Subfractional Pumps | McMaster-Carr

Filter by

System of Measurement

Voltage

For Use With

Sodium Hydroxide (Caustic Soda)

Sodium Hypochlorite (Bleach)

Power Source

Maximum Flow Rate

Discharge Pipe Size

Pump Type

Positive Displacement

Flow Rate @ Pressure

Priming Type

Flow Rate

Maximum Pressure

Flow Rate @ 10 Feet of Head

Pump Style

Discharge Connection

Duty Cycle

Maximum Feet of Head

Intake Connection

Maximum Temperature

Discharge Connection Port

Tube ID

RoHS

Compliant with Exemptions

Not Compliant

Export Control Classification Number (ECCN)

EAR99

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

Yes

REACH

Compliant

Not Compliant

DFARS Specialty Metals

Exempt

Forward

How can we improve?

67 Products

Any-Direction Constant-Flow-Rate Diaphragm Pumps for Water

Style A

Mount these diaphragm pumps in any position, even upside down. Pumps have a fractional horsepower motor rated for intermittent use (return to room temperature before restarting). They are for use in low-flow spraying, draining, and washdown applications. They are self-priming, which means they create a suction force to draw liquid upward. Pumps can run dry and do not require an initial fill, so they’re a good choice for applications without a constant flow of liquid. Do not use with solids.

Pressure Switch—Pumps with a pressure switch automatically shut off the pump at the maximum pressure.

Battery Powered—Battery-operated pumps operate on a 12-volt battery. They are commonly used with agricultural sprayers and washers.

								Intake			Discharge				Overall
	Style	Max. Flow Rate, gpm	Flow Rate @ Pressure	Max. ft. of Head, ft.	Max. Pressure, psi	Max. Temp., ° F	Current, amp	Pipe Size	Thread Type	Gender	Pipe Size	Thread Type	Gender	Max. Self-Priming Ht., ft.	Lg.	Wd.	Ht.	Power Source		Each
120V AC, Single Phase—With Thermal Overload Protection and With Pressure Switch







				Hardwire

				A	1.5	1.24 gpm @ 20 psi 1.04 gpm @ 60 psi	346	150	170	1	3/8	NPT	Female	3/8	NPT	Female	8	9 3/8"	3 3/8"	4 1/8"	Electric	8080K42	0000000




						Plug In

						A	1.4	1.15 gpm @ 20 psi 0.84 gpm @ 60 psi	138	60	130	0.57	3/8	NPT	Female	3/8	NPT	Female	8	7 5/8"	3 3/8"	4 1/4"	Electric	8080K31	000000


						A	1.6	1.32 gpm @ 20 psi 1.07 gpm @ 60 psi	231	100	170	0.95	3/8	NPT	Female	3/8	NPT	Female	8	8 5/8"	3 3/8"	4"	Electric	8080K14	000000
						A	1.7	1.52 gpm @ 20 psi 0.03 gpm @ 60 psi	138	60	170	0.61	3/8	NPT	Female	3/8	NPT	Female	8	8 5/8"	3 3/8"	4"	Electric	8080K13	000000
						A	3	2.20 gpm @ 20 psi	104	45	120	0.7	1/2	NPSM	Male	1/2	NPSM	Male	8	8 3/4"	5"	4 1/2"	Electric	8080K39	000000


						120V AC, Single Phase—With Thermal Overload Protection







										Plug In

										A	3.4	2.30 gpm @ 20 psi	92	40	120	1	1/2	NPSM	Male	1/2	NPSM	Male	8	7 5/8"	5"	4 3/8"	Electric	8080K19	000000


										12V DC—Without Thermal Overload Protection and With Pressure Switch







														Hardwire

														A	1.8	1.45 gpm @ 20 psi 1.22 gpm @ 60 psi	231	100	170	8.7	3/8	NPT	Female	3/8	NPT	Female	10	8 3/8"	4"	4 1/8"	Battery	1011N13	000000


														A	1.8	1.57 gpm @ 20 psi 1.23 gpm @ 60 psi	138	60	170	7.2	3/8	NPT	Female	3/8	NPT	Female	12	8 3/8"	4"	4 1/8"	Battery	1011N12	000000
														A	3	2.69 gpm @ 20 psi	115	50	170	8	1/2	NPSM	Male	1/2	NPSM	Male	8	8 5/8"	5"	4 1/2"	Battery	1011N14	000000
														A	3.5	2.56 gpm @ 20 psi	115	50	130	9.9	1/2	NPSM	Male	1/2	NPSM	Male	9	8 5/8"	5"	4 1/2"	Battery	1011N16	000000

Extended-Life Immersion Circulation Pumps for Water and Coolants

A sealless construction means these pumps have few moving parts that can fail and shorten service life. The intake can be completely submerged in liquid. Pumps have a totally enclosed fan-cooled (TEFC) motor for use in dusty, dirty, and damp environments. They are gravity fed and require an elevated liquid source. Do not run dry.

