Medium-Pressure Stainless Steel Threaded Pipe Fittings

	Type Type

	Pipe Size Pipe Size

	Thread Type Thread Type

NPT

BSPP

BSPT

	Material Material

316 Stainless Steel

304 Stainless Steel

Alloy 20 Stainless Steel

	Shape Shape


Straight	Cap/Plug

Tee	90° Elbow

	Connection Style Connection Style

Threaded

Butt Weld

	For Pipe Material For Pipe Material

316/316L Stainless Steel

316 Stainless Steel

304/304L Stainless Steel

304 Stainless Steel

Alloy 20 Stainless Steel

	Gender Gender

Female

Male

	For Use With For Use With

	Pressure Class Pressure Class

150

1000

Not Rated

	Length Length

	Maximum Pressure Maximum Pressure

	Specifications Met Specifications Met

ASTM

ANSI/MSS

ASME

	Maximum Steam Pressure Maximum Steam Pressure

	DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense Acquisition Regulations Supplement)

DFARS Specialty Metals
COTS-Exempt

	RoHS (Restriction of Hazardous Substances) RoHS (Restriction of Hazardous Substances)

RoHS Compliant

	REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) REACH (Registration, Evaluation, Authorization and Restriction of Chemicals)

REACH Compliant

	Hex Width Hex Width

	Wall Thickness Wall Thickness

	ID ID

	Threading Threading

	Threaded on Both Ends
	Fully Threaded

	Gasket Material Gasket Material

Fluoroelastomer Rubber

EPDM Rubber

	Size Size

336 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.

Medium-Pressure Stainless Steel Threaded Pipe Fittings

Choose these fittings when you want the same high-quality found in our low-pressure pipe fittings, but need more strength to handle higher pressures.

Fittings that meet ANSI/MSS SP-114 adhere to high-quality standards for heat treating, material thickness, and marking.

304 stainless steel fittings have very good corrosion resistance. 316 stainless steel fittings have excellent corrosion resistance. Alloy 20 stainless steel fittings have the best corrosion resistance of all the stainless steel fittings we offer. Alloy 20 stainless steel is also known as Carpenter 20 and resists cracking from stress and corrosion.

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

Threaded female x butt weld straight adapters are also known as half couplings.

Fittings with intermittent swivel rotate 360° as needed to allow movement in a rigid metal piping system.

BSPP male threads have a gasket to protect against leaks.

Fluoroelastomer gaskets withstand high and low temperatures like silicone gaskets do, and also have some resistance to fuel and oil. EPDM gaskets resist water, steam, ethanol, and ethylene glycol.

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

Straight Connectors, Female

For Use With:
Alloy 20 connectors: Air, Steam, Water
All other connectors: Air, Natural Gas, Oil, Steam, Water
Pressure Class: 1000
Specifications Met:
Alloy 20 connectors: ANSI/MSS SP-114, ASME B1.20.1, ASTM B473
All other connectors: ANSI/MSS SP-114, ASTM A182
Pipe Nipples and Pipe: Use Schedule 40 stainless steel
Flanges: Use Class 150 stainless steel

304 Stainless Steel
Pipe Size	Max. Pressure	Max. Steam Pressure		Each
NPT Female
1/8	1,000 psi @ 72° F	650 psi @ 350° F	00000000	00000
1/4	1,000 psi @ 72° F	650 psi @ 350° F	00000000	0000
3/8	1,000 psi @ 72° F	650 psi @ 350° F	00000000	0000
1/2	1,000 psi @ 72° F	650 psi @ 350° F	00000000	00000
3/4	1,000 psi @ 72° F	650 psi @ 350° F	00000000	00000
1	1,000 psi @ 72° F	650 psi @ 350° F	00000000	00000
1 1/4	1,000 psi @ 72° F	650 psi @ 350° F	0000000	00000
1 1/2	1,000 psi @ 72° F	650 psi @ 350° F	0000000	00000
2	1,000 psi @ 72° F	650 psi @ 350° F	0000000	00000
2 1/2	1,000 psi @ 72° F	650 psi @ 350° F	00000000	000000
3	1,000 psi @ 72° F	650 psi @ 350° F	00000000	000000
4	1,000 psi @ 72° F	650 psi @ 350° F	00000000	000000
316 Stainless Steel
NPT Female
1/8	1,000 psi @ 72° F	650 psi @ 350° F	00000000	0000
1/4	1,000 psi @ 72° F	650 psi @ 350° F	00000000	00000
3/8	1,000 psi @ 72° F	650 psi @ 350° F	00000000	00000
1/2	1,000 psi @ 72° F	650 psi @ 350° F	00000000	00000
3/4	1,000 psi @ 72° F	650 psi @ 350° F	00000000	00000
1	1,000 psi @ 72° F	650 psi @ 350° F	00000000	00000
1 1/4	1,000 psi @ 72° F	650 psi @ 350° F	00000000	00000
1 1/2	1,000 psi @ 72° F	650 psi @ 350° F	00000000	00000
2	1,000 psi @ 72° F	650 psi @ 350° F	00000000	00000
2 1/2	1,000 psi @ 72° F	650 psi @ 350° F	00000000	000000
3	1,000 psi @ 72° F	650 psi @ 350° F	00000000	000000
4	1,000 psi @ 72° F	650 psi @ 350° F	00000000	000000
Alloy 20 Stainless Steel
NPT Female
1/8	1,000 psi @ 72° F	560 psi @ 360° F	0000000	00000
1/2	300 psi @ 72° F	150 psi @ 360° F	0000000	00000
3/4	300 psi @ 72° F	150 psi @ 360° F	0000000	000000
1	300 psi @ 72° F	150 psi @ 360° F	0000000	000000

