Schedule 80 Unions | McMaster-Carr

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206 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

Bridge the gap between pipe with different fitting connections

74 products

Performance

Chemical Resistant

Stay strong when exposed to acids, bases, and other harsh chemicals

163 products

Corrosion Resistant

Withstand exposure to moisture and mild chemicals

41 products

Thick-Wall Plastic Pipe Fittings for Water

Connect these fittings to Schedule 80 pipe. With thicker, stronger walls than standard-wall fittings, they can handle heavy duty supply applications, such as water processing, wastewater treatment, and irrigation. Fittings are plastic for good corrosion resistance. They meet ASTM specifications and testing requirements for material quality.

To prevent leaks in threaded connections, apply a sealant to the male threads. Threaded connections can be taken apart as needed for maintenance and repair. For metal threads, use PTFE tape. For plastic threads, apply a non-hardening, plastic-compatible sealant. Tape or sealants with PTFE are not recommended for plastic-to-plastic connections. When making a threaded connection be careful not to overtighten the threads. To prevent cracks and leaks, finger tighten the fitting, then wrench-tighten one to two turns.

Warning: Never use plastic pipe fittings, flanges, and pipe with compressed air or gas.

Note: For fittings that are not rated for pressure, you can use the pressure rating of the plastic pipe as a reference. Threaded fittings are limited to 50% of the rated pressure of the pipe.

Union Straight Connectors

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

Cement-Socket Fitting Connection—Attach socket-connect ends to unthreaded pipe or another socket-connect fitting with a PVC primer and cement (also known as solvent weld).

NSF/ANSI 61—To adhere to safety standards for drinking water systems, use pipe that meets NSF/ANSI 61.

	Pipe Schedule	Material	Color	Max. Pressure @ Temp.	Food Industry Std.		Each
NPT Female
NPT Female


	1/4	80	PVC	Dark Gray	Not Rated	NSF/ANSI 61	4596K83	000000


	3/8	80	PVC	Dark Gray	Not Rated	NSF/ANSI 61	4596K84	00000
	1/2	80	PVC	Dark Gray	Not Rated	NSF/ANSI 61	4596K62	0000
	3/4	80	PVC	Dark Gray	Not Rated	NSF/ANSI 61	4596K63	00000
	1	80	PVC	Dark Gray	Not Rated	NSF/ANSI 61	4596K64	00000
	1 1/4	80	PVC	Dark Gray	Not Rated	NSF/ANSI 61	4596K65	00000
	1 1/2	80	PVC	Dark Gray	Not Rated	NSF/ANSI 61	4596K66	00000
	2	80	PVC	Dark Gray	Not Rated	NSF/ANSI 61	4596K67	00000
	2 1/2	80	PVC	Dark Gray	Not Rated	NSF/ANSI 61	4596K85	00000
	3	80	PVC	Dark Gray	Not Rated	NSF/ANSI 61	4596K68	000000
	4	80	PVC	Dark Gray	Not Rated	NSF/ANSI 61	4596K86	000000


	6	80	PVC	Dark Gray	Not Rated	NSF/ANSI 61	4596K89	000000


	Cement Socket Female
	Cement Socket Female


			1/4	80	PVC	Dark Gray	Not Rated	NSF/ANSI 61	4881K68	00000


			3/8	80	PVC	Dark Gray	Not Rated	NSF/ANSI 61	4881K69	00000
			1/2	80	PVC	Dark Gray	Not Rated	NSF/ANSI 61	4881K61	0000
			3/4	80	PVC	Dark Gray	Not Rated	NSF/ANSI 61	4881K62	0000
			1	80	PVC	Dark Gray	Not Rated	NSF/ANSI 61	4881K63	0000
			1 1/4	80	PVC	Dark Gray	Not Rated	NSF/ANSI 61	4881K64	00000
			1 1/2	80	PVC	Dark Gray	Not Rated	NSF/ANSI 61	4881K65	00000
			2	80	PVC	Dark Gray	Not Rated	NSF/ANSI 61	4881K66	00000
			2 1/2	80	PVC	Dark Gray	Not Rated	NSF/ANSI 61	4881K43	00000
			3	80	PVC	Dark Gray	Not Rated	NSF/ANSI 61	4881K67	00000
			4	80	PVC	Dark Gray	Not Rated	NSF/ANSI 61	4881K44	00000


			6	80	PVC	Dark Gray	Not Rated	NSF/ANSI 61	4881K45	000000

Union Straight Connectors with Collar

Threaded Socket Female

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

Fittings with collar have a stainless steel reinforcement on the female threads to prevent the threads from cracking.

