Butt-Weld Tube Reducers | McMaster-Carr

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	Connection Style Connection Style	Show

	Butt Weld

	Connection Style Connection Style	Hide

	Type Type


Reducer	Adapter

	Material Material

Stainless Steel

Steel

	System of Measurement System of Measurement

Inch

	For Tube OD For Tube OD

	Shape Shape


Straight	Tee

	For Tube Material For Tube Material

304/304L Stainless Steel

316/316L Stainless Steel

	Wall Thickness Wall Thickness

	Connection Type Connection Type


Tube	Pipe

	For Use With For Use With

	For Tube Fabrication For Tube Fabrication

Welded

Seamless

	Pipe Size Pipe Size

1/2
3/4
1
1 1/4
1 1/2
2
2 1/2
3
4
6
8

	Length Length

	Appearance Appearance

Polished

Dull

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

DFARS Specialty Metals
COTS-Exempt

	Schedule Schedule


10	40

	Environment Environment

Food and Beverage

Sanitary

	For Pipe Material For Pipe Material

Stainless Steel

Steel

	Sterilize With Sterilize With

Steam (Autoclaving)

Chemicals

	Maximum Vacuum Maximum Vacuum

10^-6 torr @
72° F

Not Rated

	For Tube Specifications Met For Tube Specifications Met

ASTM A269

ASTM A270

ASTM A213

	Maximum Pressure Maximum Pressure

	Specifications Met Specifications Met

3-A Sanitary Certified

ASME

ASTM

MSS

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232 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.

For Use With: See table
Max. Temperature: 250° F, except hose fittings are unrated.
Tubing:
304 Stainless Steel: Use with 304/304L stainless steel that meets ASTM A213, ASTM A269, or ASTM A270, except DIN EN 10357 fittings with only ASTM A269 or ASTM A270
316 Stainless Steel: Use with 316/316L stainless steel that meets ASTM A213, ASTM A269, or ASTM A270, except DIN EN 10357 fittings with only ASTM A269 or ASTM A270
Specifications Met: See table

Weld these fittings to tubing for a permanent, flush connection that permits smooth flow through a line.

304 stainless steel fittings have very good corrosion resistance. 316 stainless steel fittings have excellent corrosion resistance.

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

Straight Reducers, Tube

304/304L Stainless Steel
For Tube OD (A)	For Tube OD (B)	Max. Pressure	Max. Vacuum	Wall Thick.	For Use With	Specifications Met		Each
Polished
1 1/2"	1"	600 psi @ 72° F	10 ^-6 torr @ 72° F	0.065"	Dairy, Food	3-A Certified 63-04	00000000	000000
2"	1 1/2"	550 psi @ 72° F	10 ^-6 torr @ 72° F	0.065"	Dairy, Food	3-A Certified 63-04	00000000	00000
2 1/2"	1 1/2"	450 psi @ 72° F	10 ^-6 torr @ 72° F	0.065"	Dairy, Food	3-A Certified 63-04	00000000	00000
2 1/2"	2"	450 psi @ 72° F	10 ^-6 torr @ 72° F	0.065"	Dairy, Food	3-A Certified 63-04	00000000	00000
3"	1 1/2"	350 psi @ 72° F	10 ^-6 torr @ 72° F	0.065"	Dairy, Food	3-A Certified 63-04	00000000	00000
3"	2"	350 psi @ 72° F	10 ^-6 torr @ 72° F	0.065"	Dairy, Food	3-A Certified 63-04	00000000	00000
3"	2 1/2"	350 psi @ 72° F	10 ^-6 torr @ 72° F	0.065"	Dairy, Food	3-A Certified 63-04	00000000	00000
4"	3"	250 psi @ 72° F	10 ^-6 torr @ 72° F	0.083"	Dairy, Food	3-A Certified 63-04	00000000	00000
6"	4"	125 psi @ 72° F	10 ^-6 torr @ 72° F	0.109"	Dairy, Food	3-A Certified 63-04	00000000	000000
Dull
1 1/2"	1"	600 psi @ 72° F	10 ^-6 torr @ 72° F	0.065"	Air, Food, Water	__	00000000	00000
2"	1"	550 psi @ 72° F	10 ^-6 torr @ 72° F	0.065"	Air, Food, Water	__	00000000	00000
2"	1 1/2"	550 psi @ 72° F	10 ^-6 torr @ 72° F	0.065"	Air, Food, Water	__	00000000	00000
2 1/2"	1 1/2"	450 psi @ 72° F	10 ^-6 torr @ 72° F	0.065"	Air, Food, Water	__	00000000	00000
2 1/2"	2"	450 psi @ 72° F	10 ^-6 torr @ 72° F	0.065"	Air, Food, Water	__	00000000	00000
3"	1 1/2"	350 psi @ 72° F	10 ^-6 torr @ 72° F	0.065"	Air, Food, Water	__	00000000	00000
3"	2"	350 psi @ 72° F	10 ^-6 torr @ 72° F	0.065"	Air, Food, Water	__	00000000	00000
3"	2 1/2"	350 psi @ 72° F	10 ^-6 torr @ 72° F	0.065"	Air, Food, Water	__	00000000	00000
4"	3"	250 psi @ 72° F	10 ^-6 torr @ 72° F	0.065"	Air, Food, Water	__	00000000	00000
6"	4"	120 psi @ 72° F	10 ^-6 torr @ 72° F	0.083"	Air, Food, Water	__	00000000	000000
316/316L Stainless Steel
Polished
1"	1/2"	600 psi @ 72° F	10 ^-6 torr @ 72° F	0.065"	Dairy, Food	3-A Certified 63-04	00000000	00000
1"	3/4"	600 psi @ 72° F	10 ^-6 torr @ 72° F	0.065"	Dairy, Food	3-A Certified 63-04	00000000	00000
1 1/2"	1"	600 psi @ 72° F	10 ^-6 torr @ 72° F	0.065"	Dairy, Food	3-A Certified 63-04	0000000	00000
2"	1 1/2"	550 psi @ 72° F	10 ^-6 torr @ 72° F	0.065"	Dairy, Food	3-A Certified 63-04	0000000	00000
2 1/2"	1 1/2"	450 psi @ 72° F	10 ^-6 torr @ 72° F	0.065"	Dairy, Food	3-A Certified 63-04	0000000	00000
2 1/2"	2"	450 psi @ 72° F	10 ^-6 torr @ 72° F	0.065"	Dairy, Food	3-A Certified 63-04	0000000	00000
3"	1 1/2"	350 psi @ 72° F	10 ^-6 torr @ 72° F	0.065"	Dairy, Food	3-A Certified 63-04	0000000	00000
3"	2"	350 psi @ 72° F	10 ^-6 torr @ 72° F	0.065"	Dairy, Food	3-A Certified 63-04	0000000	00000
3"	2 1/2"	350 psi @ 72° F	10 ^-6 torr @ 72° F	0.065"	Dairy, Food	3-A Certified 63-04	0000000	00000
4"	3"	250 psi @ 72° F	10 ^-6 torr @ 72° F	0.083"	Dairy, Food	3-A Certified 63-04	0000000	00000
6"	4"	120 psi @ 72° F	10 ^-6 torr @ 72° F	0.109"	Dairy, Food	3-A Certified 63-04	0000000	000000
Dull
1"	1/2"	600 psi @ 72° F	10 ^-6 torr @ 72° F	0.065"	Air, Food, Water	__	00000000	00000
1"	3/4"	600 psi @ 72° F	10 ^-6 torr @ 72° F	0.065"	Air, Food, Water	__	00000000	00000
1 1/2"	1"	600 psi @ 72° F	10 ^-6 torr @ 72° F	0.065"	Air, Food, Water	__	00000000	00000
2"	1"	550 psi @ 72° F	10 ^-6 torr @ 72° F	0.065"	Air, Food, Water	__	00000000	00000
2"	1 1/2"	550 psi @ 72° F	10 ^-6 torr @ 72° F	0.065"	Air, Food, Water	__	00000000	00000
2 1/2"	1 1/2"	450 psi @ 72° F	10 ^-6 torr @ 72° F	0.065"	Air, Food, Water	__	00000000	00000
2 1/2"	2"	450 psi @ 72° F	10 ^-6 torr @ 72° F	0.065"	Air, Food, Water	__	00000000	00000
3"	1 1/2"	350 psi @ 72° F	10 ^-6 torr @ 72° F	0.065"	Air, Food, Water	__	00000000	00000
3"	2"	350 psi @ 72° F	10 ^-6 torr @ 72° F	0.065"	Air, Food, Water	__	00000000	00000
3"	2 1/2"	350 psi @ 72° F	10 ^-6 torr @ 72° F	0.065"	Air, Food, Water	__	00000000	00000
4"	3"	250 psi @ 72° F	10 ^-6 torr @ 72° F	0.083"	Air, Food, Water	__	00000000	00000
6"	4"	120 psi @ 72° F	10 ^-6 torr @ 72° F	0.109"	Air, Food, Water	__	00000000	000000

