Clamp On Reducers | McMaster-Carr

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	Type Type

	Clamp
	Reducer
	Reducing Adapter

	For Pipe Size For Pipe Size

1 1/4
1 1/2
2
2 1/2
3
4
5
6
8
10
12

	Shape Shape


Straight	Tee

	Material Material

	For Use With For Use With

	For Pipe Material For Pipe Material

	System of Measurement System of Measurement

Inch

	Length Length

	Connection Style Connection Style	Show

	Clamp On

	Connection Style Connection Style	Hide

	Connection Type Connection Type


Pipe	Tube

	Gender Gender

Female

Male

	Specifications Met Specifications Met

ASTM

CISPI

CSA

	Maximum Pressure Maximum Pressure

	Pipe Size Pipe Size

1 1/2

2 1/2

	DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense Acquisition Regulations Supplement)

DFARS Specialty Metals
COTS-Exempt

	RoHS (Restriction of Hazardous Substances) RoHS (Restriction of Hazardous Substances)

RoHS Compliant

	Minimum Temperature Minimum Temperature

-49° to 0° F

Greater than 0° F

	Maximum Temperature Maximum Temperature

Less than 200° F

200° to 249° F

250° to 499° F

	Flexibility Flexibility

	Flexible

	REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) REACH (Registration, Evaluation, Authorization and Restriction of Chemicals)

REACH Compliant

	Maximum Vacuum Maximum Vacuum

15 in. of Hg @ 72° F

Not Rated

	Clamp Material Clamp Material

300 Series Stainless Steel

316 Stainless Steel

	Certification Certification

ICC-ES Listed

	Finish Finish

97 Products

How to Identify and Measure Fittings

Pipe size is an industry designation, not the actual size. View information about how to measure threaded and unthreaded pipe and pipe fittings.

The grooved ends on these fittings connect to pipe with a clamp to easily install piping systems. Since there’s no heat or threading required, they provide quick access to a pipe line for routine maintenance. Fittings are also known as Victaulic fittings. They are for use in noncorrosive applications.

Inline tees are also known as branch tees.

For technical drawings and 3-D models, click on a part number.

Straight Reducing Adapters

For Use With: Air, Water
Temperature Range: -30° to 250° F
Specifications Met: ASTM A536, FM Approved, UL Listed

Pipe Size
(A)	(B)	Max. Pressure	Color	Material		Each
Grooved End × NPT Male
2	1	750 psi @ 72° F	Orange	Enamel-Coated Iron	00000000	000000
2	1 1/2	750 psi @ 72° F	Orange	Enamel-Coated Iron	00000000	00000
2 1/2	1 1/2	750 psi @ 72° F	Orange	Enamel-Coated Iron	00000000	000000
2 1/2	2	750 psi @ 72° F	Orange	Enamel-Coated Iron	00000000	00000
3	2	750 psi @ 72° F	Orange	Enamel-Coated Iron	0000000	00000
4	2	750 psi @ 72° F	Orange	Enamel-Coated Iron	0000000	000000
4	3	750 psi @ 72° F	Orange	Enamel-Coated Iron	0000000	000000

Straight Reducers

For Use With: Air, Water
Temperature Range: -30° to 250° F
Specifications Met: UL Listed, FM Approved, ASTM A536

Pipe Size
(A)	(B)	Max. Pressure	Color	Material		Each
2 1/2	2	750 psi @ 72° F	Orange	Enamel-Coated Iron	00000000	000000
3	2	750 psi @ 72° F	Orange	Enamel-Coated Iron	00000000	00000
3	2 1/2	750 psi @ 72° F	Orange	Enamel-Coated Iron	00000000	00000
4	2	750 psi @ 72° F	Orange	Enamel-Coated Iron	00000000	00000
4	3	750 psi @ 72° F	Orange	Enamel-Coated Iron	00000000	000000
6	4	750 psi @ 72° F	Orange	Enamel-Coated Iron	00000000	000000

Inline Tee Reducing Adapters

For Use With: Air, Water
Temperature Range: -30° to 250° F
Specifications Met: UL Listed, FM Approved, ASTM A536