	Pipe Schedule	Material	Color	Max. Pressure @ Temp.		Each
NPT Female



	1/2	80	Polypropylene	Black	150 psi @ 72° F	4883K91	000000


	3/4	80	Polypropylene	Black	150 psi @ 72° F	4883K92	00000
	1	80	Polypropylene	Black	150 psi @ 72° F	4883K93	000000
	1 1/2	80	Polypropylene	Black	150 psi @ 72° F	4883K94	000000
	2	80	Polypropylene	Black	150 psi @ 72° F	4883K95	000000

Union Straight Adapters

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

Cement-Socket Fitting Connection—Attach socket-connect ends to unthreaded pipe or another socket-connect fitting with a PVC primer and cement (also known as solvent weld).

NSF/ANSI 61—To adhere to safety standards for drinking water systems, use pipe that meets NSF/ANSI 61.

	Pipe Size		DIN Size, mm
	(A)	(B)	(A)	(B)	Pipe Schedule	Body Shape	Material	Color	Max. Pressure @ Temp.	Food Industry Std.		Each
Cement Socket Female × Cement Socket Female



		1/2	—	—	20	80	—	PVC	Dark Gray	Not Rated	NSF/ANSI 61	5460K11	000000


		3/4	—	—	25	80	—	PVC	Dark Gray	Not Rated	NSF/ANSI 61	5460K12	00000
		1	—	—	32	80	—	PVC	Dark Gray	Not Rated	NSF/ANSI 61	5460K13	00000
		1 1/4	—	—	40	80	—	PVC	Dark Gray	Not Rated	NSF/ANSI 61	5460K14	00000
		1 1/2	—	—	50	80	—	PVC	Dark Gray	Not Rated	NSF/ANSI 61	5460K15	00000
		2	—	—	63	80	—	PVC	Dark Gray	Not Rated	NSF/ANSI 61	5460K16	00000
		3	—	—	90	80	Round	PVC	Dark Gray	Not Rated	NSF/ANSI 61	5913N11	000000
		4	—	—	110	80	—	PVC	Dark Gray	Not Rated	NSF/ANSI 61	5460K18	000000


		Cement Socket Female × Cement Socket Male



				1/2	1/2	—	—	80	—	PVC	Dark Gray	Not Rated	NSF/ANSI 61	4881K042	0000


				3/4	3/4	—	—	80	—	PVC	Dark Gray	Not Rated	NSF/ANSI 61	4881K043	0000
				1	1	—	—	80	—	PVC	Dark Gray	Not Rated	NSF/ANSI 61	4881K044	00000
				1 1/4	1 1/4	—	—	80	—	PVC	Dark Gray	Not Rated	NSF/ANSI 61	4881K045	00000
				1 1/2	1 1/2	—	—	80	—	PVC	Dark Gray	Not Rated	NSF/ANSI 61	4881K046	00000
				2	2	—	—	80	—	PVC	Dark Gray	Not Rated	NSF/ANSI 61	4881K047	00000
				2 1/2	2 1/2	—	—	80	—	PVC	Dark Gray	Not Rated	NSF/ANSI 61	4881K048	00000
				3	3	—	—	80	—	PVC	Dark Gray	Not Rated	NSF/ANSI 61	4881K049	00000
				4	4	—	—	80	—	PVC	Dark Gray	Not Rated	NSF/ANSI 61	4881K051	00000