Offset Straight Reducers, Tube

Offset straight reducers are also known as eccentric reducers. They have offset centers so your line can drain.

304/304L Stainless Steel
For Tube OD (A)	For Tube OD (B)	Max. Pressure	Max. Vacuum	Wall Thick.	For Use With	Specifications Met		Each
Polished
1 1/2"	1"	600 psi @ 72° F	10 ^-6 torr @ 72° F	0.065"	Dairy, Food	3-A Certified 63-04	00000000	000000
2"	1 1/2"	550 psi @ 72° F	10 ^-6 torr @ 72° F	0.065"	Dairy, Food	3-A Certified 63-04	00000000	00000
2 1/2"	1 1/2"	450 psi @ 72° F	10 ^-6 torr @ 72° F	0.065"	Dairy, Food	3-A Certified 63-04	00000000	00000
2 1/2"	2"	450 psi @ 72° F	10 ^-6 torr @ 72° F	0.065"	Dairy, Food	3-A Certified 63-04	00000000	00000
3"	1 1/2"	350 psi @ 72° F	10 ^-6 torr @ 72° F	0.065"	Dairy, Food	3-A Certified 63-04	00000000	000000
3"	2"	350 psi @ 72° F	10 ^-6 torr @ 72° F	0.065"	Dairy, Food	3-A Certified 63-04	00000000	00000
3"	2 1/2"	350 psi @ 72° F	10 ^-6 torr @ 72° F	0.065"	Dairy, Food	3-A Certified 63-04	00000000	00000
4"	3"	250 psi @ 72° F	10 ^-6 torr @ 72° F	0.083"	Dairy, Food	3-A Certified 63-04	00000000	00000
6"	4"	120 psi @ 72° F	10 ^-6 torr @ 72° F	0.109"	Dairy, Food	3-A Certified 63-04	00000000	000000
Dull
1 1/2"	1"	600 psi @ 72° F	10 ^-6 torr @ 72° F	0.065"	Air, Food, Water	__	00000000	00000
2"	1"	550 psi @ 72° F	10 ^-6 torr @ 72° F	0.065"	Air, Food, Water	__	00000000	00000
2"	1 1/2"	550 psi @ 72° F	10 ^-6 torr @ 72° F	0.065"	Air, Food, Water	__	00000000	00000
2 1/2"	1 1/2"	450 psi @ 72° F	10 ^-6 torr @ 72° F	0.065"	Air, Food, Water	__	00000000	00000
2 1/2"	2"	450 psi @ 72° F	10 ^-6 torr @ 72° F	0.065"	Air, Food, Water	__	00000000	00000
3"	1 1/2"	350 psi @ 72° F	10 ^-6 torr @ 72° F	0.065"	Air, Food, Water	__	00000000	00000
3"	2"	350 psi @ 72° F	10 ^-6 torr @ 72° F	0.065"	Air, Food, Water	__	00000000	00000
3"	2 1/2"	350 psi @ 72° F	10 ^-6 torr @ 72° F	0.065"	Air, Food, Water	__	00000000	00000
4"	3"	250 psi @ 72° F	10 ^-6 torr @ 72° F	0.065"	Air, Food, Water	__	00000000	00000
6"	4"	120 psi @ 72° F	10 ^-6 torr @ 72° F	0.083"	Air, Food, Water	__	00000000	000000
316/316L Stainless Steel
Polished
1"	1/2"	600 psi @ 72° F	10 ^-6 torr @ 72° F	0.065"	Dairy, Food	3-A Certified 63-04	00000000	00000
1"	3/4"	600 psi @ 72° F	10 ^-6 torr @ 72° F	0.065"	Dairy, Food	3-A Certified 63-04	00000000	00000
1 1/2"	1"	600 psi @ 72° F	10 ^-6 torr @ 72° F	0.065"	Dairy, Food	3-A Certified 63-04	0000000	00000
2"	1 1/2"	550 psi @ 72° F	10 ^-6 torr @ 72° F	0.065"	Dairy, Food	3-A Certified 63-04	0000000	00000
2 1/2"	1 1/2"	450 psi @ 72° F	10 ^-6 torr @ 72° F	0.065"	Dairy, Food	3-A Certified 63-04	0000000	00000
2 1/2"	2"	450 psi @ 72° F	10 ^-6 torr @ 72° F	0.065"	Dairy, Food	3-A Certified 63-04	0000000	00000
3"	1 1/2"	350 psi @ 72° F	10 ^-6 torr @ 72° F	0.065"	Dairy, Food	3-A Certified 63-04	0000000	000000
3"	2"	350 psi @ 72° F	10 ^-6 torr @ 72° F	0.065"	Dairy, Food	3-A Certified 63-04	0000000	00000
3"	2 1/2"	350 psi @ 72° F	10 ^-6 torr @ 72° F	0.065"	Dairy, Food	3-A Certified 63-04	0000000	00000
4"	3"	250 psi @ 72° F	10 ^-6 torr @ 72° F	0.083"	Dairy, Food	3-A Certified 63-04	0000000	000000
6"	4"	120 psi @ 72° F	10 ^-6 torr @ 72° F	0.109"	Dairy, Food	3-A Certified 63-04	0000000	000000
Dull
1"	1/2"	600 psi @ 72° F	10 ^-6 torr @ 72° F	0.065"	Air, Food, Water	__	00000000	00000
1"	3/4"	600 psi @ 72° F	10 ^-6 torr @ 72° F	0.065"	Air, Food, Water	__	00000000	00000
1 1/2"	1"	600 psi @ 72° F	10 ^-6 torr @ 72° F	0.065"	Air, Food, Water	__	00000000	00000
2"	1"	550 psi @ 72° F	10 ^-6 torr @ 72° F	0.065"	Air, Food, Water	__	00000000	00000
2"	1 1/2"	550 psi @ 72° F	10 ^-6 torr @ 72° F	0.065"	Air, Food, Water	__	00000000	00000
2 1/2"	1 1/2"	450 psi @ 72° F	10 ^-6 torr @ 72° F	0.065"	Air, Food, Water	__	00000000	00000
2 1/2"	2"	450 psi @ 72° F	10 ^-6 torr @ 72° F	0.065"	Air, Food, Water	__	00000000	00000
3"	1 1/2"	350 psi @ 72° F	10 ^-6 torr @ 72° F	0.065"	Air, Food, Water	__	00000000	000000
3"	2"	350 psi @ 72° F	10 ^-6 torr @ 72° F	0.065"	Air, Food, Water	__	00000000	00000
3"	2 1/2"	350 psi @ 72° F	10 ^-6 torr @ 72° F	0.065"	Air, Food, Water	__	00000000	00000
4"	3"	250 psi @ 72° F	10 ^-6 torr @ 72° F	0.083"	Air, Food, Water	__	00000000	00000
6"	4"	120 psi @ 72° F	10 ^-6 torr @ 72° F	0.109"	Air, Food, Water	__	00000000	000000

Inline Tee Reducers, Tube

Inline tees are also known as branch tees.

