Iron (Class 300) Medium-Pressure Threaded Pipe Fittings

	Pipe Size Pipe Size

1/8

1/4

	Type Type


Connector	Union

Reducer	Adapter

Plug	Cap

Flange

	Shape Shape


Straight	90° Elbow

Cap/Plug	Tee

45° Elbow	Cross

	Connection Style Connection Style

Threaded

Flanged

	For Use With For Use With

	Material Material

Iron

Steel

	Finish Finish

Black Coated

Galvanized

	Maximum Pressure Maximum Pressure

300 psi @ 72° F

600 psi @ 72° F

	Gender Gender

Female

Male

	Specifications Met Specifications Met

ASME

ASTM

	Maximum Steam Pressure Maximum Steam Pressure

300 psi @ 550° F

230 psi @ 550° F

Not Rated

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

DFARS Specialty Metals
COTS-Exempt

	Length Length

	Drive Style Drive Style


External Square	Hex

	Drive Size Drive Size

3/4"

	Body Shape Body Shape


Hex	Square

	Flange OD Flange OD

	Number of Bolt Holes Number of Bolt Holes

	Hex Width Hex Width

	For Bolt Diameter For Bolt Diameter

5/8"

3/4"

7/8"

	Bolt Circle Diameter Bolt Circle Diameter

	Bolt Hole Diameter Bolt Hole Diameter

0.62"

3/4"

0.88"

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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.

Medium-Pressure Iron and Steel Threaded Pipe Fittings

With better strength than our low-pressure iron and steel pipe fittings, these can handle medium-pressure applications. They are for use in noncorrosive environments.

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.

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

Straight Connectors

For Use With: Air, Steam, Oil, Water, Natural Gas
Class: 300
Specifications Met: ASTM A197, UL Listed, ASME B16.3, ASME B1.20.1
Pipe Nipples and Pipe: Use Schedule 80 steel
Flanges: Use Class 300 or 600 steel

NPT Female
Pipe Size	Max. Pressure	Max. Steam Pressure	Material		Each
1/4	300 psi @ 72° F	300 psi @ 550° F	Iron	00000000	000000
3/8	300 psi @ 72° F	300 psi @ 550° F	Iron	00000000	00000
1/2	300 psi @ 72° F	300 psi @ 550° F	Iron	00000000	00000
3/4	300 psi @ 72° F	300 psi @ 550° F	Iron	00000000	00000
1	300 psi @ 72° F	300 psi @ 550° F	Iron	00000000	00000
1 1/4	300 psi @ 72° F	300 psi @ 550° F	Iron	00000000	00000
1 1/2	300 psi @ 72° F	300 psi @ 550° F	Iron	00000000	00000
2	300 psi @ 72° F	300 psi @ 550° F	Iron	00000000	00000
2 1/2	300 psi @ 72° F	300 psi @ 550° F	Iron	00000000	00000
3	300 psi @ 72° F	300 psi @ 550° F	Iron	00000000	000000

Union Straight Connectors

Exploded View

For Use With: Air, Steam, Oil, Water, Natural Gas
Class: 300
Specifications Met: ASTM A197, UL Listed, ASME B16.39, ASME B1.20.1
Pipe Nipples and Pipe: Use Schedule 80 steel
Flanges: Use Class 300 or 600 steel

NPT Female
Pipe Size	Max. Pressure	Max. Steam Pressure	Material		Each
1/8	600 psi @ 72° F	230 psi @ 550° F	Iron	00000000	000000
1/4	600 psi @ 72° F	230 psi @ 550° F	Iron	00000000	00000
3/8	600 psi @ 72° F	230 psi @ 550° F	Iron	00000000	00000
1/2	600 psi @ 72° F	230 psi @ 550° F	Iron	00000000	00000
3/4	600 psi @ 72° F	230 psi @ 550° F	Iron	00000000	00000
1	600 psi @ 72° F	230 psi @ 550° F	Iron	00000000	00000
1 1/4	600 psi @ 72° F	230 psi @ 550° F	Iron	00000000	00000
1 1/2	600 psi @ 72° F	230 psi @ 550° F	Iron	00000000	00000
2	600 psi @ 72° F	230 psi @ 550° F	Iron	00000000	00000
2 1/2	600 psi @ 72° F	230 psi @ 550° F	Iron	00000000	000000
3	600 psi @ 72° F	230 psi @ 550° F	Iron	00000000	000000

Straight Reducers

For Use With: Air, Steam, Oil, Water, Natural Gas
Class: 300
Specifications Met: ASTM A197, UL Listed, ASME B16.3, ASME B1.20.1
Pipe Nipples and Pipe: Use Schedule 80 steel
Flanges: Use Class 300 or 600 steel