				Cement Socket Female × NPT Female



						1/4	1/4	—	—	80	—	PVC	Dark Gray	Not Rated	NSF/ANSI 61	4596K658	00000


						1/2	1/2	—	—	80	—	PVC	Dark Gray	Not Rated	NSF/ANSI 61	4596K641	0000
						3/4	3/4	—	—	80	—	PVC	Dark Gray	Not Rated	NSF/ANSI 61	4596K642	00000
						1	1	—	—	80	—	PVC	Dark Gray	Not Rated	NSF/ANSI 61	4596K643	00000
						1 1/4	1 1/4	—	—	80	—	PVC	Dark Gray	Not Rated	NSF/ANSI 61	4596K644	00000
						1 1/2	1 1/2	—	—	80	—	PVC	Dark Gray	Not Rated	NSF/ANSI 61	4596K645	00000
						2	2	—	—	80	—	PVC	Dark Gray	Not Rated	NSF/ANSI 61	4596K646	00000
						2 1/2	2 1/2	—	—	80	—	PVC	Dark Gray	Not Rated	NSF/ANSI 61	4596K647	00000
						3	3	—	—	80	—	PVC	Dark Gray	Not Rated	NSF/ANSI 61	4596K648	000000
						4	4	—	—	80	—	PVC	Dark Gray	Not Rated	NSF/ANSI 61	4596K649	000000
						—	1/2	20	—	80	—	PVC	Dark Gray	Not Rated	NSF/ANSI 61	4596K278	00000


						—	3/4	25	—	80	—	PVC	Dark Gray	Not Rated	NSF/ANSI 61	4596K279	00000
						—	1	32	—	80	—	PVC	Dark Gray	Not Rated	NSF/ANSI 61	4596K281	00000
						—	1 1/4	40	—	80	—	PVC	Dark Gray	Not Rated	NSF/ANSI 61	4596K282	00000
						—	1 1/2	50	—	80	—	PVC	Dark Gray	Not Rated	NSF/ANSI 61	4596K283	00000
						—	2	63	—	80	—	PVC	Dark Gray	Not Rated	NSF/ANSI 61	4596K284	000000
						—	3	90	—	80	Round	PVC	Dark Gray	Not Rated	NSF/ANSI 61	5913N12	000000
						—	4	110	—	80	Round	PVC	Dark Gray	Not Rated	NSF/ANSI 61	5913N13	000000


						Cement Socket Female × BSPT Female



1/2								1/2	—	—	80	—	PVC	Dark Gray	Not Rated	NSF/ANSI 61	4596K261	00000


3/4	3/4							—	—	80	—	PVC	Dark Gray	Not Rated	NSF/ANSI 61	4596K262	00000
1	1							—	—	80	—	PVC	Dark Gray	Not Rated	NSF/ANSI 61	4596K263	00000
1	1							—	—	80	Round	PVC	Dark Gray	Not Rated	NSF/ANSI 61	5913N14	00000
1 1/4	1 1/4							—	—	80	Round	PVC	Dark Gray	Not Rated	NSF/ANSI 61	5913N15	00000
1 1/2	1 1/2							—	—	80	—	PVC	Dark Gray	Not Rated	NSF/ANSI 61	4596K264	00000
1 1/2	1 1/2							—	—	80	Round	PVC	Dark Gray	Not Rated	NSF/ANSI 61	5913N16	00000
2	2							—	—	80	—	PVC	Dark Gray	Not Rated	NSF/ANSI 61	4596K265	000000
2	2							—	—	80	Round	PVC	Dark Gray	Not Rated	NSF/ANSI 61	5913N17	000000

Union Straight Adapters with Collar


Front	Back

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

Fittings with collar have a stainless steel reinforcement on the female threads to prevent the threads from cracking.

Cement-Socket Fitting Connection—Attach socket-connect ends to unthreaded pipe or another socket-connect fitting with a PVC primer and cement (also known as solvent weld).

NSF/ANSI 61—To adhere to safety standards for drinking water systems, use pipe that meets NSF/ANSI 61.

	Pipe Size
	(A)	(B)	Pipe Schedule	Material	Color	Max. Pressure @ Temp.	Threaded Insert Material	Food Industry Std.		Each
Cement Socket Female × NPT Female