304/304L Stainless Steel
For Tube OD (A)	For Tube OD (B)	Max. Pressure	Max. Vacuum	Wall Thick.	For Use With	Specifications Met		Each
Polished
1 1/2"	1"	600 psi @ 72° F	10 ^-6 torr @ 72° F	0.065"	Dairy, Food	3-A Certified 63-04	00000000	000000
2"	1"	550 psi @ 72° F	10 ^-6 torr @ 72° F	0.065"	Dairy, Food	3-A Certified 63-04	00000000	00000
2"	1 1/2"	550 psi @ 72° F	10 ^-6 torr @ 72° F	0.065"	Dairy, Food	3-A Certified 63-04	00000000	00000
3"	2"	350 psi @ 72° F	10 ^-6 torr @ 72° F	0.065"	Dairy, Food	3-A Certified 63-04	00000000	00000
Dull
1 1/2"	1"	600 psi @ 72° F	10 ^-6 torr @ 72° F	0.065"	Air, Food, Water	__	00000000	00000
2"	1"	550 psi @ 72° F	10 ^-6 torr @ 72° F	0.065"	Air, Food, Water	__	00000000	00000
2"	1 1/2"	550 psi @ 72° F	10 ^-6 torr @ 72° F	0.065"	Air, Food, Water	__	00000000	00000
3"	2"	350 psi @ 72° F	10 ^-6 torr @ 72° F	0.065"	Air, Food, Water	__	00000000	00000
316/316L Stainless Steel
Polished
1 1/2"	1"	600 psi @ 72° F	10 ^-6 torr @ 72° F	0.065"	Dairy, Food	3-A Certified 63-04	0000000	00000
2"	1"	550 psi @ 72° F	10 ^-6 torr @ 72° F	0.065"	Dairy, Food	3-A Certified 63-04	0000000	00000
2"	1 1/2"	550 psi @ 72° F	10 ^-6 torr @ 72° F	0.065"	Dairy, Food	3-A Certified 63-04	0000000	00000
3"	2"	350 psi @ 72° F	10 ^-6 torr @ 72° F	0.065"	Dairy, Food	3-A Certified 63-04	0000000	00000
Dull
1 1/2"	1"	600 psi @ 72° F	10 ^-6 torr @ 72° F	0.065"	Air, Food, Water	__	00000000	00000
2"	1"	550 psi @ 72° F	10 ^-6 torr @ 72° F	0.065"	Air, Food, Water	__	00000000	00000
2"	1 1/2"	550 psi @ 72° F	10 ^-6 torr @ 72° F	0.065"	Air, Food, Water	__	00000000	00000
3"	2"	350 psi @ 72° F	10 ^-6 torr @ 72° F	0.065"	Air, Food, Water	__	00000000	00000

High-Polish Metal Quick-Clamp Sanitary Tube Fittings

Temperature Range: See Gaskets or O-Rings

The smooth finish inside these fittings makes it easy to remove product residue. Also known as aseptic and tri-clamp fittings, they connect with a gasket or O-ring, a clamp, and another quick-clamp fitting for a fast and easy way to access your line. The pressure rating of the fitting will vary depending on the clamp you choose, and the temperature rating will vary based on the gasket or O-ring material you choose.

Inch fittings connect to another same-sized fitting and squeeze the gasket in between for a tight seal.

304 stainless steel fittings have very good corrosion resistance. 3-A certified fittings comply with sanitary standards.

Note: To complete a connection, you’ll need two quick-clamp fittings, a clamp, and a gasket or O-ring (all sold separately).

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

Straight Adapters, Tube × Butt-Weld Tube

For Use With: Air, Beverage, Dairy, Food, Water
Tubing:
Inch: Use with welded 304/304L or 316/316L stainless steel that meets ASTM A269 or ASTM 270
Metric: Use with welded 304/304L or 316/316L stainless steel
Metric with Flat Flange Surface and O-Ring Flange Surface: Use with welded 316/316L stainless steel taht meets DIN 11866
Specifications Met: See table

Fittings with butt-weld end are also known as ferrules; they weld to tubing for a permanent, flush connection.

For Tube OD						304 Stainless Steel
Quick Clamp	Butt Weld	Flange OD	Lg.	Wall Thick.	Specifications Met		Each
Inch
1"	1/2"	1.984"	1/2"	0.065"	3-A Certified 63-04	00000000	000000
1"	3/4"	1.984"	1/2"	0.065"	3-A Certified 63-04	00000000	00000
1 1/2"	1"	1.984"	1/2"	0.065"	3-A Certified 63-04	00000000	00000
2"	1"	2.516"	1/2"	0.065"	3-A Certified 63-04	00000000	00000
2"	1 1/2"	2.516"	1/2"	0.065"	3-A Certified 63-04	00000000	00000
2 1/2"	1 1/2"	3.047"	1/2"	0.065"	3-A Certified 63-04	00000000	00000
2 1/2"	2"	3.047"	1/2"	0.065"	3-A Certified 63-04	00000000	00000
3"	2"	3.579"	1/2"	0.065"	3-A Certified 63-04	00000000	00000
3"	2 1/2"	3.579"	1/2"	0.065"	3-A Certified 63-04	00000000	00000
4"	3"	4.682"	5/8"	0.065"	3-A Certified 63-04	00000000	000000

Clamps

304 Stainless Steel with Wing Nut

304 Stainless Steel with Wing Nut, Spring Loaded

304 Stainless Steel with Bolt

White Nylon Plastic with Wing Nut

Clamps with wing nut tighten by hand. Clamps with bolt tighten with a wrench. They handle higher pressures than wing-nut clamps for a stronger, more secure hold.