Pipe Size
(A)	(B)	Max. Pressure	Max. Steam Pressure	Material		Each
NPT Female
3/8	1/4	300 psi @ 72° F	300 psi @ 550° F	Iron	00000000	000000
1/2	1/4	300 psi @ 72° F	300 psi @ 550° F	Iron	00000000	00000
1/2	3/8	300 psi @ 72° F	300 psi @ 550° F	Iron	00000000	00000
3/4	1/4	300 psi @ 72° F	300 psi @ 550° F	Iron	00000000	00000
3/4	3/8	300 psi @ 72° F	300 psi @ 550° F	Iron	00000000	00000
3/4	1/2	300 psi @ 72° F	300 psi @ 550° F	Iron	00000000	00000
1	1/4	300 psi @ 72° F	300 psi @ 550° F	Iron	00000000	00000
1	3/8	300 psi @ 72° F	300 psi @ 550° F	Iron	00000000	00000
1	1/2	300 psi @ 72° F	300 psi @ 550° F	Iron	00000000	00000
1	3/4	300 psi @ 72° F	300 psi @ 550° F	Iron	00000000	00000
1 1/4	1/2	300 psi @ 72° F	300 psi @ 550° F	Iron	00000000	00000
1 1/4	3/4	300 psi @ 72° F	300 psi @ 550° F	Iron	00000000	00000
1 1/4	1	300 psi @ 72° F	300 psi @ 550° F	Iron	00000000	00000
1 1/2	1/2	300 psi @ 72° F	300 psi @ 550° F	Iron	00000000	00000
1 1/2	3/4	300 psi @ 72° F	300 psi @ 550° F	Iron	00000000	00000
1 1/2	1	300 psi @ 72° F	300 psi @ 550° F	Iron	00000000	00000
1 1/2	1 1/4	300 psi @ 72° F	300 psi @ 550° F	Iron	00000000	00000
2	1/2	300 psi @ 72° F	300 psi @ 550° F	Iron	00000000	00000
2	3/4	300 psi @ 72° F	300 psi @ 550° F	Iron	00000000	00000
2	1	300 psi @ 72° F	300 psi @ 550° F	Iron	00000000	00000
2	1 1/4	300 psi @ 72° F	300 psi @ 550° F	Iron	00000000	00000
2	1 1/2	300 psi @ 72° F	300 psi @ 550° F	Iron	00000000	00000
2 1/2	1 1/2	300 psi @ 72° F	300 psi @ 550° F	Iron	00000000	000000
2 1/2	2	300 psi @ 72° F	300 psi @ 550° F	Iron	00000000	000000
3	1 1/2	300 psi @ 72° F	300 psi @ 550° F	Iron	00000000	000000
3	2	300 psi @ 72° F	300 psi @ 550° F	Iron	00000000	000000
3	2 1/2	300 psi @ 72° F	300 psi @ 550° F	Iron	00000000	000000

90° Elbow Connectors

For Use With: Air, Steam, Oil, Water, Natural Gas
Class: 300
Specifications Met: ASTM A197, UL Listed, ASME B16.3, ASME B1.20.1
Pipe Nipples and Pipe: Use Schedule 80 steel
Flanges: Use Class 300 or 600 steel

NPT Female
Pipe Size	Max. Pressure	Max. Steam Pressure	Material		Each
1/4	300 psi @ 72° F	300 psi @ 550° F	Iron	00000000	000000
3/8	300 psi @ 72° F	300 psi @ 550° F	Iron	00000000	00000
1/2	300 psi @ 72° F	300 psi @ 550° F	Iron	00000000	00000
3/4	300 psi @ 72° F	300 psi @ 550° F	Iron	00000000	00000
1	300 psi @ 72° F	300 psi @ 550° F	Iron	00000000	00000
1 1/4	300 psi @ 72° F	300 psi @ 550° F	Iron	00000000	00000
1 1/2	300 psi @ 72° F	300 psi @ 550° F	Iron	00000000	00000
2	300 psi @ 72° F	300 psi @ 550° F	Iron	00000000	00000
2 1/2	300 psi @ 72° F	300 psi @ 550° F	Iron	00000000	000000
3	300 psi @ 72° F	300 psi @ 550° F	Iron	00000000	000000

Union 90° Elbow Connectors

Exploded View

For Use With: Air, Steam, Oil, Water, Natural Gas
Class: 300
Specifications Met: ASTM A197, UL Listed, ASME B16.39, ASME B1.20.1
Pipe Nipples and Pipe: Use Schedule 80 steel
Flanges: Use Class 300 or 600 steel

NPT Female
Pipe Size	Max. Pressure	Max. Steam Pressure	Material		Each
3/8	600 psi @ 72° F	230 psi @ 550° F	Iron	00000000	000000
1/2	600 psi @ 72° F	230 psi @ 550° F	Iron	00000000	00000
3/4	600 psi @ 72° F	230 psi @ 550° F	Iron	00000000	00000
1	600 psi @ 72° F	230 psi @ 550° F	Iron	00000000	00000

