Valve Union Fittings | McMaster-Carr

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35 Products

Flow-Control Valve Union Fittings

Use these fittings with union ball valves.

	For Pipe Size	OD	ID		Pair
Dark Gray PVC







				Socket Connect

				2 1/2	6 11/16"	2 7/8"	4887K29	000000


				3	6 11/16"	4 3/8"	4887K31	00000
				4	8 9/16"	5 3/8"	4887K32	00000




						Threaded BSPP

						1	3 3/8"	15/16"	4543K63	00000


						1 1/2	4 3/8"	1 1/2"	4543K65	00000
						2	5 3/16"	1 15/16"	4543K66	00000




								Threaded NPT

								3	6 11/16"	4 3/8"	4887K26	000000


								4	8 9/16"	5 3/8"	4887K27	000000




										Threaded NPT and Socket Connect

										1/2	1 7/8"	1/2"	4812T51	00000


										1/2	2 1/4"	1 1/8"	4887K11	00000
										3/4	2 1/4"	3/4"	4812T53	00000
										3/4	2 5/8"	1 3/8"	4887K12	00000
										1	2 1/2"	15/16"	4812T55	00000
										1	3"	1 3/4"	4887K15	00000
										1 1/4	4"	2 1/8"	4887K16	00000
										1 1/2	3 1/2"	1 1/2"	4812T57	00000
										1 1/2	4"	2 3/8"	4887K17	00000
										2	4 5/16"	1 15/16"	4812T59	00000
										2	4 3/4"	3 3/8"	4887K18	00000


										Light Gray CPVC







Socket Connect

2 1/2	6.6875"													3.375"	4719K37	00000


3	6 11/16"													4 3/8"	4719K38	00000
4	8 9/16"	5 3/8"												4719K39	000000




		Threaded BSPP

		2	5 3/16"											1 15/16"	4727K56	000000




				Threaded NPT

				3	8 9/16"									4 3/8"	4719K35	000000




														Threaded NPT and Socket Connect

														1/2	1 7/8"	1/2"	4823T31	00000


						1/2	2 1/4"							1 1/8"	4719K21	00000
						3/4	2 1/4"							3/4"	4823T33	00000
						3/4	2 5/8"							1 3/8"	4719K22	00000
						1	2 1/2"							15/16"	4823T35	00000
						1	3"							2 3/8"	4719K23	00000
						1 1/4	4"							1 3/4"	4719K24	00000
						1 1/2	3 1/2"							1 1/2"	4823T37	00000
						1 1/2	4"							2 1/8"	4719K25	00000
						2	4 5/16"	1 15/16"	4823T39					000000
						2	4 3/4"	3 3/8"	4719K26					00000