Couplings for Liquid Nitrogen

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Acetic Acid (White Vinegar)

Acetic Acid (White Vinegar) (5% Concentration)

Acetic Acid (White Vinegar) (10% Concentration)

Acetic Acid (White Vinegar) (75% Concentration)

Dichlorotetrafluoroethane

Hydraulic Fluid (Petroleum Based)

Hydrochloric Acid

Hydrochloric Acid (10% Concentration)

Hydrochloric Acid (25% Concentration)

Hydrochloric Acid (30% Concentration)

Hydrochloric Acid (37% Concentration)

Liquid Carbon Dioxide

Methanol (Methyl Alcohol)

Methyl Bromide

Methyl Chloride

Methyl Ethyl Ketone (MEK)

Nitric Acid (10% Concentration)

Nitric Acid (65% Concentration)

Phosphoric Acid (70% Concentration)

Phosphoric Acid (85% Concentration)

Salt Water (30% Concentration)

Silane

Silicon Tetrafluoride

Sludge

Soap Solutions

Sodium Carbonate (Soda Ash)

Sodium Carbonate (Soda Ash) (20% Concentration in Water)

Sodium Chloride

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Sodium Hydroxide (Caustic Soda) (50% Concentration)

Sodium Hypochlorite (Bleach)

Sulfuric Acid (30% Concentration)

Sulfuric Acid (70% Concentration)

Sulfuric Acid (75% Concentration)

Sulfuric Acid (80% Concentration)

Sulfuric Acid (95% Concentration)

Trifluoroethane

Tungsten Hexafluoride

Connects To

Body Shape

Dash Size

Maximum Steam Pressure @ Temperature

Length

Hex Width

Specifications Met

Fabrication

Thread Size

Tube OD

REACH

Export Control Classification Number (ECCN)

2B999

EAR99

DFARS Specialty Metals

Exempt

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304-304L Stainless Steel

316-316L Stainless Steel

RoHS

Fitting Material

224 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.

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.

Union connectors separate into three pieces so you can access your line without unthreading pipe connections.

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. UN/UNF (SAE Straight) threads are also known as O-ring boss threads; the male threads have a gasket to prevent leaks.

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: ASME B1.20.1, ASME B31.1, 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:
3/4 Pipe Size: ASME B1.20.1, ASME B31.3, ASTM A276, ASTM A479
All other sizes: ASME B1.20.1, ASME B31.1, 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	00000
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
3/4	12	7,300 psi @ 72° F	7,300 psi @ 300° F	00000000	00000
1	16	4,600 psi @ 72° F	4,600 psi @ 300° F	000000000	00000

Straight Connectors with Hex, Male

For Use With: Hydraulic Fluid, Liquid Nitrogen, Natural Gas, Steam, Water
Specifications Met: ASME B1.20.1, ASME B31.1, 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	__	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	00000
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

Union Straight Connectors

Assembled View

Exploded View

For Use With: Hydraulic Fluid, Liquid Nitrogen, Natural Gas, Steam, Water
Specifications Met: ASME B1.20.1, ASME B31.1, ASME B31.3, ASTM A182, ASTM 276, ASTM A479

				Hex Width		316 Stainless Steel
Pipe Size	Dash Size	Max. Pressure	Max. Steam Pressure	(A)	(B)		Each
NPT Female
1/4	04	6,600 psi @ 72° F	6,600 psi @ 300° F	1 3/8"	1 3/16"	000000000	000000
3/8	06	5,300 psi @ 72° F	5,300 psi @ 300° F	1 1/2"	1 5/16"	000000000	00000
1/2	08	4,900 psi @ 72° F	4,900 psi @ 300° F	1 3/4"	1 5/8"	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: ASME B1.20.1, ASME B31.1, ASME B31.3
NPT × BSPP: ASME B1.20.1, ASME B31.1, ASME B31.3, ASTM A276, ASTM A479, ISO 228.1, ISO 228.2, ISO BS 2779
BSPP × NPT: ASME B1.20.1, ASME B31.1, ASME B31.3, ISO 228.1, ISO 228.2, ISO BS 2779
NPT × BSPT: ASME B1.20.1, ASME B31.1, ASME B31.3, ISO 7.1, ISO BS2.1
BSPT × NPT: ASME B1.20.1, ASME B31.1, 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	000000
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	000000
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	000000