Straight Connectors with Intermittent Swivel

For Use With: Water, Natural Gas, Coolant
Temperature Range: -20° to 225° F

					316 Stainless Steel
Pipe Size	Max. Pressure	Max. Vacuum	Lg.	Features		Each
NPT Female
1	1,000 psi @ 72° F	29 in. of Hg @ 72° F	3 15/16"	Ball Bearings	00000000	0000000
1 1/2	1,000 psi @ 72° F	29 in. of Hg @ 72° F	4 5/8"	Ball Bearings	00000000	000000

Straight Connectors, Male

For Use With:
316 Stainless Steel: Air, Coolant, Natural Gas, Oil, Steam, Water
Alloy 20 Stainless Steel: Air, Steam, Water
Pressure Class:
316 Stainless Steel: 150
Alloy 20 Stainless Steel: Not Rated
Specifications Met: See Table
Pipe Nipples and Pipe:
316 Stainless Steel: Use Schedule 40 316/316L stainless steel
Alloy 20 Stainless Steel: Use Schedule 40 alloy 20 stainless steel
Flanges:
316 Stainless Steel: Use 316/316L stainless steel
Alloy 20 Stainless Steel: Use Class 150 alloy 20 stainless steel

316 Stainless Steel
Pipe Size	Max. Pressure	Max. Steam Pressure	Gasket Material	Specifications Met		Each
NPT Male
1/4	507 psi @ 72° F	507 psi @ 350° F	__	__	00000000	000000
3/8	507 psi @ 72° F	507 psi @ 350° F	__	__	00000000	00000
1/2	507 psi @ 72° F	507 psi @ 350° F	__	__	00000000	00000
3/4	507 psi @ 72° F	507 psi @ 350° F	__	__	00000000	00000
1	507 psi @ 72° F	507 psi @ 350° F	__	__	00000000	00000
BSPP Male
1/4	507 psi @ 72° F	507 psi @ 350° F	Fluoroelastomer Rubber	__	00000000	00000
1/2	507 psi @ 72° F	507 psi @ 350° F	Fluoroelastomer Rubber	__	00000000	00000
3/4	507 psi @ 72° F	507 psi @ 350° F	Fluoroelastomer Rubber	__	00000000	00000
Alloy 20 Stainless Steel
NPT Male
1/4	Not Rated	Not Rated	__	ASME B1.20.1, ASTM B473	0000000	000000
3/4	Not Rated	Not Rated	__	ASME B1.20.1, ASTM B473	0000000	000000
1	Not Rated	Not Rated	__	ASME B1.20.1, ASTM B473	0000000	000000

Union Straight Connectors

Exploded View

For Use With: Air, Natural Gas, Oil, Steam, Water
Pressure Class: 1000
Specifications Met: ANSI/MSS SP-114, ASTM A182
Pipe Nipples and Pipe: Use Schedule 40 stainless steel
Flanges: Use Class 150 stainless steel

			304 Stainless Steel		316 Stainless Steel
Pipe Size	Max. Pressure	Max. Steam Pressure		Each		Each
NPT Female
1/8	1,000 psi @ 72° F	650 psi @ 350° F	0000000	000000	00000000	000000
1/4	1,000 psi @ 72° F	650 psi @ 350° F	0000000	00000	00000000	00000
3/8	1,000 psi @ 72° F	650 psi @ 350° F	0000000	00000	00000000	00000
1/2	1,000 psi @ 72° F	650 psi @ 350° F	0000000	00000	00000000	00000
3/4	1,000 psi @ 72° F	650 psi @ 350° F	00000000	00000	00000000	00000
1	1,000 psi @ 72° F	650 psi @ 350° F	00000000	00000	00000000	000000
1 1/4	1,000 psi @ 72° F	650 psi @ 350° F	00000000	000000	00000000	000000
1 1/2	1,000 psi @ 72° F	650 psi @ 350° F	00000000	000000	00000000	000000
2	1,000 psi @ 72° F	650 psi @ 350° F	00000000	000000	00000000	000000
2 1/2	1,000 psi @ 72° F	650 psi @ 350° F	00000000	000000	00000000	000000