304 Stainless Steel with Wing Nut
For Tube OD	For Flange OD	Bolt Material	Max. Pressure	For Tube Specifications Met		Each
1/2", 3/4"	0.984"	__	1,200 psi @ 72° F	ASTM A269, ASTM A270	00000000	00000
1", 1 1/2"	1.984"	__	500 psi @ 72° F	ASTM A269, ASTM A270	00000000	0000
2"	2.516"	__	450 psi @ 72° F	ASTM A269, ASTM A270	00000000	00000
2 1/2"	3.047"	__	400 psi @ 72° F	ASTM A269, ASTM A270	00000000	00000
3"	3.579"	__	350 psi @ 72° F	ASTM A269, ASTM A270	00000000	00000
4"	4.682"	__	200 psi @ 72° F	ASTM A269, ASTM A270	00000000	00000
304 Stainless Steel with Wing Nut, Spring Loaded
1/2", 3/4"	0.984"	__	1,200 psi @ 72° F	ASTM A269, ASTM A270	0000000	00000
1", 1 1/2"	1.984"	__	500 psi @ 72° F	ASTM A269, ASTM A270	0000000	00000
2"	2.516"	__	450 psi @ 72° F	ASTM A269, ASTM A270	0000000	00000
2 1/2"	3.047"	__	400 psi @ 72° F	ASTM A269, ASTM A270	0000000	00000
3"	3.579"	__	350 psi @ 72° F	ASTM A269, ASTM A270	0000000	00000
4"	4.682"	__	200 psi @ 72° F	ASTM A269, ASTM A270	0000000	00000
304 Stainless Steel with Bolt
1", 1 1/2"	1.984"	304 Stainless Steel	1,500 psi @ 72° F	ASTM A269, ASTM A270	00000000	00000
2"	2.516"	304 Stainless Steel	1,000 psi @ 72° F	ASTM A269, ASTM A270	00000000	00000
2 1/2"	3.047"	304 Stainless Steel	1,000 psi @ 72° F	ASTM A269, ASTM A270	00000000	00000
3"	3.579"	304 Stainless Steel	1,000 psi @ 72° F	ASTM A269, ASTM A270	00000000	00000
4"	4.682"	304 Stainless Steel	1,000 psi @ 72° F	ASTM A269, ASTM A270	00000000	00000
White Nylon Plastic with Wing Nut
1/2", 3/4"	0.984"	__	150 psi @ 72° F	ASTM A269, ASTM A270	00000000	00000
1", 1 1/2"	1.984"	__	150 psi @ 72° F	ASTM A269, ASTM A270	00000000	00000
2"	2.516"	__	150 psi @ 72° F	ASTM A269, ASTM A270	00000000	00000
2 1/2"	3.047"	__	150 psi @ 72° F	ASTM A269, ASTM A270	00000000	00000
3"	3.579"	__	150 psi @ 72° F	ASTM A269, ASTM A270	00000000	00000
4"	4.682"	__	150 psi @ 72° F	ASTM A269, ASTM A270	00000000	00000

Gaskets and O-Rings

Gaskets
For Tube OD	ID	OD	Thick.	Temp. Range, °F	Color	Specifications Met		Each
Buna-N Rubber
1/2"	0.380"	0.860"	0.178"	-30° to 200°	Black	3-A Certified 18-03, FDA Compliant 21 CFR 177.1550, FDA Compliant 21 CFR 177.2600	0000000	00000
3/4"	0.620"	0.860"	0.178"	-30° to 200°	Black	3-A Certified 18-03, FDA Compliant 21 CFR 177.1550, FDA Compliant 21 CFR 177.2600	0000000	0000
1"	0.900"	1.980"	0.203"	-30° to 200°	Black	3-A Certified 18-03, FDA Compliant 21 CFR 177.1550, FDA Compliant 21 CFR 177.2600	0000000	000
1 1/2"	1.400"	1.980"	0.203"	-30° to 200°	Black	3-A Certified 18-03, FDA Compliant 21 CFR 177.1550, FDA Compliant 21 CFR 177.2600	0000000	000
2"	1.900"	2.520"	0.203"	-30° to 200°	Black	3-A Certified 18-03, FDA Compliant 21 CFR 177.1550, FDA Compliant 21 CFR 177.2600	0000000	000
2 1/2"	2.400"	3.050"	0.203"	-30° to 200°	Black	3-A Certified 18-03, FDA Compliant 21 CFR 177.1550, FDA Compliant 21 CFR 177.2600	0000000	000
3"	2.900"	3.580"	0.203"	-30° to 200°	Black	3-A Certified 18-03, FDA Compliant 21 CFR 177.1550, FDA Compliant 21 CFR 177.2600	0000000	000
4"	3.870"	4.680"	0.203"	-30° to 200°	Black	3-A Certified 18-03, FDA Compliant 21 CFR 177.1550, FDA Compliant 21 CFR 177.2600	0000000	0000
EPDM Rubber
1/2"	0.380"	0.860"	0.178"	-20° to 300°	Black	3-A Certified 18-03, FDA Compliant 21 CFR 177.1550, FDA Compliant 21 CFR 177.2600	0000000	0000
3/4"	0.620"	0.860"	0.178"	-20° to 300°	Black	3-A Certified 18-03, FDA Compliant 21 CFR 177.1550, FDA Compliant 21 CFR 177.2600	0000000	0000