Note: If flow control is needed, place valves or reducers on the discharge side; never restrict the inlet of a pump with a valve or reducer.

With Pipe Connections

Image of Product. Front orientation. Centrifugal Pumps. Extended-Life Immersion Circulation Pumps for Water and Coolants, With Pipe Connections.

12V DC—12V DC pumps must be fully submerged in liquid to run.

											Discharge		Overall
	Max. Flow Rate, gpm	Flow Rate @ 10 ft. of Head, gpm	Max. ft. of Head, ft.	Max. Pressure, psi	Max. Viscosity, cP	Temp. Range, ° F	Electrical Connection Type	Power	Current, amp	Intake Connection Type	Connection	Connection Type	Lg.	Wd.	Ht.		Each
12V DC—Without Thermal Overload Protection



		2.7	0.5	11	50	5	32 to 120	Hardwire	Fractional	0.9	1/4 Male NPT	Threaded	1/4 Male NPT	4 15/16"	2 1/4"	3 1/4"	3128N41	0000000


		24V DC—Without Thermal Overload Protection



				2.7	0.5	11	50	5	32 to 190	Hardwire	Fractional	0.5	1/4 Male NPT	Threaded	1/4 Male NPT	4 15/16"	2 1/4"	3 1/4"	3128N12	000000

Replacement Impellers

		Each
Impeller	2640N12	0000000

Harsh-Environment Compact Constant-Flow-Rate Gear Pumps for Water and Oil

An aluminum enclosure around the motor provides protection in dusty and dirty environments. Designed to fit into small equipment, these pumps have miniature gears and a fractional horsepower motor for low-flow applications. Pumps are gravity fed and require an elevated liquid source to fully fill the pump before turning on. Do not run dry or use with solids.

Note: If flow control is needed, place valves or reducers on the discharge side; never restrict the inlet of a pump with a valve or reducer.

								Intake (NPT)			Discharge (NPT)			Overall
	Max. Flow Rate	Max. ft. of Head, ft.	Max. Pressure, psi	Max. Viscosity, cP	Temp. Range, ° F	Power	Current	Connection	Gender	For Tube ID	Connection	Gender	For Tube ID	Lg.	Wd.	Ht.		Each
12V DC—Without Thermal Overload Protection







				Hardwire

				0.61 gpm (78 fl oz/min)	46	20	800	10 to 180	Fractional	2.2 amp	Barbed	Male	3/16"	Barbed	Male	3/16"	4"	1 3/4"	2 1/2"	8220K43	000000


				24V DC—Without Thermal Overload Protection







								Hardwire

								0.61 gpm (78 fl oz/min)	46	20	800	10 to 180	Fractional	1.4 amp	Barbed	Male	3/16"	Barbed	Male	3/16"	4"	1 3/4"	2 1/2"	8220K44	00000

Fixed-Flow-Rate Peristaltic Pumps for Chemicals

Also known as tubing pumps, these maintain a fixed flow rate. Pumps are self-priming, which means they create a suction force to draw liquid upward and fill the pump chamber. Mount them up to 25 feet above your liquid source. All can run dry. Do not use with solids.

Polypropylene and Tygon Wetted Parts—Pumps with Tygon 2375 lining resist harsh substances such as isopropyl alcohol and sodium chloride.

Viton® Fluoroelastomer Wetted Parts—Pumps with Viton® Fluoroelastomer tubing withstand oil such as gasoline and hydraulic oil.