Pipe Size
(A)	(B)	Max. Pressure	Color	Material		Each
Grooved End × NPT Male
2	1	750 psi @ 72° F	Orange	Enamel-Coated Iron	00000000	0000000
2	1 1/2	750 psi @ 72° F	Orange	Enamel-Coated Iron	00000000	000000
2 1/2	1	750 psi @ 72° F	Orange	Enamel-Coated Iron	00000000	000000
2 1/2	1 1/2	750 psi @ 72° F	Orange	Enamel-Coated Iron	00000000	000000
2 1/2	2	750 psi @ 72° F	Orange	Enamel-Coated Iron	00000000	000000
3	1 1/2	750 psi @ 72° F	Orange	Enamel-Coated Iron	00000000	000000
3	2	750 psi @ 72° F	Orange	Enamel-Coated Iron	00000000	000000
4	2	750 psi @ 72° F	Orange	Enamel-Coated Iron	00000000	000000
6	2	750 psi @ 72° F	Orange	Enamel-Coated Iron	00000000	000000

Inline Tee Reducers

For Use With: Air, Water
Temperature Range: -30° to 250° F
Specifications Met: UL Listed, FM Approved, ASTM A536

Pipe Size
(A)	(B)	Max. Pressure	Color	Material		Each
2 1/2	2	750 psi @ 72° F	Orange	Enamel-Coated Iron	00000000	0000000
3	2	750 psi @ 72° F	Orange	Enamel-Coated Iron	00000000	000000
3	2 1/2	750 psi @ 72° F	Orange	Enamel-Coated Iron	00000000	000000
4	2	750 psi @ 72° F	Orange	Enamel-Coated Iron	00000000	000000
4	3	750 psi @ 72° F	Orange	Enamel-Coated Iron	00000000	000000
6	4	750 psi @ 72° F	Orange	Enamel-Coated Iron	00000000	000000

Drain, Waste, and Vent Iron Pipe Fittings

Use these fittings in gravity-flow applications both above and below ground. They are also known as no-hub pipe fittings and soil pipe fittings. To connect, place the end of the fitting against your pipe or another fitting and connect with a low-pressure clamp-on connector (sold separately). The clamp-on connector is also known as a no-hub coupling. Fittings are for use in noncorrosive environments.

Inline tee reducing adapters are also known as branch tees.

For technical drawings and 3-D models, click on a part number.

Straight Reducers

For Use With: Water
Specifications Met: ASTM A888, CISPI 301

Pipe Size
(A)	(B)		Each
2	1 1/2	0000000	000000
3	2	0000000	00000
4	2	0000000	00000
4	3	0000000	00000

Offset Inline Tee Reducing Adapters

For Use With: Water
Specifications Met: ASTM A888, CISPI 301

Pipe Size
(A)	(B)		Each
Compression × NPT Female
2	1 1/2	0000000	000000
3	2	0000000	00000
4	2	0000000	00000

Straight Connectors

For Use With: Water
Temperature Range: 0° to 180° F
Specifications Met: ASTM A666, ASTM C564
For Pipe Material: Aluminum, Iron, Steel, Stainless Steel, PVC Plastic

For Pipe Size	Lg.	Max. Pressure	Material	Sleeve Material		Each
1 1/2	3"	15 psi @ 72° F	304 Stainless Steel	Neoprene Rubber	0000000	000000
2	3"	15 psi @ 72° F	304 Stainless Steel	Neoprene Rubber	0000000	00000
3	3"	15 psi @ 72° F	304 Stainless Steel	Neoprene Rubber	0000000	00000
4	3"	15 psi @ 72° F	304 Stainless Steel	Neoprene Rubber	0000000	00000

Straight Adapters

For Use With: Water
Temperature Range: 0° to 180° F
Specifications Met: ASTM A666, ASTM C564
For Pipe Material: Aluminum, Iron, Steel, Stainless Steel, PVC Plastic
For Tube Material: Copper

For Pipe Size	For Copper Tube Size	Lg.	Max. Pressure	Material	Sleeve Material		Each
2	2	3"	15 psi @ 72° F	304 Stainless Steel	Neoprene Rubber	0000000	000000
3	3	3"	15 psi @ 72° F	304 Stainless Steel	Neoprene Rubber	0000000	00000
4	4	3"	15 psi @ 72° F	304 Stainless Steel	Neoprene Rubber	0000000	00000

Straight Reducers

For Use With: Water
Temperature Range: 0° to 180° F
Specifications Met: ASTM A666, ASTM C564
For Pipe Material: Aluminum, Iron, Steel, Stainless Steel, PVC Plastic