90° Elbow Adapters

For Use With: Air, Steam, Oil, Water, Natural Gas
Class: 300
Specifications Met: ASTM A197, UL Listed, ASME B16.3, ASME B1.20.1
Pipe Nipples and Pipe: Use Schedule 80 steel
Flanges: Use Class 300 or 600 steel

NPT Female × NPT Male
Pipe Size	Max. Pressure	Max. Steam Pressure	Material		Each
1/4	300 psi @ 72° F	300 psi @ 550° F	Iron	00000000	000000
3/8	300 psi @ 72° F	300 psi @ 550° F	Iron	00000000	00000
1/2	300 psi @ 72° F	300 psi @ 550° F	Iron	00000000	00000
3/4	300 psi @ 72° F	300 psi @ 550° F	Iron	00000000	00000
1	300 psi @ 72° F	300 psi @ 550° F	Iron	00000000	00000
1 1/4	300 psi @ 72° F	300 psi @ 550° F	Iron	00000000	00000
1 1/2	300 psi @ 72° F	300 psi @ 550° F	Iron	00000000	00000
2	300 psi @ 72° F	300 psi @ 550° F	Iron	00000000	00000
3	300 psi @ 72° F	300 psi @ 550° F	Iron	00000000	000000

90° Elbow Reducers

For Use With: Air, Steam, Oil, Water, Natural Gas
Class: 300
Specifications Met: ASTM A197, UL Listed, ASME B16.3, ASME B1.20.1
Pipe Nipples and Pipe: Use Schedule 80 steel
Flanges: Use Class 300 or 600 steel

Pipe Size
(A)	(B)	Max. Pressure	Max. Steam Pressure	Material		Each
NPT Female
3/8	1/4	300 psi @ 72° F	300 psi @ 550° F	Iron	00000000	000000
1/2	3/8	300 psi @ 72° F	300 psi @ 550° F	Iron	00000000	00000
3/4	1/2	300 psi @ 72° F	300 psi @ 550° F	Iron	00000000	00000
1	1/2	300 psi @ 72° F	300 psi @ 550° F	Iron	00000000	00000
1	3/4	300 psi @ 72° F	300 psi @ 550° F	Iron	00000000	00000
1 1/4	3/4	300 psi @ 72° F	300 psi @ 550° F	Iron	00000000	00000
1 1/4	1	300 psi @ 72° F	300 psi @ 550° F	Iron	00000000	00000
1 1/2	1	300 psi @ 72° F	300 psi @ 550° F	Iron	00000000	00000
1 1/2	1 1/4	300 psi @ 72° F	300 psi @ 550° F	Iron	00000000	00000
2	1 1/4	300 psi @ 72° F	300 psi @ 550° F	Iron	00000000	000000
2	1 1/2	300 psi @ 72° F	300 psi @ 550° F	Iron	00000000	00000

45° Elbow Connectors

For Use With: Air, Steam, Oil, Water, Natural Gas
Class: 300
Specifications Met: ASTM A197, UL Listed, ASME B16.3, ASME B1.20.1
Pipe Nipples and Pipe: Use Schedule 80 steel
Flanges: Use Class 300 or 600 steel

NPT Female
Pipe Size	Max. Pressure	Max. Steam Pressure	Material		Each
1/4	300 psi @ 72° F	300 psi @ 550° F	Iron	00000000	000000
3/8	300 psi @ 72° F	300 psi @ 550° F	Iron	00000000	00000
1/2	300 psi @ 72° F	300 psi @ 550° F	Iron	00000000	00000
3/4	300 psi @ 72° F	300 psi @ 550° F	Iron	00000000	00000
1	300 psi @ 72° F	300 psi @ 550° F	Iron	00000000	00000
1 1/4	300 psi @ 72° F	300 psi @ 550° F	Iron	00000000	00000
1 1/2	300 psi @ 72° F	300 psi @ 550° F	Iron	00000000	00000
2	300 psi @ 72° F	300 psi @ 550° F	Iron	00000000	00000
2 1/2	300 psi @ 72° F	300 psi @ 550° F	Iron	00000000	000000
3	300 psi @ 72° F	300 psi @ 550° F	Iron	00000000	000000

45° Elbow Adapters

For Use With: Air, Steam, Oil, Water, Natural Gas
Class: 300
Specifications Met: ASTM A197, UL Listed, ASME B16.3, ASME B1.20.1
Pipe Nipples and Pipe: Use Schedule 80 steel
Flanges: Use Class 300 or 600 steel

NPT Female × NPT Male
Pipe Size	Max. Pressure	Max. Steam Pressure	Material		Each
1/2	300 psi @ 72° F	300 psi @ 550° F	Iron	00000000	000000
3/4	300 psi @ 72° F	300 psi @ 550° F	Iron	00000000	00000
1	300 psi @ 72° F	300 psi @ 550° F	Iron	00000000	00000
1 1/4	300 psi @ 72° F	300 psi @ 550° F	Iron	00000000	00000
1 1/2	300 psi @ 72° F	300 psi @ 550° F	Iron	00000000	00000
2	300 psi @ 72° F	300 psi @ 550° F	Iron	00000000	000000