	Pumps												Replacement Pump Heads
							Overall
	Flow Rate, gal./day (For Tube ID)	Max. Pressure, psi	Max. Viscosity, cP	Temp., ° F	Power	Current, amp	Lg.	Wd.	Ht.	Includes		Each		Each
115V AC, Single Phase—Plug In







				Polypropylene and Tygon Wetted Parts

				0.07 (1/16") 0.25 (1/8")	30	800	32 to 122	Fractional	0.03	5 1/2"	3 1/4"	3 3/4"	4 1/2" Lg. of 1/16" ID Tygon Tubing with Tygon 2375 Lining (Shore A60), 4 1/2" Lg. of 1/8" ID Tygon Tubing with Tygon 2375 Lining (Shore A60)	43045K227	0000000	43045K116	000000


				0.34 (1/16") 1.25 (1/8")	30	800	32 to 122	Fractional	0.03	5 1/2"	3 1/4"	3 3/4"	4 1/2" Lg. of 1/16" ID Tygon Tubing with Tygon 2375 Lining (Shore A60), 4 1/2" Lg. of 1/8" ID Tygon Tubing with Tygon 2375 Lining (Shore A60)	43045K228	000000	43045K116	00000
				0.87 (1/16") 3.53 (1/8") 6.84 (3/16")	30	800	32 to 122	Fractional	0.03	5 1/2"	3 1/4"	3 3/4"	6" Lg. of 1/16" ID Tygon Tubing with Tygon 2375 Lining (Shore A60), 6" Lg. of 1/8" ID Tygon Tubing with Tygon 2375 Lining (Shore A60), 6" Lg. of 3/16" ID Tygon Tubing with Tygon 2375 Lining (Shore A60)	43045K232	000000	43045K122	00000
				1.75 (1/16") 7.07 (1/8") 13.68 (3/16")	30	800	32 to 122	Fractional	0.03	5 1/2"	3 1/4"	3 3/4"	6" Lg. of 1/16" ID Tygon Tubing with Tygon 2375 Lining (Shore A60), 6" Lg. of 1/8" ID Tygon Tubing with Tygon 2375 Lining (Shore A60), 6" Lg. of 3/16" ID Tygon Tubing with Tygon 2375 Lining (Shore A60)	43045K233	000000	43045K122	00000
				22.8 (3/16") 38 (1/4")	15	500	32 to 122	Fractional	0.52	5"	5"	7"	6" Lg. of 1/4" ID Tygon Tubing with Tygon 2375 Lining (Shore A60), 6" Lg. of 3/16" ID Tygon Tubing with Tygon 2375 Lining (Shore A60)	43045K237	000000	43045K127	00000
				45.6 (3/16") 76 (1/4")	15	200	32 to 122	Fractional	0.65	5"	5"	7"	6" Lg. of 1/4" ID Tygon Tubing with Tygon 2375 Lining (Shore A60), 6" Lg. of 3/16" ID Tygon Tubing with Tygon 2375 Lining (Shore A60)	43045K238	000000	43045K127	00000
				228 (3/16") 380 (1/4")	15	50	32 to 122	Fractional	1.74	5"	5"	7"	6" Lg. of 1/4" ID Tygon Tubing with Tygon 2375 Lining (Shore A60), 6" Lg. of 3/16" ID Tygon Tubing with Tygon 2375 Lining (Shore A60)	43045K239	000000	43045K127	00000




						PVDF and Viton® Fluoroelastomer Wetted Parts

						0.02 (1/32") 0.07 (1/16") 0.25 (1/8")	30	800	32 to 122	Fractional	0.03	5 1/2"	3 1/4"	3 3/4"	4 1/2" Lg. of 1/16" ID Viton® Fluoroelastomer Tubing (Shore A60), 4 1/2" Lg. of 1/32" ID Viton® Fluoroelastomer Tubing (Shore A60), 4 1/2" Lg. of 1/8" ID Viton® Fluoroelastomer Tubing (Shore A60)	43045K211	000000	43045K116	00000