1"	0.900"	1.980"	0.203"	-20° to 300°	Black	3-A Certified 18-03, FDA Compliant 21 CFR 177.1550, FDA Compliant 21 CFR 177.2600	0000000	0000
1 1/2"	1.400"	1.980"	0.203"	-20° to 300°	Black	3-A Certified 18-03, FDA Compliant 21 CFR 177.1550, FDA Compliant 21 CFR 177.2600	0000000	0000
2"	1.900"	2.520"	0.203"	-20° to 300°	Black	3-A Certified 18-03, FDA Compliant 21 CFR 177.1550, FDA Compliant 21 CFR 177.2600	0000000	0000
2 1/2"	2.400"	3.050"	0.203"	-20° to 300°	Black	3-A Certified 18-03, FDA Compliant 21 CFR 177.1550, FDA Compliant 21 CFR 177.2600	0000000	0000
3"	2.900"	3.580"	0.203"	-20° to 300°	Black	3-A Certified 18-03, FDA Compliant 21 CFR 177.1550, FDA Compliant 21 CFR 177.2600	0000000	0000
4"	3.870"	4.680"	0.203"	-20° to 300°	Black	3-A Certified 18-03, FDA Compliant 21 CFR 177.1550, FDA Compliant 21 CFR 177.2600	0000000	0000
Fluoroelastomer Rubber
1/2"	0.380"	0.860"	0.178"	-15° to 400°	Black	3-A Certified 18-03, FDA Compliant 21 CFR 177.2600	0000000	0000
3/4"	0.620"	0.860"	0.178"	-15° to 400°	Black	3-A Certified 18-03, FDA Compliant 21 CFR 177.2600	0000000	0000
1"	0.900"	1.980"	0.203"	-15° to 400°	Black	3-A Certified 18-03, FDA Compliant 21 CFR 177.2600	0000000	0000
1 1/2"	1.400"	1.980"	0.203"	-15° to 400°	Black	3-A Certified 18-03, FDA Compliant 21 CFR 177.2600	0000000	0000
2"	1.900"	2.520"	0.203"	-15° to 400°	Black	3-A Certified 18-03, FDA Compliant 21 CFR 177.2600	0000000	0000
2 1/2"	2.400"	3.050"	0.203"	-15° to 400°	Black	3-A Certified 18-03, FDA Compliant 21 CFR 177.2600	0000000	00000
3"	2.900"	3.580"	0.203"	-15° to 400°	Black	3-A Certified 18-03, FDA Compliant 21 CFR 177.2600	0000000	00000
4"	3.870"	4.680"	0.203"	-15° to 400°	Black	3-A Certified 18-03, FDA Compliant 21 CFR 177.2600	0000000	00000
PTFE Plastic
1/2"	0.380"	0.860"	0.178"	-100° to 500°	White	3-A Certified 20-27	00000000	0000
3/4"	0.620"	0.860"	0.178"	-100° to 500°	White	3-A Certified 20-27	00000000	0000
1"	0.900"	1.980"	0.203"	-100° to 500°	White	3-A Certified 20-27	00000000	0000
1 1/2"	1.400"	1.980"	0.203"	-100° to 500°	White	3-A Certified 20-27	00000000	0000
2"	1.900"	2.520"	0.203"	-100° to 500°	White	3-A Certified 20-27	00000000	0000
2 1/2"	2.400"	3.050"	0.203"	-100° to 500°	White	3-A Certified 20-27	00000000	0000
3"	2.900"	3.580"	0.203"	-100° to 500°	White	3-A Certified 20-27	00000000	0000
4"	3.870"	4.680"	0.203"	-100° to 500°	White	3-A Certified 20-27	00000000	0000
Silicone Rubber
1/2"	0.380"	0.860"	0.178"	-40° to 450°	Clear	3-A Certified 18-03, FDA Compliant 21 CFR 177.1550, FDA Compliant 21 CFR 177.2600	0000000	0000
3/4"	0.620"	0.860"	0.178"	-40° to 450°	Clear	3-A Certified 18-03, FDA Compliant 21 CFR 177.1550, FDA Compliant 21 CFR 177.2600	0000000	0000
1"	0.900"	1.980"	0.203"	-40° to 450°	Clear	3-A Certified 18-03, FDA Compliant 21 CFR 177.1550, FDA Compliant 21 CFR 177.2600	0000000	0000
1 1/2"	1.400"	1.980"	0.203"	-40° to 450°	Clear	3-A Certified 18-03, FDA Compliant 21 CFR 177.1550, FDA Compliant 21 CFR 177.2600	0000000	0000
2"	1.900"	2.520"	0.203"	-40° to 450°	Clear	3-A Certified 18-03, FDA Compliant 21 CFR 177.1550, FDA Compliant 21 CFR 177.2600	0000000	0000
2 1/2"	2.400"	3.050"	0.203"	-40° to 450°	Clear	3-A Certified 18-03, FDA Compliant 21 CFR 177.1550, FDA Compliant 21 CFR 177.2600	0000000	0000
3"	2.900"	3.580"	0.203"	-40° to 450°	Clear	3-A Certified 18-03, FDA Compliant 21 CFR 177.1550, FDA Compliant 21 CFR 177.2600	0000000	0000
4"	3.870"	4.680"	0.203"	-40° to 450°	Clear	3-A Certified 18-03, FDA Compliant 21 CFR 177.1550, FDA Compliant 21 CFR 177.2600	0000000	0000