For Pipe Size
(A)	(B)	Lg.	Max. Pressure	Material	Sleeve Material		Each
2	1 1/2	3"	15 psi @ 72° F	304 Stainless Steel	Neoprene Rubber	0000000	000000
3	2	3"	15 psi @ 72° F	304 Stainless Steel	Neoprene Rubber	0000000	00000
4	3	3"	15 psi @ 72° F	304 Stainless Steel	Neoprene Rubber	0000000	00000

Clamps for Easy-Access CPVC Pipe Fittings for Chemicals

For Use With: Acetic Acid (10%), Calcium Chloride, Deionized Water, Hydrochloric Acid, Phosphoric Acid, Salt Water, Sodium Hydroxide, Sulfuric Acid (80%), Water
Temperature Range: 32° to 200° F
Specifications Met: ASTM D1784, ASTM F441
Pipe Nipples and Pipe: Use Schedule 80 CPVC Plastic

Use these clamps to connect easy-access CPVC pipe fittings and pipe. Clamps are enamel-coated iron for excellent strength and durability. They have a two-piece housing that can remain intact for installation. Clamps are also known as Victaulic clamps. They meet ASTM D1784 and ASTM F441 specifications and testing requirements for material quality.

For technical drawings and 3-D models, click on a part number.

Clamp Reducers

Clamp reducers allow you to connect CPVC grooved-end pipe fittings and pipe and transition from a larger pipe size to a smaller pipe size.

For Pipe Size	For Pipe OD	Material	Color	Gasket Material	Max. Pressure		Each
3 × 2	3 1/2" × 2 3/8"	Enamel-Coated Iron	Orange	EPDM Rubber	300 psi @ 72° F	0000000	000000
4 × 2	4 1/2" × 2 3/8"	Enamel-Coated Iron	Orange	EPDM Rubber	300 psi @ 72° F	0000000	00000
4 × 3	4 1/2" × 3 1/2"	Enamel-Coated Iron	Orange	EPDM Rubber	300 psi @ 72° F	0000000	00000

Easy-Access CPVC Pipe Fittings for Chemicals

For Use With: Acetic Acid (10%), Calcium Chloride, Deionized Water, Hydrochloric Acid, Phosphoric Acid, Salt Water, Sodium Hydroxide, Sulfuric Acid (80%), Water
Temperature Range: 32° to 200° F
Specifications Met: ASTM D1784
Pipe Nipples and Pipe: Use Schedule 80 CPVC Plastic

Also known as Victaulic fittings, these have grooved ends that connect to pipe with a clamp, so you can access your chemical process line for routine maintenance. Fittings are CPVC, which has excellent chemical resistance to withstand a variety of salt solutions, acids, and other harsh substances. They are comparable to Corzan. Fittings meet ASTM D1784 specifications and testing requirements for material quality.

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

For technical drawings and 3-D models, click on a part number.

Inline Tee Reducing Adapters, Male Grooved End × Female Socket Connect

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

Inline tees are also known as branch tees.

Pipe Size (A)	Pipe Size (B)	Socket Dp.	Material	Color	Max. Pressure		Each
2	1	1 3/16"	CPVC Plastic	Light Gray	300 psi @ 72° F	0000000	0000000
3	1	1 5/32"	CPVC Plastic	Light Gray	300 psi @ 72° F	0000000	000000
4	2	1 1/2"	CPVC Plastic	Light Gray	300 psi @ 72° F	0000000	000000

Pipe Cement (8 fl. oz. Can)

00000000

Each

000000

Clamp Connectors

Clamp connectors let you connect CPVC grooved-end pipe fittings and pipe.

For Pipe Size	For Pipe OD	Material	Color	Gasket Material	Max. Pressure	Specifications Met		Each
2	2 3/8"	Enamel-Coated Iron	Orange	EPDM Rubber	300 psi @ 72° F	ASTM D1784, ASTM F441	0000000	000000
3	3 1/2"	Enamel-Coated Iron	Orange	EPDM Rubber	300 psi @ 72° F	ASTM D1784, ASTM F441	0000000	00000
4	4 1/2"	Enamel-Coated Iron	Orange	EPDM Rubber	300 psi @ 72° F	ASTM D1784, ASTM F441	0000000	00000

Clamp Adapters

Clamp adapters let you connect CPVC grooved-end pipe fittings and pipe to metal grooved-end pipe fittings and pipe.