Straight Adapters, Male

Straight Adapter, Male Threaded Pipe

UN/UNF
(SAE Straight) Male
Threads with Gasket

For Use With:
NPT × BSPP: Natural Gas, Water
NPT × BSPT and UN/UNF (SAE Straight) Male × NPT Male: Hydraulic Fluid, Liquid Nitrogen, Natural Gas, Steam, Water
Specifications Met:
NPT × BSPP: ASME B1.20.1, ASME B31.1, ASME B31.3, ASTM A276, ASTM A479, ISO 228.1, ISO 228.2, ISO BS 2779
NPT × BSPT: ASME B1.20.1, ASME B31.1, ASME B31.3, ISO 7.1, ISO BS2.1
UN/UNF (SAE Straight) Male × NPT Male: ASME B1.20.1, ASME B31.1, ASME B31.3, ASTM A182, ASTM A276, ASTM A479, SAE J1926

NPT Male × BSPT Male
Pipe Size (A)	Thread Size (A)	Dash Size (A)	Pipe Size (B)	Dash Size (B)	Max. Pressure	Max. Steam Pressure		Each
1/8	__	02	1/8	02	9,100 psi @ 72° F	9,100 psi @ 300° F	0000000	000000
1/4	__	04	1/4	04	7,500 psi @ 72° F	7,500 psi @ 300° F	0000000	00000
3/8	__	06	3/8	06	7,200 psi @ 72° F	7,200 psi @ 300° F	0000000	00000
1/2	__	08	1/2	08	6,600 psi @ 72° F	6,600 psi @ 300° F	0000000	00000
3/4	__	12	3/4	12	6,400 psi @ 72° F	6,400 psi @ 300° F	0000000	00000
1	__	16	1	16	4,600 psi @ 72° F	4,600 psi @ 300° F	0000000	00000
UN/UNF (SAE Straight) Male × NPT Male
__	3/4"-16	08	1/2	08	4,500 psi @ 72° F	4,500 psi @ 300° F	000000000	00000
__	1 1/16"-12	12	3/4	12	3,600 psi @ 72° F	3,600 psi @ 300° F	000000000	00000
__	1 5/16"-12	18	1	18	2,900 psi @ 72° F	2,900 psi @ 300° F	000000000	00000