Tee Connectors

For Use With: Air, Steam, Oil, Water, Natural Gas
Class: 300
Specifications Met: ASTM A197, UL Listed, ASME B16.3, ASME B1.20.1
Pipe Nipples and Pipe: Use Schedule 80 steel
Flanges: Use Class 300 or 600 steel

NPT Female
Pipe Size	Max. Pressure	Max. Steam Pressure	Material		Each
1/4	300 psi @ 72° F	300 psi @ 550° F	Iron	00000000	000000
3/8	300 psi @ 72° F	300 psi @ 550° F	Iron	00000000	00000
1/2	300 psi @ 72° F	300 psi @ 550° F	Iron	00000000	00000
3/4	300 psi @ 72° F	300 psi @ 550° F	Iron	00000000	00000
1	300 psi @ 72° F	300 psi @ 550° F	Iron	00000000	00000
1 1/4	300 psi @ 72° F	300 psi @ 550° F	Iron	00000000	00000
1 1/2	300 psi @ 72° F	300 psi @ 550° F	Iron	00000000	00000
2	300 psi @ 72° F	300 psi @ 550° F	Iron	00000000	00000
2 1/2	300 psi @ 72° F	300 psi @ 550° F	Iron	00000000	000000
3	300 psi @ 72° F	300 psi @ 550° F	Iron	00000000	000000

Inline Tee Reducers

For Use With: Air, Steam, Oil, Water, Natural Gas
Class: 300
Specifications Met: ASTM A197, UL Listed, ASME B16.3, ASME B1.20.1
Pipe Nipples and Pipe: Use Schedule 80 steel
Flanges: Use Class 300 or 600 steel

Pipe Size
(A)	(B)	Max. Pressure	Max. Steam Pressure	Material		Each
NPT Female
3/8	1/4	300 psi @ 72° F	300 psi @ 550° F	Iron	00000000	000000
1/2	1/4	300 psi @ 72° F	300 psi @ 550° F	Iron	00000000	00000
1/2	3/8	300 psi @ 72° F	300 psi @ 550° F	Iron	00000000	00000
1/2	3/4	300 psi @ 72° F	300 psi @ 550° F	Iron	00000000	00000
3/4	1/4	300 psi @ 72° F	300 psi @ 550° F	Iron	00000000	00000
3/4	3/8	300 psi @ 72° F	300 psi @ 550° F	Iron	00000000	00000
3/4	1/2	300 psi @ 72° F	300 psi @ 550° F	Iron	00000000	00000
1	1/4	300 psi @ 72° F	300 psi @ 550° F	Iron	00000000	00000
1	1/2	300 psi @ 72° F	300 psi @ 550° F	Iron	00000000	00000
1	3/4	300 psi @ 72° F	300 psi @ 550° F	Iron	00000000	00000
1 1/4	1/2	300 psi @ 72° F	300 psi @ 550° F	Iron	00000000	00000
1 1/4	3/4	300 psi @ 72° F	300 psi @ 550° F	Iron	00000000	00000
1 1/2	1/2	300 psi @ 72° F	300 psi @ 550° F	Iron	00000000	00000
1 1/2	3/4	300 psi @ 72° F	300 psi @ 550° F	Iron	00000000	00000
1 1/2	1	300 psi @ 72° F	300 psi @ 550° F	Iron	00000000	00000
1 1/2	1 1/4	300 psi @ 72° F	300 psi @ 550° F	Iron	00000000	00000
2	1/2	300 psi @ 72° F	300 psi @ 550° F	Iron	00000000	000000
2	3/4	300 psi @ 72° F	300 psi @ 550° F	Iron	00000000	000000
2	1	300 psi @ 72° F	300 psi @ 550° F	Iron	00000000	000000
2	1 1/4	300 psi @ 72° F	300 psi @ 550° F	Iron	00000000	000000
2	1 1/2	300 psi @ 72° F	300 psi @ 550° F	Iron	00000000	000000
2 1/2	1 1/2	300 psi @ 72° F	300 psi @ 550° F	Iron	00000000	000000

Cross Connectors

For Use With: Air, Steam, Oil, Water, Natural Gas
Class: 300
Specifications Met: ASTM A197, UL Listed, ASME B16.3, ASME B1.20.1
Pipe Nipples and Pipe: Use Schedule 80 steel
Flanges: Use Class 300 or 600 steel

