Brass (Schedule 40) Unthreaded Pipe

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Material

Brass

Bronze

Threading

Unthreaded

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U.S.–Mexico–Canada Agreement (USMCA) Qualifying

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EAR99

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Fitting Finished Material

69 Products

About Pipe and Fittings

Measure your pipe and fittings to identify their pipe size, thread size, schedule, and thread type. Then, find compatible components.

Fitting Type

Pipe

Pair with fittings to transfer water, air, and other materials

Fitting Type

Union

Separate into three pieces to access lines without disassembling completely

10 products

Cap

Cover a pipe end to seal it

8 products

Standard-Wall Brass and Bronze Unthreaded Pipe Nipples and Pipe

With two unthreaded ends, this pipe is designed for brazed connections, which are stronger than threaded connections and less likely to leak. It is also known as Schedule 40. Pipe is brass, which has good corrosion resistance.

Pipe—Unthreaded

Braze Socket Male

Seamless—Pipe has a smooth interior for unrestricted flow and is stronger than welded pipe.

	Pipe						Brazing Rings
	Lg., ft.	Construction	Pipe Schedule	Material		Each		Each
Braze Socket Male







				1/8 Pipe Size

				1	Seamless	40	230 Brass	4501K71	00000	———	0


				3	Seamless	40	230 Brass	4501K51	00000	———	0
				6	Seamless	40	230 Brass	4501K39	00000	———	0




						1/4 Pipe Size

						1	Seamless	40	230 Brass	4501K72	00000	———	0


						3	Seamless	40	230 Brass	4501K52	00000	———	0
						6	Seamless	40	230 Brass	4501K31	00000	———	0




								3/8 Pipe Size

								1	Seamless	40	230 Brass	4501K73	00000	———	0


								3	Seamless	40	230 Brass	4501K53	00000	———	0
								6	Seamless	40	230 Brass	4501K32	00000	———	0




										1/2 Pipe Size

										1	Seamless	40	230 Brass	4501K74	00000	2190K45	00000


										3	Seamless	40	230 Brass	4501K54	00000	2190K45	0000
										6	Seamless	40	230 Brass	4501K33	000000	2190K45	0000




												3/4 Pipe Size

												1	Seamless	40	230 Brass	4501K75	00000	2190K46	0000


												3	Seamless	40	230 Brass	4501K55	00000	2190K46	0000
												6	Seamless	40	230 Brass	4501K34	000000	2190K46	0000




														1 Pipe Size

1														Seamless	40	230 Brass	4501K76	00000	2190K47	0000


3	Seamless													40	230 Brass	4501K56	000000	2190K47	0000
6	Seamless													40	230 Brass	4501K35	000000	2190K47	0000




		1 1/4 Pipe Size

		1	Seamless											40	230 Brass	4501K77	00000	———	0


		3	Seamless											40	230 Brass	4501K57	000000	———	0
		6	Seamless											40	230 Brass	4501K36	000000	———	0




				1 1/2 Pipe Size

				1	Seamless									40	230 Brass	4501K78	00000	2190K48	0000


				3	Seamless									40	230 Brass	4501K58	000000	2190K48	0000
				6	Seamless									40	230 Brass	4501K37	000000	2190K48	0000




						2 Pipe Size

						1	Seamless							40	230 Brass	4501K79	00000	2190K49	0000


						3	Seamless							40	230 Brass	4501K59	000000	2190K49	0000
						6	Seamless							40	230 Brass	4501K38	000000	2190K49	0000

Low-Pressure Brass and Bronze Braze-Socket 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.

Straight Connectors

Braze Socket

Female

	Straights							Brazing Rings
	Pipe Size	Material	Max. Pressure @ Temp.	Max. Steam Pressure @ Temp.	Certification		Each		Each
Braze Socket Female



		1/2	Bronze	200 psi @ 72° F	200 psi @ 425° F	Mil. Spec.	2190K23	000000	2190K45	00000


		3/4	Bronze	200 psi @ 72° F	200 psi @ 425° F	Mil. Spec.	2190K24	00000	2190K46	0000
		1	Bronze	200 psi @ 72° F	200 psi @ 425° F	Mil. Spec.	2190K25	00000	2190K47	0000
		1 1/2	Bronze	200 psi @ 72° F	200 psi @ 425° F	Mil. Spec.	2190K26	00000	2190K48	0000
		2	Bronze	200 psi @ 72° F	200 psi @ 425° F	Mil. Spec.	2190K27	000000	2190K49	0000

Union Straight Connectors

Exploded View

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

	Unions								Brazing Rings
	Pipe Size	Body Shape	Material	Max. Pressure @ Temp.	Max. Steam Pressure @ Temp.	Certification		Each		Each
Braze Socket Female



		1/2	Hex	Bronze	200 psi @ 72° F	200 psi @ 425° F	Mil. Spec.	2190K28	000000	2190K45	00000


		3/4	Hex	Bronze	200 psi @ 72° F	200 psi @ 425° F	Mil. Spec.	2190K29	000000	2190K46	0000
		1	Hex	Bronze	200 psi @ 72° F	200 psi @ 425° F	Mil. Spec.	2190K31	000000	2190K47	0000
		1 1/2	Hex	Bronze	200 psi @ 72° F	200 psi @ 425° F	Mil. Spec.	2190K32	000000	2190K48	0000
		2	Hex	Bronze	200 psi @ 72° F	200 psi @ 425° F	Mil. Spec.	2190K33	000000	2190K49	0000

Short 90° Elbow Connectors

Braze Socket

Female

	Elbows							Brazing Rings
	Pipe Size	Material	Max. Pressure @ Temp.	Max. Steam Pressure @ Temp.	Certification		Each		Each
Braze Socket Female



