Black Iron (Class 125) Low-Pressure Threaded Pipe Fittings

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	Pipe Size Pipe Size

1/4

3/8

	Type Type


Connector	Bushing

Reducing Adapter	Reducer

Cap	Plug

	Shape Shape


Straight	90° Elbow

Tee	Cap/Plug

45° Elbow

	For Use With For Use With

	Gender Gender

Female

Male

	Maximum Pressure Maximum Pressure

125 psi @ 72° F

150 psi @ 72° F

175 psi @ 72° F

	Drive Style Drive Style


External Square	Square

	Specifications Met Specifications Met

ANSI/ASME

ASTM

	Body Shape Body Shape


Hex	Square

	Length Length

	Hex Width Hex Width

	Plug Construction Plug Construction

Hollow

Solid

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155 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.

FM-Approved Low-Pressure
Cast Iron Threaded Pipe Fittings

Suitable for use in fire-protection applications, these pipe fittings are brittle and can be quickly opened with the strike of a sledge hammer. They are also known as Class 125 fittings. Use in noncorrosive environments.

Offset straight reducers are also known as eccentric reducers; they connect one pipe to another smaller-diameter pipe and have the centers offset so your line can drain.

Inline tees are also known as branch tees.

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

Bushing Straight Reducing Adapters

For Use With: Air, Steam, Oil, Water, Natural Gas
Class: 125
Specifications Met: ASTM A126, FM Approved, UL Listed, ANSI/ASME B16.4, ANSI/ASME B1.20.1, ANSI/ASME B16.14
Pipe Nipples and Pipe: Use Schedule 40 steel

Pipe Size
(A)	(B)	Max. Pressure	Max. Steam Pressure	Material		Each
NPT Male × NPT Female
1 1/4	3/8	125 psi @ 72° F	125 psi @ 350° F	Black-Coated Iron	000000000	00000
1 1/4	1/2	125 psi @ 72° F	125 psi @ 350° F	Black-Coated Iron	000000000	0000
1 1/4	3/4	125 psi @ 72° F	125 psi @ 350° F	Black-Coated Iron	000000000	0000
1 1/2	3/8	125 psi @ 72° F	125 psi @ 350° F	Black-Coated Iron	000000000	00000
1 1/2	1/2	125 psi @ 72° F	125 psi @ 350° F	Black-Coated Iron	000000000	0000
1 1/2	3/4	125 psi @ 72° F	125 psi @ 350° F	Black-Coated Iron	000000000	0000
1 1/2	1	125 psi @ 72° F	125 psi @ 350° F	Black-Coated Iron	000000000	0000
2	1/2	125 psi @ 72° F	125 psi @ 350° F	Black-Coated Iron	000000000	00000
2	3/4	125 psi @ 72° F	125 psi @ 350° F	Black-Coated Iron	000000000	0000
2	1	125 psi @ 72° F	125 psi @ 350° F	Black-Coated Iron	000000000	0000
2	1 1/4	125 psi @ 72° F	125 psi @ 350° F	Black-Coated Iron	000000000	0000
2 1/2	1 1/2	125 psi @ 72° F	125 psi @ 350° F	Black-Coated Iron	000000000	00000
3	2	125 psi @ 72° F	125 psi @ 350° F	Black-Coated Iron	000000000	00000
3	2 1/2	125 psi @ 72° F	125 psi @ 350° F	Black-Coated Iron	000000000	00000
4	3	125 psi @ 72° F	125 psi @ 350° F	Black-Coated Iron	000000000	00000

Straight Reducers

For Use With: Air, Steam, Oil, Water, Natural Gas
Class: 125
Specifications Met: FM Approved, UL Listed, ASTM A126, ANSI/ASME B1.20.1, ANSI/ASME B16.4
Pipe Nipples and Pipe: Use Schedule 40 steel