Straight Adapters, Male

For Use With: Air, Coolant, Natural Gas, Oil, Steam, Water
Pressure Class : 150

				316 Stainless Steel
Pipe Size	Maximum Pressure	Maximum Steam Pressure	Gasket Material		Each
BSPP Male×BSPT Male
3/8	507 psi @ 72° F	507 psi @ 350° F	EPDM Rubber	00000000	000000
3/8	507 psi @ 72° F	507 psi @ 350° F	Fluoroelastomer Rubber	00000000	00000
1/2	507 psi @ 72° F	507 psi @ 350° F	EPDM Rubber	00000000	00000
1/2	507 psi @ 72° F	507 psi @ 350° F	Fluoroelastomer Rubber	00000000	00000
3/4	507 psi @ 72° F	507 psi @ 350° F	Fluoroelastomer Rubber	00000000	00000

Straight Adapters, Threaded Female x Butt Weld

For Use With: Air, Natural Gas, Oil, Steam, Water
Pressure Class : 1000
Specifications Met: ANSI/MSS SP-114, ASTM A182
Pipe Nipples and Pipe: Use Schedule 40 stainless steel
Flanges: Use Class 150 stainless steel

			304 Stainless Steel		316 Stainless Steel
Pipe Size	Max. Pressure	Max. Steam Pressure		Each		Each
NPT Female × Butt Weld
1/8	1,000 psi @ 72° F	650 psi @ 350° F	00000000	00000	00000000	00000
1/4	1,000 psi @ 72° F	650 psi @ 350° F	00000000	0000	00000000	0000
3/8	1,000 psi @ 72° F	650 psi @ 350° F	00000000	0000	00000000	0000
1/2	1,000 psi @ 72° F	650 psi @ 350° F	00000000	0000	00000000	0000
3/4	1,000 psi @ 72° F	650 psi @ 350° F	00000000	0000	00000000	00000
1	1,000 psi @ 72° F	650 psi @ 350° F	00000000	00000	00000000	00000
1 1/4	1,000 psi @ 72° F	650 psi @ 350° F	0000000	00000	00000000	00000
1 1/2	1,000 psi @ 72° F	650 psi @ 350° F	0000000	00000	00000000	00000
2	1,000 psi @ 72° F	650 psi @ 350° F	0000000	00000	00000000	00000
2 1/2	1,000 psi @ 72° F	650 psi @ 350° F	00000000	000000	00000000	000000
3	1,000 psi @ 72° F	650 psi @ 350° F	00000000	000000	00000000	000000
4	1,000 psi @ 72° F	650 psi @ 350° F	00000000	000000	00000000	000000

Straight Adapters, Female × Male

BSPP Male Threads with Gasket

For Use With: Air, Coolant, Natural Gas, Oil, Steam, Water
Pressure Class : 150
Specifications Met: ASTM A314, ASTM A320, ASTM A582
Pipe Nipples and Pipe: Use Schedule 40 stainless steel
Flanges: Use Class 150 stainless steel

				316 Stainless Steel
Pipe Size	Max. Pressure	Max. Steam Pressure	Gasket Material		Each
NPT Female × BSPP Male
1/16	500 psi @ 72° F	100 psi @ 350° F	Fluoroelastomer Rubber	00000000	000000
1/8	500 psi @ 72° F	100 psi @ 350° F	Fluoroelastomer Rubber	00000000	00000
1/4	500 psi @ 72° F	100 psi @ 350° F	Fluoroelastomer Rubber	00000000	00000
3/8	500 psi @ 72° F	100 psi @ 350° F	Fluoroelastomer Rubber	00000000	00000
1/2	500 psi @ 72° F	100 psi @ 350° F	Fluoroelastomer Rubber	00000000	00000
3/4	500 psi @ 72° F	100 psi @ 350° F	Fluoroelastomer Rubber	00000000	00000
1	500 psi @ 72° F	100 psi @ 350° F	Fluoroelastomer Rubber	00000000	00000
NPT Female × BSPT Male
1/16	500 psi @ 72° F	100 psi @ 350° F	__	00000000	00000
1/8	500 psi @ 72° F	100 psi @ 350° F	__	00000000	00000
1/4	500 psi @ 72° F	100 psi @ 350° F	__	00000000	00000
3/8	500 psi @ 72° F	100 psi @ 350° F	__	00000000	00000
1/2	500 psi @ 72° F	100 psi @ 350° F	__	00000000	00000
3/4	500 psi @ 72° F	100 psi @ 350° F	__	00000000	00000
1	500 psi @ 72° F	100 psi @ 350° F	__	00000000	00000
BSPP Female × NPT Male
1/16	500 psi @ 72° F	100 psi @ 350° F	__	00000000	00000
1/8	500 psi @ 72° F	100 psi @ 350° F	__	00000000	00000
1/4	500 psi @ 72° F	100 psi @ 350° F	__	00000000	00000
3/8	500 psi @ 72° F	100 psi @ 350° F	__	00000000	00000
1/2	500 psi @ 72° F	100 psi @ 350° F	__	00000000	00000
3/4	500 psi @ 72° F	100 psi @ 350° F	__	00000000	00000
1	500 psi @ 72° F	100 psi @ 350° F	__	00000000	00000
BSPT Female × NPT Male
1/8	500 psi @ 72° F	100 psi @ 350° F	__	00000000	00000
1/4	500 psi @ 72° F	100 psi @ 350° F	__	00000000	00000
3/8	500 psi @ 72° F	100 psi @ 350° F	__	00000000	00000
1/2	500 psi @ 72° F	100 psi @ 350° F	__	00000000	00000
3/4	500 psi @ 72° F	100 psi @ 350° F	__	00000000	00000
1	500 psi @ 72° F	100 psi @ 350° F	__	00000000	00000

