosion resistant than steel blinds.

PTFE-Coated 304 Stainless Steel

Specifications Met: ASTM D4894, FDA Compliant 21 CFR 177.1550

					Handle
For Pipe Size	OD	For Orifice Flange ANSI Class	Max. Pressure	Thick.	Lg.	Wd.	Temp. Range, °F		Each
1/2	1 7/8"	150	150 psi @ 250° F	1/8"	2"	3/4"	-100° to 400°	0000000	000000
3/4	2 1/4"	150	150 psi @ 250° F	1/8"	2"	3/4"	-100° to 400°	0000000	00000

Terms and Conditions and Privacy Policy

How to Identify and Measure Fittings

About Backflow-Prevention Valves

Precision Extreme-Pressure StainlessSteel Threaded Pipe Fittings

Through-Wall Fittings for High-Vacuum Chambers

Pipeline Fluid Blockers

Precision Extreme-Pressure Stainless
Steel Threaded Pipe Fittings