Pipe Size
(A)	(B)	Max. Pressure	Max. Steam Pressure	Material		Each
NPT Female
3/4	1/2	125 psi @ 72° F	125 psi @ 350° F	Black-Coated Iron	00000000	000000
1	1/2	125 psi @ 72° F	125 psi @ 350° F	Black-Coated Iron	00000000	0000
1	3/4	125 psi @ 72° F	125 psi @ 350° F	Black-Coated Iron	00000000	0000
1 1/4	3/4	125 psi @ 72° F	125 psi @ 350° F	Black-Coated Iron	00000000	00000
1 1/4	1	125 psi @ 72° F	125 psi @ 350° F	Black-Coated Iron	00000000	00000
1 1/2	1	125 psi @ 72° F	125 psi @ 350° F	Black-Coated Iron	00000000	00000
1 1/2	1 1/4	125 psi @ 72° F	125 psi @ 350° F	Black-Coated Iron	00000000	00000
2	1/2	125 psi @ 72° F	125 psi @ 350° F	Black-Coated Iron	00000000	00000
2	3/4	125 psi @ 72° F	125 psi @ 350° F	Black-Coated Iron	00000000	00000
2	1	125 psi @ 72° F	125 psi @ 350° F	Black-Coated Iron	00000000	00000
2	1 1/4	125 psi @ 72° F	125 psi @ 350° F	Black-Coated Iron	00000000	00000
2	1 1/2	125 psi @ 72° F	125 psi @ 350° F	Black-Coated Iron	00000000	00000
2 1/2	2	125 psi @ 72° F	125 psi @ 350° F	Black-Coated Iron	00000000	00000
3	1 1/2	125 psi @ 72° F	125 psi @ 350° F	Black-Coated Iron	00000000	000000
3	2	125 psi @ 72° F	125 psi @ 350° F	Black-Coated Iron	00000000	00000

Offset Straight Reducers

For Use With: Air, Steam, Oil, Water, Natural Gas
Class: 125
Specifications Met: UL Listed, FM Approved, ANSI/ASME B1.20.1, ASTM A126
Pipe Nipples and Pipe: Use Schedule 40 steel

Pipe Size
(A)	(B)	Max. Pressure	Max. Steam Pressure	Material		Each
NPT Female
3/4	1/2	125 psi @ 72° F	125 psi @ 350° F	Black-Coated Iron	00000000	000000
1	1/2	125 psi @ 72° F	125 psi @ 350° F	Black-Coated Iron	00000000	00000
1	3/4	125 psi @ 72° F	125 psi @ 350° F	Black-Coated Iron	00000000	00000
1 1/4	1/2	125 psi @ 72° F	125 psi @ 350° F	Black-Coated Iron	00000000	00000
1 1/4	3/4	125 psi @ 72° F	125 psi @ 350° F	Black-Coated Iron	00000000	00000
1 1/4	1	125 psi @ 72° F	125 psi @ 350° F	Black-Coated Iron	00000000	00000
1 1/2	1/2	125 psi @ 72° F	125 psi @ 350° F	Black-Coated Iron	00000000	00000
1 1/2	3/4	125 psi @ 72° F	125 psi @ 350° F	Black-Coated Iron	00000000	00000
1 1/2	1	125 psi @ 72° F	125 psi @ 350° F	Black-Coated Iron	00000000	00000
1 1/2	1 1/4	125 psi @ 72° F	125 psi @ 350° F	Black-Coated Iron	00000000	00000
2	1	125 psi @ 72° F	125 psi @ 350° F	Black-Coated Iron	00000000	00000
2	1 1/4	125 psi @ 72° F	125 psi @ 350° F	Black-Coated Iron	00000000	00000
2	1 1/2	125 psi @ 72° F	125 psi @ 350° F	Black-Coated Iron	00000000	00000

90° Elbow Connectors

For Use With: Air, Steam, Oil, Water, Natural Gas
Class: 125
Specifications Met: FM Approved, UL Listed, ASTM A126, ANSI/ASME B1.20.1, ANSI/ASME B16.4
Pipe Nipples and Pipe: Use Schedule 40 steel