Straight Reducing Adapters

BSPP Male Threads with Gasket

For Use With: Air, Coolant, Natural Gas, Oil, Steam, Water
Pressure Class : 150
Specifications Met: ASTM A314, ASTM A320, ASTM A582
Pipe Nipples and Pipe: Use Schedule 40 stainless steel
Flanges: Use Class 150 stainless steel

Pipe Size					316 Stainless Steel
(A)	(B)	Max. Pressure	Max. Steam Pressure	Gasket Material		Each
NPT Female × BSPP Male
1/16	1/8	500 psi @ 72° F	100 psi @ 350° F	Fluoroelastomer Rubber	00000000	000000
1/16	1/4	500 psi @ 72° F	100 psi @ 350° F	Fluoroelastomer Rubber	00000000	00000
1/8	1/16	500 psi @ 72° F	100 psi @ 350° F	Fluoroelastomer Rubber	00000000	00000
1/8	1/4	500 psi @ 72° F	100 psi @ 350° F	Fluoroelastomer Rubber	00000000	00000
1/8	3/8	500 psi @ 72° F	100 psi @ 350° F	Fluoroelastomer Rubber	00000000	00000
1/8	1/2	500 psi @ 72° F	100 psi @ 350° F	Fluoroelastomer Rubber	00000000	00000
1/4	1/16	500 psi @ 72° F	100 psi @ 350° F	Fluoroelastomer Rubber	00000000	00000
1/4	1/8	500 psi @ 72° F	100 psi @ 350° F	Fluoroelastomer Rubber	00000000	00000
1/4	3/8	500 psi @ 72° F	100 psi @ 350° F	Fluoroelastomer Rubber	00000000	00000
1/4	1/2	500 psi @ 72° F	100 psi @ 350° F	Fluoroelastomer Rubber	00000000	00000
1/4	3/4	500 psi @ 72° F	100 psi @ 350° F	Fluoroelastomer Rubber	00000000	00000
1/4	1	500 psi @ 72° F	100 psi @ 350° F	Fluoroelastomer Rubber	00000000	00000
3/8	1/8	500 psi @ 72° F	100 psi @ 350° F	Fluoroelastomer Rubber	00000000	00000
3/8	1/4	500 psi @ 72° F	100 psi @ 350° F	Fluoroelastomer Rubber	00000000	00000
3/8	1/2	500 psi @ 72° F	100 psi @ 350° F	Fluoroelastomer Rubber	00000000	00000
3/8	3/4	500 psi @ 72° F	100 psi @ 350° F	Fluoroelastomer Rubber	00000000	00000
3/8	1	500 psi @ 72° F	100 psi @ 350° F	Fluoroelastomer Rubber	00000000	00000
1/2	1/8	500 psi @ 72° F	100 psi @ 350° F	Fluoroelastomer Rubber	00000000	00000
1/2	1/4	500 psi @ 72° F	100 psi @ 350° F	Fluoroelastomer Rubber	00000000	00000
1/2	3/8	500 psi @ 72° F	100 psi @ 350° F	Fluoroelastomer Rubber	00000000	00000
1/2	3/4	500 psi @ 72° F	100 psi @ 350° F	Fluoroelastomer Rubber	00000000	00000
1/2	1	500 psi @ 72° F	100 psi @ 350° F	Fluoroelastomer Rubber	00000000	00000
3/4	1/4	500 psi @ 72° F	100 psi @ 350° F	Fluoroelastomer Rubber	00000000	00000
3/4	3/8	500 psi @ 72° F	100 psi @ 350° F	Fluoroelastomer Rubber	00000000	00000
3/4	1/2	500 psi @ 72° F	100 psi @ 350° F	Fluoroelastomer Rubber	00000000	00000
3/4	1	500 psi @ 72° F	100 psi @ 350° F	Fluoroelastomer Rubber	00000000	00000
1	1/2	500 psi @ 72° F	100 psi @ 350° F	Fluoroelastomer Rubber	00000000	00000
1	3/4	500 psi @ 72° F	100 psi @ 350° F	Fluoroelastomer Rubber	00000000	00000
NPT Female × BSPT Male
1/16	1/8	500 psi @ 72° F	100 psi @ 350° F	__	00000000	00000
1/8	1/16	500 psi @ 72° F	100 psi @ 350° F	__	00000000	00000
1/8	1/4	500 psi @ 72° F	100 psi @ 350° F	__	00000000	00000
1/8	3/8	500 psi @ 72° F	100 psi @ 350° F	__	00000000	00000
