British Standard Low-Pressure Stainless Steel Threaded Pipe Fittings

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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.

Low-Pressure Stainless Steel Threaded Pipe Fittings

Use these fittings in a low-pressure pipe line.

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.

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. Adapters with weld end allow for a permanent connection.

Locknuts thread onto the male end of a fitting to provide extra holding power so the fitting won’t loosen from vibration. Locknuts that meet DIN 431 comply with international standards for pipe fitting locknut dimensions.

Female x male 90° elbow adapters are also known as street elbows.

NPTF (Dryseal) threads and NPSL (National Pipe Straight Locknut) threads are compatible with NPT threads.

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

Straight Connectors, Female

For Use With: Air, Natural Gas, Oil, Steam, Water
Pressure Class: 150
Fabrication: Heat Treated
Specifications Met:
NPT: ANSI/MSS SP-114, ASTM A351
BSPP and BSPT: ANSI/MSS SP-114
Pipe Nipples and Pipe: Use Schedule 40 stainless steel
Flanges: Use Class 150 stainless steel

		304 Stainless Steel			316 Stainless Steel
Pipe Size	Max. Steam Pressure	Max. Pressure		Each	Max. Pressure		Each
BSPP Female
1/2	150 psi @ 350° F	300 psi @ 72° F	00000000	000000	__	000000	00
3/4	150 psi @ 350° F	300 psi @ 72° F	00000000	00000	__	000000	00
1	150 psi @ 350° F	300 psi @ 72° F	00000000	00000	__	000000	00
1 1/4	150 psi @ 350° F	300 psi @ 72° F	00000000	00000	__	000000	00
1 1/2	150 psi @ 350° F	300 psi @ 72° F	00000000	00000	__	000000	00
2	150 psi @ 350° F	300 psi @ 72° F	00000000	00000	__	000000	00
BSPT Female
1/8	150 psi @ 350° F	300 psi @ 72° F	00000000	0000	150 psi @ 72° F	00000000	00000
1/4	150 psi @ 350° F	300 psi @ 72° F	00000000	0000	150 psi @ 72° F	00000000	0000
3/8	150 psi @ 350° F	300 psi @ 72° F	00000000	0000	150 psi @ 72° F	00000000	0000
1/2	150 psi @ 350° F	300 psi @ 72° F	00000000	0000	150 psi @ 72° F	00000000	00000
3/4	150 psi @ 350° F	300 psi @ 72° F	00000000	00000	150 psi @ 72° F	00000000	00000
1	150 psi @ 350° F	300 psi @ 72° F	00000000	00000	150 psi @ 72° F	00000000	00000
1 1/4	150 psi @ 350° F	150 psi @ 72° F	00000000	00000	150 psi @ 72° F	00000000	00000
1 1/2	150 psi @ 350° F	300 psi @ 72° F	00000000	00000	150 psi @ 72° F	00000000	00000
2	150 psi @ 350° F	300 psi @ 72° F	00000000	00000	150 psi @ 72° F	00000000	00000

Straight Connectors, Male

For Use With: Air, Natural Gas, Oil, Steam, Water
Pressure Class: 150
Fabrication: Heat Treated
Specifications Met:
NPT, BSPP, and 316 Stainless Steel BSPT: ASTM A351
304 Stainless Steel BSPT: DIN EN 10226
Pipe Nipples and Pipe: Use Schedule 40 stainless steel
Flanges: Use Class 150 stainless steel

			304 Stainless Steel		316 Stainless Steel
Pipe Size	Max. Steam Pressure	Max. Pressure		Each		Each
BSPT Male
1/8	150 psi @ 350° F	300 psi @ 72° F	00000000	00000	00000000	00000
1/4	150 psi @ 350° F	300 psi @ 72° F	00000000	0000	00000000	0000
3/8	150 psi @ 350° F	300 psi @ 72° F	00000000	0000	00000000	0000
1/2	150 psi @ 350° F	300 psi @ 72° F	00000000	00000	00000000	00000
3/4	150 psi @ 350° F	300 psi @ 72° F	00000000	00000	00000000	00000
1	150 psi @ 350° F	300 psi @ 72° F	00000000	00000	00000000	00000
1 1/4	150 psi @ 350° F	300 psi @ 72° F	00000000	00000	00000000	00000
1 1/2	150 psi @ 350° F	300 psi @ 72° F	00000000	00000	00000000	00000
2	150 psi @ 350° F	300 psi @ 72° F	00000000	00000	00000000	00000

Union Straight Connectors

Exploded View

For Use With: Air, Natural Gas, Oil, Steam, Water
Pressure Class: 150
Fabrication: Heat Treated
Specifications Met:
NPT: ANSI/MSS SP-114, ASTM A351
BSPP and BSPT: ASNI/MSS SP-114
Pipe Nipples and Pipe: Use Schedule 40 stainless steel
Flanges: Use Class 150 stainless steel

		304 Stainless Steel			316 Stainless Steel
Pipe Size	Max. Steam Pressure	Max. Pressure		Each	Max. Pressure		Each
BSPP Female
1/2	150 psi @ 350° F	300 psi @ 72° F	00000000	000000	__	000000	00
3/4	150 psi @ 350° F	300 psi @ 72° F	00000000	00000	__	000000	00
1	150 psi @ 350° F	300 psi @ 72° F	00000000	00000	__	000000	00
1 1/4	150 psi @ 350° F	300 psi @ 72° F	00000000	00000	__	000000	00
1 1/2	150 psi @ 350° F	300 psi @ 72° F	00000000	00000	__	000000	00
2	150 psi @ 350° F	300 psi @ 72° F	00000000	000000	__	000000	00
BSPT Female
1/8	150 psi @ 350° F	300 psi @ 72° F	00000000	00000	150 psi @ 72° F	00000000	000000
1/4	150 psi @ 350° F	300 psi @ 72° F	00000000	00000	150 psi @ 72° F	00000000	00000
3/8	150 psi @ 350° F	300 psi @ 72° F	00000000	00000	150 psi @ 72° F	00000000	00000
1/2	150 psi @ 350° F	300 psi @ 72° F	00000000	00000	150 psi @ 72° F	00000000	00000
3/4	150 psi @ 350° F	300 psi @ 72° F	00000000	00000	150 psi @ 72° F	00000000	00000
1	150 psi @ 350° F	300 psi @ 72° F	00000000	00000	150 psi @ 72° F	00000000	00000
1 1/4	150 psi @ 350° F	150 psi @ 72° F	00000000	00000	150 psi @ 72° F	00000000	00000
1 1/2	150 psi @ 350° F	300 psi @ 72° F	00000000	000000	150 psi @ 72° F	00000000	00000
2	150 psi @ 350° F	300 psi @ 72° F	00000000	000000	150 psi @ 72° F	00000000	000000

