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	Pipe Size Pipe Size

1/8

	Thread Type Thread Type

BSPT

NPT

	Type Type	Show

Union

	Type Type	Hide

	Material Material	Show

Bronze

	Material Material	Hide

	Connection Style Connection Style

Threaded

Socket Connect

	For Use With For Use With

	Connection Type Connection Type


Pipe	Tube

	Shape Shape

	Straight

	Gender Gender

Female

Male

	Specifications Met Specifications Met

ANSI/ASME

ASTM

BS21

Mil. Spec.

NSF/ANSI

	Copper Tube Size Copper Tube Size

	Maximum Pressure Maximum Pressure

200 psi @ 72° F

300 psi @ 72° F

	System of Measurement System of Measurement

Inch

	Length Length

	For Pipe Material For Pipe Material

Steel

Brass

	Body Shape Body Shape

	Hex

	Socket Connect Type Socket Connect Type


Braze	Solder

Press

	Maximum Steam Pressure Maximum Steam Pressure

125 psi @ 400° F

200 psi @ 425° F

	For Pipe Schedule For Pipe Schedule

	40

	Hex Width Hex Width

	Socket Depth Socket Depth

	Class Class

125

	For Tube Material For Tube Material

Copper

	For Copper Tubing Type For Copper Tubing Type

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51 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.

Low-Pressure Brass and Bronze Threaded Pipe Fittings

Use these fittings in low-pressure flow applications. They have good corrosion resistance.

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

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

Union Straight Connectors

For Use With:
NPT: Air, Drinking Water, Natural Gas, Oil
BSPT: Air, Natural Gas, Oil, Steam, Water
Class: 125
Specifications Met:
NPT: ANSI/ASME B1.20.1, ANSI/ASME B16.15, NSF/ANSI 61
BSPT: ASTM B584, BS21
Pipe Nipples and Pipe: Use Schedule 40 brass
Flanges:
NPT: Use Class 150 brass
BSPT: Use Class 150 bronze

BSPT Female
Pipe Size	Max. Pressure	Max. Steam Pressure	Material		Each
1/8	200 psi @ 72° F	125 psi @ 400° F	Bronze	00000000	000000
1/4	200 psi @ 72° F	125 psi @ 400° F	Bronze	00000000	00000
3/8	200 psi @ 72° F	125 psi @ 400° F	Bronze	00000000	00000
1/2	200 psi @ 72° F	125 psi @ 400° F	Bronze	00000000	00000
3/4	200 psi @ 72° F	125 psi @ 400° F	Bronze	00000000	00000
1	200 psi @ 72° F	125 psi @ 400° F	Bronze	00000000	00000
1 1/4	200 psi @ 72° F	125 psi @ 400° F	Bronze	00000000	00000
1 1/2	200 psi @ 72° F	125 psi @ 400° F	Bronze	00000000	00000
2	200 psi @ 72° F	125 psi @ 400° F	Bronze	00000000	000000

Bronze Unthreaded 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.

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	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

Solder-Connect Fittings for Copper Tubing

Temperature Range: 32° to 200° F

Solder these fittings to copper tubing or the tube end of another fitting for a permanent, leak-tight connection. They are also known as sweat fittings. Fittings have good corrosion resistance. To adhere to safety standards for drinking water systems, use fittings that meet NSF/ANSI 61, EN 1057, or DVGW GW 8(P).

Copper tube size is the accepted designation of the copper tubing industry, not the actual tube OD.

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

Union Straight Connectors, Female Socket-Connect Tube

For Use With: Drinking Water
Tubing: Use with K, M, L copper
Specifications Met: See table

Union connectors separate into three pieces for easy access to your line.