		1/4	1/4	80	PVC	Dark Gray	Not Rated	—	NSF/ANSI 61	9174K41	000000


		3/8	3/8	80	PVC	Dark Gray	Not Rated	—	NSF/ANSI 61	9174K42	00000
		1/2	1/2	80	PVC	Dark Gray	Not Rated	—	NSF/ANSI 61	9174K43	00000
		1/2	1/2	80	PVC	Dark Gray	Not Rated	Brass	—	4596K291	00000
		3/4	3/4	80	PVC	Dark Gray	Not Rated	—	NSF/ANSI 61	9174K44	00000
		3/4	3/4	80	PVC	Dark Gray	Not Rated	Brass	—	4596K292	00000
		1	1	80	PVC	Dark Gray	Not Rated	—	NSF/ANSI 61	9174K45	00000
		1	1	80	PVC	Dark Gray	Not Rated	Brass	—	4596K293	000000
		1 1/4	1 1/4	80	PVC	Dark Gray	Not Rated	—	NSF/ANSI 61	9174K46	00000
		1 1/4	1 1/4	80	PVC	Dark Gray	Not Rated	Brass	—	4596K294	000000
		1 1/2	1 1/2	80	PVC	Dark Gray	Not Rated	—	NSF/ANSI 61	9174K47	00000


		1 1/2	1 1/2	80	PVC	Dark Gray	Not Rated	Brass	—	4596K295	000000
		2	2	80	PVC	Dark Gray	Not Rated	—	NSF/ANSI 61	9174K48	000000
		2	2	80	PVC	Dark Gray	Not Rated	Brass	—	4596K296	000000

Medium-Pressure Iron and Steel Threaded Pipe Fittings

With better strength than our low-pressure iron and steel pipe fittings, these can handle medium-pressure applications. They are for use in noncorrosive environments.

Union Straight Connectors

NPT Female (Exploded View)

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

	Pressure Class	Body Shape	Material	Max. Pressure @ Temp.	Max. Steam Pressure @ Temp.	Certification		Each
NPT Female



	1/8	300	Hex	Iron	600 psi @ 72° F	230 psi @ 550° F	UL Listed	4627K377	000000


	1/4	300	Hex	Iron	600 psi @ 72° F	230 psi @ 550° F	UL Listed	4627K289	00000
	3/8	300	Hex	Iron	600 psi @ 72° F	230 psi @ 550° F	UL Listed	4627K291	00000
	1/2	300	Hex	Iron	600 psi @ 72° F	230 psi @ 550° F	UL Listed	4627K292	00000
	3/4	300	Hex	Iron	600 psi @ 72° F	230 psi @ 550° F	UL Listed	4627K295	00000
	1	300	Hex	Iron	600 psi @ 72° F	230 psi @ 550° F	UL Listed	4627K296	00000
	1 1/4	300	Hex	Iron	600 psi @ 72° F	230 psi @ 550° F	UL Listed	4627K297	00000
	1 1/2	300	Hex	Iron	600 psi @ 72° F	230 psi @ 550° F	UL Listed	4627K298	00000
	2	300	Hex	Iron	600 psi @ 72° F	230 psi @ 550° F	UL Listed	4627K299	00000
	2 1/2	300	Hex	Iron	600 psi @ 72° F	230 psi @ 550° F	UL Listed	4627K378	000000
	3	300	Hex	Iron	600 psi @ 72° F	230 psi @ 550° F	UL Listed	4627K379	000000

Union 90° Elbow Connectors

NPT Female × NPT

Male

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

	Pressure Class	Material	Max. Pressure @ Temp.	Max. Steam Pressure @ Temp.	Certification		Each
NPT Female



	3/8	300	Iron	600 psi @ 72° F	230 psi @ 550° F	UL Listed	4627K339	0000000


	1/2	300	Iron	600 psi @ 72° F	230 psi @ 550° F	UL Listed	4627K301	00000
	3/4	300	Iron	600 psi @ 72° F	230 psi @ 550° F	UL Listed	4627K302	000000
	1	300	Iron	600 psi @ 72° F	230 psi @ 550° F	UL Listed	4627K341	000000

High-Pressure Stainless Steel Threaded Pipe Fittings

Use these heavy duty fittings in high-pressure flow applications.

Union Straight Connectors

Female

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

304 Stainless Steel—Fittings hold up in humid, damp, and washdown environments but will corrode if exposed to salt water or chemicals.

316 Stainless Steel—Fittings are the most corrosion resistant. They stand up to wet environments, just like 304 stainless steel fittings, but unlike 304 stainless steel, they will not corrode from salt water, chlorine solutions, and chemicals.