NPT Female
Pipe Size	Max. Pressure	Max. Steam Pressure	Material		Each
1/4	300 psi @ 72° F	300 psi @ 550° F	Iron	00000000	000000
1/2	300 psi @ 72° F	300 psi @ 550° F	Iron	00000000	00000
3/4	300 psi @ 72° F	300 psi @ 550° F	Iron	00000000	00000
1	300 psi @ 72° F	300 psi @ 550° F	Iron	00000000	00000
1 1/4	300 psi @ 72° F	300 psi @ 550° F	Iron	00000000	00000
1 1/2	300 psi @ 72° F	300 psi @ 550° F	Iron	00000000	000000
2	300 psi @ 72° F	300 psi @ 550° F	Iron	00000000	000000

Caps

For Use With: Air, Steam, Oil, Water, Natural Gas
Class: 300
Specifications Met: ASTM A197, UL Listed, ASME B16.3, ASME B1.20.1
Pipe Nipples and Pipe: Use Schedule 80 steel
Flanges: Use Class 300 or 600 steel

NPT Female
Pipe Size	Max. Pressure	Max. Steam Pressure	Material		Each
1/4	300 psi @ 72° F	300 psi @ 550° F	Iron	00000000	000000
3/8	300 psi @ 72° F	300 psi @ 550° F	Iron	00000000	00000
1/2	300 psi @ 72° F	300 psi @ 550° F	Iron	00000000	00000
3/4	300 psi @ 72° F	300 psi @ 550° F	Iron	00000000	00000
1	300 psi @ 72° F	300 psi @ 550° F	Iron	00000000	00000
1 1/4	300 psi @ 72° F	300 psi @ 550° F	Iron	00000000	00000
1 1/2	300 psi @ 72° F	300 psi @ 550° F	Iron	00000000	00000
2	300 psi @ 72° F	300 psi @ 550° F	Iron	00000000	00000
2 1/2	300 psi @ 72° F	300 psi @ 550° F	Iron	00000000	00000
3	300 psi @ 72° F	300 psi @ 550° F	Iron	00000000	000000

Plugs with Hex Drive

For Use With: Air, Natural Gas, Oil, Steam, Water
Class: 300
Specifications Met: UL Listed, ASME B1.20.1
Pipe Nipples and Pipe: Use Schedule 80 steel
Flanges: Use Class 300 or 600 steel

NPT Male
Pipe Size	Drive Size	Max. Pressure	Max. Steam Pressure	Material		Each
1 1/4	3/4"	300 psi @ 72° F	300 psi @ 550° F	Steel	00000000	00000
1 1/2	1"	300 psi @ 72° F	300 psi @ 550° F	Steel	00000000	00000
2	1"	300 psi @ 72° F	300 psi @ 550° F	Steel	00000000	00000

Plugs with External Square Drive

For Use With: Air, Steam, Oil, Water, Natural Gas
Class: 300
Specifications Met: ASTM A126, UL Listed, ASME B16.14, ASME B1.20.1
Pipe Nipples and Pipe: Use Schedule 80 steel
Flanges: Use Class 300 or 600 steel

NPT Male
Pipe Size	Plug Construction	Max. Pressure	Max. Steam Pressure	Material		Each
1/2	Solid	300 psi @ 72° F	300 psi @ 550° F	Iron	00000000	00000
3/4	Solid	300 psi @ 72° F	300 psi @ 550° F	Iron	00000000	0000
1	Solid	300 psi @ 72° F	300 psi @ 550° F	Iron	00000000	0000
1 1/4	Solid	300 psi @ 72° F	300 psi @ 550° F	Iron	00000000	0000
1 1/2	Solid	300 psi @ 72° F	300 psi @ 550° F	Iron	00000000	00000
2	Solid	300 psi @ 72° F	300 psi @ 550° F	Iron	00000000	00000

Medium-Pressure Galvanized Steel Threaded Pipe Flanges

Front

Raised Surface on Back

For Use With: Air, Natural Gas, Steam, Water
Class: 300
Specifications Met: ASTM A123, ASTM A105, ASME B16.5
Pipe Nipples and Pipe: Use Schedule 80 steel
Fittings: Use Class 300 iron or steel

A galvanized finish gives these flanges fair corrosion resistance. Also known as Class 300 flanges, they can withstand medium-pressure applications. Bolt two same-size flanges together with a gasket (sold separately) to create an access point within a line.

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

			Bolt Hole
Pipe Size	Flange OD	For Bolt Dia.	Dia.	No. of	Bolt Circle Dia.	Max. Pressure		Each
NPT
1/2	3 3/4"	5/8"	0.62"	4	2 5/8"	600 psi @ 72° F	0000000	0000000
3/4	4 5/8"	3/4"	3/4"	4	3 1/4"	600 psi @ 72° F	0000000	000000
1	4 7/8"	3/4"	3/4"	4	3 1/2"	600 psi @ 72° F	0000000	00000
1 1/4	5 1/4"	3/4"	3/4"	4	3 7/8"	600 psi @ 72° F	0000000	000000
1 1/2	6 1/8"	7/8"	0.88"	4	4 1/2"	600 psi @ 72° F	0000000	00000
2	6 1/2"	3/4"	3/4"	8	5"	600 psi @ 72° F	0000000	000000
3	8 1/4"	7/8"	0.88"	8	6 5/8"	600 psi @ 72° F	0000000	000000
4	10"	7/8"	0.88"	8	7 7/8"	600 psi @ 72° F	0000000	000000

Medium-Pressure Galvanized Iron and Steel Threaded Pipe Fittings

A galvanized finish gives these fittings fair corrosion resistance. They have the strength to handle medium-pressure applications.