Copper Tube Size	For Tube OD	Material	Max. Pressure	Specifications Met		Each
2 1/2	2 5/8"	Bronze	300 psi @ 72° F	ANSI/ASME B16.18, NSF/ANSI 61	00000000	0000000
3	3 1/8"	Bronze	300 psi @ 72° F	ANSI/ASME B16.18, NSF/ANSI 61	00000000	000000

Press-Connect Fittings for Copper Tubing

For Use With: Drinking Water
Maximum Pressure: 200psi @ 72° F
Temperature Range: 0° to 250° F
Tubing: Use with K, M, L copper
Specifications Met: ANSI/ASME B16.51, NSF/ANSI 61, UL 213

Crimp these fittings to copper tubing with a crimping tool (sold separately). An O-ring on the inside of the fitting creates a leak-tight connection that doesn’t require heat or soldering. They are comparable to Viega ProPress fittings. Fittings have good corrosion resistance. They meet NSF/ANSI safety standards for use with drinking water systems.

Unions separate into three pieces for easy access to your line. Union adapters for galvanized steel threaded pipe join copper tubing to galvanized threaded connections on hot water heaters.

Copper tube size is the accepted designation of the copper tubing industry, not the actual tube OD.

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

Union Straight Adapters, Female Press-Connect Tube × Male Threaded Pipe

NPT Threads
Copper Tube Size	For Tube OD	Pipe Size	Lg.	Material		Each
1/2	5/8"	1/2	2 19/32"	Bronze	00000000	000000
3/4	7/8"	3/4	2 29/32"	Bronze	00000000	00000
1	1 1/8"	1	3 29/64"	Bronze	00000000	00000
1 1/4	1 3/8"	1 1/4	3 33/64"	Bronze	00000000	00000
1 1/2	1 5/8"	1 1/2	4 15/32"	Bronze	00000000	000000
2	2 1/8"	2	4 9/16"	Bronze	00000000	000000

Union Straight Adapters, Female Press-Connect Tube × Female Threaded Pipe

NPT Threads
Copper Tube Size	For Tube OD	Pipe Size	Lg.	Material		Each
1/2	5/8"	1/2	2 17/64"	Bronze	00000000	000000
3/4	7/8"	3/4	2 27/64"	Bronze	00000000	00000
1	1 1/8"	1	2 7/8"	Bronze	00000000	00000
1 1/4	1 3/8"	1 1/4	2 31/32"	Bronze	00000000	00000
1 1/2	1 5/8"	1 1/2	3 7/8"	Bronze	00000000	000000
2	2 1/8"	2	3 59/64"	Bronze	00000000	000000

Union Straight Adapters for Galvanized Steel Threaded Pipe, Female Press-Connect Tube × Female Pipe

NPT Threads
Copper Tube Size	For Tube OD	Pipe Size	Lg.	Material		Each
1/2	5/8"	1/2	2 15/64"	Bronze	00000000	000000
3/4	7/8"	3/4	2 9/16"	Bronze	00000000	00000
1	1 1/8"	1	2 9/16"	Bronze	00000000	00000
1 1/4	1 3/8"	1 1/4	2 11/16"	Bronze	00000000	000000
1 1/2	1 5/8"	1 1/2	3 7/64"	Bronze	00000000	000000
2	2 1/8"	2	3 17/32"	Bronze	00000000	000000

Union Straight Connectors, Female Press-Connect Tube

Copper Tube Size	For Tube OD	Lg.	Material		Each
1/2	5/8"	2 27/32"	Bronze	0000000	000000
3/4	7/8"	3 5/32"	Bronze	0000000	00000
1	1 1/8"	3 41/64"	Bronze	0000000	00000
1 1/4	1 3/8"	3 11/16"	Bronze	00000000	00000
1 1/2	1 5/8"	4 61/64"	Bronze	00000000	000000
2	2 1/8"	5 7/32"	Bronze	00000000	000000

Replacement O-Rings

For Copper Tube Size	For Tube OD	O-Ring Material		Each
1/2	5/8"	EPDM Rubber	0000000	00000
3/4	7/8"	EPDM Rubber	0000000	0000
1	1 1/8"	EPDM Rubber	0000000	0000
1 1/4	1 3/8"	EPDM Rubber	00000000	0000
1 1/2	1 5/8"	EPDM Rubber	00000000	0000
2	2 1/8"	EPDM Rubber	00000000	0000

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