Air Injectors | McMaster-Carr

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Suction Pipe Size

For Use With

Housing Material

Power Source

Intake Pipe Size

Pipe Size

Discharge Pipe Size

Material

Maximum Pressure

Liquid Suction Flow Rate @ 5 Feet of Lift

Tube Length

DFARS Specialty Metals

Exempt

U.S.–Mexico–Canada Agreement (USMCA) Qualifying

Yes

Export Control Classification Number (ECCN)

RoHS

REACH

Liquid Suction Flow Rate @ 20 Feet of Lift

Overall Length

Liquid Suction Flow Rate @ 10 Feet of Lift

For Maximum Reservoir Capacity

50 gal.

100 gal.

Gas Suction Flow @ 50 psi Steam

Gas Suction Flow @ 80 psi Steam

Minimum Pressure

Minimum Temperature

Overall Width

Width

19 Products

Steam-Powered Jet Pumps

Use plant steam to pump liquids and gases, prime pumps, and remove fumes. When high-pressure steam enters the intake, it creates suction that draws a second liquid or gas into the pump body and discharges a pressurized blend of the two. The discharge pressure is greater than the suction flow but lower than the intake pressure. Gas suction flow is calculated using steam at atmospheric pressure. They have no moving parts or seals, eliminating downtime for lubrication and repairs. They're also known as eductors, ejectors, and injectors.

Note: Liquid suction flow rate is calculated using 80 psi steam at 0-40 feet of discharge head.

Bronze Housing—Bronze is more corrosion resistant than steel.

316 Stainless Steel Housing—316 stainless steel pumps provide the most corrosion resistance.

	Liquid Suction Flow Rate, gpm			Gas Suction Flow, ft³/min				Intake Pressure, psi			Suction		Intake		Discharge		Overall
	@ 5 ft. of Lift	@ 10 ft. of Lift	@ 20 ft. of Lift	@ 20 psi Steam	@ 50 psi Steam	@ 80 psi Steam	Max. Suction Lift, ft.	For Liquids	For Gases	Temp. Range, ° F	Pipe Size	Thread Type	Pipe Size	Thread Type	Pipe Size	Thread Type	Lg.	Wd.		Each
For Air, Inert Gas, Steam, and Water







				Steel Housing

				6	5	3	5	4	3	20	35 to 150	20 to 80	-20 to 150	1/2	NPT	3/8	NPT	1/2	NPT	4 1/2"	1 1/8"	4977K31	0000000


				10	9	5	8	6	6	20	35 to 150	20 to 80	-20 to 150	3/4	NPT	1/2	NPT	3/4	NPT	5 7/8"	1 1/4"	4977K32	000000
				17	15	9	14	11	10	20	35 to 150	20 to 80	-20 to 150	1	NPT	3/4	NPT	1	NPT	7 1/8"	1 3/4"	4977K33	000000
				31	27	15	24	20	17	20	35 to 150	20 to 80	-20 to 150	1 1/4	NPT	1	NPT	1 1/4	NPT	9"	2 3/8"	4977K34	000000
				51	44	25	40	32	28	20	35 to 150	20 to 80	-20 to 150	1 1/2	NPT	1	NPT	1 1/2	NPT	11"	2 5/8"	4977K35	000000
				93	80	46	73	58	51	20	35 to 150	20 to 80	-20 to 150	2	NPT	1 1/4	NPT	2	NPT	14 3/8"	3 1/2"	4977K36	000000




						Bronze Housing

						6	5	3	5	4	3	20	35 to 150	20 to 80	-20 to 150	1/2	NPT	3/8	NPT	1/2	NPT	4 1/2"	1 1/8"	4977K11	000000


						10	9	5	8	6	6	20	35 to 150	20 to 80	-20 to 150	3/4	NPT	1/2	NPT	3/4	NPT	5 7/8"	1 1/4"	4977K12	000000
						17	15	9	14	11	10	20	35 to 150	20 to 80	-20 to 150	1	NPT	3/4	NPT	1	NPT	7 1/8"	1 3/4"	4977K13	000000
						31	27	15	24	20	17	20	35 to 150	20 to 80	-20 to 150	1 1/4	NPT	1	NPT	1 1/4	NPT	9"	2 3/8"	4977K14	000000
						51	44	25	40	32	28	20	35 to 150	20 to 80	-20 to 150	1 1/2	NPT	1	NPT	1 1/2	NPT	11"	2 5/8"	4977K15	000000
						93	80	46	73	58	51	20	35 to 150	20 to 80	-20 to 150	2	NPT	1 1/4	NPT	2	NPT	14 3/8"	3 1/2"	4977K16	000000




								316 Stainless Steel Housing

								6	5	3	5	4	3	20	35 to 150	20 to 80	-150 to 150	1/2	NPT	3/8	NPT	1/2	NPT	4 1/2"	1 1/8"	4977K51	000000


								10	9	5	8	6	6	20	35 to 150	20 to 80	-150 to 150	3/4	NPT	1/2	NPT	3/4	NPT	5 7/8"	1 1/4"	4977K52	000000
								17	15	9	14	11	10	20	35 to 150	20 to 80	-150 to 150	1	NPT	3/4	NPT	1	NPT	7 1/8"	1 3/4"	4977K53	000000
								51	44	25	40	32	28	20	35 to 150	20 to 80	-150 to 150	1 1/2	NPT	1	NPT	1 1/2	NPT	11"	2 5/8"	4977K55	00000000
								93	80	46	73	58	51	20	35 to 150	20 to 80	-150 to 150	2	NPT	1 1/4	NPT	2	NPT	14 3/8"	3 1/2"	4977K56	00000000

Coolant Aerators

Inject air directly into your coolant to keep it odor free and extend service life.

				Housing									Electrical
	For Max. Reservoir Cap., gal.	Flow Rate, cm³/min	Tube Lg., ft.	Lg.	Wd.	Ht.	Material	Diffuser Material	Tube Material	Current, amp	Voltage, V AC	Cord Lg., ft.	Connection	No. of Blades		Each
2 Air Ports



		50	3,000	3 1/2	5"	3"	2 1/2"	Plastic	Bronze	PVC	0.032	120	2 1/2	Straight Blade	2	2000K4	000000


		100	5,000	10	6"	4"	3"	Plastic	Bronze	PVC	0.041	120	2 1/2	Straight Blade	2	2000K6	000000