Extra-High-Polish Metal
Quick-Clamp Sanitary Tube Fittings

For Use With: Air, Deionized Water, Pharmaceuticals, Water
Temperature Range: See Gaskets
Tubing: Use with 316/316L stainless steel that meets ASTM A269 or ASTM A270
Specifications Met: See table
Certification: Material Certificate with Traceable Lot Number and Test Report

Polished to a 20 Ra finish, these fittings have an extra-smooth interior that prevents product buildup and inhibits bacteria growth. Use them in pharmaceutical and bioprocessing applications. Also known as tri-clamp fittings, they connect with a clamp, a gasket, and another quick-clamp fitting for a fast and easy way to access your line. Fittings are 316 stainless steel for excellent corrosion resistance.

The pressure rating of the fitting will depend on the clamp you choose.

The temperature rating of the fitting will vary depending on the gasket material you choose.

Note: To complete a connection, you’ll need two quick-clamp fittings, a clamp, and a gasket (all sold separately).

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

Straight Reducers, Butt-Weld Tube

Fittings with butt-weld end are also known as ferrules; they weld to tubing for a permanent connection.

For Tube OD (A)	For Tube OD (B)	Wall Thick.	Material	Max. Pressure	Specifications Met		Each
3/4"	1/2"	0.065"	316/316L Stainless Steel	700 psi @ 72° F	ASME BPE	0000000	0000000
1"	3/4"	0.065"	316/316L Stainless Steel	700 psi @ 72° F	ASME BPE	0000000	000000
1 1/2"	1"	0.065"	316/316L Stainless Steel	700 psi @ 72° F	ASME BPE	0000000	000000
2"	1 1/2"	0.065"	316/316L Stainless Steel	700 psi @ 72° F	ASME BPE	0000000	000000

Clamps

Clamps have a wing nut and tighten by hand.