						304 Stainless Steel			316 Stainless Steel
	Pipe Size	Dash Size	Pressure Class	Body Shape	Max. Pressure @ Temp.	Max. Steam Pressure @ Temp.		Each	Max. Steam Pressure @ Temp.		Each
NPT Female



		1/8	02	3000	Hex	2,900 psi @ 72° F	1,900 psi @ 350° F	45525K591	000000	2,000 psi @ 350° F	4443K691	000000


		1/4	04	3000	Hex	2,900 psi @ 72° F	1,900 psi @ 350° F	45525K592	00000	2,000 psi @ 350° F	4443K692	000000
		3/8	06	3000	Hex	2,900 psi @ 72° F	1,900 psi @ 350° F	45525K593	00000	2,000 psi @ 350° F	4443K693	000000
		1/2	08	3000	Hex	2,900 psi @ 72° F	1,900 psi @ 350° F	45525K594	00000	2,000 psi @ 350° F	4443K694	000000
		3/4	12	3000	Hex	2,900 psi @ 72° F	1,900 psi @ 350° F	45525K595	000000	2,000 psi @ 350° F	4443K695	000000
		1	16	3000	Hex	2,900 psi @ 72° F	1,900 psi @ 350° F	45525K596	000000	2,000 psi @ 350° F	4443K696	000000
		1 1/4	20	3000	Hex	2,900 psi @ 72° F	1,900 psi @ 350° F	45525K597	000000	2,000 psi @ 350° F	4443K697	000000
		1 1/2	24	3000	Hex	2,900 psi @ 72° F	1,900 psi @ 350° F	45525K598	000000	2,000 psi @ 350° F	4443K698	000000
		2	32	3000	Hex	2,900 psi @ 72° F	1,900 psi @ 350° F	45525K599	000000	2,000 psi @ 350° F	4443K699	000000

CPVC Pipe Fittings for Chemicals

Made of CPVC, these fittings withstand salt solutions, acids, and other harsh substances. They have thick, strong walls to handle heavy duty industrial plumbing and water supply applications, such as water processing and wastewater treatment. These fittings are comparable to Corzan. Some meet ASTM D1784 specifications and testing requirements for material quality.

Warning: Never use plastic pipe fittings, flanges, and pipe with compressed air or gas.

Union Straight Connectors

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

Cement-Socket Fitting Connection—Attach socket-connect ends to unthreaded pipe or another socket-connect fitting with a CPVC primer and cement (also known as solvent weld).

80 Pipe Schedule—Schedule 80 fittings have thick, strong walls for heavy duty, industrial applications.

NSF/ANSI 61—To adhere to safety standards for drinking water systems, use pipe that meets NSF/ANSI 61.

	Pipe Schedule	Material	Color	Max. Pressure @ Temp.	Food Industry Std.		Each
NPT Female



	1/4	80	CPVC	Light Gray	Not Rated	NSF/ANSI 61	4589K13	000000


	3/8	80	CPVC	Light Gray	Not Rated	NSF/ANSI 61	4589K71	00000
	1/2	80	CPVC	Light Gray	Not Rated	NSF/ANSI 61	4589K72	00000
	3/4	80	CPVC	Light Gray	Not Rated	NSF/ANSI 61	4589K73	00000
	1	80	CPVC	Light Gray	Not Rated	NSF/ANSI 61	4589K74	00000
	1 1/4	80	CPVC	Light Gray	Not Rated	NSF/ANSI 61	4589K75	00000
	1 1/2	80	CPVC	Light Gray	Not Rated	NSF/ANSI 61	4589K76	00000
	2	80	CPVC	Light Gray	Not Rated	NSF/ANSI 61	4589K77	00000
	2 1/2	80	CPVC	Light Gray	Not Rated	NSF/ANSI 61	4589K141	000000
	3	80	CPVC	Light Gray	Not Rated	NSF/ANSI 61	4589K142	000000
	4	80	CPVC	Light Gray	Not Rated	NSF/ANSI 61	4589K143	000000