Straight Reducing Adapters

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

Pipe Size		Dash Size					316 Stainless Steel
(A)	(B)	(A)	(B)	Max. Pressure	Max. Steam Pressure	Specifications Met		Each
NPT Male × NPT Female
1/8	1/16	02	__	6,400 psi @ 72° F	6,400 psi @ 300° F	ASME B1.20.1, ASME B31.1, ASME B31.3	000000000	00000
1/4	1/16	04	__	7,500 psi @ 72° F	7,500 psi @ 300° F	ASME B1.20.1, ASME B31.1, ASME B31.3	000000000	00000
1/4	1/8	04	02	6,000 psi @ 72° F	6,000 psi @ 300° F	ASME B1.20.1, ASME B31.1, ASME B31.3	000000000	00000
3/8	1/8	06	02	6,400 psi @ 72° F	6,400 psi @ 300° F	ASME B1.20.1, ASME B31.1, ASME B31.3	000000000	00000
3/8	1/4	06	04	5,300 psi @ 72° F	5,300 psi @ 300° F	ASME B1.20.1, ASME B31.1, ASME B31.3	000000000	00000
1/2	1/8	08	02	6,600 psi @ 72° F	6,600 psi @ 300° F	ASME B1.20.1, ASME B31.1, ASME B31.3	000000000	00000
1/2	1/4	08	04	6,400 psi @ 72° F	6,400 psi @ 300° F	ASME B1.20.1, ASME B31.1, ASME B31.3	000000000	00000
1/2	3/8	08	06	4,600 psi @ 72° F	4,600 psi @ 300° F	ASME B1.20.1, ASME B31.1, ASME B31.3	000000000	00000
3/4	1/4	12	04	6,400 psi @ 72° F	6,400 psi @ 300° F	ASME B1.20.1, ASME B31.1, ASME B31.3	000000000	00000
3/4	3/8	12	06	5,300 psi @ 72° F	5,300 psi @ 300° F	ASME B1.20.1, ASME B31.1, ASME B31.3	000000000	00000
3/4	1/2	12	08	4,900 psi @ 72° F	4,900 psi @ 300° F	ASME B1.20.1, ASME B31.1, ASME B31.3	000000000	00000
1	1/4	16	04	5,300 psi @ 72° F	5,300 psi @ 300° F	ASME B1.20.1, ASME B31.1, ASME B31.3	000000000	00000
1	3/8	16	06	5,300 psi @ 72° F	5,300 psi @ 300° F	ASME B1.20.1, ASME B31.1, ASME B31.3	000000000	00000
1	1/2	16	08	4,900 psi @ 72° F	4,900 psi @ 300° F	ASME B1.20.1, ASME B31.1, ASME B31.3	000000000	00000
1	3/4	16	12	4,600 psi @ 72° F	4,600 psi @ 300° F	ASME B1.20.1, ASME B31.1, ASME B31.3	000000000	00000
1 1/4	1	20	16	4,400 psi @ 72° F	4,400 psi @ 300° F	ASME B1.20.1, ASME B31.1, ASME B31.3	000000000	00000
1 1/2	1/2	24	08	4,900 psi @ 72° F	4,900 psi @ 300° F	ASME B1.20.1, ASME B31.1, ASME B31.3, ASTM A182, ASTM A276, ASTM A479	000000000	000000
1 1/2	1	24	16	4,400 psi @ 72° F	4,400 psi @ 300° F	ASME B1.20.1, ASME B31.1, ASME B31.3	000000000	00000
1 1/2	1 1/4	24	20	5,000 psi @ 72° F	5,000 psi @ 300° F	ASME B1.20.1, ASME B31.1, ASME B31.3	000000000	000000
2	1/2	32	08	4,900 psi @ 72° F	4,900 psi @ 300° F	ASME B1.20.1, ASME B31.1, ASME B31.3, ASTM A182, ASTM A276, ASTM A479	000000000	000000
2	3/4	32	12	4,600 psi @ 72° F	4,600 psi @ 300° F	ASME B1.20.1, ASME B31.1, ASME B31.3, ASTM A182, ASTM A276, ASTM A479	000000000	000000
2	1	32	16	3,900 psi @ 72° F	3,900 psi @ 300° F	ASME B1.20.1, ASME B31.1, ASME B31.3	000000000	000000
2	1 1/2	32	24	3,900 psi @ 72° F	3,900 psi @ 300° F	ASME B1.20.1, ASME B31.1, ASME B31.3	000000000	000000

Straight Reducers, Female

For Use With: Hydraulic Fluid, Liquid Nitrogen, Natural Gas, Steam, Water
Specifications Met: ASME B1.20.1, ASME B31.1, 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: ASME B1.20.1, ASME B31.1, 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	000000
1/4	1/8	04	02	7,500 psi @ 72° F	7,500 psi @ 300° F	00000000	00000
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: ASME B1.20.1, ASME B31.1, 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: ASME B31.3, ASME B1.20.1, ASME B31.1

				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
3/4	12	6,400 psi @ 72° F	6,400 psi @ 300° F	000000000	000000
1	16	4,600 psi @ 72° F	4,600 psi @ 300° F	000000000	000000

90° Elbow Adapters

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

Pipe Size		Dash Size					316 Stainless Steel
(A)	(B)	(A)	(B)	Max. Pressure	Max. Steam Pressure	Specifications Met		Each
NPT Female × NPT Male
1/8	1/16	02	__	6,500 psi @ 72° F	6,500 psi @ 300° F	ASME B1.20.1, ASME B31.1, ASME B31.3	000000000	000000
1/8	1/4	2	4	5,500 psi @ 72° F	5,500 psi @ 300° F	ASME B1.20.1, ASME B31.1, ASME B31.3	000000000	00000
1/8	3/8	2	6	5,500 psi @ 72° F	5,500 psi @ 300° F	ASME B1.20.1, ASME B31.1, ASME B31.3	000000000	00000
1/8	1/2	2	8	5,500 psi @ 72° F	5,500 psi @ 300° F	ASME B1.20.1, ASME B31.1, ASME B31.3	000000000	000000
1/4	1/8	04	02	6,600 psi @ 72° F	6,600 psi @ 300° F	ASME B1.20.1, ASME B31.1, ASME B31.3, ASTM A182, ASTM A276, ASTM A479	000000000	00000
1/4	3/8	4	6	5,600 psi @ 72° F	5,600 psi @ 300° F	ASME B1.20.1, ASME B31.1, ASME B31.3	000000000	000000
1/4	1/2	4	8	5,600 psi @ 72° F	5,600 psi @ 300° F	ASME B1.20.1, ASME B31.1, ASME B31.3	000000000	000000
3/8	1/4	06	04	5,300 psi @ 72° F	5,300 psi @ 300° F	ASME B1.20.1, ASME B31.1, ASME B31.3, ASTM A182, ASTM A276, ASTM A479	000000000	00000
3/8	1/2	6	8	5,000 psi @ 72° F	5,000 psi @ 300° F	ASME B1.20.1, ASME B31.1, ASME B31.3	000000000	000000
1/2	1/4	08	04	4,900 psi @ 72° F	4,900 psi @ 300° F	ASME B1.20.1, ASME B31.1, ASME B31.3, ASTM A182, ASTM A276, ASTM A479	000000000	00000
1/2	3/8	08	06	4,900 psi @ 72° F	4,900 psi @ 300° F	ASME B1.20.1, ASME B31.1, ASME B31.3, ASTM A182, ASTM A276, ASTM A479	000000000	00000
1/2	3/4	08	12	4,500 psi @ 72° F	4,500 psi @ 300° F	ASME B1.20.1, ASME B31.1, ASME B31.3	000000000	000000
3/4	1	12	16	3,500 psi @ 72° F	3,500 psi @ 300° F	ASME B1.20.1, ASME B31.1, ASME B31.3	000000000	000000