1/4	1/16	500 psi @ 72° F	100 psi @ 350° F	__	00000000	00000
1/4	1/8	500 psi @ 72° F	100 psi @ 350° F	__	00000000	00000
1/4	3/8	500 psi @ 72° F	100 psi @ 350° F	__	00000000	00000
1/4	1/2	500 psi @ 72° F	100 psi @ 350° F	__	00000000	00000
1/4	3/4	500 psi @ 72° F	100 psi @ 350° F	__	00000000	00000
3/8	1/8	500 psi @ 72° F	100 psi @ 350° F	__	00000000	00000
3/8	1/4	500 psi @ 72° F	100 psi @ 350° F	__	00000000	00000
3/8	1/2	500 psi @ 72° F	100 psi @ 350° F	__	00000000	00000
1/2	1/4	500 psi @ 72° F	100 psi @ 350° F	__	00000000	00000
1/2	3/8	500 psi @ 72° F	100 psi @ 350° F	__	00000000	00000
1/2	3/4	500 psi @ 72° F	100 psi @ 350° F	__	00000000	00000
1/2	1	500 psi @ 72° F	100 psi @ 350° F	__	00000000	00000
3/4	3/8	500 psi @ 72° F	100 psi @ 350° F	__	00000000	00000
3/4	1	500 psi @ 72° F	100 psi @ 350° F	__	00000000	00000
1	1/2	500 psi @ 72° F	100 psi @ 350° F	__	00000000	00000
1	3/4	500 psi @ 72° F	100 psi @ 350° F	__	00000000	00000
BSPP Female × NPT Male
1/8	1/4	500 psi @ 72° F	100 psi @ 350° F	__	00000000	00000
1/8	3/8	500 psi @ 72° F	100 psi @ 350° F	__	00000000	00000
1/4	1/16	500 psi @ 72° F	100 psi @ 350° F	__	00000000	00000
1/4	1/8	500 psi @ 72° F	100 psi @ 350° F	__	00000000	00000
1/4	3/8	500 psi @ 72° F	100 psi @ 350° F	__	00000000	00000
1/4	1/2	500 psi @ 72° F	100 psi @ 350° F	__	00000000	00000
1/4	3/4	500 psi @ 72° F	100 psi @ 350° F	__	00000000	00000
3/8	1/4	500 psi @ 72° F	100 psi @ 350° F	__	00000000	00000
3/8	1/2	500 psi @ 72° F	100 psi @ 350° F	__	00000000	00000
3/8	3/4	500 psi @ 72° F	100 psi @ 350° F	__	00000000	00000
3/8	1	500 psi @ 72° F	100 psi @ 350° F	__	00000000	00000
1/2	1/4	500 psi @ 72° F	100 psi @ 350° F	__	00000000	00000
1/2	3/8	500 psi @ 72° F	100 psi @ 350° F	__	00000000	00000
1/2	3/4	500 psi @ 72° F	100 psi @ 350° F	__	00000000	00000
1/2	1	500 psi @ 72° F	100 psi @ 350° F	__	00000000	00000
3/4	1/4	500 psi @ 72° F	100 psi @ 350° F	__	00000000	00000
3/4	3/8	500 psi @ 72° F	100 psi @ 350° F	__	00000000	00000
3/4	1/2	500 psi @ 72° F	100 psi @ 350° F	__	00000000	00000
3/4	1	500 psi @ 72° F	100 psi @ 350° F	__	00000000	00000
1	1/4	500 psi @ 72° F	100 psi @ 350° F	__	00000000	00000
1	1/2	500 psi @ 72° F	100 psi @ 350° F	__	00000000	00000
1	3/4	500 psi @ 72° F	100 psi @ 350° F	__	00000000	00000
BSPT Female × NPT Male
1/8	1/16	500 psi @ 72° F	100 psi @ 350° F	__	00000000	00000
1/8	1/4	500 psi @ 72° F	100 psi @ 350° F	__	00000000	00000
1/4	1/8	500 psi @ 72° F	100 psi @ 350° F	__	00000000	00000
1/4	1/2	500 psi @ 72° F	100 psi @ 350° F	__	00000000	00000
3/8	1/4	500 psi @ 72° F	100 psi @ 350° F	__	00000000	00000
3/8	1/2	500 psi @ 72° F	100 psi @ 350° F	__	00000000	00000
3/8	3/4	500 psi @ 72° F	100 psi @ 350° F	__	00000000	00000
1/2	1/4	500 psi @ 72° F	100 psi @ 350° F	__	00000000	00000
1/2	3/4	500 psi @ 72° F	100 psi @ 350° F	__	00000000	00000
3/4	1/2	500 psi @ 72° F	100 psi @ 350° F	__	00000000	00000
1	3/4	500 psi @ 72° F	100 psi @ 350° F	__	00000000	00000