	Cement Socket Female
	Cement Socket Female


			1/4	80	CPVC	Light Gray	Not Rated	NSF/ANSI 61	6826K97	00000


			3/8	80	CPVC	Light Gray	Not Rated	NSF/ANSI 61	6826K611	00000
			1/2	80	CPVC	Light Gray	Not Rated	NSF/ANSI 61	6826K62	00000
			3/4	80	CPVC	Light Gray	Not Rated	NSF/ANSI 61	6826K63	00000
			1	80	CPVC	Light Gray	Not Rated	NSF/ANSI 61	6826K64	00000
			1 1/4	80	CPVC	Light Gray	Not Rated	NSF/ANSI 61	6826K65	00000
			1 1/2	80	CPVC	Light Gray	Not Rated	NSF/ANSI 61	6826K66	00000
			2	80	CPVC	Light Gray	Not Rated	NSF/ANSI 61	6826K67	00000
			2 1/2	80	CPVC	Light Gray	Not Rated	NSF/ANSI 61	6826K138	000000
			3	80	CPVC	Light Gray	Not Rated	NSF/ANSI 61	6826K68	000000
			4	80	CPVC	Light Gray	Not Rated	NSF/ANSI 61	6826K69	000000


			6	80	CPVC	Light Gray	Not Rated	NSF/ANSI 61	6826K21	000000

Union Straight Adapters


Cement Socket Female x Cement Socket Female	Cement Socket Female × NPT Female

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

Cement-Socket Fitting Connection—Attach socket-connect ends to unthreaded pipe or another socket-connect fitting with a CPVC primer and cement (also known as solvent weld).

80 Pipe Schedule—Schedule 80 fittings have thick, strong walls for heavy duty, industrial applications.

NSF/ANSI 61—To adhere to safety standards for drinking water systems, use pipe that meets NSF/ANSI 61.

	Pipe Size
	(A)	(B)	DIN Size (B), mm	Pipe Schedule	Material	Color	Max. Pressure @ Temp.	Food Industry Std.		Each
Cement Socket Female × Cement Socket Female



		1/2	—	20	80	CPVC	Light Gray	230 psi @ 72° F	NSF/ANSI 61	4589K413	000000


		1/2	—	25	80	CPVC	Light Gray	230 psi @ 72° F	NSF/ANSI 61	4589K414	00000
		1	—	32	80	CPVC	Light Gray	230 psi @ 72° F	NSF/ANSI 61	4589K415	00000
		1 1/4	—	40	80	CPVC	Light Gray	230 psi @ 72° F	NSF/ANSI 61	4589K416	00000
		1 1/2	—	50	80	CPVC	Light Gray	230 psi @ 72° F	NSF/ANSI 61	4589K417	00000


		Cement Socket Female × NPT Female



				1/2	1/2	—	80	CPVC	Light Gray	Not Rated	NSF/ANSI 61	4589K191	00000


				3/4	3/4	—	80	CPVC	Light Gray	Not Rated	NSF/ANSI 61	4589K192	00000
				1	1	—	80	CPVC	Light Gray	Not Rated	NSF/ANSI 61	4589K193	00000
				1 1/4	1 1/4	—	80	CPVC	Light Gray	Not Rated	NSF/ANSI 61	4589K194	00000
				1 1/2	1 1/2	—	80	CPVC	Light Gray	Not Rated	NSF/ANSI 61	4589K195	00000
				2	2	—	80	CPVC	Light Gray	Not Rated	NSF/ANSI 61	4589K196	00000
				2 1/2	2 1/2	—	80	CPVC	Light Gray	Not Rated	NSF/ANSI 61	4589K197	000000
				3	3	—	80	CPVC	Light Gray	Not Rated	NSF/ANSI 61	4589K198	000000
				4	4	—	80	CPVC	Light Gray	Not Rated	NSF/ANSI 61	4589K199	000000

Pipe Cement

		Each
Pipe Cement for Max. Pipe Size 6 (8-fl. oz. Can)	74605A31	000000

Thread Sealant

Applicator-Top Can

Sealants cannot be sold to Colorado, Connecticut, District of Columbia, Delaware, Illinois, Indiana, Massachusetts, Maryland, Maine, Michigan, New Hampshire, New Jersey, Northern Virginia, New York, Ohio, Pennsylvania, Rhode Island, or Utah due to local VOC (Volatile Organic Compounds) regulations.