For Tube OD	For Flange OD	Material	Max. Pressure		Each
1/2", 3/4"	0.984"	316 Stainless Steel	700 psi @ 72° F	0000000	000000
1", 1 1/2"	1.984"	316 Stainless Steel	700 psi @ 72° F	0000000	00000
2"	2.516"	316 Stainless Steel	700 psi @ 72° F	0000000	00000

Gaskets

Buna-N gaskets are oil resistant. EPDM gaskets resist water and steam and work well in humid environments. Silicone gaskets withstand high temperatures. Fluoroelastomer gaskets stand up to fuel, oil, and acid condensates. PTFE gaskets withstand harsh chemicals, with the exception of molten alkali metal and elemental fluorine.

Buna-N Rubber
For Tube OD	ID	OD	Thick.	Temp. Range, °F	Color	Specifications Met		Each
1/2"	0.380"	0.860"	0.178"	-30° to 200°	Black	3-A Certified 18-03, FDA Compliant 21 CFR 177.1550, FDA Compliant 21 CFR 177.2600	0000000	00000
3/4"	0.620"	0.860"	0.178"	-30° to 200°	Black	3-A Certified 18-03, FDA Compliant 21 CFR 177.1550, FDA Compliant 21 CFR 177.2600	0000000	0000
1"	0.900"	1.980"	0.203"	-30° to 200°	Black	3-A Certified 18-03, FDA Compliant 21 CFR 177.1550, FDA Compliant 21 CFR 177.2600	0000000	000
1 1/2"	1.400"	1.980"	0.203"	-30° to 200°	Black	3-A Certified 18-03, FDA Compliant 21 CFR 177.1550, FDA Compliant 21 CFR 177.2600	0000000	000
2"	1.900"	2.520"	0.203"	-30° to 200°	Black	3-A Certified 18-03, FDA Compliant 21 CFR 177.1550, FDA Compliant 21 CFR 177.2600	0000000	000
EPDM Rubber
3/4"	0.620"	0.860"	0.178"	-20° to 300°	Black	3-A Certified 18-03, FDA Compliant 21 CFR 177.1550, FDA Compliant 21 CFR 177.2600	0000000	0000
1"	0.900"	1.980"	0.203"	-20° to 300°	Black	3-A Certified 18-03, FDA Compliant 21 CFR 177.1550, FDA Compliant 21 CFR 177.2600	0000000	0000
1 1/2"	1.400"	1.980"	0.203"	-20° to 300°	Black	3-A Certified 18-03, FDA Compliant 21 CFR 177.1550, FDA Compliant 21 CFR 177.2600	0000000	0000
2"	1.900"	2.520"	0.203"	-20° to 300°	Black	3-A Certified 18-03, FDA Compliant 21 CFR 177.1550, FDA Compliant 21 CFR 177.2600	0000000	0000
Silicone Rubber
1/2"	0.380"	0.860"	0.178"	-40° to 450°	Clear	3-A Certified 18-03, FDA Compliant 21 CFR 177.1550, FDA Compliant 21 CFR 177.2600	0000000	0000
3/4"	0.620"	0.860"	0.178"	-40° to 450°	Clear	3-A Certified 18-03, FDA Compliant 21 CFR 177.1550, FDA Compliant 21 CFR 177.2600	0000000	0000
1"	0.900"	1.980"	0.203"	-40° to 450°	Clear	3-A Certified 18-03, FDA Compliant 21 CFR 177.1550, FDA Compliant 21 CFR 177.2600	0000000	0000
1 1/2"	1.400"	1.980"	0.203"	-40° to 450°	Clear	3-A Certified 18-03, FDA Compliant 21 CFR 177.1550, FDA Compliant 21 CFR 177.2600	0000000	0000
2"	1.900"	2.520"	0.203"	-40° to 450°	Clear	3-A Certified 18-03, FDA Compliant 21 CFR 177.1550, FDA Compliant 21 CFR 177.2600	0000000	0000
Fluoroelastomer Rubber
1/2"	0.380"	0.860"	0.178"	-15° to 400°	Black	3-A Certified 18-03, FDA Compliant 21 CFR 177.2600	0000000	0000
3/4"	0.620"	0.860"	0.178"	-15° to 400°	Black	3-A Certified 18-03, FDA Compliant 21 CFR 177.2600	0000000	0000
1"	0.900"	1.980"	0.203"	-15° to 400°	Black	3-A Certified 18-03, FDA Compliant 21 CFR 177.2600	0000000	0000
1 1/2"	1.400"	1.980"	0.203"	-15° to 400°	Black	3-A Certified 18-03, FDA Compliant 21 CFR 177.2600	0000000	0000
2"	1.900"	2.520"	0.203"	-15° to 400°	Black	3-A Certified 18-03, FDA Compliant 21 CFR 177.2600	0000000	0000
PTFE Plastic
1/2"	0.380"	0.860"	0.178"	-100° to 500°	White	3-A Certified 20-27	00000000	0000
3/4"	0.620"	0.860"	0.178"	-100° to 500°	White	3-A Certified 20-27	00000000	0000
1"	0.900"	1.980"	0.203"	-100° to 500°	White	3-A Certified 20-27	00000000	0000
1 1/2"	1.400"	1.980"	0.203"	-100° to 500°	White	3-A Certified 20-27	00000000	0000
2"	1.900"	2.520"	0.203"	-100° to 500°	White	3-A Certified 20-27	00000000	0000

Thin-Wall Butt-Weld Stainless
Steel Unthreaded Pipe Fittings

Also known as Schedule 10 fittings, these are thin and lightweight. They have beveled ends that, when flush to pipe, create a trough for a strong weld that permits maximum flow.

304 stainless steel fittings have very good corrosion resistance. 316 stainless steel fittings have excellent corrosion resistance.

Offset straight reducers are also known as eccentric reducers; they connect one pipe to another smaller-diameter pipe and have the centers offset so your line can drain.