Bushing Straight Reducing Adapters

For Use With: Air, Water, Steam
Pressure Class: Not Rated
Specifications Met: ASTM B473, ASME B16.11, ASME B1.20.1
Pipe Nipples and Pipe: Use Schedule 40 stainless steel
Flanges: Use Class 150 stainless steel

Pipe Size				Alloy 20 Stainless Steel
(A)	(B)	Max. Pressure	Max. Steam Pressure		Each
NPT Male × NPT Female
1/4	1/8	Not Rated	Not Rated	0000000	000000
3/8	1/4	Not Rated	Not Rated	0000000	00000
1/2	1/4	300 psi @ 72° F	150 psi @ 360° F	0000000	000000
3/4	1/2	300 psi @ 72° F	150 psi @ 360° F	0000000	000000
1	3/4	300 psi @ 72° F	150 psi @ 360° F	0000000	000000

Straight Reducers

For Use With: Air, Natural Gas, Oil, Steam, Water
Pressure Class : 1000
Specifications Met: ANSI/MSS SP-114, ASTM A182
Pipe Nipples and Pipe: Use Schedule 40 stainless steel
Flanges: Use Class 150 stainless steel

Pipe Size				304 Stainless Steel		316 Stainless Steel
(A)	(B)	Max. Pressure	Max. Steam Pressure		Each		Each
NPT Female
1/4	1/8	1,000 psi @ 72° F	650 psi @ 350° F	00000000	00000	00000000	000000
3/8	1/8	1,000 psi @ 72° F	650 psi @ 350° F	00000000	00000	00000000	00000
3/8	1/4	1,000 psi @ 72° F	650 psi @ 350° F	00000000	00000	00000000	00000
1/2	1/8	1,000 psi @ 72° F	650 psi @ 350° F	00000000	00000	00000000	00000
1/2	1/4	1,000 psi @ 72° F	650 psi @ 350° F	00000000	00000	00000000	00000
1/2	3/8	1,000 psi @ 72° F	650 psi @ 350° F	00000000	00000	00000000	00000
3/4	1/8	1,000 psi @ 72° F	650 psi @ 350° F	00000000	00000	000000	00
3/4	1/4	1,000 psi @ 72° F	650 psi @ 350° F	00000000	00000	00000000	00000
3/4	3/8	1,000 psi @ 72° F	650 psi @ 350° F	00000000	00000	00000000	00000
3/4	1/2	1,000 psi @ 72° F	650 psi @ 350° F	00000000	00000	00000000	00000
1	1/8	1,000 psi @ 72° F	650 psi @ 350° F	00000000	00000	000000	00
1	1/4	1,000 psi @ 72° F	650 psi @ 350° F	00000000	00000	00000000	00000
1	3/8	1,000 psi @ 72° F	650 psi @ 350° F	00000000	00000	00000000	00000
1	1/2	1,000 psi @ 72° F	650 psi @ 350° F	00000000	00000	00000000	00000
1	3/4	1,000 psi @ 72° F	650 psi @ 350° F	00000000	00000	00000000	00000
1 1/4	1/4	1,000 psi @ 72° F	650 psi @ 350° F	00000000	00000	00000000	00000
1 1/4	3/8	1,000 psi @ 72° F	650 psi @ 350° F	000000	00	00000000	00000
1 1/4	1/2	1,000 psi @ 72° F	650 psi @ 350° F	00000000	00000	00000000	00000
1 1/4	3/4	1,000 psi @ 72° F	650 psi @ 350° F	00000000	00000	00000000	00000
1 1/4	1	1,000 psi @ 72° F	650 psi @ 350° F	00000000	00000	00000000	00000
1 1/2	1/4	1,000 psi @ 72° F	650 psi @ 350° F	00000000	00000	00000000	00000
1 1/2	3/8	1,000 psi @ 72° F	650 psi @ 350° F	00000000	00000	000000	00
1 1/2	1/2	1,000 psi @ 72° F	650 psi @ 350° F	00000000	00000	00000000	00000
1 1/2	3/4	1,000 psi @ 72° F	650 psi @ 350° F	00000000	00000	00000000	00000
1 1/2	1	1,000 psi @ 72° F	650 psi @ 350° F	00000000	00000	00000000	00000
1 1/2	1 1/4	1,000 psi @ 72° F	650 psi @ 350° F	00000000	00000	00000000	00000
2	3/8	1,000 psi @ 72° F	650 psi @ 350° F	00000000	000000	00000000	000000
2	1/2	1,000 psi @ 72° F	650 psi @ 350° F	00000000	000000	00000000	00000
2	3/4	1,000 psi @ 72° F	650 psi @ 350° F	00000000	000000	00000000	000000
2	1	1,000 psi @ 72° F	650 psi @ 350° F	00000000	000000	00000000	000000
2	1 1/4	1,000 psi @ 72° F	650 psi @ 350° F	00000000	000000	00000000	000000
2	1 1/2	1,000 psi @ 72° F	650 psi @ 350° F	00000000	000000	00000000	000000
2 1/2	2	1,000 psi @ 72° F	650 psi @ 350° F	00000000	000000	00000000	000000
3	1	1,000 psi @ 72° F	650 psi @ 350° F	00000000	000000	00000000	000000
3	2	1,000 psi @ 72° F	650 psi @ 350° F	00000000	000000	00000000	000000
4	3	1,000 psi @ 72° F	650 psi @ 350° F	00000000	000000	000000	00