NPT Female
Pipe Size	Max. Pressure	Max. Steam Pressure	Material		Each
1/2	125 psi @ 72° F	125 psi @ 350° F	Black-Coated Iron	00000000	00000
3/4	125 psi @ 72° F	125 psi @ 350° F	Black-Coated Iron	00000000	0000
1	125 psi @ 72° F	125 psi @ 350° F	Black-Coated Iron	00000000	0000
1 1/4	125 psi @ 72° F	125 psi @ 350° F	Black-Coated Iron	00000000	0000
1 1/2	125 psi @ 72° F	125 psi @ 350° F	Black-Coated Iron	00000000	00000
2	125 psi @ 72° F	125 psi @ 350° F	Black-Coated Iron	00000000	00000
2 1/2	125 psi @ 72° F	125 psi @ 350° F	Black-Coated Iron	00000000	00000
3	125 psi @ 72° F	125 psi @ 350° F	Black-Coated Iron	00000000	00000
4	125 psi @ 72° F	125 psi @ 350° F	Black-Coated Iron	00000000	000000

45° Elbow Connectors

For Use With: Air, Steam, Oil, Water, Natural Gas
Class: 125
Specifications Met: FM Approved, UL Listed, ASTM A126, ANSI/ASME B1.20.1, ANSI/ASME B16.4
Pipe Nipples and Pipe: Use Schedule 40 steel

NPT Female
Pipe Size	Max. Pressure	Max. Steam Pressure	Material		Each
1/2	125 psi @ 72° F	125 psi @ 350° F	Black-Coated Iron	00000000	00000
3/4	125 psi @ 72° F	125 psi @ 350° F	Black-Coated Iron	00000000	0000
1	125 psi @ 72° F	125 psi @ 350° F	Black-Coated Iron	00000000	0000
1 1/4	125 psi @ 72° F	125 psi @ 350° F	Black-Coated Iron	00000000	00000
1 1/2	125 psi @ 72° F	125 psi @ 350° F	Black-Coated Iron	00000000	00000
2	125 psi @ 72° F	125 psi @ 350° F	Black-Coated Iron	00000000	00000
2 1/2	125 psi @ 72° F	125 psi @ 350° F	Black-Coated Iron	00000000	00000
3	125 psi @ 72° F	125 psi @ 350° F	Black-Coated Iron	00000000	00000
4	125 psi @ 72° F	125 psi @ 350° F	Black-Coated Iron	00000000	000000

Tee Connectors

For Use With: Air, Steam, Oil, Water, Natural Gas
Class: 125
Specifications Met: FM Approved, UL Listed, ASTM A126, ANSI/ASME B1.20.1, ANSI/ASME B16.4
Pipe Nipples and Pipe: Use Schedule 40 steel

NPT Female
Pipe Size	Max. Pressure	Max. Steam Pressure	Material		Each
1/2	125 psi @ 72° F	125 psi @ 350° F	Black-Coated Iron	00000000	00000
3/4	125 psi @ 72° F	125 psi @ 350° F	Black-Coated Iron	00000000	0000
1	125 psi @ 72° F	125 psi @ 350° F	Black-Coated Iron	00000000	0000
1 1/4	125 psi @ 72° F	125 psi @ 350° F	Black-Coated Iron	00000000	00000
1 1/2	125 psi @ 72° F	125 psi @ 350° F	Black-Coated Iron	00000000	00000
2	125 psi @ 72° F	125 psi @ 350° F	Black-Coated Iron	00000000	00000
2 1/2	125 psi @ 72° F	125 psi @ 350° F	Black-Coated Iron	00000000	00000
3	125 psi @ 72° F	125 psi @ 350° F	Black-Coated Iron	00000000	00000
4	125 psi @ 72° F	125 psi @ 350° F	Black-Coated Iron	00000000	000000

