Unions for Phosphoric Acid

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38 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.

High-Purity Polypropylene Pipe Fittings for Corrosive Chemicals

The inside of these fittings won’t leach contaminants into your line or accumulate particles—they’re polished to an ultra-smooth 12 Ra finish, which also makes them easy to clean. Made of polypropylene, they resist organic solvents, acids, and alkalis better than CPVC fittings. These fittings meet NSF/ANSI 61 for use with drinking water, and they’re FDA compliant for direct contact with food. They also meet ASTM requirements for material and performance, and ISO requirements for dimensions.

Connect them to pipe with socket fusion welding for a strong, permanent bond. Use a socket fusion tool with a heater bushing (sold separately) that matches your pipe size.

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

Union Straight Connectors, Female Socket Fusion Connect

For Use With: Deionized Water, Drinking Water, Hydrochloric Acid, Phosphoric Acid, Salt Water, Solvents
Temperature Range: 32° to 200° F
Specifications Met: ASTM D2837, ASTM D4101, FDA Compliant 21 CFR 177.1520, FDA Compliant 21 CFR 178.3297, ISO 7279, NSF/ANSI 61
Pipe Nipples and Pipe: Use SDR 11 Polypropylene Plastic
Flanges: Use Polypropylene Plastic

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

EPDM Rubber O-Ring
Pipe Size	Socket Dp.	Material	Color	Max. Pressure		Each
1/2	19/32"	Polypropylene Plastic	Light Gray	150 psi @ 72° F	5381N038	0000000
3/4	5/8"	Polypropylene Plastic	Light Gray	150 psi @ 72° F	5381N039	000000
1	45/64"	Polypropylene Plastic	Light Gray	150 psi @ 72° F	5381N041	000000
1 1/2	15/16"	Polypropylene Plastic	Light Gray	150 psi @ 72° F	5381N042	000000
2	1 1/16"	Polypropylene Plastic	Light Gray	150 psi @ 72° F	5381N043	000000
Viton® Fluoroelastomer Rubber O-Ring
1/2	19/32"	Polypropylene Plastic	Light Gray	150 psi @ 72° F	5381N044	000000
3/4	5/8"	Polypropylene Plastic	Light Gray	150 psi @ 72° F	5381N045	000000
1	45/64"	Polypropylene Plastic	Light Gray	150 psi @ 72° F	5381N046	000000
1 1/2	15/16"	Polypropylene Plastic	Light Gray	150 psi @ 72° F	5381N047	000000
2	1 1/16"	Polypropylene Plastic	Light Gray	150 psi @ 72° F	5381N048	000000

Straight Ball Valves with Lockable Lever Handle, Female Socket Fusion Connect

For Use With: Deionized Water, Drinking Water, Hydrochloric Acid, Phosphoric Acid, Salt Water, Solvents
Temperature Range: 32° to 200° F
Specifications Met: ASTM D2837, ASTM D4101, FDA Compliant 21 CFR 177.1520, FDA Compliant 21 CFR 178.3297, ISO 7279, NSF/ANSI 61
Seal Material: See table
Seat Material: PTFE Plastic

Add a ball valve to control the flow in your line.

EPDM Rubber Seal
Pipe Size	Flow Coefficient (Cv)	Vacuum Rating, in. of Hg	Port Type	End-to-End Lg.	Color	Max. Pressure		Each
Polypropylene Plastic
1/2	12.5	29.92	Full	3 13/16"	Light Gray	150 psi @ 0° F	5381N074	0000000
3/4	28	29.92	Full	4 9/32"	Light Gray	150 psi @ 0° F	5381N075	000000
1	50.9	29.92	Full	4 23/32"	Light Gray	150 psi @ 0° F	5381N076	000000
1 1/2	150	29.92	Full	6 1/16"	Light Gray	150 psi @ 0° F	5381N077	000000
2	230	29.92	Full	6 13/16"	Light Gray	150 psi @ 0° F	5381N078	000000
Viton® Fluoroelastomer Rubber Seal
Polypropylene Plastic
1/2	12.5	29.92	Full	3 13/16"	Light Gray	150 psi @ 0° F	5381N079	000000
3/4	28	29.92	Full	4 9/32"	Light Gray	150 psi @ 0° F	5381N081	000000
1	50.9	29.92	Full	4 23/32"	Light Gray	150 psi @ 0° F	5381N082	000000
1 1/2	150	29.92	Full	6 1/16"	Light Gray	150 psi @ 0° F	5381N083	000000
2	230	29.92	Full	6 13/16"	Light Gray	150 psi @ 0° F	5381N084	000000