		1/2	Bronze	200 psi @ 72° F	200 psi @ 425° F	Mil. Spec.	2190K1	000000	2190K45	00000


		3/4	Bronze	200 psi @ 72° F	200 psi @ 425° F	Mil. Spec.	2190K2	00000	2190K46	0000
		1	Bronze	200 psi @ 72° F	200 psi @ 425° F	Mil. Spec.	2190K3	00000	2190K47	0000
		1 1/2	Bronze	200 psi @ 72° F	200 psi @ 425° F	Mil. Spec.	2190K4	00000	2190K48	0000
		2	Bronze	200 psi @ 72° F	200 psi @ 425° F	Mil. Spec.	2190K5	000000	2190K49	0000

Long 90° Elbow Connectors

Braze Socket Female

	Elbows							Brazing Rings
	Pipe Size	Material	Max. Pressure @ Temp.	Max. Steam Pressure @ Temp.	Certification		Each		Each
Braze Socket Female



		1	Bronze	200 psi @ 72° F	200 psi @ 425° F	Mil. Spec.	2190K8	0000000	2190K47	00000


		1 1/2	Bronze	200 psi @ 72° F	200 psi @ 425° F	Mil. Spec.	2190K9	000000	2190K48	0000
		2	Bronze	200 psi @ 72° F	200 psi @ 425° F	Mil. Spec.	2190K11	000000	2190K49	0000

45° Elbow Connectors

Braze Socket

Female

	Material	Max. Pressure @ Temp.	Max. Steam Pressure @ Temp.	Certification		Each
Braze Socket Female



	3/4	Bronze	200 psi @ 72° F	200 psi @ 425° F	Mil. Spec.	2190K35	000000


	1	Bronze	200 psi @ 72° F	200 psi @ 425° F	Mil. Spec.	2190K36	00000
	1 1/2	Bronze	200 psi @ 72° F	200 psi @ 425° F	Mil. Spec.	2190K37	00000
	2	Bronze	200 psi @ 72° F	200 psi @ 425° F	Mil. Spec.	2190K38	000000

Tee Connectors

Braze Socket Female

	Tees							Brazing Rings
	Pipe Size	Material	Max. Pressure @ Temp.	Max. Steam Pressure @ Temp.	Certification		Each		Each
Braze Socket Female



		1/2	Bronze	200 psi @ 72° F	200 psi @ 425° F	Mil. Spec.	2190K12	000000	2190K45	00000


		3/4	Bronze	200 psi @ 72° F	200 psi @ 425° F	Mil. Spec.	2190K13	00000	2190K46	0000
		1	Bronze	200 psi @ 72° F	200 psi @ 425° F	Mil. Spec.	2190K14	00000	2190K47	0000
		1 1/2	Bronze	200 psi @ 72° F	200 psi @ 425° F	Mil. Spec.	2190K15	000000	2190K48	0000
		2	Bronze	200 psi @ 72° F	200 psi @ 425° F	Mil. Spec.	2190K16	000000	2190K49	0000

Caps

Braze Socket

Female

	Caps							Brazing Rings
	Pipe Size	Material	Max. Pressure @ Temp.	Max. Steam Pressure @ Temp.	Certification		Each		Each
Braze Socket Female



		1/2	Bronze	200 psi @ 72° F	200 psi @ 425° F	Mil. Spec.	2190K17	000000	2190K45	00000


		3/4	Bronze	200 psi @ 72° F	200 psi @ 425° F	Mil. Spec.	2190K18	000000	2190K46	0000
		1 1/2	Bronze	200 psi @ 72° F	200 psi @ 425° F	Mil. Spec.	2190K21	000000	2190K48	0000

Low-Pressure 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.

Flanges


Front	Flat Surface on Back

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

	Flanges														Brazing Rings
	Pipe Size					Bolt Hole
	(A)	(B)	Flanged Connection Surface (B)	Flange OD	For Bolt Dia.	Dia.	No. Of	Bolt Circle Dia.	Material	Max. Pressure @ Temp.	Max. Steam Pressure @ Temp.	Certification		Each		Each
Braze Socket Female



		1/2	1/2	Flat	3 1/2"	1/2"	5/8"	4	2 3/8"	Bronze	200 psi @ 72° F	200 psi @ 425° F	Mil. Spec.	2190K39	0000000	2190K45	00000


		3/4	3/4	Flat	3 7/8"	1/2"	5/8"	4	2 3/4"	Bronze	200 psi @ 72° F	200 psi @ 425° F	Mil. Spec.	2190K41	000000	2190K46	0000
		1	1	Flat	4 1/4"	1/2"	5/8"	4	3 1/8"	Bronze	200 psi @ 72° F	200 psi @ 425° F	Mil. Spec.	2190K42	000000	2190K47	0000
		1 1/2	1 1/2	Flat	5"	1/2"	5/8"	4	3 7/8"	Bronze	200 psi @ 72° F	200 psi @ 425° F	Mil. Spec.	2190K43	000000	2190K48	0000
		2	2	Flat	6"	5/8"	3/4"	4	4 3/4"	Bronze	200 psi @ 72° F	200 psi @ 425° F	Mil. Spec.	2190K44	000000	2190K49	0000

Blind Flanges


Front	Flat Surface on Back

					Bolt Hole
	Pipe Size	Flanged Connection Surface	Flange OD	For Bolt Dia.	Dia.	No. Of	Bolt Circle Dia.	Pressure Class	Material	Max. Pressure @ Temp.		Each
Flanged



		2	Flat	6"	1/2"	3/4"	4	4 3/4"	150	Brass	225 psi @ 72° F	4429K861	0000000


		2 1/2	Flat	7"	1/2"	3/4"	4	5 1/2"	150	Brass	225 psi @ 72° F	4429K862	000000