Silbraze Pipe Fittings | McMaster-Carr

	Pipe Size Pipe Size

1/2

3/4

1 1/2

	Connection Style Connection Style

Socket Connect

Flanged

	Type Type


Connector	Adapter

Flange	Union

Cap

	Shape Shape


Straight	90° Elbow

45° Elbow	Tee

Cap/Plug

	For Use With For Use With

	Socket Depth Socket Depth

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

RoHS Compliant

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

DFARS Specialty Metals
COTS-Exempt

	Length Length

	Elbow Style Elbow Style


Long	Short

	Bolt Hole Diameter Bolt Hole Diameter

5/8"

3/4"

	For Bolt Diameter For Bolt Diameter

1/2"

5/8"

	Hex Width Hex Width

	Bolt Circle Diameter Bolt Circle Diameter

	Flange OD Flange OD

45 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.

Snap a brazing ring (sold separately) into these fittings and braze them to unthreaded pipe for a strong, leak-resistant connection. Fittings are also known as Silbraze fittings. They are bronze, which is compatible with brass and has good corrosion resistance.

Union connectors separate into three pieces so you can access your line.

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

Straight Connectors

For Use With: Air, Oil, Steam, Water, Natural Gas
Specifications Met: MIL-F-1183
Pipe Nipples and Pipe: Use Schedule 40 brass

Fittings					Brazing Rings
Pipe Size	Max. Pressure	Max. Steam Pressure		Each		Each
1/2	200 psi @ 72° F	200 psi @ 425° F	0000000	000000	0000000	00000
3/4	200 psi @ 72° F	200 psi @ 425° F	0000000	00000	0000000	0000
1	200 psi @ 72° F	200 psi @ 425° F	0000000	00000	0000000	0000
1 1/2	200 psi @ 72° F	200 psi @ 425° F	0000000	00000	0000000	0000
2	200 psi @ 72° F	200 psi @ 425° F	0000000	000000	0000000	0000

Union Straight Connectors

Exploded View

For Use With: Air, Oil, Steam, Water, Natural Gas
Specifications Met: MIL-F-1183
Pipe Nipples and Pipe: Use Schedule 40 brass

Fittings					Brazing Rings
Pipe Size	Max. Pressure	Max. Steam Pressure		Each		Each
1/2	200 psi @ 72° F	200 psi @ 425° F	0000000	000000	0000000	00000
3/4	200 psi @ 72° F	200 psi @ 425° F	0000000	000000	0000000	0000
1	200 psi @ 72° F	200 psi @ 425° F	0000000	000000	0000000	0000
1 1/2	200 psi @ 72° F	200 psi @ 425° F	0000000	000000	0000000	0000
2	200 psi @ 72° F	200 psi @ 425° F	0000000	000000	0000000	0000

Short 90° Elbow Connectors

For Use With: Air, Oil, Steam, Water, Natural Gas
Specifications Met: MIL-F-1183
Pipe Nipples and Pipe: Use Schedule 40 brass

Fittings						Brazing Rings
Pipe Size	Lg.	Max. Pressure	Max. Steam Pressure		Each		Each
1/2	1"	200 psi @ 72° F	200 psi @ 425° F	000000	000000	0000000	00000
3/4	1 3/16"	200 psi @ 72° F	200 psi @ 425° F	000000	00000	0000000	0000
1	1 7/16"	200 psi @ 72° F	200 psi @ 425° F	000000	00000	0000000	0000
1 1/2	1 13/16"	200 psi @ 72° F	200 psi @ 425° F	000000	00000	0000000	0000
2	2 1/8"	200 psi @ 72° F	200 psi @ 425° F	000000	000000	0000000	0000

Long 90° Elbow Connectors

For Use With: Air, Oil, Steam, Water, Natural Gas
Specifications Met: MIL-F-1183
Pipe Nipples and Pipe: Use Schedule 40 brass

Fittings						Brazing Rings
Pipe Size	Lg.	Max. Pressure	Max. Steam Pressure		Each		Each
1/2	1 3/4"	200 psi @ 72° F	200 psi @ 425° F	000000	000000	0000000	00000
3/4	2"	200 psi @ 72° F	200 psi @ 425° F	000000	00000	0000000	0000
1	2 5/16"	200 psi @ 72° F	200 psi @ 425° F	000000	000000	0000000	0000
1 1/2	3 1/8"	200 psi @ 72° F	200 psi @ 425° F	000000	000000	0000000	0000
2	3 1/4"	200 psi @ 72° F	200 psi @ 425° F	0000000	000000	0000000	0000