Socket Fusion Weld Tools

		Each
	5381N067	0000000

Heater Bushings

For Pipe Size		Each
1	5381N071	0000000
1 1/2	5381N072	000000
2	5381N073	000000

High-Purity PVDF Pipe Fittings for Corrosive Chemicals

Made of PVDF that’s finished to a 12 Ra smoothness, these fittings handle some of the harshest chemicals without leaching contaminants into your line. They won’t accumulate particles and are easy to clean, thanks to their smoothness. Comparable to Kynar, these fittings handle most organic solvents that would dissolve CPVC, and chlorine or nitric acid that would weaken polypropylene. You can use them at higher temperatures than CPVC and polypropylene. These fittings meet UL 94 V-0 and FM standards for flame retardance. They’re also FDA compliant for direct contact with food, and they meet ASTM requirements for dimensions and tolerances.

Connect them to pipe with socket fusion welding for a strong, permanent bond. Use a socket fusion tool with a heater bushing (sold separately) that matches your pipe size.

Union Straight Connectors, Female Socket Fusion Connect

For Use With: Chlorine, Deionized Water, Hydrochloric Acid, Nitric Acid, Oil, Phosphoric Acid, Salt Water, Solvents
Temperature Range: -40° to 270° F
Specifications Met: ASTM D3261, FDA Compliant 21 CFR 177.2510, FM 4910, UL 94 V-0
Pipe Nipples and Pipe: Use SDR 21 PVDF Plastic
Flanges: Use PVDF Plastic

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

Pipe Size	Socket Dp.	Material	Color	Max. Pressure		Each
1/2	37/64"	PVDF Plastic	White	230 psi @ 72° F	5306N44	0000000
3/4	5/8"	PVDF Plastic	White	230 psi @ 72° F	5306N45	000000
1	45/64"	PVDF Plastic	White	230 psi @ 72° F	5306N46	000000
1 1/2	59/64"	PVDF Plastic	White	230 psi @ 72° F	5306N47	000000
2	1 5/64"	PVDF Plastic	White	230 psi @ 72° F	5306N48	000000

Straight Ball Valves with Lockable Lever Handle, Female Socket Fusion Connect

For Use With: Chlorine, Deionized Water, Hydrochloric Acid, Nitric Acid, Oil, Phosphoric Acid, Salt Water, Solvents
Temperature Range: -40° to 270° F
Specifications Met: ASTM D3222, FDA Compliant 21 CFR 177.2510, FM 4910, UL 94 V-0
Seal Material: Viton® Fluoroelastomer Rubber
Seat Material: PTFE Plastic

Add a ball valve to control the flow in your line.

PVDF Plastic
Pipe Size	Flow Coefficient (Cv)	Vacuum Rating, in. of Hg	Port Type	End-to-End Lg.	Color	Max. Pressure		Each
1/2	12.5	29.92	Full	3 13/16"	White	230 psi @ 72° F	5306N67	0000000
3/4	28	29.92	Full	4 9/32"	White	230 psi @ 72° F	5306N68	000000
1	50.9	29.92	Full	4 23/32"	White	230 psi @ 72° F	5306N69	000000
1 1/2	150	29.92	Full	6 1/16"	White	230 psi @ 72° F	5306N71	00000000
2	230	29.92	Full	6 13/16"	White	230 psi @ 72° F	5306N72	00000000

Socket Fusion Weld Tools

		Each
	5381N067	0000000

Heater Bushings

For Pipe Size		Each
1/2	5381N068	0000000
3/4	5381N069	000000
1	5381N071	000000
1 1/2	5381N072	000000
2	5381N073	000000

Gravity-Flow Polypropylene Pipe Fittings for Corrosive Chemical Waste

For Use With: Deionized Water, Hydrochloric Acid, Oil, Phosphoric Acid, Salt Water, Solvents
Maximum Temperature: 220° F
Specifications Met: ASTM D4101, ASTM D635, ASTM F1412, UL 94 V-2
Compatible with Gravity-Flow Polypropylene Pipe for Corrosive Chemical Waste

Made of polypropylene, these gravity-flow fittings withstand organic solvents, such as acetone, that would dissolve CPVC pipe. They also stand up to highly corrosive acids, such as hydrochloric acid, and alkalies. All meet UL and ASTM standards for flame retardance and self-extinguishment in the case of fire. They also meet strict ASTM specifications and testing requirements for material quality and product dimensions. They’re compatible with Orion Blueline No-Hub and Orion Rionfuse chemical waste pipe and pipe fittings.

270° bend connectors are also known as P-traps. Union connectors separate into three pieces for easy access to your line.

Union 270° Bend Connectors, Male Grooved End

Pipe Size	Material	Color		Each
1 1/2	Polypropylene Plastic	Blue	5389N302	0000000
2	Polypropylene Plastic	Blue	5389N303	000000