Straight Adapters, Threaded Female × Butt Weld

For Use With: Air, Natural Gas, Oil, Steam, Water
Pressure Class: 150
Fabrication: Heat Treated
Specifications Met:
NPT × Butt Weld: ANSI/MSS SP-114, ASTM A351
BSPT × Butt Weld: ANSI/MSS SP-114
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
BSPT Female × Butt Weld
1/8	300 psi @ 72° F	150 psi @ 350° F	00000000	00000
1/4	300 psi @ 72° F	150 psi @ 350° F	00000000	0000
3/8	300 psi @ 72° F	150 psi @ 350° F	00000000	0000
1/2	300 psi @ 72° F	150 psi @ 350° F	00000000	0000
3/4	300 psi @ 72° F	150 psi @ 350° F	00000000	0000
1	300 psi @ 72° F	150 psi @ 350° F	00000000	0000
1 1/2	300 psi @ 72° F	150 psi @ 350° F	00000000	00000
2	300 psi @ 72° F	150 psi @ 350° F	00000000	00000

Straight Adapters, Male

For Use With: Air, Natural Gas, Oil, Steam, Water
Pressure Class: 150
Specifications Met:
BSPP × NPT and 316 Stainless Steel BSPT × NPT: ASTM A351
304 Stainless Steel BSPT × NPT: ASME B1.20.1, DIN EN 10226
Fabrication: Heat Treated
Pipe Nipples and Pipe: Use Schedule 40 stainless steel
Flanges: Use Class 150 stainless steel

			304 Stainless Steel		316 Stainless Steel
Pipe Size	Max. Steam Pressure	Max. Pressure		Each		Each
BSPT Male × NPT Male
1/8	150 psi @ 350° F	300 psi @ 72° F	00000000	00000	00000000	00000
1/4	150 psi @ 350° F	300 psi @ 72° F	00000000	0000	00000000	0000
3/8	150 psi @ 350° F	300 psi @ 72° F	00000000	00000	00000000	0000
1/2	150 psi @ 350° F	300 psi @ 72° F	00000000	00000	00000000	00000
3/4	150 psi @ 350° F	300 psi @ 72° F	00000000	00000	00000000	00000
1	150 psi @ 350° F	300 psi @ 72° F	00000000	00000	00000000	00000
1 1/4	150 psi @ 350° F	300 psi @ 72° F	00000000	00000	00000000	00000
1 1/2	150 psi @ 350° F	300 psi @ 72° F	00000000	00000	00000000	00000
2	150 psi @ 350° F	300 psi @ 72° F	00000000	00000	00000000	00000

Straight Reducing Adapters

For Use With: Air, Natural Gas, Oil, Steam, Water
Pressure Class: 150
Specifications Met:
BSPP × NPT and 316 Stainless Steel BSPT × NPT: ASTM A351
304 Stainless Steel BSPT × NPT: ASME B1.20.1, DIN EN 10226
Fabrication: Heat Treated
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
BSPT Male × NPT Male
1/4	1/8	300 psi @ 72° F	150 psi @ 350° F	00000000	00000	00000000	00000
3/8	1/8	300 psi @ 72° F	150 psi @ 350° F	00000000	0000	00000000	00000
3/8	1/4	300 psi @ 72° F	150 psi @ 350° F	00000000	0000	00000000	00000
1/2	1/8	300 psi @ 72° F	150 psi @ 350° F	00000000	00000	00000000	00000
1/2	1/4	300 psi @ 72° F	150 psi @ 350° F	00000000	00000	00000000	00000
1/2	3/8	300 psi @ 72° F	150 psi @ 350° F	00000000	00000	00000000	00000
3/4	1/4	300 psi @ 72° F	150 psi @ 350° F	00000000	00000	00000000	00000
3/4	3/8	300 psi @ 72° F	150 psi @ 350° F	00000000	00000	00000000	00000
1	3/8	300 psi @ 72° F	150 psi @ 350° F	00000000	00000	00000000	00000
1	1/2	300 psi @ 72° F	150 psi @ 350° F	00000000	00000	00000000	00000
1	3/4	300 psi @ 72° F	150 psi @ 350° F	00000000	00000	00000000	00000
1 1/4	3/4	300 psi @ 72° F	150 psi @ 350° F	00000000	00000	00000000	00000
1 1/4	1	300 psi @ 72° F	150 psi @ 350° F	00000000	00000	00000000	00000
1 1/2	3/4	300 psi @ 72° F	150 psi @ 350° F	00000000	00000	00000000	00000
1 1/2	1	300 psi @ 72° F	150 psi @ 350° F	00000000	00000	00000000	00000
1 1/2	1 1/4	300 psi @ 72° F	150 psi @ 350° F	00000000	00000	00000000	00000
2	1	300 psi @ 72° F	150 psi @ 350° F	00000000	00000	00000000	00000
2	1 1/4	300 psi @ 72° F	150 psi @ 350° F	00000000	00000	00000000	00000
2	1 1/2	300 psi @ 72° F	150 psi @ 350° F	00000000	00000	00000000	00000

Bushing Straight Reducing Adapters

For Use With: Air, Natural Gas, Oil, Steam, Water
Pressure Class: 150
Fabrication: Heat Treated
Specifications Met:
NPT × NPT: ANSI/MSS SP-114, ASTM A351
BSPT × BSPT: ANSI/MSS SP-114
Pipe Nipples and Pipe: Use Schedule 40 stainless steel
Flanges: Use Class 150 stainless steel

