2 1/2 Pipe Size Expansion Joints

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Sodium Carbonate (Soda Ash)

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17 Products

About Pipe Expansion Joints

Select the right expansion joint by measuring the size of your pipes and comparing types of joint movement.

Pipe Expansion Joints with Flanged Ends

Shown Installed on a Flanged Pipe

These joints reduce stress, vibration, and noise in piping systems by providing a point of flexibility to absorb movement. The flanged ends rotate for easy bolt hole alignment during installation. They mate with a same-size flat-surface Class 150 flange without the need for a gasket. Joints have a flexible body that is reinforced with nylon for added strength.

Position the expansion joints as close as possible to anchor points.

Neoprene


Expansion Joint	Limit Rod

Limit Rod Sets—Attach limit rod sets (sold separately) to the flanges to prevent overextension where anchoring is insufficient. To accommodate the thickness of the limit rod mounting plate, use bolts that are _7/8" longer than the bolts connecting the expansion joint to the pipe flange. Each set of limit rods requires eight bolts (not included).

Pipe Expansion Joints																				Limit Rod Sets
				Distance										Threaded Bolt Holes			Unthreaded Bolt Holes
Flange OD	Pipe Size	Lg.	No. of Bolt Holes	Compression	Expansion	Offset	Max. Pressure @ Temp.	Expansion Joint Type	Flange Material	Reinforcement Material	For Use With	Temp. Range, ° F	Max. Vacuum @ Temp.	Bolt Hole Thread Size		Each	For Bolt Dia.		Each		Pair
7"	2 1/2	6"	4	1/2"	3/8"	1/2"	220 psi @ 72° F	Single Bulb	Zinc-Plated Steel	Nylon	Nonabrasive Slurries, Water	-10 to 220	26 in. Hg @ 72° F	5/8"-11	9175K34	0000000	3/4"	9175K15	0000000	9175K84	0000000

EPDM


Expansion Joint	Limit Rod

Pipe Expansion Joints																	Limit Rod Sets
				Distance										Unthreaded Bolt Holes
Flange OD	Pipe Size	Lg.	No. of Bolt Holes	Compression	Expansion	Offset	Max. Pressure @ Temp.	Expansion Joint Type	Flange Material	Reinforcement Material	For Use With	Temp. Range, ° F	Max. Vacuum @ Temp.	For Bolt Dia.		Each		Pair
7"	2 1/2	6"	4	1/2"	3/8"	1/2"	220 psi @ 72° F	Single Bulb	Zinc-Plated Steel	Nylon	Alcohol, Water	-20 to 250	26 in. Hg @ 72° F	3/4"	9175K54	0000000	9175K84	0000000

High-Temperature All-Metal Pipe Expansion Joints with Flanged Ends

These all-metal expansion joints can handle higher temperatures than rubber expansion joints. They reduce stress, vibration, and noise in piping systems by providing a point of flexibility to absorb movement. Joints are made of 304 stainless steel for very good corrosion resistance. The flanged ends rotate for easy bolt hole alignment during installation. Flanges mate with a same-size flat-surface Class 150 flange with a gasket (sold separately).

304 Stainless Steel

Image of Product. Front orientation. Pipe Expansion Joints. High-Temperature All-Metal Pipe Expansion Joints with Flanged Ends.

Expansion Joint Liners—Liners (sold separately) slide into the expansion joint to provide a smooth interior for unrestricted flow.

Pipe Expansion Joints																Expansion Joint Liners
				Distance									Unthreaded Bolt Holes
Flange OD	Pipe Size	Lg.	No. of Bolt Holes	Compression	Expansion	Offset	Max. Pressure @ Temp.	Expansion Joint Type	Flange Material	For Use With	Temp. Range, ° F	Max. Vacuum @ Temp.	Bolt Hole Size		Each		Each
7"	2 1/2	6"	4	15/16"	5/16"	5/16"	150 psi @ 72° F	Bellow	Steel	Air, Natural Gas, Oil, Steam, Water	-20 to 800	29 in. Hg @ 72° F	3/4"	9413K62	0000000	9413K42	0000000

Pipe Expansion Joints with Sealing Flanged Ends for Metal Pipe

Shown Installed on a Flanged Pipe

Because the flanges are molded into the body for a wide sealing surface, these joints provide a tighter seal than other expansion joints. Each flange is supported by a zinc-plated steel plate. Flanges mate with a same-size flat-surface Class 150 flange without the need for a gasket. Joints reduce stress, vibration, and noise in metal piping systems by providing a point of flexibility to absorb movement. They have a flexible body that is reinforced with cord for added strength.

Mount these expansion joints as close as possible to anchor points.