90° Elbow Connectors

For Use With: Air, Water, Steam
Pressure Class : 150
Specifications Met: ANSI/MSS SP-114, ASTM B351, ASME B1.20.1
Pipe Nipples and Pipe: Use Schedule 40 stainless steel
Flanges: Use Class 150 stainless steel

			Alloy 20 Stainless Steel
Pipe Size	Max. Pressure	Max. Steam Pressure		Each
NPT Female
1/4	1,000 psi @ 72° F	560 psi @ 360° F	0000000	0000000
3/8	1,000 psi @ 72° F	560 psi @ 360° F	0000000	000000
1/2	300 psi @ 72° F	150 psi @ 360° F	0000000	000000
3/4	300 psi @ 72° F	150 psi @ 360° F	0000000	000000
1	300 psi @ 72° F	150 psi @ 360° F	0000000	000000
1 1/2	300 psi @ 72° F	150 psi @ 360° F	0000000	000000
2	300 psi @ 72° F	150 psi @ 360° F	0000000	000000

90° Elbow Connectors with Intermittent Swivel

For Use With: Water, Natural Gas, Coolant
Temperature Range: -20° to 225° F

				316 Stainless Steel
Pipe Size	Max. Pressure	Max. Vacuum	Features		Each
NPT Female
1	1,000 psi @ 72° F	29 in. of Hg @ 72° F	Ball Bearings	00000000	0000000
1 1/2	1,000 psi @ 72° F	29 in. of Hg @ 72° F	Ball Bearings	00000000	00000000

Tee Connectors

For Use With: Air, Water, Steam
Pressure Class: See Table
Specifications Met: See Table
Pipe Nipples and Pipe: Use Schedule 40 stainless steel
Flanges: Use Class 150 stainless steel

					Alloy 20 Stainless Steel
Pressure Class	Pipe Size	Max. Pressure	Max. Steam Pressure	Specifications Met		Each
NPT Female
1000	1/4	1,000 psi @ 72° F	560 psi @ 360° F	ANSI/MSS SP-114, ASME B1.20.1, ASTM B473	0000000	0000000
1000	3/8	1,000 psi @ 72° F	560 psi @ 360° F	ANSI/MSS SP-114, ASME B1.20.1, ASTM B473	0000000	000000
150	1/2	300 psi @ 72° F	150 psi @ 360° F	ANSI/MSS SP-114, ASME B1.20.1, ASTM B351	0000000	000000
150	3/4	300 psi @ 72° F	150 psi @ 360° F	ANSI/MSS SP-114, ASME B1.20.1, ASTM B351	0000000	000000
150	1	300 psi @ 72° F	150 psi @ 360° F	ANSI/MSS SP-114, ASME B1.20.1, ASTM B351	0000000	000000
150	1 1/2	300 psi @ 72° F	150 psi @ 360° F	ANSI/MSS SP-114, ASME B1.20.1, ASTM B351	0000000	000000
150	2	300 psi @ 72° F	150 psi @ 360° F	ANSI/MSS SP-114, ASME B1.20.1, ASTM B351	0000000	000000