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.

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

Straight Connectors

For Use With: Air, Natural Gas, Steam, Water
Class: 300
Specifications Met: ASTM A153, ASTM A197, ASME B16.3, ASME B1.20.1
Pipe Nipples and Pipe: Use Schedule 80 steel
Flanges: Use Class 300 steel

NPT Female
Pipe Size	Max. Pressure	Max. Steam Pressure	Material		Each
1/4	300 psi @ 72° F	300 psi @ 550° F	Galvanized Iron	0000000	000000
3/8	300 psi @ 72° F	300 psi @ 550° F	Galvanized Iron	0000000	00000
1/2	300 psi @ 72° F	300 psi @ 550° F	Galvanized Iron	0000000	00000
3/4	300 psi @ 72° F	300 psi @ 550° F	Galvanized Iron	0000000	00000
1	300 psi @ 72° F	300 psi @ 550° F	Galvanized Iron	0000000	00000
1 1/4	300 psi @ 72° F	300 psi @ 550° F	Galvanized Iron	0000000	00000
1 1/2	300 psi @ 72° F	300 psi @ 550° F	Galvanized Iron	0000000	00000
2	300 psi @ 72° F	300 psi @ 550° F	Galvanized Iron	0000000	00000

Union Straight Connectors

Exploded View

For Use With: Air, Natural Gas, Steam, Water
Class: 300
Specifications Met: FM Approved, UL Listed, ASTM A197, ASTM A153, ASME B1.20.1, ASME B16.39
Pipe Nipples and Pipe: Use Schedule 80 steel
Flanges: Use Class 300 steel

NPT Female
Pipe Size	Max. Pressure	Max. Steam Pressure	Material		Each
1/8	600 psi @ 72° F	230 psi @ 550° F	Galvanized Iron	0000000	000000
1/4	600 psi @ 72° F	230 psi @ 550° F	Galvanized Iron	0000000	00000
3/8	600 psi @ 72° F	230 psi @ 550° F	Galvanized Iron	0000000	00000
1/2	600 psi @ 72° F	230 psi @ 550° F	Galvanized Iron	0000000	00000
3/4	600 psi @ 72° F	230 psi @ 550° F	Galvanized Iron	0000000	00000
1	600 psi @ 72° F	230 psi @ 550° F	Galvanized Iron	0000000	00000
1 1/4	600 psi @ 72° F	230 psi @ 550° F	Galvanized Iron	0000000	00000
1 1/2	600 psi @ 72° F	230 psi @ 550° F	Galvanized Iron	0000000	00000
2	600 psi @ 72° F	230 psi @ 550° F	Galvanized Iron	000000	000000

Straight Reducers

For Use With: Air, Natural Gas, Steam, Water
Class: 300
Specifications Met: ASTM A153, ASTM A197, ASME B16.3, ASME B1.20.1
Pipe Nipples and Pipe: Use Schedule 80 steel
Flanges: Use Class 300 steel

Pipe Size
(A)	(B)	Max. Pressure	Max. Steam Pressure	Material		Each
NPT Female
3/8	1/4	300 psi @ 72° F	300 psi @ 550° F	Galvanized Iron	0000000	000000
1/2	1/4	300 psi @ 72° F	300 psi @ 550° F	Galvanized Iron	0000000	00000
1/2	3/8	300 psi @ 72° F	300 psi @ 550° F	Galvanized Iron	000000	00000
3/4	3/8	300 psi @ 72° F	300 psi @ 550° F	Galvanized Iron	0000000	00000
3/4	1/2	300 psi @ 72° F	300 psi @ 550° F	Galvanized Iron	0000000	00000
1	1/4	300 psi @ 72° F	300 psi @ 550° F	Galvanized Iron	0000000	00000
1	3/8	300 psi @ 72° F	300 psi @ 550° F	Galvanized Iron	0000000	00000
1	1/2	300 psi @ 72° F	300 psi @ 550° F	Galvanized Iron	0000000	00000
1	3/4	300 psi @ 72° F	300 psi @ 550° F	Galvanized Iron	0000000	00000
1 1/4	1/2	300 psi @ 72° F	300 psi @ 550° F	Galvanized Iron	00000000	00000
1 1/4	3/4	300 psi @ 72° F	300 psi @ 550° F	Galvanized Iron	0000000	00000
1 1/4	1	300 psi @ 72° F	300 psi @ 550° F	Galvanized Iron	0000000	00000
1 1/2	1/2	300 psi @ 72° F	300 psi @ 550° F	Galvanized Iron	00000000	00000
1 1/2	3/4	300 psi @ 72° F	300 psi @ 550° F	Galvanized Iron	00000000	00000
1 1/2	1	300 psi @ 72° F	300 psi @ 550° F	Galvanized Iron	00000000	00000
1 1/2	1 1/4	300 psi @ 72° F	300 psi @ 550° F	Galvanized Iron	00000000	00000
2	3/4	300 psi @ 72° F	300 psi @ 550° F	Galvanized Iron	00000000	000000
2	1	300 psi @ 72° F	300 psi @ 550° F	Galvanized Iron	00000000	000000
2	1 1/4	300 psi @ 72° F	300 psi @ 550° F	Galvanized Iron	00000000	000000
2	1 1/2	300 psi @ 72° F	300 psi @ 550° F	Galvanized Iron	00000000	00000