Pipe Size
(A)	(B)	Max. Steam Pressure	Max. Pressure		Each
304 Stainless Steel
BSPT Male × BSPT Female
1/4	1/8	150 psi @ 350° F	300 psi @ 72° F	00000000	00000
3/8	1/8	150 psi @ 350° F	300 psi @ 72° F	00000000	0000
3/8	1/4	150 psi @ 350° F	300 psi @ 72° F	00000000	0000
1/2	1/8	150 psi @ 350° F	300 psi @ 72° F	00000000	0000
1/2	1/4	150 psi @ 350° F	300 psi @ 72° F	00000000	0000
1/2	3/8	150 psi @ 350° F	300 psi @ 72° F	00000000	0000
3/4	1/4	150 psi @ 350° F	300 psi @ 72° F	00000000	0000
3/4	3/8	150 psi @ 350° F	300 psi @ 72° F	00000000	00000
3/4	1/2	150 psi @ 350° F	300 psi @ 72° F	00000000	00000
1	1/4	150 psi @ 350° F	300 psi @ 72° F	00000000	00000
1	3/8	150 psi @ 350° F	300 psi @ 72° F	00000000	00000
1	1/2	150 psi @ 350° F	300 psi @ 72° F	00000000	00000
1	3/4	150 psi @ 350° F	300 psi @ 72° F	00000000	00000
1 1/4	3/4	150 psi @ 350° F	300 psi @ 72° F	00000000	00000
1 1/4	1	150 psi @ 350° F	300 psi @ 72° F	00000000	00000
1 1/2	3/4	150 psi @ 350° F	300 psi @ 72° F	00000000	00000
1 1/2	1	150 psi @ 350° F	300 psi @ 72° F	00000000	00000
1 1/2	1 1/4	150 psi @ 350° F	300 psi @ 72° F	00000000	00000
2	1	150 psi @ 350° F	300 psi @ 72° F	00000000	00000
2	1 1/2	150 psi @ 350° F	300 psi @ 72° F	00000000	00000
316 Stainless Steel
BSPT Male × BSPT Female
1/4	1/8	150 psi @ 350° F	150 psi @ 72° F	00000000	0000
3/8	1/8	150 psi @ 350° F	150 psi @ 72° F	00000000	0000
3/8	1/4	150 psi @ 350° F	150 psi @ 72° F	00000000	0000
1/2	1/8	150 psi @ 350° F	150 psi @ 72° F	00000000	0000
1/2	1/4	150 psi @ 350° F	150 psi @ 72° F	00000000	0000
1/2	3/8	150 psi @ 350° F	150 psi @ 72° F	00000000	0000
3/4	1/4	150 psi @ 350° F	150 psi @ 72° F	00000000	0000
3/4	3/8	150 psi @ 350° F	150 psi @ 72° F	00000000	0000
1	1/4	150 psi @ 350° F	150 psi @ 72° F	00000000	00000
1	3/8	150 psi @ 350° F	150 psi @ 72° F	00000000	00000
1	1/2	150 psi @ 350° F	150 psi @ 72° F	00000000	00000
1	3/4	150 psi @ 350° F	150 psi @ 72° F	00000000	00000
1 1/4	3/4	150 psi @ 350° F	150 psi @ 72° F	00000000	00000
1 1/4	1	150 psi @ 350° F	150 psi @ 72° F	00000000	00000
1 1/2	3/4	150 psi @ 350° F	150 psi @ 72° F	00000000	00000
1 1/2	1	150 psi @ 350° F	150 psi @ 72° F	00000000	00000
1 1/2	1 1/4	150 psi @ 350° F	150 psi @ 72° F	00000000	00000
2	1	150 psi @ 350° F	150 psi @ 72° F	00000000	00000
2	1 1/4	150 psi @ 350° F	150 psi @ 72° F	00000000	00000
2	1 1/2	150 psi @ 350° F	150 psi @ 72° F	00000000	00000

Straight Reducers, Female

For Use With: Air, Natural Gas, Oil, Steam, Water
Pressure Class: 150
Fabrication: Heat Treated
Specification Met:
NPT: ANSI/MSS SP-114, ASTM A351
BSPP and BSPT: ANSI/MSS SP-114
Pipe Nipples and Pipe: Use Schedule 40 stainless steel
Flanges: Use Class 150 stainless steel

Pipe Size
(A)	(B)	Max. Steam Pressure	Max. Pressure		Each
304 Stainless Steel
BSPT Female
1/4	1/8	150 psi @ 350° F	300 psi @ 72° F	00000000	00000
3/8	1/8	150 psi @ 350° F	300 psi @ 72° F	00000000	0000
3/8	1/4	150 psi @ 350° F	300 psi @ 72° F	00000000	0000
1/2	1/8	150 psi @ 350° F	300 psi @ 72° F	00000000	0000
1/2	1/4	150 psi @ 350° F	300 psi @ 72° F	00000000	0000
1/2	3/8	150 psi @ 350° F	300 psi @ 72° F	00000000	0000
3/4	1/4	150 psi @ 350° F	300 psi @ 72° F	00000000	00000
3/4	3/8	150 psi @ 350° F	300 psi @ 72° F	00000000	00000
3/4	1/2	150 psi @ 350° F	300 psi @ 72° F	00000000	00000
1	1/4	150 psi @ 350° F	300 psi @ 72° F	00000000	00000
1	3/8	150 psi @ 350° F	300 psi @ 72° F	00000000	00000
1	1/2	150 psi @ 350° F	300 psi @ 72° F	00000000	00000
1	3/4	150 psi @ 350° F	300 psi @ 72° F	00000000	00000
1 1/4	3/4	150 psi @ 350° F	150 psi @ 72° F	00000000	00000
1 1/2	3/4	150 psi @ 350° F	300 psi @ 72° F	00000000	00000
1 1/2	1	150 psi @ 350° F	300 psi @ 72° F	00000000	00000
1 1/2	1 1/4	150 psi @ 350° F	300 psi @ 72° F	00000000	00000
2	1	150 psi @ 350° F	300 psi @ 72° F	00000000	00000
2	1 1/2	150 psi @ 350° F	300 psi @ 72° F	00000000	00000
316 Stainless Steel
BSPT Female
1/4	1/8	150 psi @ 350° F	150 psi @ 72° F	00000000	0000
3/8	1/8	150 psi @ 350° F	150 psi @ 72° F	00000000	00000
3/8	1/4	150 psi @ 350° F	150 psi @ 72° F	00000000	00000
1/2	1/8	150 psi @ 350° F	150 psi @ 72° F	00000000	00000
1/2	1/4	150 psi @ 350° F	150 psi @ 72° F	00000000	00000
1/2	3/8	150 psi @ 350° F	150 psi @ 72° F	00000000	00000
3/4	1/4	150 psi @ 350° F	150 psi @ 72° F	00000000	00000
3/4	3/8	150 psi @ 350° F	150 psi @ 72° F	00000000	00000
1	1/4	150 psi @ 350° F	150 psi @ 72° F	00000000	00000
1	3/8	150 psi @ 350° F	150 psi @ 72° F	00000000	00000
1	1/2	150 psi @ 350° F	150 psi @ 72° F	00000000	00000
1	3/4	150 psi @ 350° F	150 psi @ 72° F	00000000	00000
1 1/4	1	150 psi @ 350° F	150 psi @ 72° F	00000000	00000
1 1/2	3/4	150 psi @ 350° F	150 psi @ 72° F	00000000	00000
1 1/2	1	150 psi @ 350° F	150 psi @ 72° F	00000000	00000
1 1/2	1 1/4	150 psi @ 350° F	150 psi @ 72° F	00000000	00000
2	1	150 psi @ 350° F	150 psi @ 72° F	00000000	00000
2	1 1/2	150 psi @ 350° F	150 psi @ 72° F	00000000	00000