Inline Tee Reducers

For Use With: Air, Steam, Oil, Water, Natural Gas
Class: 125
Specifications Met: FM Approved, UL Listed, ASTM A126, ANSI/ASME B1.20.1, ANSI/ASME B16.4
Pipe Nipples and Pipe: Use Schedule 40 steel

Pipe Size
(A)	(B)	Max. Pressure	Max. Steam Pressure	Material		Each
NPT Female
3/4	1/2	125 psi @ 72° F	125 psi @ 350° F	Black-Coated Iron	00000000	000000
1	1/2	125 psi @ 72° F	125 psi @ 350° F	Black-Coated Iron	00000000	0000
1	3/4	125 psi @ 72° F	125 psi @ 350° F	Black-Coated Iron	00000000	00000
1 1/4	1/2	125 psi @ 72° F	125 psi @ 350° F	Black-Coated Iron	00000000	00000
1 1/4	3/4	125 psi @ 72° F	125 psi @ 350° F	Black-Coated Iron	00000000	00000
1 1/4	1	125 psi @ 72° F	125 psi @ 350° F	Black-Coated Iron	00000000	00000
1 1/2	1/2	125 psi @ 72° F	125 psi @ 350° F	Black-Coated Iron	00000000	00000
1 1/2	3/4	125 psi @ 72° F	125 psi @ 350° F	Black-Coated Iron	00000000	00000
1 1/2	1	125 psi @ 72° F	125 psi @ 350° F	Black-Coated Iron	00000000	00000
1 1/2	1 1/4	125 psi @ 72° F	125 psi @ 350° F	Black-Coated Iron	00000000	00000
2	1/2	125 psi @ 72° F	125 psi @ 350° F	Black-Coated Iron	00000000	00000
2	3/4	125 psi @ 72° F	125 psi @ 350° F	Black-Coated Iron	00000000	00000
2	1	125 psi @ 72° F	125 psi @ 350° F	Black-Coated Iron	00000000	00000
2	1 1/4	125 psi @ 72° F	125 psi @ 350° F	Black-Coated Iron	00000000	00000
2	1 1/2	125 psi @ 72° F	125 psi @ 350° F	Black-Coated Iron	00000000	00000

Low-Pressure Cast Iron Threaded Pipe Fittings

Made of cast iron, these fittings are brittle and can be quickly opened with the strike of a sledge hammer in case of an emergency. They are also known as Class 125 fittings. Use in noncorrosive environments.

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

Bushing Straight Reducing Adapters

For Use With: Air, Steam, Oil, Water, Natural Gas
Class: 125
Specifications Met: ANSI/ASME B16.4, ASTM A126, UL Listed, ANSI/ASME B16.14, ANSI/ASME B1.20.1
Pipe Nipples and Pipe: Use Schedule 40 steel

Pipe Size
(A)	(B)	Max. Pressure	Max. Steam Pressure	Material		Each
NPT Male × NPT Female
1	1/4	125 psi @ 72° F	125 psi @ 350° F	Black-Coated Iron	000000000	00000
1	3/8	125 psi @ 72° F	125 psi @ 350° F	Black-Coated Iron	000000000	0000
1	1/2	125 psi @ 72° F	125 psi @ 350° F	Black-Coated Iron	000000000	0000
1	3/4	125 psi @ 72° F	125 psi @ 350° F	Black-Coated Iron	000000000	0000

Caps

For Use With: Air, Steam, Oil, Water, Natural Gas
Class: 125
Specifications Met: ASTM A126, UL Listed, ANSI/ASME B16.4, ANSI/ASME B1.20.1
Pipe Nipples and Pipe: Use Schedule 40 steel