90° Elbow Connectors

For Use With: Air, Natural Gas, Steam, Water
Class: 300
Pipe Nipples and Pipe: Use Schedule 80 steel
Flanges: Use Class 300 steel

NPT Female
Pipe Size	Max. Pressure	Max. Steam Pressure	Material		Each
1/4	300 psi @ 72° F	300 psi @ 550° F	Galvanized Iron	000000	000000
3/8	300 psi @ 72° F	300 psi @ 550° F	Galvanized Iron	0000000	00000
1/2	300 psi @ 72° F	300 psi @ 550° F	Galvanized Iron	0000000	00000
3/4	300 psi @ 72° F	300 psi @ 550° F	Galvanized Iron	0000000	00000
1	300 psi @ 72° F	300 psi @ 550° F	Galvanized Iron	0000000	00000
1 1/4	300 psi @ 72° F	300 psi @ 550° F	Galvanized Iron	0000000	00000
1 1/2	300 psi @ 72° F	300 psi @ 550° F	Galvanized Iron	0000000	00000
2	300 psi @ 72° F	300 psi @ 550° F	Galvanized Iron	0000000	000000

90° Elbow Adapters

For Use With: Air, Natural Gas, Steam, Water
Class: 300
Specifications Met: ASTM A153, ASTM A197, ASME B16.3, ASME B1.20.1
Pipe Nipples and Pipe: Use Schedule 80 steel
Flanges: Use Class 300 steel

NPT Female × NPT Male
Pipe Size	Max. Pressure	Max. Steam Pressure	Material		Each
1/4	300 psi @ 72° F	300 psi @ 550° F	Galvanized Iron	0000000	000000
3/8	300 psi @ 72° F	300 psi @ 550° F	Galvanized Iron	0000000	00000
1/2	300 psi @ 72° F	300 psi @ 550° F	Galvanized Iron	000000	00000
3/4	300 psi @ 72° F	300 psi @ 550° F	Galvanized Iron	0000000	00000
1	300 psi @ 72° F	300 psi @ 550° F	Galvanized Iron	0000000	00000
1 1/4	300 psi @ 72° F	300 psi @ 550° F	Galvanized Iron	0000000	00000
1 1/2	300 psi @ 72° F	300 psi @ 550° F	Galvanized Iron	0000000	000000
2	300 psi @ 72° F	300 psi @ 550° F	Galvanized Iron	0000000	000000

90° Elbow Reducers

For Use With: Air, Natural Gas, Steam, Water
Class: 300
Specifications Met: ASTM A153, ASTM A197, ASME B16.3, ASME B1.20.1
Pipe Nipples and Pipe: Use Schedule 80 steel
Flanges: Use Class 300 steel

Pipe Size
(A)	(B)	Max. Pressure	Max. Steam Pressure	Material		Each
NPT Female
3/4	1/2	300 psi @ 72° F	300 psi @ 550° F	Galvanized Iron	0000000	000000
1	1/2	300 psi @ 72° F	300 psi @ 550° F	Galvanized Iron	0000000	00000
2	1 1/2	300 psi @ 72° F	300 psi @ 550° F	Galvanized Iron	0000000	000000

45° Elbow Connectors

Class: 300
Specifications Met: ASTM A153, ASTM A197, ASME B16.3, ASME B1.20.1
Pipe Nipples and Pipe: Use Schedule 80 steel
Flanges: Use Class 300 steel

NPT Female
Pipe Size	Max. Pressure	Max. Steam Pressure	Material		Each
1/4	300 psi @ 72° F	300 psi @ 550° F	Galvanized Iron	0000000	000000
3/8	300 psi @ 72° F	300 psi @ 550° F	Galvanized Iron	0000000	00000
1/2	300 psi @ 72° F	300 psi @ 550° F	Galvanized Iron	0000000	00000
3/4	300 psi @ 72° F	300 psi @ 550° F	Galvanized Iron	0000000	00000
1	300 psi @ 72° F	300 psi @ 550° F	Galvanized Iron	000000	00000
1 1/4	300 psi @ 72° F	300 psi @ 550° F	Galvanized Iron	0000000	00000
1 1/2	300 psi @ 72° F	300 psi @ 550° F	Galvanized Iron	0000000	000000
2	300 psi @ 72° F	300 psi @ 550° F	Galvanized Iron	0000000	000000