45° Elbow Connectors

For Use With: Air, Oil, Steam, Water, Natural Gas
Specifications Met: MIL-F-1183
Pipe Nipples and Pipe: Use Schedule 40 brass

Pipe Size	Max. Pressure	Max. Steam Pressure		Each
1/2	200 psi @ 72° F	200 psi @ 425° F	0000000	000000
3/4	200 psi @ 72° F	200 psi @ 425° F	0000000	00000
1	200 psi @ 72° F	200 psi @ 425° F	0000000	00000
1 1/2	200 psi @ 72° F	200 psi @ 425° F	0000000	00000
2	200 psi @ 72° F	200 psi @ 425° F	0000000	000000

Tee Connectors

For Use With: Air, Oil, Steam, Water, Natural Gas
Specifications Met: MIL-F-1183
Pipe Nipples and Pipe: Use Schedule 40 brass

Fittings					Brazing Rings
Pipe Size	Max. Pressure	Max. Steam Pressure		Each		Each
1/2	200 psi @ 72° F	200 psi @ 425° F	0000000	000000	0000000	00000
3/4	200 psi @ 72° F	200 psi @ 425° F	0000000	00000	0000000	0000
1	200 psi @ 72° F	200 psi @ 425° F	0000000	00000	0000000	0000
1 1/2	200 psi @ 72° F	200 psi @ 425° F	0000000	000000	0000000	0000
2	200 psi @ 72° F	200 psi @ 425° F	0000000	000000	0000000	0000

Caps

For Use With: Air, Oil, Steam, Water, Natural Gas
Specifications Met: MIL-F-1183
Pipe Nipples and Pipe: Use Schedule 40 brass

Fittings					Brazing Rings
Pipe Size	Max. Pressure	Max. Steam Pressure		Each		Each
1/2	200 psi @ 72° F	200 psi @ 425° F	0000000	000000	0000000	00000
3/4	200 psi @ 72° F	200 psi @ 425° F	0000000	000000	0000000	0000
1	200 psi @ 72° F	200 psi @ 425° F	0000000	000000	0000000	0000
1 1/2	200 psi @ 72° F	200 psi @ 425° F	0000000	000000	0000000	0000
2	200 psi @ 72° F	200 psi @ 425° F	0000000	000000	0000000	0000

Brass and Bronze Unthreaded Pipe Flanges

Bolt these flanges to equipment or to another same-size, flat-surface flange with a gasket (sold separately). They have good corrosion resistance.

Socket-connect flanges braze onto unthreaded pipe with a brazing ring (sold separately) for a strong, leak-resistant connection. They are also known as Silbraze flanges.

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

Socket-Connect Flanges

Front

Flat Surface on Back

For Use With: Air, Natural Gas, Oil, Water, Steam
Specifications Met: MIL-F-1183
Pipe Nipples and Pipe: Use Schedule 40 brass

Flanges
			Bolt Hole								Brazing Rings
Pipe Size	Flange OD	For Bolt Dia.	Dia.	No. of	Bolt Circle Dia.	Max. Pressure	Max. Steam Pressure	Material		Each		Each
1/2	3 1/2"	1/2"	5/8"	4	2 3/8"	200 psi @ 72° F	200 psi @ 425° F	Bronze	0000000	0000000	0000000	00000
3/4	3 7/8"	1/2"	5/8"	4	2 3/4"	200 psi @ 72° F	200 psi @ 425° F	Bronze	0000000	000000	0000000	0000
1	4 1/4"	1/2"	5/8"	4	3 1/8"	200 psi @ 72° F	200 psi @ 425° F	Bronze	0000000	000000	0000000	0000
1 1/2	5"	1/2"	5/8"	4	3 7/8"	200 psi @ 72° F	200 psi @ 425° F	Bronze	0000000	000000	0000000	0000
2	6"	5/8"	3/4"	4	4 3/4"	200 psi @ 72° F	200 psi @ 425° F	Bronze	0000000	000000	0000000	0000

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How to Identify and Measure Fittings

Bronze Unthreaded Pipe Fittings

Brass and Bronze Unthreaded Pipe Flanges