NPT Female
Pipe Size	Max. Pressure	Max. Steam Pressure	Material		Each
3/4	125 psi @ 72° F	125 psi @ 350° F	Black-Coated Iron	000000000	00000
1	125 psi @ 72° F	125 psi @ 350° F	Black-Coated Iron	000000000	0000
1 1/4	125 psi @ 72° F	125 psi @ 350° F	Black-Coated Iron	000000000	0000
1 1/2	125 psi @ 72° F	125 psi @ 350° F	Black-Coated Iron	000000000	0000
2	125 psi @ 72° F	125 psi @ 350° F	Black-Coated Iron	000000000	0000
2 1/2	125 psi @ 72° F	125 psi @ 350° F	Black-Coated Iron	000000000	00000

Plugs with Square Drive

For Use With: Air, Steam, Oil, Water, Natural Gas
Class: 125
Specifications Met: ANSI/ASME B16.4, ASTM A126, UL Listed, ANSI/ASME B16.14, ANSI/ASME B1.20.1
Pipe Nipples and Pipe: Use Schedule 40 steel

NPT Male
Pipe Size	Plug Construction	Max. Pressure	Max. Steam Pressure	Material		Each
1	Solid	125 psi @ 72° F	125 psi @ 350° F	Black-Coated Iron	000000000	00000
1 1/4	Solid	125 psi @ 72° F	125 psi @ 350° F	Black-Coated Iron	000000000	0000
1 1/2	Solid	125 psi @ 72° F	125 psi @ 350° F	Black-Coated Iron	000000000	0000
2	Solid	125 psi @ 72° F	125 psi @ 350° F	Black-Coated Iron	000000000	0000
2 1/2	Solid	125 psi @ 72° F	125 psi @ 350° F	Black-Coated Iron	000000000	00000
3	Solid	125 psi @ 72° F	125 psi @ 350° F	Black-Coated Iron	000000000	00000
4	Solid	125 psi @ 72° F	125 psi @ 350° F	Black-Coated Iron	000000000	00000

Plugs with External Square Drive

For Use With: Air, Steam, Oil, Water, Natural Gas
Class: 125
Specifications Met: ANSI/ASME B16.4, ASTM A126, UL Listed, ANSI/ASME B16.14, ANSI/ASME B1.20.1
Pipe Nipples and Pipe: Use Schedule 40 steel

NPT Male
Pipe Size	Plug Construction	Max. Pressure	Max. Steam Pressure	Material		Each
1	Hollow	125 psi @ 72° F	125 psi @ 350° F	Black-Coated Iron	000000000	00000
1 1/4	Hollow	125 psi @ 72° F	125 psi @ 350° F	Black-Coated Iron	000000000	0000
1 1/2	Hollow	125 psi @ 72° F	125 psi @ 350° F	Black-Coated Iron	000000000	0000
2	Hollow	125 psi @ 72° F	125 psi @ 350° F	Black-Coated Iron	000000000	0000
2 1/2	Hollow	125 psi @ 72° F	125 psi @ 350° F	Black-Coated Iron	000000000	00000
3	Hollow	125 psi @ 72° F	125 psi @ 350° F	Black-Coated Iron	000000000	00000
4	Hollow	125 psi @ 72° F	125 psi @ 350° F	Black-Coated Iron	000000000	00000

Low-Pressure Iron and Steel Threaded Pipe Fittings

Use these fittings for low-pressure applications in noncorrosive environments.

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

Bushing Straight Reducing Adapters

For Use With: Air, Steam, Oil, Water, Natural Gas
Class: See table
Specifications Met: ANSI/ASME B16.14
Pipe Nipples and Pipe: Use Schedule 40 steel

Pipe Size
(A)	(B)	Class	Max. Pressure	Max. Steam Pressure	Material		Each
NPT Male × NPT Female
3	2	125	150 psi @ 72° F	125 psi @ 350° F	Black-Coated Iron	000000000	000000
4	3	125	150 psi @ 72° F	125 psi @ 350° F	Black-Coated Iron	000000000	00000

Bushing Straight Reducing Adapters with Hex Body

For Use With: Air, Steam, Oil, Water, Natural Gas
Class: See table
Pipe Nipples and Pipe: Use Schedule 40 steel