45° Elbow Adapters

For Use With: Hydraulic Fluid, Liquid Nitrogen, Natural Gas, Steam, Water
Specifications Met: ASME B1.20.1, ASME B31.1, 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: ASME B1.20.1, ASME B31.1, 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	000000
3/4	12	4,600 psi @ 72° F	4,600 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: ASME B1.20.1, ASME B31.1, ASME B31.3

				316 Stainless Steel
Pipe Size	Dash Size	Max. Pressure	Max. Steam Pressure		Each
NPT Male
1/8	02	9,700 psi @ 72° F	9,700 psi @ 300° F	000000000	000000
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
3/4	12	6,400 psi @ 72° F	6,400 psi @ 300° F	000000000	000000
1	16	4,600 psi @ 72° F	4,600 psi @ 300° F	000000000	000000

Inline Tee Adapters

For Use With: Hydraulic Fluid, Liquid Nitrogen, Natural Gas, Steam, Water
Specifications Met: ASME B1.20.1, ASME B31.1, 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
3/4	12	3,500 psi @ 72° F	3,500 psi @ 300° F	000000000	000000
1	16	3,900 psi @ 72° F	3,900 psi @ 300° F	000000000	000000

Right-Angle Tee Adapters

For Use With: Hydraulic Fluid, Liquid Nitrogen, Natural Gas, Steam, Water
Specifications Met: ASME B1.20.1, ASME B31.1, 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	000000
3/4	12	3,500 psi @ 72° F	3,500 psi @ 300° F	000000000	000000
1	16	3,900 psi @ 72° F	3,900 psi @ 300° F	000000000	000000

Cross Connectors

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

				316 Stainless Steel
Pipe Size	Dash Size	Max. Pressure	Max. Steam Pressure		Each
NPT Female
1/8	02	5,500 psi @ 72° F	5,500 psi @ 300° F	00000000	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	00000000	000000
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

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

Transfer liquids and gasses into high-vacuum chambers with these assembled fittings, also known as feedthroughs. Because they form a tight seal on chamber walls, they are often used in coating, cooling, and leak-testing applications where negative pressure (vacuum) must be maintained. These fittings are ready to install and include high-vacuum fittings, metal tubing, and Yor-lok tube fittings. On each end, the Yor-lok fittings include a nut and two sleeves that grip your system’s stainless steel tubing. The entire assembly is stainless steel, so it resists rusting. These fittings are not for use in pressure applications.

Quick-clamp fittings meet ISO 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.

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

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

Quick Clamp Shown Installed

Quick Clamp

		For Tube
Flange OD	High-Vacuum Flange Size	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	High-Vacuum Flange Size	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

Wing Nut

With Wing Nut
For Flange OD	For High-Vacuum Flange Size	Material	Max. Vacuum		Each
1.18"	10, 16	Aluminum	1 × 10 ^-7 torr @ 72° F	00000000	00000
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	For High-Vacuum Flange Size	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	00000
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 High-Vacuum Flange Size	Bolt Dia.	Thread Size	No. of Bolts Included	No. of Nuts Included	No. of Washers Included	Bolt Material		Each
1 21/64"	16	0.164"	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