Straight Reducers, Male

For Use With: Air, Natural Gas, Oil, Steam, Water
Pressure Class: 150
Fabrication: Heat Treated
Specifications Met:
NPT: ASTM A351
BSPT: DIN EN 10226
Pipe Nipples and Pipe: Use Schedule 40 stainless steel
Flanges: Use Class 150 stainless steel

Pipe Size				304 Stainless Steel
(A)	(B)	Max. Steam Pressure	Max. Pressure		Each
BSPT Male
1/4	1/8	150 psi @ 350° F	300 psi @ 72° F	00000000	00000
3/8	1/8	150 psi @ 350° F	300 psi @ 72° F	00000000	0000
3/8	1/4	150 psi @ 350° F	300 psi @ 72° F	00000000	0000
1/2	1/8	150 psi @ 350° F	300 psi @ 72° F	00000000	00000
1/2	1/4	150 psi @ 350° F	300 psi @ 72° F	00000000	00000
1/2	3/8	150 psi @ 350° F	300 psi @ 72° F	00000000	00000
3/4	1/4	150 psi @ 350° F	300 psi @ 72° F	00000000	00000
3/4	3/8	150 psi @ 350° F	300 psi @ 72° F	00000000	00000
1	3/8	150 psi @ 350° F	300 psi @ 72° F	00000000	00000
1	1/2	150 psi @ 350° F	300 psi @ 72° F	00000000	00000
1	3/4	150 psi @ 350° F	300 psi @ 72° F	00000000	00000
1 1/4	3/4	150 psi @ 350° F	300 psi @ 72° F	00000000	00000
1 1/4	1	150 psi @ 350° F	300 psi @ 72° F	00000000	00000
1 1/2	1	150 psi @ 350° F	300 psi @ 72° F	00000000	00000
1 1/2	1 1/4	150 psi @ 350° F	300 psi @ 72° F	00000000	00000
2	1	150 psi @ 350° F	300 psi @ 72° F	00000000	00000
2	1 1/2	150 psi @ 350° F	300 psi @ 72° F	00000000	00000

Locknuts

For Use With: Air, Natural Gas, Oil, Steam, Water
Pressure Class:
NPSL: 150
Fabrication:
NPSL: Heat Treated
Specifications Met:
NPSL: ANSI/MSS SP-114, ASTM A351
BSPP: DIN 431
Pipe Nipples and Pipe:
NPSL: Use Schedule 40 stainless steel
Flanges:
NPSL: Use Class 150 stainless steel

			304 Stainless Steel
Pipe Size	Max. Pressure	Max. Steam Pressure		Each
BSPP Female
1/8	Not Rated	Not Rated	00000000	00000
1/4	Not Rated	Not Rated	00000000	0000
3/8	Not Rated	Not Rated	00000000	0000
1/2	Not Rated	Not Rated	00000000	0000
5/8	Not Rated	Not Rated	00000000	0000
3/4	Not Rated	Not Rated	00000000	0000
1	Not Rated	Not Rated	00000000	00000

90° Elbow Connectors

For Use With: Air, Natural Gas, Oil, Steam, Water
Pressure Class: 150
Fabrication: Heat Treated
Specifications Met:
NPT: ANSI/MSS SP-114, ASTM A351
BSPP and BSPT: ANSI/MSS SP-114
Pipe Nipples and Pipe: Use Schedule 40 stainless steel
Flanges: Use Class 150 stainless steel

		304 Stainless Steel			316 Stainless Steel
Pipe Size	Max. Steam Pressure	Max. Pressure		Each	Max. Pressure		Each
BSPP Female
1/2	150 psi @ 350° F	300 psi @ 72° F	00000000	00000	__	000000	00
3/4	150 psi @ 350° F	300 psi @ 72° F	00000000	00000	__	000000	00
1	150 psi @ 350° F	300 psi @ 72° F	00000000	00000	__	000000	00
1 1/4	150 psi @ 350° F	300 psi @ 72° F	00000000	00000	__	000000	00
1 1/2	150 psi @ 350° F	300 psi @ 72° F	00000000	00000	__	000000	00
2	150 psi @ 350° F	300 psi @ 72° F	00000000	00000	__	000000	00
BSPT Female
1/8	150 psi @ 350° F	300 psi @ 72° F	00000000	0000	150 psi @ 72° F	00000000	00000
1/4	150 psi @ 350° F	300 psi @ 72° F	00000000	0000	150 psi @ 72° F	00000000	0000
3/8	150 psi @ 350° F	300 psi @ 72° F	00000000	0000	150 psi @ 72° F	00000000	0000
1/2	150 psi @ 350° F	300 psi @ 72° F	00000000	00000	150 psi @ 72° F	00000000	00000
3/4	150 psi @ 350° F	300 psi @ 72° F	00000000	00000	150 psi @ 72° F	00000000	00000
1	150 psi @ 350° F	300 psi @ 72° F	00000000	00000	150 psi @ 72° F	00000000	00000
1 1/4	150 psi @ 350° F	300 psi @ 72° F	00000000	00000	150 psi @ 72° F	00000000	00000
1 1/2	150 psi @ 350° F	300 psi @ 72° F	00000000	00000	150 psi @ 72° F	00000000	00000
2	150 psi @ 350° F	300 psi @ 72° F	00000000	00000	150 psi @ 72° F	00000000	00000