Container
Size, fl. oz.	Type	Temp. Range, ° F		Each
8	Applicator-Top Can	-100 to 600	4586K9	000000

High-Pressure Iron and Steel Socket-Connect Pipe Fittings

Socket-connect fittings are easier to weld than butt-weld fittings because the fitting doesn’t need to align perfectly to the pipe. Slide pipe into the socket and weld for a strong, permanent connection. Fittings have heavy duty construction that stands up to high-pressure applications. They are for use in noncorrosive environments.

Union Straight Connectors

Socket Connect (Exploded View)

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

	Pressure Class	Body Shape	Material	Max. Pressure @ Temp.	Max. Steam Pressure @ Temp.		Each
Socket Connect



	1/8	3000	Hex	Steel	3,000 psi @ 72° F	Not Rated	45005K251	000000


	1/4	3000	Hex	Steel	3,000 psi @ 72° F	Not Rated	45005K252	00000
	3/8	3000	Hex	Steel	3,000 psi @ 72° F	Not Rated	45005K253	00000
	1/2	3000	Hex	Steel	3,000 psi @ 72° F	Not Rated	45005K254	00000
	3/4	3000	Hex	Steel	3,000 psi @ 72° F	Not Rated	45005K255	00000
	1	3000	Hex	Steel	3,000 psi @ 72° F	Not Rated	45005K256	00000
	1 1/4	3000	Hex	Steel	3,000 psi @ 72° F	Not Rated	45005K257	00000
	1 1/2	3000	Hex	Steel	3,000 psi @ 72° F	Not Rated	45005K258	00000
	2	3000	Hex	Steel	3,000 psi @ 72° F	Not Rated	45005K259	00000
	2 1/2	3000	Hex	Steel	3,000 psi @ 72° F	Not Rated	45005K261	000000
	3	3000	Hex	Steel	3,000 psi @ 72° F	Not Rated	45005K262	000000

Medium-Pressure Galvanized Iron and Steel Threaded Pipe Fittings

A galvanized finish gives these fittings fair corrosion resistance. They have the strength to handle medium-pressure applications.

Union Straight Connectors

Female

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

	Pressure Class	Body Shape	Material	Max. Pressure @ Temp.	Max. Steam Pressure @ Temp.	Certification		Each
NPT Female



	1/4	300	Hex	Galvanized Iron	600 psi @ 72° F	230 psi @ 550° F	FM Approved, UL Listed	2066N43	000000


	3/8	300	Hex	Galvanized Iron	600 psi @ 72° F	230 psi @ 550° F	FM Approved, UL Listed	2066N44	00000
	1/2	300	Hex	Galvanized Iron	600 psi @ 72° F	230 psi @ 550° F	FM Approved, UL Listed	2066N45	00000
	3/4	300	Hex	Galvanized Iron	600 psi @ 72° F	230 psi @ 550° F	FM Approved, UL Listed	2066N46	00000
	1	300	Hex	Galvanized Iron	600 psi @ 72° F	230 psi @ 550° F	FM Approved, UL Listed	2066N47	00000
	1 1/4	300	Hex	Galvanized Iron	600 psi @ 72° F	230 psi @ 550° F	FM Approved, UL Listed	2066N48	00000
	1 1/2	300	Hex	Galvanized Iron	600 psi @ 72° F	230 psi @ 550° F	FM Approved, UL Listed	2066N49	000000
	2	300	Hex	Galvanized Iron	600 psi @ 72° F	230 psi @ 550° F	FM Approved, UL Listed	2066N5	000000

High-Pressure Stainless Steel Socket-Connect Pipe Fittings

Forged for excellent strength, these heavy duty socket-connect fittings stand up to high-pressure applications. They are easier to weld than butt-weld fittings because the fitting doesn’t need to align perfectly to the pipe. Slide pipe into the socket and weld for a strong, permanent connection.

Union Straight Connectors

Female

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

304/304L Stainless Steel—Fittings hold up in humid, damp, and washdown environments but will corrode if exposed to salt water or chemicals.

316/316L Stainless Steel—Fittings are the most corrosion resistant. They stand up to wet environments, just like 304 stainless steel fittings, but unlike 304 stainless steel, they will not corrode from salt water, chlorine solutions, and chemicals.