						0.11 (1/32") 0.34 (1/16") 1.25 (1/8")	30	800	32 to 122	Fractional	0.03	5 1/2"	3 1/4"	3 3/4"	4 1/2" Lg. of 1/16" ID Viton® Fluoroelastomer Tubing (Shore A60), 4 1/2" Lg. of 1/32" ID Viton® Fluoroelastomer Tubing (Shore A60), 4 1/2" Lg. of 1/8" ID Viton® Fluoroelastomer Tubing (Shore A60)	43045K212	000000	43045K116	00000
						0.87 (1/16") 3.53 (1/8") 6.84 (3/16")	30	800	32 to 122	Fractional	0.03	5 1/2"	3 1/4"	3 3/4"	6" Lg. of 1/16" ID Viton® Fluoroelastomer Tubing (Shore A60), 6" Lg. of 1/8" ID Viton® Fluoroelastomer Tubing (Shore A60), 6" Lg. of 3/16" ID Viton® Fluoroelastomer Tubing (Shore A60)	43045K216	000000	43045K122	00000
						1.75 (1/16") 7.07 (1/8") 13.68 (3/16")	30	800	32 to 122	Fractional	0.03	5 1/2"	3 1/4"	3 3/4"	6" Lg. of 1/16" ID Viton® Fluoroelastomer Tubing (Shore A60), 6" Lg. of 1/8" ID Viton® Fluoroelastomer Tubing (Shore A60), 6" Lg. of 3/16" ID Viton® Fluoroelastomer Tubing (Shore A60)	43045K217	000000	43045K122	00000
						22.8 (3/16") 38 (1/4")	15	500	32 to 122	Fractional	0.52	5"	5"	7"	6" Lg. of 1/4" ID Viton® Fluoroelastomer Tubing (Shore A60), 6" Lg. of 3/16" ID Viton® Fluoroelastomer Tubing (Shore A60)	43045K222	000000	43045K127	00000
						45.6 (3/16") 76 (1/4")	15	200	32 to 122	Fractional	0.65	5"	5"	7"	6" Lg. of 1/4" ID Viton® Fluoroelastomer Tubing (Shore A60), 6" Lg. of 3/16" ID Viton® Fluoroelastomer Tubing (Shore A60)	43045K223	000000	43045K127	00000
						228 (3/16") 380 (1/4")	15	50	32 to 122	Fractional	1.74	5"	5"	7"	6" Lg. of 1/4" ID Viton® Fluoroelastomer Tubing (Shore A60), 6" Lg. of 3/16" ID Viton® Fluoroelastomer Tubing (Shore A60)	43045K224	000000	43045K127	00000


						120V AC, Single Phase—Plug In







										ABS and Tygon Wetted Parts Peristaltic Pumps

										0.02 (1/32") 0.07 (1/16") 0.25 (1/8")	30	300	32 to 122	Fractional	0.03	5 1/2"	3 1/4"	3 3/4"	4 1/2" Lg. of 1/16" ID Tygon Tubing (Shore A60), 4 1/2" Lg. of 1/32" ID Tygon Tubing (Shore A60), 4 1/2" Lg. of 1/8" ID Tygon Tubing (Shore A60)	43045K111	000000	43045K116	00000


										0.11 (1/32") 0.34 (1/16") 1.25 (1/8")	30	300	32 to 122	Fractional	0.03	5 1/2"	3 1/4"	3 3/4"	4 1/2" Lg. of 1/16" ID Tygon Tubing (Shore A60), 4 1/2" Lg. of 1/32" ID Tygon Tubing (Shore A60), 4 1/2" Lg. of 1/8" ID Tygon Tubing (Shore A60)	43045K112	000000	43045K116	00000
										0.87 (1/16") 3.53 (1/8") 6.84 (3/16")	30	500	32 to 122	Fractional	0.03	5 1/2"	3 1/4"	3 3/4"	5 1/2" Lg. of 1/16" ID Tygon Tubing (Shore A60), 5 1/2" Lg. of 1/8" ID Tygon Tubing (Shore A60), 6" Lg. of 3/16" ID Tygon Tubing (Shore A60)	43045K117	000000	43045K122	00000
										22.8 (3/16") 38 (1/4")	15	1,000	32 to 122	Fractional	0.52	7"	5"	5"	7" Lg. of 1/4" ID Tygon Tubing (Shore A60), 7" Lg. of 3/16" ID Tygon Tubing (Shore A60)	43045K123	000000	43045K127	00000

Replacement Pump Intake Tubes

		Each
For Polypropylene and Tygon Wetted Parts Material



	0.06 to 0.34	43045K229	000000


	0.24 to 1.25	43045K231	00000
	0.87 to 1.75	43045K234	00000
	3.53 to 7.07	43045K235	00000
	6.84 to 13.68	43045K236	00000
	22.8 to 228	43045K241	00000
	38 to 380	43045K242	00000


	For PVDF and Viton® Fluoroelastomer Wetted Parts Material



			0.02 to 0.11	43045K213	00000


			0.06 to 0.34	43045K214	00000
			0.24 to 1.25	43045K215	00000
			0.87 to 1.75	43045K218	00000
			3.53 to 7.07	43045K219	00000
			6.84 to 13.68	43045K221	00000
			22.8 to 228	43045K225	00000
			38 to 380	43045K226	00000


			For ABS and Tygon Wetted Parts Material



					0.02 to 0.11	43045K113	00000


					0.06 to 0.34	43045K114	00000
					0.24 to 1.25	43045K115	00000
					0.87	43045K118	00000
					3.53	43045K119	00000
					6.84	43045K121	00000
					22.8	43045K124	00000
					38	43045K125	00000

Compact Constant-Flow-Rate Gear Pumps for Water and Oil

Designed to fit into small equipment, these pumps have miniature gears and a fractional horsepower motor for low-flow applications. Pumps are gravity fed and require an elevated liquid source to fully fill the pump before turning on. Do not run dry or use with solids.