90° Elbow Adapters

For Use With: Air, Natural Gas, Oil, Steam, Water
Pressure Class: 150
Fabrication: Heat Treated
Specification Met:
NPT × NPT: ANSI/MSS SP-114, ASTM A351
BSPT × BSPT: ANSI/MSS SP-114
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
BSPT Female × BSPT Male
1/8	300 psi @ 72° F	150 psi @ 350° F	00000000	000000
1/4	300 psi @ 72° F	150 psi @ 350° F	00000000	00000
3/8	300 psi @ 72° F	150 psi @ 350° F	00000000	00000
1/2	300 psi @ 72° F	150 psi @ 350° F	00000000	00000
3/4	300 psi @ 72° F	150 psi @ 350° F	00000000	00000
1	300 psi @ 72° F	150 psi @ 350° F	00000000	00000
1 1/2	300 psi @ 72° F	150 psi @ 350° F	00000000	00000
2	300 psi @ 72° F	150 psi @ 350° F	00000000	00000

45° Elbow Connectors

For Use With: Air, Natural Gas, Oil, Steam, Water
Pressure Class: 150
Fabrication: Heat Treated
Specifications Met:
NPT: ANSI/MSS SP-114, ASTM A351
BSPP and BSPT: ANSI/MSS SP-114
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
BSPP Female
1/2	300 psi @ 72° F	150 psi @ 350° F	00000000	000000
3/4	300 psi @ 72° F	150 psi @ 350° F	00000000	00000
1	300 psi @ 72° F	150 psi @ 350° F	00000000	00000
1 1/4	300 psi @ 72° F	150 psi @ 350° F	00000000	00000
1 1/2	300 psi @ 72° F	150 psi @ 350° F	00000000	00000
2	300 psi @ 72° F	150 psi @ 350° F	00000000	00000
BSPT Female
1/8	300 psi @ 72° F	150 psi @ 350° F	00000000	0000
1/4	300 psi @ 72° F	150 psi @ 350° F	00000000	0000
3/8	300 psi @ 72° F	150 psi @ 350° F	00000000	00000
1/2	300 psi @ 72° F	150 psi @ 350° F	00000000	00000
3/4	300 psi @ 72° F	150 psi @ 350° F	00000000	00000
1	300 psi @ 72° F	150 psi @ 350° F	00000000	00000
1 1/2	300 psi @ 72° F	150 psi @ 350° F	00000000	00000
2	300 psi @ 72° F	150 psi @ 350° F	00000000	00000

Tee Connectors

For Use With: Air, Natural Gas, Oil, Steam, Water
Pressure Class: 150
Fabrication: Heat Treated
Specification Met:
NPT: ANSI/MSS SP-114, ASTM A351
BSPP and BSPT: ANSI/MSS SP-114
Pipe Nipples and Pipe: Use Schedule 40 stainless steel
Flanges: Use Class 150 stainless steel

		304 Stainless Steel			316 Stainless Steel
Pipe Size	Max. Steam Pressure	Max. Pressure		Each	Max. Pressure		Each
BSPP Female
1/2	150 psi @ 350° F	300 psi @ 72° F	00000000	000000	__	000000	00
3/4	150 psi @ 350° F	300 psi @ 72° F	00000000	00000	__	000000	00
1	150 psi @ 350° F	300 psi @ 72° F	00000000	00000	__	000000	00
1 1/4	150 psi @ 350° F	300 psi @ 72° F	00000000	00000	__	000000	00
1 1/2	150 psi @ 350° F	300 psi @ 72° F	00000000	00000	__	000000	00
2	150 psi @ 350° F	300 psi @ 72° F	00000000	00000	__	000000	00
BSPT Female
1/8	150 psi @ 350° F	300 psi @ 72° F	00000000	00000	150 psi @ 72° F	00000000	000000
1/4	150 psi @ 350° F	300 psi @ 72° F	00000000	00000	150 psi @ 72° F	00000000	00000
3/8	150 psi @ 350° F	300 psi @ 72° F	00000000	00000	150 psi @ 72° F	00000000	00000
1/2	150 psi @ 350° F	300 psi @ 72° F	00000000	00000	150 psi @ 72° F	00000000	00000
3/4	150 psi @ 350° F	300 psi @ 72° F	00000000	00000	150 psi @ 72° F	00000000	00000
1	150 psi @ 350° F	300 psi @ 72° F	00000000	00000	150 psi @ 72° F	00000000	00000
1 1/4	150 psi @ 350° F	300 psi @ 72° F	00000000	00000	150 psi @ 72° F	00000000	00000
1 1/2	150 psi @ 350° F	300 psi @ 72° F	00000000	00000	150 psi @ 72° F	00000000	00000
2	150 psi @ 350° F	300 psi @ 72° F	00000000	00000	150 psi @ 72° F	00000000	00000

Cross Connectors

For Use With: Air, Natural Gas, Oil, Steam, Water
Pressure Class: 150
Fabrication: Heat Treated
Specifications Met:
NPT: ANSI/MSS SP-114, ASTM A351
BSPT: ANSI/MSS SP-114
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
BSPT Female
1/8	300 psi @ 72° F	150 psi @ 350° F	00000000	000000
1/4	300 psi @ 72° F	150 psi @ 350° F	00000000	00000
3/8	300 psi @ 72° F	150 psi @ 350° F	00000000	00000
1/2	300 psi @ 72° F	150 psi @ 350° F	00000000	00000
3/4	300 psi @ 72° F	150 psi @ 350° F	00000000	00000
1	300 psi @ 72° F	150 psi @ 350° F	00000000	00000
1 1/2	300 psi @ 72° F	150 psi @ 350° F	00000000	00000
2	300 psi @ 72° F	150 psi @ 350° F	00000000	000000

Caps

For Use With: Air, Natural Gas, Oil, Steam, Water
Pressure Class: 150
Fabrication: Heat Treated
Specifications Met:
NPT: ANSI/MSS SP-114, ASTM A351
BSPT: ANSI/MSS SP-114
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
BSPT Female
1/8	300 psi @ 72° F	150 psi @ 350° F	00000000	00000
1/4	300 psi @ 72° F	150 psi @ 350° F	00000000	0000
3/8	300 psi @ 72° F	150 psi @ 350° F	00000000	0000
1/2	300 psi @ 72° F	150 psi @ 350° F	00000000	0000
3/4	300 psi @ 72° F	150 psi @ 350° F	00000000	0000
1	300 psi @ 72° F	150 psi @ 350° F	00000000	00000
1 1/2	300 psi @ 72° F	150 psi @ 350° F	00000000	00000
2	300 psi @ 72° F	150 psi @ 350° F	00000000	00000