For Pipe Size	For Pipe OD	Material	Color	Gasket Material	Max. Pressure	Specifications Met		Each
3	3 1/2"	Enamel-Coated Iron	Orange	EPDM Rubber	300 psi @ 72° F	ASTM D1784, ASTM F441	0000000	000000
4	4 1/2"	Enamel-Coated Iron	Orange	EPDM Rubber	300 psi @ 72° F	ASTM D1784, ASTM F441	0000000	00000

Clamp Reducers

Clamp reducers allow you to connect CPVC grooved-end pipe fittings and pipe and transition from a larger pipe size to a smaller pipe size.

For Pipe Size	For Pipe OD	Material	Color	Gasket Material	Max. Pressure	Specifications Met		Each
3 × 2	3 1/2" × 2 3/8"	Enamel-Coated Iron	Orange	EPDM Rubber	300 psi @ 72° F	ASTM D1784, ASTM F441	0000000	000000
4 × 2	4 1/2" × 2 3/8"	Enamel-Coated Iron	Orange	EPDM Rubber	300 psi @ 72° F	ASTM D1784, ASTM F441	0000000	00000
4 × 3	4 1/2" × 3 1/2"	Enamel-Coated Iron	Orange	EPDM Rubber	300 psi @ 72° F	ASTM D1784, ASTM F441	0000000	00000

Low-Pressure Clamp-On Connectors for Drain, Waste, and Vent

Tighten the bands on these connectors to form a strong seal on pipe or fittings.

For technical drawings and 3-D models, click on a part number.

Straight Reducers

For Use With: Air, Water
Temperature Range: -40° to 120° F
Specifications Met: ASTM C1173, ASTM D5926, CSA Certified
For Pipe Material: Stainless Steel, Iron, Steel, Aluminum, PVC Plastic, CPVC Plastic

For Pipe Size
(A)	(B)	Lg.	Max. Pressure	Max. Vacuum	Material	Clamp Material	Flexibility		Each
Pipe End × Pipe End
1 1/2	1 1/4	3 1/2"	4 psi @ 72° F	Not Rated	PVC Plastic	300 Series Stainless Steel	Flexible	0000000	00000
2	1 1/4	3 1/2"	4 psi @ 72° F	Not Rated	PVC Plastic	300 Series Stainless Steel	Flexible	0000000	0000
2	1 1/2	3 7/16"	4 psi @ 72° F	Not Rated	PVC Plastic	300 Series Stainless Steel	Flexible	0000000	0000
2 1/2	1 1/4	3 1/2"	4 psi @ 72° F	Not Rated	PVC Plastic	300 Series Stainless Steel	Flexible	00000000	00000
2 1/2	2	3 1/2"	4 psi @ 72° F	Not Rated	PVC Plastic	300 Series Stainless Steel	Flexible	00000000	00000
3	1 1/2	3 7/8"	4 psi @ 72° F	Not Rated	PVC Plastic	300 Series Stainless Steel	Flexible	0000000	00000
3	2	4"	4 psi @ 72° F	Not Rated	PVC Plastic	300 Series Stainless Steel	Flexible	0000000	0000
3	2	4"	4 psi @ 72° F	Not Rated	PVC Plastic	316 Stainless Steel	Flexible	0000000	00000
3	2 1/2	4 3/16"	4 psi @ 72° F	Not Rated	PVC Plastic	300 Series Stainless Steel	Flexible	00000000	00000
4	1 1/2	4"	4 psi @ 72° F	Not Rated	PVC Plastic	300 Series Stainless Steel	Flexible	0000000	00000
4	1 1/2	4"	4 psi @ 72° F	Not Rated	PVC Plastic	316 Stainless Steel	Flexible	0000000	00000
4	2	3 7/8"	4 psi @ 72° F	Not Rated	PVC Plastic	300 Series Stainless Steel	Flexible	0000000	00000
4	2	3 7/8"	4 psi @ 72° F	Not Rated	PVC Plastic	316 Stainless Steel	Flexible	0000000	00000
4	3	4"	4 psi @ 72° F	Not Rated	PVC Plastic	300 Series Stainless Steel	Flexible	0000000	00000
4	3	4"	4 psi @ 72° F	Not Rated	PVC Plastic	316 Stainless Steel	Flexible	0000000	00000
5	3	3 7/8"	4 psi @ 72° F	Not Rated	PVC Plastic	300 Series Stainless Steel	Flexible	0000000	00000
5	4	4"	4 psi @ 72° F	Not Rated	PVC Plastic	300 Series Stainless Steel	Flexible	0000000	00000
6	3	5 3/4"	4 psi @ 72° F	Not Rated	PVC Plastic	300 Series Stainless Steel	Flexible	0000000	00000
6	4	5 3/4"	4 psi @ 72° F	Not Rated	PVC Plastic	300 Series Stainless Steel	Flexible	0000000	00000
6	4	5 3/4"	4 psi @ 72° F	Not Rated	PVC Plastic	316 Stainless Steel	Flexible	0000000	00000
6	5	5 3/4"	4 psi @ 72° F	Not Rated	PVC Plastic	300 Series Stainless Steel	Flexible	0000000	00000
8	4	6"	4 psi @ 72° F	Not Rated	PVC Plastic	300 Series Stainless Steel	Flexible	0000000	00000
8	6	6"	4 psi @ 72° F	Not Rated	PVC Plastic	300 Series Stainless Steel	Flexible	0000000	00000
10	8	6"	4 psi @ 72° F	Not Rated	PVC Plastic	300 Series Stainless Steel	Flexible	0000000	00000
10	8	6"	4 psi @ 72° F	Not Rated	PVC Plastic	316 Stainless Steel	Flexible	0000000	00000
12	10	6 3/8"	4 psi @ 72° F	Not Rated	PVC Plastic	300 Series Stainless Steel	Flexible	0000000	00000