							304/304L Stainless Steel		316/316L Stainless Steel
	Pipe Size	Dash Size	Pressure Class	Body Shape	Max. Pressure @ Temp.	Max. Steam Pressure @ Temp.		Each		Each
Socket Connect



		1/4	04	3000	Hex	2,900 psi @ 72° F	1,900 psi @ 350° F	44965K472	000000	45515K242	0000000


		3/8	06	3000	Hex	2,900 psi @ 72° F	1,900 psi @ 350° F	44965K473	00000	45515K243	000000
		1/2	08	3000	Hex	2,900 psi @ 72° F	1,900 psi @ 350° F	44965K474	00000	45515K244	000000
		3/4	12	3000	Hex	2,900 psi @ 72° F	1,900 psi @ 350° F	44965K475	000000	45515K245	000000
		1	16	3000	Hex	2,900 psi @ 72° F	1,900 psi @ 350° F	44965K476	000000	45515K246	000000
		1 1/2	24	3000	Hex	2,900 psi @ 72° F	1,900 psi @ 350° F	44965K478	000000	45515K248	000000
		2	32	3000	Hex	2,900 psi @ 72° F	1,900 psi @ 350° F	44965K479	000000	45515K249	000000

Medium-Pressure Brass and Bronze Threaded Pipe Fittings

Choose these fittings when you need better strength than our low-pressure brass and bronze pipe fittings. They offer good corrosion resistance.

Union Straight Connectors

Exploded View

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

	Pressure Class	Body Shape	Material	Max. Pressure @ Temp.		Each
NPT Female



	1/4	250	Hex	Brass	400 psi @ 72° F	9152K61	000000


	3/8	250	Hex	Brass	400 psi @ 72° F	9152K62	00000
	1/2	250	Hex	Brass	400 psi @ 72° F	9152K63	00000
	3/4	250	Hex	Brass	400 psi @ 72° F	9152K64	00000
	1	250	Hex	Brass	400 psi @ 72° F	9152K65	000000
	1 1/4	250	Hex	Brass	400 psi @ 72° F	9152K66	000000
	1 1/2	250	Hex	Brass	400 psi @ 72° F	9152K67	000000
	2	250	Hex	Brass	400 psi @ 72° F	9152K68	000000

High-Pressure Aluminum Threaded Pipe Fittings

Also known as Pressure Class 3000 fittings, these have the highest pressure rating of all the aluminum pipe fittings we offer. They are lightweight with good corrosion resistance.

Union Straight Connectors

Exploded View

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

	Pressure Class	Body Shape	Material	Max. Pressure @ Temp.	Mil. Spec.		Each
NPT Female



	1	3000	Hex	6061 Aluminum	1,500 psi @ 72° F	Fed. Spec. QQ-A-200/8	3867T541	0000000

Flame-Retardant PVDF Pipe Fittings for Harsh Chemicals

These fittings meet UL 94 V-0 for flame retardance, so they delay the spread of flames to valuable equipment. They are made of PVDF (polyvinylidene fluoride), which is comparable to Kynar, and has the chemical resistance to stand up to solvents and other harsh substances. Also known as Schedule 80 fittings, they have thick walls for heavy duty chemical processing applications. Fittings meet ASTM D3222 specifications and testing requirements for material quality.

Warning: Never use plastic pipe fittings, flanges, and pipe with compressed air or gas.

Union Straight Connectors

NPT Female

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

	Pipe Schedule	Material	Color	Max. Pressure @ Temp.	Flammability Rating		Each
NPT Female



	1/2	80	PVDF	Red	290 psi @ 72° F	UL 94 V-0	4415K363	0000000


	3/4	80	PVDF	Red	230 psi @ 72° F	UL 94 V-0	4415K364	000000
	1	80	PVDF	Red	210 psi @ 72° F	UL 94 V-0	4415K365	000000
	1 1/2	80	PVDF	Red	160 psi @ 72° F	UL 94 V-0	4415K366	000000
	2	80	PVDF	Red	140 psi @ 72° F	UL 94 V-0	4415K367	000000

Thread Sealant

Applicator-Top Can

Container
Size, fl. oz.	Type	Temp. Range, ° F		Each
8	Applicator-Top Can	-100 to 600	4586K9	000000