Pipe Size
(A)	(B)	Class	Max. Pressure	Max. Steam Pressure	Material	Specifications Met		Each
NPT Male × NPT Female
1 1/2	1/4	125	175 psi @ 72° F	125 psi @ 350° F	Black-Coated Iron	ANSI/ASME B16.14	000000000	000000
1 1/2	3/8	125	175 psi @ 72° F	125 psi @ 350° F	Black-Coated Iron	ANSI/ASME B16.14	000000000	00000
1 1/2	1/2	125	175 psi @ 72° F	125 psi @ 350° F	Black-Coated Iron	ANSI/ASME B16.14	000000000	00000
2	1/4	125	175 psi @ 72° F	125 psi @ 350° F	Black-Coated Iron	ANSI/ASME B16.14	000000000	00000
2	3/8	125	175 psi @ 72° F	125 psi @ 350° F	Black-Coated Iron	ANSI/ASME B16.14	000000000	00000
2	1/2	125	175 psi @ 72° F	125 psi @ 350° F	Black-Coated Iron	ANSI/ASME B16.14	000000000	00000
2	3/4	125	175 psi @ 72° F	125 psi @ 350° F	Black-Coated Iron	ANSI/ASME B16.14	000000000	00000
2 1/2	1/2	125	175 psi @ 72° F	125 psi @ 350° F	Black-Coated Iron	ANSI/ASME B16.14	000000000	00000
2 1/2	3/4	125	175 psi @ 72° F	125 psi @ 350° F	Black-Coated Iron	ANSI/ASME B16.14	000000000	00000
2 1/2	1	125	175 psi @ 72° F	125 psi @ 350° F	Black-Coated Iron	ANSI/ASME B16.14	000000000	00000
2 1/2	1 1/4	125	175 psi @ 72° F	125 psi @ 350° F	Black-Coated Iron	ANSI/ASME B16.14	000000000	00000
2 1/2	1 1/2	125	175 psi @ 72° F	125 psi @ 350° F	Black-Coated Iron	ANSI/ASME B16.14	000000000	00000
3	1/2	125	175 psi @ 72° F	125 psi @ 350° F	Black-Coated Iron	ANSI/ASME B16.14	000000000	00000
3	3/4	125	175 psi @ 72° F	125 psi @ 350° F	Black-Coated Iron	ANSI/ASME B16.14	000000000	00000
3	1	125	175 psi @ 72° F	125 psi @ 350° F	Black-Coated Iron	ANSI/ASME B16.14	000000000	00000
3	1 1/4	125	175 psi @ 72° F	125 psi @ 350° F	Black-Coated Iron	ANSI/ASME B16.14	000000000	00000
3	1 1/2	125	175 psi @ 72° F	125 psi @ 350° F	Black-Coated Iron	ANSI/ASME B16.14	000000000	00000
3	2	125	175 psi @ 72° F	125 psi @ 350° F	Black-Coated Iron	ANSI/ASME B16.14	000000000	00000
3	2 1/2	125	175 psi @ 72° F	125 psi @ 350° F	Black-Coated Iron	ANSI/ASME B16.14	000000000	00000
3 1/2	1	125	175 psi @ 72° F	125 psi @ 350° F	Black-Coated Iron	ANSI/ASME B16.14	000000000	00000
3 1/2	1 1/4	125	175 psi @ 72° F	125 psi @ 350° F	Black-Coated Iron	ANSI/ASME B16.14	000000000	00000
3 1/2	1 1/2	125	175 psi @ 72° F	125 psi @ 350° F	Black-Coated Iron	ANSI/ASME B16.14	000000000	00000
3 1/2	2	125	175 psi @ 72° F	125 psi @ 350° F	Black-Coated Iron	ANSI/ASME B16.14	000000000	00000
3 1/2	2 1/2	125	175 psi @ 72° F	125 psi @ 350° F	Black-Coated Iron	ANSI/ASME B16.14	000000000	00000
3 1/2	3	125	175 psi @ 72° F	125 psi @ 350° F	Black-Coated Iron	ANSI/ASME B16.14	000000000	00000
4	1	125	175 psi @ 72° F	125 psi @ 350° F	Black-Coated Iron	ANSI/ASME B16.14	000000000	00000
4	1 1/4	125	175 psi @ 72° F	125 psi @ 350° F	Black-Coated Iron	ANSI/ASME B16.14	000000000	00000
4	1 1/2	125	175 psi @ 72° F	125 psi @ 350° F	Black-Coated Iron	ANSI/ASME B16.14	000000000	00000
4	2	125	175 psi @ 72° F	125 psi @ 350° F	Black-Coated Iron	ANSI/ASME B16.14	000000000	00000
4	2 1/2	125	175 psi @ 72° F	125 psi @ 350° F	Black-Coated Iron	ANSI/ASME B16.14	000000000	00000
4	3	125	175 psi @ 72° F	125 psi @ 350° F	Black-Coated Iron	ANSI/ASME B16.14	000000000	00000
6	2	125	175 psi @ 72° F	125 psi @ 350° F	Black-Coated Iron	ANSI/ASME B16.14	000000000	00000
6	2 1/2	125	175 psi @ 72° F	125 psi @ 350° F	Black-Coated Iron	ANSI/ASME B16.14	000000000	00000
6	3	125	175 psi @ 72° F	125 psi @ 350° F	Black-Coated Iron	ANSI/ASME B16.14	000000000	00000
6	4	125	175 psi @ 72° F	125 psi @ 350° F	Black-Coated Iron	ANSI/ASME B16.14	000000000	00000
6	5	125	175 psi @ 72° F	125 psi @ 350° F	Black-Coated Iron	ANSI/ASME B16.14	000000000	00000

