Air Rings | McMaster-Carr

	ID ID

1/2"

	OD OD

3 1/4"

	Air Consumption Air Consumption

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

DFARS Specialty Metals
COTS-Exempt

	Volume Volume

	Specifications Met Specifications Met

OSHA Compliant 29 CFR
1910.242

OSHA Compliant 29 CFR
1910.95

	Overall Height Overall Height

	Overall Width Overall Width

10 Products

Circular-Flow Air Knives

Use a 360° airstream to blow off, dry, clean, and cool tube, cable, extruded shapes, and hose. These knives are also known as air wipes. They conform to OSHA 29 CFR 1910.242 requirements for maximum air outlet pressure and OSHA 29 CFR 1910.95 requirements for noise. Volume (dB) is measured 3 ft. from the air knife.

Shim sets (sold separately) install in the airflow slot to adjust the flow and force of air.

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

Air Knives
				O'all					Air Inlet						Shim Sets
ID	OD	Air Consumption	Volume, dB	Wd.	Ht.	Dp.	Max. Temp., °F	Max. Inlet Pressure, psi	Pipe Size	Thread Type	Gender	Specifications Met		Each		Each
Aluminum
1/2"	3 1/4"	17 cfm @ 100 psi	75	5 15/16"	8 3/64"	1 1/8"	400°	250	1/4	NPT	Female	OSHA Compliant 29 CFR 1910.242, OSHA Compliant 29 CFR 1910.95	0000000	0000000	0000000	000000
1"	3 3/4"	23 cfm @ 100 psi	76	6 5/8"	8 9/32"	1 1/8"	400°	250	1/4	NPT	Female	OSHA Compliant 29 CFR 1910.242, OSHA Compliant 29 CFR 1910.95	0000000	000000	0000000	00000
2"	4 3/4"	36 cfm @ 100 psi	77	7 5/8"	9 3/16"	1 1/8"	400°	250	1/4	NPT	Female	OSHA Compliant 29 CFR 1910.242, OSHA Compliant 29 CFR 1910.95	0000000	000000	0000000	00000
3"	5 3/4"	48 cfm @ 100 psi	79	8 5/8"	10 7/32"	1 1/8"	400°	250	1/4	NPT	Female	OSHA Compliant 29 CFR 1910.242, OSHA Compliant 29 CFR 1910.95	0000000	000000	0000000	00000
4"	6 3/4"	61 cfm @ 100 psi	81	9 3/8"	9 25/32"	1 1/8"	400°	250	1/4	NPT	Female	OSHA Compliant 29 CFR 1910.242, OSHA Compliant 29 CFR 1910.95	0000000	00000000	0000000	00000