Neoprene with Buna-N Liner


Expansion Joint	Limit Rod

Pipe Expansion Joints																	Limit Rod Sets
				Distance										Unthreaded Bolt Holes
Flange OD	Pipe Size	Lg.	No. of Bolt Holes	Compression	Expansion	Offset	Max. Pressure @ Temp.	Expansion Joint Type	Flange Material	Reinforcement Material	For Use With	Temp. Range, ° F	Max. Vacuum @ Temp.	Bolt Hole Size		Each		Pair
7"	2 1/2	6"	4	1 1/4"	5/8"	9/16"	210 psi @ 72° F	Single Bulb	Neoprene	Metal, Yarn	Coolant, Grease, Hydraulic Fluid, Water	-65 to 220	29 in. Hg @ 72° F	3/4"	4528K53	0000000	9175K84	0000000

Neoprene


Expansion Joint	Limit Rod

Pipe Expansion Joints																	Limit Rod Sets
				Distance										Unthreaded Bolt Holes
Flange OD	Pipe Size	Lg.	No. of Bolt Holes	Compression	Expansion	Offset	Max. Pressure @ Temp.	Expansion Joint Type	Flange Material	Reinforcement Material	For Use With	Temp. Range, ° F	Max. Vacuum @ Temp.	Bolt Hole Size		Each		Pair
7"	2 1/2	6"	4	1 1/4"	5/8"	9/16"	190 psi @ 72° F	Single Bulb	Neoprene	Metal, Polyester Plastic	Grain Alcohol, Nonabrasive Slurries, Water	-20 to 220	26 in. Hg @ 72° F	3/4"	4528K83	0000000	9175K84	0000000

Pipe Expansion Joints with Flanged Ends for High Vibration

Shown Installed on a Flanged Pipe

These expansion joints have a double-bulb design for extra movement and vibration absorption. The flanged ends rotate for easy bolt hole alignment during installation. They mate with a same-size flat-surface Class 150 flange without the need for a gasket. Joints have a flexible body that is reinforced with nylon for added strength.

Neoprene


Expansion Joint	Limit Rod

Pipe Expansion Joints																				Limit Rod Sets
				Distance										Threaded Bolt Holes			Unthreaded Bolt Holes
Flange OD	Pipe Size	Lg.	No. of Bolt Holes	Compression	Expansion	Offset	Max. Pressure @ Temp.	Expansion Joint Type	Flange Material	Reinforcement Material	For Use With	Temp. Range, ° F	Max. Vacuum @ Temp.	Bolt Hole Thread Size		Each	Bolt Hole Size		Each		Pair
7"	2 1/2	7"	4	2"	1 3/16"	1 3/4"	220 psi @ 72° F	Double Bulb	Zinc-Plated Steel	Nylon	Grain Alcohol, Nonabrasive Slurries, Water	-10 to 220	26 in. Hg @ 72° F	5/8"-11	6819K63	0000000	3/4"	6819K28	0000000	6819K74	000000

EPDM


Expansion Joint	Limit Rod

Pipe Expansion Joints																	Limit Rod Sets
				Distance										Unthreaded Bolt Holes
Flange OD	Pipe Size	Lg.	No. of Bolt Holes	Compression	Expansion	Offset	Max. Pressure @ Temp.	Expansion Joint Type	Flange Material	Reinforcement Material	For Use With	Temp. Range, ° F	Max. Vacuum @ Temp.	Bolt Hole Size		Each		Pair
7"	2 1/2	7"	4	2"	1 3/16"	1 3/4"	220 psi @ 72° F	Double Bulb	Zinc-Plated Steel	Nylon	Alcohol, Water	-20 to 250	26 in. Hg @ 72° F	3/4"	6819K83	0000000	6819K74	000000

Chemical-Resistant Pipe Expansion Joints with Flanged Ends

The PTFE body on these expansion joints has a super-smooth surface that stands up to corrosive chemicals. Joints have a triple-bulb design that provides excellent vibration absorption, reducing stress on your piping system. The flanges mate with a same-size flat-surface Class 150 flange without the need for a gasket. Limit rods are attached to the flanges to prevent overextension.

Ultra-Corrosion-Resistant-Coated PTFE

Image of Product. Front orientation. Pipe Expansion Joints. Chemical-Resistant Pipe Expansion Joints with Flanged Ends.