Caps

For Use With: Air, Natural Gas, Oil, Steam, Water
Pressure Class : 1000
Specifications Met: ANSI/MSS SP-114, ASTM A182
Pipe Nipples and Pipe: Use Schedule 40 stainless steel
Flanges: Use Class 150 stainless steel

			304 Stainless Steel		316 Stainless Steel
Pipe Size	Max. Pressure	Max. Steam Pressure		Each		Each
NPT Female
1/8	1,000 psi @ 72° F	650 psi @ 350° F	0000000	00000	00000000	00000
1/4	1,000 psi @ 72° F	650 psi @ 350° F	0000000	0000	00000000	0000
3/8	1,000 psi @ 72° F	650 psi @ 350° F	0000000	0000	00000000	00000
1/2	1,000 psi @ 72° F	650 psi @ 350° F	0000000	0000	00000000	00000
3/4	1,000 psi @ 72° F	650 psi @ 350° F	0000000	00000	00000000	00000
1	1,000 psi @ 72° F	650 psi @ 350° F	0000000	00000	00000000	00000
1 1/4	1,000 psi @ 72° F	650 psi @ 350° F	0000000	00000	00000000	00000
1 1/2	1,000 psi @ 72° F	650 psi @ 350° F	0000000	00000	00000000	00000
2	1,000 psi @ 72° F	650 psi @ 350° F	0000000	00000	00000000	000000
2 1/2	1,000 psi @ 72° F	650 psi @ 350° F	00000000	000000	00000000	000000
3	1,000 psi @ 72° F	650 psi @ 350° F	00000000	000000	00000000	000000
4	1,000 psi @ 72° F	650 psi @ 350° F	00000000	000000	00000000	000000

Plugs with External Hex Drive

For Use With: Air, Water, Steam
Pressure Class: Not Rated
Specifications Met: ASME B16.11, ASTM B473, ASME B1.20.1
Pipe Nipples and Pipe: Use Schedule 40 stainless steel
Flanges: Use Class 150 stainless steel

			Alloy 20 Stainless Steel
Pipe Size	Max. Pressure	Max. Steam Pressure		Each
NPT Male
1/8	Not Rated	Not Rated	0000000	000000
1/4	Not Rated	Not Rated	0000000	00000
3/8	Not Rated	Not Rated	0000000	00000
1/2	300 psi @ 72° F	150 psi @ 360° F	0000000	00000
3/4	300 psi @ 72° F	150 psi @ 360° F	0000000	00000
1	300 psi @ 72° F	150 psi @ 360° F	0000000	000000
1 1/2	Not Rated	Not Rated	0000000	000000
2	Not Rated	Not Rated	0000000	000000

Standard-Wall Stainless Steel Threaded Pipe Nipples and Pipe

Designed for low-pressure flow applications, this pipe is also known as Schedule 40. Alloy 20 stainless steel pipe has the best corrosion resistance of all the stainless steel pipe we offer. Alloy 20 stainless steel is also known as Carpenter 20 and resists cracking from stress and corrosion.

Seamless pipe has a smooth interior for unrestricted flow and is stronger than welded pipe.

Fully threaded pipe is also known as a close nipple; it is threaded on each end to the center.

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

NPT Fully Threaded—Alloy 20 Stainless Steel

For Use With: Water, Steam, Air
Specifications Met: ASTM B729, ASME B1.20.1
Fittings: Use Class 150 stainless steel
Flanges: Use Class 150 stainless steel

Pipe Size	Lg.	Construction		Each
1/2	1 1/8"	Seamless	0000000	000000
3/4	1 3/8"	Seamless	0000000	00000
1	1 1/2"	Seamless	0000000	00000
2	2"	Seamless	0000000	000000

NPT Threaded on Both Ends—Alloy 20 Stainless Steel

For Use With: Water, Steam, Air
Specifications Met: ASTM B729, ASME B1.20.1
Fittings: Use Class 150 stainless steel
Flanges: Use Class 150 stainless steel

1/2 Pipe Size
Lg.	Construction		Each
2"	Seamless	0000000	000000
3"	Seamless	0000000	00000
4"	Seamless	0000000	00000
6"	Seamless	0000000	000000
3/4 Pipe Size
2"	Seamless	0000000	00000
3"	Seamless	0000000	00000
4"	Seamless	0000000	00000
6"	Seamless	0000000	000000
1 Pipe Size
2"	Seamless	0000000	00000
3"	Seamless	0000000	00000
4"	Seamless	0000000	000000
1 1/2 Pipe Size
2"	Seamless	0000000	000000
3"	Seamless	0000000	000000
2 Pipe Size
6"	Seamless	0000000	000000