Plugs with Square Drive

For Use With: Air, Steam, Oil, Water, Natural Gas
Class:
Steel: 150
Iron: 125
Pipe Nipples and Pipe: Use Schedule 40 steel

NPT Male
Pipe Size	Plug Construction	Max. Pressure	Max. Steam Pressure	Material		Each
2 1/2	Hollow	175 psi @ 72° F	125 psi @ 350° F	Black-Coated Iron	000000000	000000
3	Hollow	175 psi @ 72° F	125 psi @ 350° F	Black-Coated Iron	000000000	00000
3 1/2	Hollow	175 psi @ 72° F	125 psi @ 350° F	Black-Coated Iron	000000000	00000
4	Hollow	175 psi @ 72° F	125 psi @ 350° F	Black-Coated Iron	000000000	000000

Plugs with External Square Drive

For Use With:
NPT and BSPT: Air, Natural Gas, Oil, Steam, Water
NPTF: Air, Natural Gas, Steam, Water
Class:
NPT Steel: 125
NPT Iron and BSPT: 150
Specifications Met:
BSPT: DIN EN 10226
Pipe Nipples and Pipe:
NPT and BPST: Use Schedule 40 steel

NPT Male
Pipe Size	Plug Construction	Max. Pressure	Max. Steam Pressure	Material		Each
2 1/2	Hollow	175 psi @ 72° F	125 psi @ 350° F	Black-Coated Iron	000000000	000000
3	Hollow	175 psi @ 72° F	125 psi @ 350° F	Black-Coated Iron	000000000	00000
3 1/2	Hollow	175 psi @ 72° F	125 psi @ 350° F	Black-Coated Iron	000000000	00000
4	Hollow	175 psi @ 72° F	125 psi @ 350° F	Black-Coated Iron	000000000	00000

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FM-Approved Low-PressureCast Iron Threaded Pipe Fittings

Low-Pressure Cast Iron Threaded Pipe Fittings

Low-Pressure Iron and Steel Threaded Pipe Fittings

FM-Approved Low-Pressure
Cast Iron Threaded Pipe Fittings