Note: If flow control is needed, place valves or reducers on the discharge side; never restrict the inlet of a pump with a valve or reducer

								Intake (NPT)			Discharge (NPT)			Overall
	Max. Flow Rate	Max. ft. of Head, ft.	Max. Pressure, psi	Max. Viscosity, cP	Temp. Range, ° F	Power	Current	Connection	Gender	For Tube ID	Connection	Gender	For Tube ID	Lg.	Wd.	Ht.		Each
120V AC, Single Phase—With Thermal Overload Protection







				Hardwire

				0.43 gpm (55 fl oz/min)	28	20	800	10 to 180	Fractional	1.5 amp	Barbed	Male	3/16"	Barbed	Male	3/16"	4 3/8"	3"	3 3/4"	8220K41	0000000


				240V AC, Single Phase—With Thermal Overload Protection







								Hardwire

								0.43 gpm (55 fl oz/min)	28	20	800	10 to 180	Fractional	1.5 amp	Barbed	Male	3/16"	Barbed	Male	3/16"	4 3/8"	3"	3 3/4"	8220K42	000000

Ultra-Quiet Circulation Pumps for Water

Instead of a fan-cooled motor, these pumps have an integrated motor that's cooled by the liquid being pumped for virtually silent operation and a long service life. Also known as canned motor pumps, they're commonly used in chiller systems and aquariums. They can be mounted horizontally or vertically, but the motor must be below the impeller. Pumps are gravity fed and require an elevated liquid source to fully fill the pump before turning on. Do not run dry or use with solids.

Note: If flow control is needed, place valves or reducers on the discharge side; never restrict the inlet of a pump with a valve or reducer.

					Temp., ° F						Overall
	Max. Flow Rate, gpm	Flow Rate @ 10 ft. of Head, gpm	Max. ft. of Head, ft.	Max. Pressure, psi	Min.	Max.	Power	Current	Intake Connection Type	Discharge Connection Type	Lg.	Wd.	Ht.		Each
120V AC, Single Phase—With Thermal Overload Protection







				Hardwire—1 cP Maximum Viscosity

				11	8	19	29	40	140	Fractional	0.57 amp	3/4 Male NPT	3/4 Male NPT	6"	4 3/8"	4 7/8"	9907T401	0000000




						Plug In—1 cP Maximum Viscosity

						11	8	23	29	40	140	Fractional	0.52 amp	3/4 Male NPT	3/4 Male NPT	6"	4 3/8"	4 7/8"	9907T302	000000

Easy-Maintenance Inline Circulation Pumps for Water

A detachable motor assembly allows you to leave these pumps inline while servicing or repairing the motor. The motor is open dripproof (ODP) for use in clean, dry, and well-ventilated environments. Install these pumps directly in your pipeline for applications such as hot-water circulation and hydronic heating and cooling. Mount horizontally or vertically with the included pipe connectors. Do not run dry or use with solids.

Note: If flow control is needed, place valves or reducers on the discharge side; never restrict the inlet of a pump with a valve or reducer.

			Temp.						Overall
	Max. Flow Rate, gpm	Max. ft. of Head, ft.	Min.	Max., ° F	Power	Current	Intake Connection Type	Discharge Connection Type	Lg.	Wd.	Ht.		Each
120V AC, Single Phase—With Thermal Overload Protection







				Hardwire—1 cP Maximum Viscosity

				33	8	Not Rated	225	Fractional	1.75 amp	3/4 Female NPT	3/4 Female NPT	14 7/8"	5"	6 3/8"	6769K26	0000000


				33	8	Not Rated	225	Fractional	1.75 amp	1 Female NPT	1 Female NPT	14 7/8"	5"	6 3/8"	6769K23	000000
				33	8	Not Rated	225	Fractional	1.75 amp	1 1/4 Female NPT	1 1/4 Female NPT	14 7/8"	5"	6 3/8"	6769K25	000000
				33	8	Not Rated	225	Fractional	1.75 amp	1 1/2 Female NPT	1 1/2 Female NPT	14 7/8"	5"	6 3/8"	6769K24	000000