Plugs with External Hex Drive

For Use With: Air, Natural Gas, Oil, Steam, Water
Pressure Class:
NPT and BSPT: 150
Fabrication:
NPT and BSPT: Heat Treated
Specifications Met:
NPT: ANSI/MSS SP-114, ASTM A351
Metric and BSPP: DIN 910
BSPT: ANSI/MSS SP-114
Pipe Nipples and Pipe:
NPT and BSPT: Use Schedule 40 stainless steel
Flanges:
NPT and BSPT: Use Class 150 stainless steel

		304 Stainless Steel				316 Stainless Steel
Pipe Size	Plug Construction	Max. Pressure	Max. Steam Pressure		Each	Max. Pressure	Max. Steam Pressure		Each
BSPT Male
1/8	Hollow	__	__	000000	00	150 psi @ 72° F	150 psi @ 360° F	00000000	00000
1/8	Solid	300 psi @ 72° F	150 psi @ 350° F	00000000	00000	__	__	000000	00
1/4	Hollow	__	__	000000	00	150 psi @ 72° F	150 psi @ 360° F	00000000	0000
1/4	Solid	300 psi @ 72° F	150 psi @ 350° F	00000000	0000	__	__	000000	00
3/8	Hollow	__	__	000000	00	150 psi @ 72° F	150 psi @ 360° F	00000000	0000
3/8	Solid	300 psi @ 72° F	150 psi @ 350° F	00000000	0000	__	__	000000	00
1/2	Hollow	300 psi @ 72° F	150 psi @ 350° F	00000000	0000	150 psi @ 72° F	150 psi @ 360° F	00000000	0000
3/4	Hollow	300 psi @ 72° F	150 psi @ 350° F	00000000	0000	150 psi @ 72° F	150 psi @ 360° F	00000000	0000
1	Hollow	300 psi @ 72° F	150 psi @ 350° F	00000000	00000	150 psi @ 72° F	150 psi @ 360° F	00000000	00000
1 1/4	Hollow	300 psi @ 72° F	150 psi @ 350° F	00000000	00000	150 psi @ 72° F	150 psi @ 360° F	00000000	00000
1 1/2	Hollow	300 psi @ 72° F	150 psi @ 350° F	00000000	00000	150 psi @ 72° F	150 psi @ 360° F	00000000	00000
2	Hollow	300 psi @ 72° F	150 psi @ 350° F	00000000	00000	150 psi @ 72° F	150 psi @ 360° F	00000000	00000

Plugs with External Square Drive

For Use With: Air, Natural Gas, Oil, Steam, Water
Pressure Class: 150
Fabrication: Heat Treated
Specifications Met:
NPT: ANSI/MSS SP-114, ASTM A351
BSPT: ANSI/MSS SP-114
Pipe Nipples and Pipe: Use Schedule 40 stainless steel
Flanges: Use Class 150 stainless steel

304 Stainless Steel
Pipe Size	Plug Construction	Max. Pressure	Max. Steam Pressure		Each
BSPT Male
1/8	Solid	300 psi @ 72° F	150 psi @ 350° F	00000000	00000
1/4	Solid	300 psi @ 72° F	150 psi @ 350° F	00000000	0000
3/8	Solid	300 psi @ 72° F	150 psi @ 350° F	00000000	0000
1/2	Hollow	300 psi @ 72° F	150 psi @ 350° F	00000000	0000
3/4	Hollow	300 psi @ 72° F	150 psi @ 350° F	00000000	0000
1	Hollow	300 psi @ 72° F	150 psi @ 350° F	00000000	00000
1 1/4	Hollow	300 psi @ 72° F	150 psi @ 350° F	00000000	00000
1 1/2	Hollow	300 psi @ 72° F	150 psi @ 350° F	00000000	00000
2	Hollow	300 psi @ 72° F	150 psi @ 350° F	00000000	00000
316 Stainless Steel
BSPT Male
1/8	Solid	150 psi @ 72° F	150 psi @ 360° F	00000000	0000
1/4	Solid	150 psi @ 72° F	150 psi @ 360° F	00000000	0000
3/8	Solid	150 psi @ 72° F	150 psi @ 360° F	00000000	0000
1/2	Hollow	150 psi @ 72° F	150 psi @ 360° F	00000000	0000
3/4	Hollow	150 psi @ 72° F	150 psi @ 360° F	00000000	0000
1	Hollow	150 psi @ 72° F	150 psi @ 360° F	00000000	00000
1 1/4	Hollow	150 psi @ 72° F	150 psi @ 360° F	00000000	00000
1 1/2	Hollow	150 psi @ 72° F	150 psi @ 360° F	00000000	00000
2	Hollow	150 psi @ 72° F	150 psi @ 360° F	00000000	00000

Standard-Wall Stainless Steel Threaded Pipe Nipples and Pipe

Designed for low-pressure flow applications, this pipe is also known as Schedule 40.

304 stainless steel pipe offers very good corrosion resistance. 316 stainless steel pipe has excellent corrosion resistance.

Welded pipe has a weld bead on the inside.

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.

BSPT Fully Threaded—304/304L Stainless Steel

For Use With: Natural Gas, Oil, Steam, Water, Air
Specifications Met: ASTM A312
Fittings: Use Class 150 stainless steel
Flanges: Use Class 150 stainless steel

Pipe Size	Lg.	Construction		Each
1/8	3/4"	Welded	0000000	00000
1/4	7/8"	Welded	0000000	0000
3/8	1"	Welded	0000000	0000
1/2	1 1/8"	Welded	0000000	0000
3/4	1 3/8"	Welded	0000000	0000
1	1 1/2"	Welded	0000000	0000
1 1/2	1 3/4"	Welded	0000000	00000
2	2"	Welded	0000000	00000

BSPT Threaded on Both Ends—304/304L Stainless Steel

For Use With: Natural Gas, Oil, Steam, Water, Air
Specifications Met: ASTM A312
1 1/4 Pipe Size: ASTM A733, ISO 7.1
Fittings: Use Class 150 stainless steel
Flanges: Use Class 150 stainless steel