Tee Connectors

For Use With: Air, Natural Gas, Steam, Water
Class: 300
Specifications Met: ASTM A153, ASTM A197, ASME B16.3, ASME B1.20.1
Pipe Nipples and Pipe: Use Schedule 80 steel
Flanges: Use Class 300 steel

NPT Female
Pipe Size	Max. Pressure	Max. Steam Pressure	Material		Each
1/4	300 psi @ 72° F	300 psi @ 550° F	Galvanized Iron	0000000	000000
3/8	300 psi @ 72° F	300 psi @ 550° F	Galvanized Iron	0000000	00000
1/2	300 psi @ 72° F	300 psi @ 550° F	Galvanized Iron	0000000	00000
3/4	300 psi @ 72° F	300 psi @ 550° F	Galvanized Iron	0000000	00000
1	300 psi @ 72° F	300 psi @ 550° F	Galvanized Iron	0000000	00000
1 1/4	300 psi @ 72° F	300 psi @ 550° F	Galvanized Iron	0000000	00000
1 1/2	300 psi @ 72° F	300 psi @ 550° F	Galvanized Iron	000000	00000
2	300 psi @ 72° F	300 psi @ 550° F	Galvanized Iron	0000000	000000

Inline Tee Reducers

For Use With: Air, Natural Gas, Steam, Water
Class: 300
Specifications Met: ASTM A153, ASTM A197, ASME B16.3, ASME B1.20.1
Pipe Nipples and Pipe: Use Schedule 80 steel
Flanges: Use Class 300 steel

Pipe Size
(A)	(B)	Max. Pressure	Max. Steam Pressure	Material		Each
NPT Female
3/4	1/2	300 psi @ 72° F	300 psi @ 550° F	Galvanized Iron	0000000	000000
1	1/2	300 psi @ 72° F	300 psi @ 550° F	Galvanized Iron	0000000	00000
1	3/4	300 psi @ 72° F	300 psi @ 550° F	Galvanized Iron	0000000	00000
1 1/4	1/2	300 psi @ 72° F	300 psi @ 550° F	Galvanized Iron	0000000	000000
1 1/4	3/4	300 psi @ 72° F	300 psi @ 550° F	Galvanized Iron	0000000	000000
1 1/4	1	300 psi @ 72° F	300 psi @ 550° F	Galvanized Iron	0000000	000000
1 1/2	1/2	300 psi @ 72° F	300 psi @ 550° F	Galvanized Iron	000000	000000
1 1/2	3/4	300 psi @ 72° F	300 psi @ 550° F	Galvanized Iron	0000000	000000
1 1/2	1	300 psi @ 72° F	300 psi @ 550° F	Galvanized Iron	0000000	000000
1 1/2	1 1/4	300 psi @ 72° F	300 psi @ 550° F	Galvanized Iron	0000000	000000
2	1/2	300 psi @ 72° F	300 psi @ 550° F	Galvanized Iron	0000000	000000
2	3/4	300 psi @ 72° F	300 psi @ 550° F	Galvanized Iron	0000000	000000
2	1	300 psi @ 72° F	300 psi @ 550° F	Galvanized Iron	0000000	000000
2	1 1/4	300 psi @ 72° F	300 psi @ 550° F	Galvanized Iron	0000000	000000
2	1 1/2	300 psi @ 72° F	300 psi @ 550° F	Galvanized Iron	0000000	000000

Caps

For Use With: Air, Natural Gas, Steam, Water
Class: 300
Specifications Met: ASTM A153, ASTM A197, ASME B16.3, ASME B1.20.1
Pipe Nipples and Pipe: Use Schedule 80 steel
Flanges: Use Class 300 steel

NPT Female
Pipe Size	Max. Pressure	Max. Steam Pressure	Material		Each
1/4	300 psi @ 72° F	300 psi @ 550° F	Galvanized Iron	0000000	000000
3/8	300 psi @ 72° F	300 psi @ 550° F	Galvanized Iron	000000	00000
1/2	300 psi @ 72° F	300 psi @ 550° F	Galvanized Iron	0000000	00000
3/4	300 psi @ 72° F	300 psi @ 550° F	Galvanized Iron	0000000	00000
1	300 psi @ 72° F	300 psi @ 550° F	Galvanized Iron	0000000	00000
1 1/4	300 psi @ 72° F	300 psi @ 550° F	Galvanized Iron	0000000	00000
1 1/2	300 psi @ 72° F	300 psi @ 550° F	Galvanized Iron	0000000	00000
2	300 psi @ 72° F	300 psi @ 550° F	Galvanized Iron	0000000	00000