Liquid Vacuums | McMaster-Carr

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31 Products

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Chemical-Resistant Plastic Liquid-Powered Jet Pumps

Made from PVC, these pumps are highly corrosion resistant and lightweight. Use them to produce emulsions, elevate water, and transport grains and other small particles. When high-pressure liquid 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. 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 water at 100 psi with no feet of discharge head.

	Liquid Suction Flow Rate, gpm						Suction		Intake		Discharge		Overall
	@ 5 ft. of Lift	@ 10 ft. of Lift	@ 20 ft. of Lift	Max. Suction Lift, ft.	Operating Pressure, psi	Max. Temp., ° F	Pipe Size	Thread Type	Pipe Size	Thread Type	Pipe Size	Thread Type	Lg.	Wd.		Each
For Grains, Slurries, and Water







				PVC Housing

				8	7	5	27	100	70	3/4	NPT	1/2	NPT	3/4	NPT	5 3/4"	2"	4979K21	0000000


				14	12	9	27	100	70	1	NPT	1/2	NPT	1	NPT	6 7/8"	2 1/2"	4979K22	000000
				24	22	16	27	100	70	1 1/4	NPT	3/4	NPT	1 1/4	NPT	9 1/8"	3"	4979K23	000000
				40	36	27	27	100	70	1 1/2	NPT	1	NPT	1 1/2	NPT	11"	3 1/2"	4979K24	000000
				73	66	49	27	100	70	2	NPT	1 1/4	NPT	2	NPT	14 1/4"	4"	4979K25	000000
				127	114	86	27	100	70	2 1/2	NPT	1 1/2	NPT	2 1/2	NPT	18 1/2"	5"	4979K26	00000000
				237	213	160	27	100	70	3	NPT	2	NPT	3	NPT	24 1/4"	6"	4979K27	00000000

Metal Liquid-Powered Jet Pumps

Powered by liquid, use these to pump a second liquid or to produce emulsions, elevate water, and transport grains and other small particles. When high-pressure liquid enters the intake, it creates suction that draws a second liquid 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. 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 water at 100 psi with no feet of discharge head.

Bronze Housing—Bronze is more corrosion resistant than steel.

316 Stainless Steel Housing—316 stainless steel pumps are the most corrosion-resistant metal option.

	Liquid Suction Flow Rate, gpm						Suction		Intake		Discharge		Overall
	@ 5 ft. of Lift	@ 10 ft. of Lift	@ 20 ft. of Lift	Max. Suction Lift, ft.	Operating Pressure, psi	Temp. Range, ° F	Pipe Size	Thread Type	Pipe Size	Thread Type	Pipe Size	Thread Type	Lg.	Wd.		Each
For Grains, Slurries, and Water







				Steel Housing

				8	7	5	27	80	-20 to 150	3/4	NPT	3/8	NPT	3/4	NPT	5 7/8"	1 1/4"	4979K31	0000000


				8	7	5	27	80	-20 to 150	3/4	NPT	1/2	NPT	3/4	NPT	5 7/8"	1 1/4"	4979K39	000000
				14	12	9	27	80	-20 to 150	1	NPT	1/2	NPT	1	NPT	7 1/8"	1 3/4"	4979K32	000000
				24	22	16	27	80	-20 to 150	1 1/4	NPT	3/4	NPT	1 1/4	NPT	9"	2 3/8"	4979K33	000000
				40	36	27	27	80	-20 to 150	1 1/2	NPT	1	NPT	1 1/2	NPT	11"	2 5/8"	4979K34	000000
				73	66	49	27	80	-20 to 150	2	NPT	1 1/4	NPT	2	NPT	14 3/8"	3 1/2"	4979K35	000000
				127	114	86	27	80	-20 to 150	2 1/2	NPT	1 1/2	NPT	2 1/2	NPT	18 1/8"	4 1/2"	4979K36	00000000
				237	213	160	27	80	-20 to 150	3	NPT	2	NPT	3	NPT	23 7/8"	6 1/8"	4979K37	00000000




						Bronze Housing

						8	7	5	27	15 to 200	-20 to 150	3/4	NPT	3/8	NPT	3/4	NPT	5 7/8"	1 1/4"	4979K11	000000


						8	7	5	27	15 to 200	-20 to 150	3/4	NPT	1/2	NPT	3/4	NPT	5 7/8"	1 1/4"	4979K19	000000
						14	12	9	27	15 to 200	-20 to 150	1	NPT	1/2	NPT	1	NPT	7 1/8"	1 3/4"	4979K12	000000
						24	22	16	27	15 to 200	-20 to 150	1 1/4	NPT	3/4	NPT	1 1/4	NPT	9"	2 3/8"	4979K13	000000
						40	36	27	27	15 to 200	-20 to 150	1 1/2	NPT	1	NPT	1 1/2	NPT	11"	2 5/8"	4979K14	000000
						73	66	49	27	15 to 200	-20 to 150	2	NPT	1 1/4	NPT	2	NPT	14 3/8"	3 1/2"	4979K15	00000000
						127	114	86	27	15 to 200	-20 to 150	2 1/2	NPT	1 1/2	NPT	2 1/2	NPT	18 1/8"	4 1/2"	4979K16	00000000
						237	213	160	27	15 to 200	-20 to 150	3	NPT	2	NPT	3	NPT	23 7/8"	6 1/8"	4979K17	00000000




								316 Stainless Steel Housing

								8	7	5	27	15 to 200	-150 to 150	3/4	NPT	3/8	NPT	3/4	NPT	5 7/8"	1 1/4"	4979K51	000000


								8	7	5	27	15 to 200	-150 to 150	3/4	NPT	1/2	NPT	3/4	NPT	5 7/8"	1 1/4"	4979K59	000000
								14	12	9	27	15 to 200	-150 to 150	1	NPT	1/2	NPT	1	NPT	7 1/8"	1 3/4"	4979K52	000000
								24	22	16	27	15 to 200	-150 to 150	1 1/4	NPT	3/4	NPT	1 1/4	NPT	9"	2 3/8"	4979K53	00000000
								40	36	27	27	15 to 200	-150 to 150	1 1/2	NPT	1	NPT	1 1/2	NPT	11"	2 5/8"	4979K54	00000000
								73	66	49	27	15 to 200	-150 to 150	2	NPT	1 1/4	NPT	2	NPT	14 3/8"	3 1/2"	4979K55	00000000
								127	114	86	27	15 to 200	-150 to 150	2 1/2	NPT	1 1/2	NPT	2 1/2	NPT	18 1/8"	4 1/2"	4979K56	00000000
								237	213	160	27	15 to 200	-150 to 150	3	NPT	2	NPT	3	NPT	23 7/8"	6 1/8"	4979K57	00000000