1/8 Pipe Size
Lg.	Construction		Each
1 1/2"	Welded	0000000	00000
2"	Welded	00000000	0000
3"	Welded	0000000	0000
4"	Welded	00000000	0000
6"	Welded	00000000	0000
12"	Welded	00000000	00000
36"	Welded	0000000	00000
1/4 Pipe Size
1 1/2"	Welded	0000000	0000
2"	Welded	00000000	0000
3"	Welded	0000000	0000
4"	Welded	00000000	0000
6"	Welded	00000000	0000
12"	Welded	00000000	00000
36"	Welded	0000000	00000
3/8 Pipe Size
1 1/2"	Welded	0000000	0000
2"	Welded	00000000	0000
3"	Welded	0000000	0000
4"	Welded	00000000	0000
6"	Welded	00000000	0000
12"	Welded	00000000	00000
36"	Welded	0000000	00000
1/2 Pipe Size
1 1/2"	Welded	0000000	0000
2"	Welded	00000000	0000
3"	Welded	0000000	0000
4"	Welded	00000000	0000
6"	Welded	00000000	00000
12"	Welded	00000000	00000
36"	Welded	0000000	00000
3/4 Pipe Size
1 1/2"	Welded	0000000	0000
2"	Welded	00000000	0000
3"	Welded	0000000	0000
4"	Welded	00000000	0000
6"	Welded	00000000	00000
12"	Welded	00000000	00000
36"	Welded	0000000	00000

1 Pipe Size
Lg.	Construction		Each
2"	Welded	00000000	00000
3"	Welded	0000000	0000
4"	Welded	00000000	00000
6"	Welded	00000000	00000
12"	Welded	00000000	00000
36"	Welded	0000000	00000
1 1/4 Pipe Size
1 5/8"	Welded	00000000	0000
2"	Welded	00000000	00000
3"	Welded	00000000	00000
4"	Welded	00000000	00000
6"	Welded	00000000	00000
12"	Welded	00000000	00000
36"	Welded	00000000	000000
1 1/2 Pipe Size
2"	Welded	00000000	00000
3"	Welded	0000000	00000
4"	Welded	00000000	00000
6"	Welded	00000000	00000
12"	Welded	00000000	00000
36"	Welded	0000000	00000
2 Pipe Size
3"	Welded	0000000	00000
4"	Welded	00000000	00000
6"	Welded	00000000	00000
12"	Welded	00000000	00000
36"	Welded	0000000	000000

BSPT × NPT Fully Threaded—304/304L Stainless Steel

For Use With: Natural Gas, Oil, Steam, Water, Air
Specifications Met: ASTM A312
Fittings: Use Class 150 stainless steel
Flanges: Use Class 150 stainless steel

Pipe Size	Lg.	Construction		Each
1/8	3/4"	Welded	00000000	00000
1/4	7/8"	Welded	00000000	0000
3/8	1"	Welded	00000000	0000
1/2	1 1/8"	Welded	00000000	0000
3/4	1 3/8"	Welded	00000000	0000
1	1 1/2"	Welded	00000000	0000
1 1/2	1 3/4"	Welded	00000000	00000
2	2"	Welded	00000000	00000

BSPT × NPT Threaded on Both Ends—304/304L Stainless Steel

For Use With: Natural Gas, Oil, Steam, Water, Air
Specifications Met: ASTM A312
1 1/4 Pipe Size: ASTM A733, ASME B1.20.1, ISO 7.1
Fittings: Use Class 150 stainless steel
Flanges: Use Class 150 stainless steel

1/8 Pipe Size
Lg.	Construction		Each
1 1/2"	Welded	00000000	00000
2"	Welded	00000000	0000
3"	Welded	00000000	0000
4"	Welded	00000000	0000
6"	Welded	00000000	0000
12"	Welded	00000000	00000
1/4 Pipe Size
1 1/2"	Welded	00000000	0000
2"	Welded	00000000	0000
3"	Welded	00000000	0000
4"	Welded	00000000	0000
6"	Welded	00000000	0000
12"	Welded	00000000	00000
36"	Welded	00000000	00000
3/8 Pipe Size
1 1/2"	Welded	00000000	0000
2"	Welded	00000000	0000
3"	Welded	00000000	0000
4"	Welded	00000000	0000
6"	Welded	00000000	0000
12"	Welded	00000000	00000
36"	Welded	00000000	00000
1/2 Pipe Size
1 1/2"	Welded	00000000	0000
2"	Welded	00000000	0000
3"	Welded	00000000	0000
4"	Welded	00000000	0000
6"	Welded	00000000	00000
12"	Welded	00000000	00000
36"	Welded	00000000	00000
3/4 Pipe Size
1 1/2"	Welded	00000000	0000
2"	Welded	00000000	0000
3"	Welded	00000000	0000
4"	Welded	00000000	0000
6"	Welded	00000000	00000
12"	Welded	00000000	00000
36"	Welded	00000000	00000

1 Pipe Size
Lg.	Construction		Each
2"	Welded	00000000	00000
3"	Welded	00000000	0000
4"	Welded	00000000	00000
6"	Welded	00000000	00000
12"	Welded	00000000	00000
36"	Welded	00000000	00000
1 1/4 Pipe Size
1 5/8"	Welded	00000000	0000
2"	Welded	00000000	00000
3"	Welded	0000000	00000
4"	Welded	00000000	00000
6"	Welded	00000000	00000
12"	Welded	00000000	00000
36"	Welded	00000000	000000
1 1/2 Pipe Size
2"	Welded	00000000	00000
3"	Welded	00000000	00000
4"	Welded	00000000	00000
6"	Welded	00000000	00000
12"	Welded	00000000	00000
2 Pipe Size
3"	Welded	00000000	00000
4"	Welded	00000000	00000
6"	Welded	00000000	00000
12"	Welded	00000000	00000

BSPT Threaded on Both Ends—316/316L Stainless Steel

For Use With: Natural Gas, Oil, Steam, Water, Air
Specifications Met: ASTM A312, ASTM A733, ISO 7.1
Fittings: Use Class 150 stainless steel
Flanges: Use Class 150 stainless steel

1/8 Pipe Size
Lg.	Construction		Each
3/4"	Welded	00000000	00000
1 1/2"	Welded	0000000	0000
2"	Welded	00000000	0000
3"	Welded	00000000	0000
4"	Welded	00000000	0000
6"	Welded	00000000	00000
12"	Welded	0000000	00000
36"	Welded	00000000	00000
1/4 Pipe Size
7/8"	Welded	00000000	0000
1 1/2"	Welded	00000000	0000
2"	Welded	00000000	0000
3"	Welded	00000000	0000
4"	Welded	00000000	0000
6"	Welded	00000000	00000
12"	Welded	00000000	00000
36"	Welded	0000000	00000
3/8 Pipe Size
3/4"	Welded	00000000	0000
1 1/2"	Welded	00000000	0000
2"	Welded	00000000	0000
3"	Welded	00000000	0000
4"	Welded	00000000	00000
6"	Welded	00000000	00000
12"	Welded	00000000	00000
36"	Welded	00000000	00000
1/2 Pipe Size
1 1/8"	Welded	00000000	0000
1 1/2"	Welded	00000000	0000
2"	Welded	00000000	0000
3"	Welded	00000000	00000
4"	Welded	00000000	00000
6"	Welded	00000000	00000
12"	Welded	00000000	00000
36"	Welded	00000000	000000
3/4 Pipe Size
1 3/8"	Welded	00000000	0000
1 1/2"	Welded	00000000	0000
2"	Welded	00000000	0000
3"	Welded	00000000	00000
4"	Welded	00000000	00000
6"	Welded	00000000	00000
12"	Welded	00000000	00000
36"	Welded	00000000	000000