				Distance									Threaded Bolt Holes
Flange OD	Pipe Size	Lg.	No. of Bolt Holes	Compression	Expansion	Offset	Max. Pressure @ Temp.	Expansion Joint Type	Flange Material	For Use With	Temp. Range, ° F	Max. Vacuum @ Temp.	Bolt Hole Thread Size		Each
7"	2 1/2	3 3/16"	4	3/4"	3/4"	3/8"	130 psi @ 72° F	Triple Bulb	Iron	Coolant, Hydrochloric Acid, Water	0 to 400	29 in. Hg @ 72° F	5/8"-11	3501K83	000000000

Clamp-On Pipe Expansion Joints

Slip these joints over your pipe ends and tighten the band clamps for a secure hold. Joints have a triple-bulb design that provides excellent vibration absorption to reduce stress on your piping system. They also have reinforcing rings for extra support during pressure surges and in vacuum applications.

Neoprene

Image of Product. Front orientation. Pipe Expansion Joints. Clamp-On Pipe Expansion Joints.

Neoprene joints are more abrasion resistant than silicone rubber joints.

			Distance
For Pipe OD	Pipe Size	Lg.	Compression	Expansion	Offset	Max. Pressure @ Temp.	Expansion Joint Type	Reinforcement Material	Band Clamp Material	For Use With	Temp. Range, ° F	Max. Vacuum @ Temp.		Each
2 7/8"	2 1/2	7"	1"	1/2"	1 1/8"	150 psi @ 72° F	Triple Bulb	Nylon	300 Series Stainless Steel	Sewage Water, Calcium Chloride, Oil, Petroleum, Sludge, Water, Sodium Carbonate (Soda Ash)	-20 to 220	20 in. Hg @ 72° F	5428K16	0000000

Silicone Rubber

			Distance
For Pipe OD	Pipe Size	Lg.	Compression	Expansion	Offset	Max. Pressure @ Temp.	Expansion Joint Type	Reinforcement Material	Band Clamp Material	For Use With	Temp. Range, ° F	Max. Vacuum @ Temp.		Each
2 7/8"	2 1/2	7"	1"	1/2"	1 1/8"	150 psi @ 72° F	Triple Bulb	Fiberglass	300 Series Stainless Steel	Sewage Water, Calcium Chloride, Oil, Petroleum, Sludge, Water, Sodium Carbonate (Soda Ash)	-75 to 500	20 in. Hg @ 72° F	54345K22	0000000

Pipe Expansion Joints with Flanged Ends for Drinking Water

Shown Installed on a Flanged Pipe

The EPDM lining in these joints meets NSF/ANSI 61 standard for use with drinking water. To reduce stress, vibration, and noise in piping systems, they provide a point of flexibility to absorb movement. These joints have a flexible body reinforced with polyester plastic cord for added strength. A zinc-plated steel plate supports each flange. The flanges mate with the same-size flat-surface Class 150 flange without the need for a gasket.

Position the expansion joints as close as possible to anchor points.

EPDM with EPDM Liner


Expansion Joint	Limit Rod

Pipe Expansion Joints																		Limit Rod Sets
				Distance											Unthreaded Bolt Holes
Flange OD	Pipe Size	Lg.	No. of Bolt Holes	Compression	Expansion	Offset	Max. Pressure @ Temp.	Expansion Joint Type	Flange Material	Reinforcement Material	For Use With	Temp. Range, ° F	Max. Vacuum @ Temp.	Food Industry Std.	Bolt Hole Size		Each		Pair
7"	2 1/2	6"	4	1 3/8"	3/4"	5/8"	200 psi @ 72° F	Single Bulb	Zinc-Plated Steel	Polyester Plastic	Drinking Water	-20 to 250	26 in. Hg @ 72° F	NSF/ANSI 61	3/4"	5304N21	0000000	9175K84	0000000

Pipe Expansion Joints with Sealing Flanged Ends for Plastic Pipe

Shown Installed on a Flanged Pipe

These joints reduce stress, vibration, and noise in plastic piping systems by providing a point of flexibility to absorb movement. Joints provide a tighter seal than other expansion joints because the flanges are molded into the body for a wide sealing surface. Each flange is supported by a zinc-plated steel plate. Flanges mate with a same-size flat-surface Class 150 flange without the need for a gasket.

Position the expansion joints as close as possible to anchor points.

EPDM


Expansion Joint	Limit Rod

Pipe Expansion Joints																Limit Rod Sets
				Distance									Unthreaded Bolt Holes
Flange OD	Pipe Size	Lg.	No. of Bolt Holes	Compression	Expansion	Offset	Max. Pressure @ Temp.	Expansion Joint Type	Flange Material	For Use With	Temp. Range, ° F	Max. Vacuum @ Temp.	Bolt Hole Size		Each		Pair
7"	2 1/2	6"	4	1 1/4"	5/8"	9/16"	220 psi @ 72° F	Single Bulb	EPDM	Alcohol, Water	-20 to 250	24 in. Hg @ 72° F	3/4"	4528K43	0000000	9175K84	0000000