Low-Pressure Clamp-On Connectors for Water

Also known as no-hub couplings, these have a one-piece sleeve with a stop in the center, so you know your pipe is always aligned correctly. Tighten the bands to form a strong seal on rigid pipe of the same or different materials. Connectors are 304 stainless steel for good corrosion resistance.

Note: Copper tube size is the accepted designation of the copper tubing industry, not the actual OD.

Straight Reducers

For Use With: Water
Temperature Range: 0° to 180° F
Specifications Met: ASTM A666, ASTM C564
For Pipe Material: Stainless Steel, Iron, Steel, Aluminum, PVC Plastic

For Pipe Size
(A)	(B)	Lg.	Max. Pressure	Material	Sleeve Material		Each
Pipe × Pipe
2	1 1/2	3"	15 psi @ 72° F	304 Stainless Steel	Neoprene Rubber	0000000	000000
3	2	3"	15 psi @ 72° F	304 Stainless Steel	Neoprene Rubber	0000000	00000
4	3	3"	15 psi @ 72° F	304 Stainless Steel	Neoprene Rubber	0000000	00000

Vacuum Fittings for Steel Tubing

For Use With: Air, Glass, Plastic Pellets, Resins, Wood Chips
Temperature Range: -10° to 180° F
Tubing: Galvanized Steel: Use with steel, galvanized steel
Steel: Use with steel

Use these fittings to create an air vacuum system without the hassle of brazing and welding. Insert two fittings into a clamp (sold separately) and tighten to form a secure seal.

Galvanized steel fittings have fair corrosion resistance. Fittings without a finish should only be used in noncorrosive environments.

For technical drawings and 3-D models, click on a part number.

Straight Reducers, Tube

				Galvanized Steel		Steel
For Tube OD (A)	For Tube OD (B)	Max. Pressure	Max. Vacuum		Each		Each
2 1/2"	2 1/8"	15 psi @ 72° F	15 in. of Hg @ 72° F	0000000	000000	0000000	000000
3"	2 1/8"	15 psi @ 72° F	15 in. of Hg @ 72° F	0000000	00000	0000000	00000
3 1/2"	2 1/8"	15 psi @ 72° F	15 in. of Hg @ 72° F	0000000	00000	0000000	00000
3 1/2"	2 1/2"	15 psi @ 72° F	15 in. of Hg @ 72° F	00000000	00000	0000000	00000
4"	2 1/8"	15 psi @ 72° F	15 in. of Hg @ 72° F	00000000	00000	0000000	00000
5"	2 1/8"	15 psi @ 72° F	15 in. of Hg @ 72° F	00000000	000000	0000000	000000
6"	2 1/8"	15 psi @ 72° F	15 in. of Hg @ 72° F	00000000	000000	0000000	000000

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How to Identify and Measure Fittings

Grooved-End Iron Pipe Fittings

Drain, Waste, and Vent Iron Pipe Fittings

Clamps for Easy-Access CPVC Pipe Fittings for Chemicals

Easy-Access CPVC Pipe Fittings for Chemicals

Low-Pressure Clamp-On Connectors for Drain, Waste, and Vent

Low-Pressure Clamp-On Connectors for Water

Vacuum Fittings for Steel Tubing