1 Pipe Size
Lg.	Construction		Each
1 1/2"	Welded	00000000	00000
2"	Welded	0000000	00000
3"	Welded	00000000	00000
4"	Welded	00000000	00000
6"	Welded	00000000	00000
12"	Welded	00000000	00000
36"	Welded	00000000	000000
1 1/4 Pipe Size
1 5/8"	Welded	00000000	00000
2"	Welded	00000000	00000
3"	Welded	00000000	00000
4"	Welded	00000000	00000
6"	Welded	00000000	00000
12"	Welded	00000000	00000
36"	Welded	00000000	000000
1 1/2 Pipe Size
1 3/4"	Welded	00000000	00000
2"	Welded	00000000	00000
3"	Welded	0000000	00000
4"	Welded	00000000	00000
6"	Welded	00000000	00000
12"	Welded	00000000	00000
36"	Welded	00000000	000000
2 Pipe Size
2"	Welded	00000000	00000
3"	Welded	00000000	00000
4"	Welded	0000000	00000
6"	Welded	00000000	00000
12"	Welded	00000000	000000
36"	Welded	00000000	000000

BSPT × NPT Threaded on Both Ends—316/316L Stainless Steel

For Use With: Natural Gas, Oil, Steam, Water, Air
Specifications Met: ASTM A733, ASME B1.20.1, ISO 7.1
Fittings: Use Class 150 stainless steel
Flanges: Use Class 150 stainless steel

1/8 Pipe Size
Lg.	Construction		Each
3/4"	Welded	00000000	00000
1 1/2"	Welded	00000000	0000
2"	Welded	00000000	0000
3"	Welded	000000	0000
4"	Welded	00000000	0000
6"	Welded	00000000	00000
12"	Welded	00000000	00000
36"	Welded	00000000	00000
1/4 Pipe Size
7/8"	Welded	00000000	0000
1 1/2"	Welded	00000000	0000
2"	Welded	00000000	0000
3"	Welded	00000000	0000
4"	Welded	0000000	0000
6"	Welded	00000000	00000
12"	Welded	00000000	00000
36"	Welded	00000000	00000
3/8 Pipe Size
1"	Welded	0000000	0000
1 1/2"	Welded	00000000	0000
2"	Welded	00000000	0000
3"	Welded	00000000	0000
4"	Welded	00000000	00000
6"	Welded	0000000	00000
12"	Welded	00000000	00000
36"	Welded	00000000	00000
1/2 Pipe Size
1 1/8"	Welded	00000000	0000
1 1/2"	Welded	0000000	0000
2"	Welded	00000000	0000
3"	Welded	00000000	00000
4"	Welded	00000000	00000
6"	Welded	00000000	00000
12"	Welded	0000000	00000
36"	Welded	00000000	000000
3/4 Pipe Size
1 3/8"	Welded	00000000	0000
1 1/2"	Welded	00000000	0000
2"	Welded	00000000	0000
3"	Welded	00000000	00000
4"	Welded	00000000	00000
6"	Welded	00000000	00000
12"	Welded	00000000	00000
36"	Welded	0000000	000000

1 Pipe Size
Lg.	Construction		Each
1 1/2"	Welded	00000000	00000
2"	Welded	00000000	00000
3"	Welded	00000000	00000
4"	Welded	00000000	00000
6"	Welded	00000000	00000
12"	Welded	00000000	00000
36"	Welded	00000000	000000
1 1/4 Pipe Size
1 5/8"	Welded	00000000	00000
2"	Welded	00000000	00000
3"	Welded	00000000	00000
4"	Welded	00000000	00000
6"	Welded	00000000	00000
12"	Welded	00000000	00000
36"	Welded	00000000	000000
1 1/2 Pipe Size
1 3/4"	Welded	00000000	00000
2"	Welded	00000000	00000
3"	Welded	00000000	00000
4"	Welded	00000000	00000
6"	Welded	00000000	00000
12"	Welded	00000000	00000
36"	Welded	00000000	000000
2 Pipe Size
2"	Welded	00000000	00000
3"	Welded	00000000	00000
4"	Welded	00000000	00000
6"	Welded	00000000	00000
12"	Welded	00000000	000000
36"	Welded	00000000	000000

Low-Pressure Stainless Steel Threaded Pipe Flanges

Also known as Pressure Class 150 flanges, these are designed for low-pressure pipe applications. Bolt two flat-surface flanges or two raised-surface flanges of the same size together with a gasket (sold separately) to create an access point within a line.

304 stainless steel flanges have very good corrosion resistance.

Forged flanges have better strength than cast flanges. They are also called ANSI flanges.

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

Flanges—Forged

Front

Raised Surface on Back

For Use With: Air, Natural Gas, Oil, Steam, Water
Pressure Class: 150
Specifications Met:
Alloy 20 flanges: ASME B16.5
All other flanges: ASME B16.5, ASTM A182
Fittings: Use Class 150 stainless steel
Pipe Nipples and Pipe: Use Schedule 40 stainless steel

			Bolt Hole					304/304L Stainless Steel
Pipe Size	Flange OD	For Bolt Dia.	Dia.	No. of	Bolt Circle Dia.	Max. Pressure	Max. Steam Pressure		Each
BSPT
1/2	3 1/2"	1/2"	0.62"	4	2 3/8"	230 psi @ 72° F	150 psi @ 360° F	0000000	000000
3/4	3 7/8"	1/2"	0.62"	4	2 3/4"	230 psi @ 72° F	150 psi @ 360° F	0000000	00000
1	4 1/4"	1/2"	0.62"	4	3 1/8"	230 psi @ 72° F	150 psi @ 360° F	0000000	000000
2	6"	5/8"	0.75"	4	4 3/4"	230 psi @ 72° F	150 psi @ 360° F	0000000	000000