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

Offset Straight Reducers

For Use With: Air, Natural Gas, Oil, Water
Specifications Met: ASME B16.9, ASTM A403, MSS SP-43
Pipe: Use Schedule 10 stainless steel

Pipe Size		Wall Thick.
(A)	(B)	(A)	(B)	Construction		Each
304/304L Stainless Steel
1	1/2	0.109"	0.083"	Welded	000000000	000000
1	3/4	0.109"	0.083"	Welded	000000000	00000
1 1/2	1	0.109"	0.109"	Welded	000000000	00000
2	1	0.109"	0.109"	Welded	000000000	00000
2	1 1/2	0.109"	0.109"	Welded	000000000	00000
2 1/2	2	0.12"	0.109"	Welded	000000000	00000
3	1 1/2	0.12"	0.109"	Welded	000000000	00000
3	2	0.12"	0.109"	Welded	000000000	00000
3	2 1/2	0.12"	0.12"	Welded	000000000	00000
4	2	0.12"	0.109"	Welded	000000000	000000
4	2 1/2	0.12"	0.12"	Welded	000000000	000000
4	3	0.12"	0.12"	Welded	000000000	00000
6	4	0.134"	0.12"	Welded	000000000	000000
316/316L Stainless Steel
1	1/2	0.109"	0.083"	Welded	000000000	00000
1	3/4	0.109"	0.083"	Welded	000000000	00000
1 1/2	1	0.109"	0.109"	Welded	000000000	00000
2	1	0.109"	0.109"	Welded	000000000	00000
2	1 1/2	0.109"	0.109"	Welded	000000000	00000
2 1/2	2	0.12"	0.109"	Welded	000000000	00000
3	1 1/2	0.12"	0.109"	Welded	000000000	000000
3	2	0.12"	0.109"	Welded	000000000	00000
3	2 1/2	0.12"	0.12"	Welded	000000000	00000
4	2	0.12"	0.109"	Welded	000000000	000000
4	2 1/2	0.12"	0.12"	Welded	000000000	000000
4	3	0.12"	0.12"	Welded	000000000	00000
6	4	0.134"	0.12"	Welded	000000000	000000

Standard-Wall Butt-Weld Steel Unthreaded Pipe Fittings

Butt-weld fittings allow for a smooth connection that provides maximum flow. They have beveled ends that, when flush to pipe, create a trough for a strong, permanent weld. Fittings are also known as Schedule 40. They are for use in noncorrosive environments.

Offset straight reducers are also known as eccentric reducers; they connect one pipe to another smaller-diameter pipe and have the centers offset so your line can drain.

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

Offset Straight Reducers

For Use With: Air, Steam, Oil, Water, Natural Gas
Specifications Met: ASTM A234, ASME B16.9
Pipe Nipples and Pipe: Use Schedule 40 steel
Flanges: Use Class 150 steel

Pipe Size		Wall Thick.
(A)	(B)	(A)	(B)	Construction		Each
3/4	1/2	0.113"	0.109"	Welded	000000000	000000
1	1/2	0.133"	0.109"	Welded	000000000	00000
1	3/4	0.133"	0.113"	Welded	000000000	00000
1 1/4	1/2	0.14"	0.109"	Welded	000000000	00000
1 1/4	3/4	0.14"	0.113"	Welded	000000000	00000
1 1/4	1	0.14"	0.133"	Welded	000000000	00000
1 1/2	1/2	0.145"	0.109"	Welded	000000000	00000
1 1/2	3/4	0.145"	0.113"	Welded	000000000	00000
1 1/2	1	0.145"	0.133"	Welded	000000000	00000
1 1/2	1 1/4	0.145"	0.14"	Welded	000000000	00000
2	3/4	0.154"	0.113"	Welded	000000000	000000
2	1	0.154"	0.133"	Welded	000000000	00000
2	1 1/4	0.154"	0.14"	Welded	000000000	00000
2	1 1/2	0.154"	0.145"	Welded	000000000	00000
2 1/2	2	0.203"	0.154"	Welded	000000000	00000
3	1 1/4	0.216"	0.14"	Welded	000000000	000000
3	1 1/2	0.216"	0.145"	Welded	000000000	00000
3	2	0.216"	0.154"	Welded	000000000	00000
3	2 1/2	0.216"	0.203"	Welded	000000000	00000
4	2	0.237"	0.154"	Welded	000000000	00000
4	2 1/2	0.237"	0.203"	Welded	000000000	00000
4	3	0.237"	0.216"	Welded	000000000	00000
6	3	0.28"	0.216"	Welded	000000000	000000
6	4	0.28"	0.237"	Welded	000000000	000000
8	4	0.322"	0.237"	Welded	000000000	000000
8	6	0.322"	0.28"	Welded	000000000	000000

Over 48,000 metals now include traceable material certificates.

How to Identify and Measure Fittings

Butt-Weld Fittings for Stainless Steel Tubing

High-Polish Metal Quick-Clamp Sanitary Tube Fittings

Extra-High-Polish Metal
Quick-Clamp Sanitary Tube Fittings

Thin-Wall Butt-Weld Stainless
Steel Unthreaded Pipe Fittings

Standard-Wall Butt-Weld Steel Unthreaded Pipe Fittings

How to Identify and Measure Fittings

Butt-Weld Fittings for Stainless Steel Tubing

High-Polish Metal Quick-Clamp Sanitary Tube Fittings

Extra-High-Polish MetalQuick-Clamp Sanitary Tube Fittings

Thin-Wall Butt-Weld StainlessSteel Unthreaded Pipe Fittings

Standard-Wall Butt-Weld Steel Unthreaded Pipe Fittings

Extra-High-Polish Metal
Quick-Clamp Sanitary Tube Fittings

Thin-Wall Butt-Weld Stainless
Steel Unthreaded Pipe Fittings