1/8 hp Pumps | McMaster-Carr

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	Voltage Voltage

120V AC

240V AC

460V AC

	Maximum Flow Rate Maximum Flow Rate

600 gph @ 1
ft. of head

	Power Power	Show

1/8 hp

	Power Power	Hide

	For Use With For Use With

	Discharge Pipe Size Discharge Pipe Size

	Power Source Power Source

Electric

	Flow Rate @ 10 ft. of Head Flow Rate @ 10 ft. of Head

	Phase Phase

Single

Three

	Electrical Connection Type Electrical Connection Type

Hardwire

Plug

	Intake Pipe Size Intake Pipe Size

	Maximum Pressure Maximum Pressure

	Pump Type Pump Type

Centrifugal

Drum

Vacuum

	Duty Cycle Duty Cycle

Continuous

Intermittent

	Current Current

	Maximum Temperature Maximum Temperature

100° to 149° F

150° to 199° F

200° to 249° F

	Housing Material Housing Material

	Maximum Feet of Head Maximum Feet of Head

Less than 100 ft.

	Overall Length Overall Length

	Intake Connection Type Intake Connection Type

Pipe

Tube

Inlet

	Intake Connection Style Intake Connection Style

Barbed

Open

Threaded

	Pump Style Pump Style

Circulating

	RoHS (Restriction of Hazardous Substances) RoHS (Restriction of Hazardous Substances)

RoHS Compliant

RoHS Compliant with
Exemptions

	REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) REACH (Registration, Evaluation, Authorization and Restriction of Chemicals)

REACH Compliant

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29 Products

How to Prime Your Pump

How to Determine Feet of Head

About Process Pumps

About Vacuum Pumps

About Drum Pumps

Low-Maintenance Plastic Circulation Pumps for Water and Coolants

Eliminate seal wear and leakage with pumps that use magnets to turn the impeller. They’re often used with electroplating and photographic solutions. 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.

Pumps With Pipe Connections

With Pipe Connections

	Flow Rate, gpm								Intake			Discharge			Overall
Max. Flow Rate, gpm	@ 10 ft. of Head	@ 20 ft. of Head	Max. ft. of Head	Max. Pressure, psi	Max. Viscosity, cP	Temp. Range, °F	hp	Current, A	Pipe Size	Gender	Thread Type	Pipe Size	Gender	Thread Type	Lg.	Wd.	Ht.		Each
120V AC, Single Phase—With Thermal Overload Protection
Plug
15	12	8	34.6	15	20	35° to 150°	1/8	2.1	1/2	Female	NPT	1/2	Male	NPT	8 3/8"	5 1/2"	5 5/8"	0000000	0000000
18	14	8	27.5	11	20	35° to 150°	1/8	2	1	Female	NPT	1/2	Male	NPT	8 3/4"	5 1/2"	5 1/2"	0000000	000000

Harsh-Environment Low-Maintenance Plastic Circulation Pumps for Water and Coolants

These pumps have a totally enclosed fan-cooled (TEFC) motor for use in dusty, dirty, and damp environments. The impeller is turned with magnets to eliminate seal wear and leakage for a long service life. Pumps are often used with electroplating and photographic solutions. They 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.

	Flow Rate, gpm							Intake (NPT)		Discharge (NPT)		Overall
Max. Flow Rate, gpm	@ 10 ft. of Head	@ 20 ft. of Head	Max. ft. of Head	Max. Pressure, psi	Max. Viscosity, cP	hp	Current, A	Pipe Size	Gender	Pipe Size	Gender	Lg.	Wd.	Ht.		Each
120/240V AC, Single Phase—With Thermal Overload Protection
Plug
20	17	11	29.3	10	20	1/8	3/1.4	1	Female	1/2	Male	11 1/4"	5 1/4"	7 3/8"	0000000	0000000

Adjustable-Flow Inline Circulation Pumps for Water

Accommodate performance changes in your system with a three-speed switch that adjusts flow rate. Install these pumps directly in your pipeline for applications such as hot-water circulation and hydronic heating and cooling. They have an open dripproof (ODP) motor for use in clean, dry, and well-ventilated environments. Mount horizontally 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.

Pumps with 304 stainless steel housing are lead free.

Flow Rate, gpm (Speed No.)							Pipe Size (Female, NPT)		Overall
Max.	@ 10 ft. of Head	Current, A (Speed No.)	Flow Adjustment Rate	Max. ft. of Head	Max. Viscosity, cP	hp	Intake	Discharge	Lg.	Wd.	Ht.		Each
120V AC, Single Phase—Without Thermal Overload Protection
Cast Iron Housing—Hardwire
7 (1), 13 (2), 18 (3)	2 (1), 6 (2), 9 (3)	0.8 (1), 0.6 (2), 0.5 (3)	± 10%	18	1	1/8	1	1	6"	5"	6 3/8"	0000000	0000000
7 (1), 13 (2), 18 (3)	2 (1), 6 (2), 9 (3)	0.8 (1), 0.6 (2), 0.5 (3)	± 10%	18	1	1/8	1 1/4	1 1/4	6"	5"	6 3/8"	00000000	000000
7 (1), 13 (2), 18 (3)	2 (1), 6 (2), 9 (3)	0.8 (1), 0.6 (2), 0.5 (3)	± 10%	18	1	1/8	1 1/2	1 1/2	6"	5"	6 3/8"	0000000	000000
304 Stainless Steel Housing—Hardwire
7 (1), 13 (2), 18 (3)	2 (1), 6 (2), 9 (3)	0.8 (1), 0.6 (2), 0.5 (3)	± 10%	18	1	1/8	1	1	6"	5"	6 3/8"	00000000	000000
7 (1), 13 (2), 18 (3)	2 (1), 6 (2), 9 (3)	0.8 (1), 0.6 (2), 0.5 (3)	± 10%	18	1	1/8	1 1/4	1 1/4	6"	5"	6 3/8"	00000000	000000
7 (1), 13 (2), 18 (3)	2 (1), 6 (2), 9 (3)	0.8 (1), 0.6 (2), 0.5 (3)	± 10%	18	1	1/8	1 1/2	1 1/2	6"	5"	6 3/8"	00000000	000000

Compact Inline Circulation Pumps for Water

Use these pumps in pipelines with limited clearance. Install directly in your pipeline for applications such as hot-water circulation and hydronic heating and cooling. Pumps mount horizontally or vertically with required pipe connectors. The motor cannot face downward; it’s cooled by the water being pumped. 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.

	Flow Rate, gpm							Intake			Discharge			Overall			Mounting
Max. Flow Rate, gpm	@ 10 ft. of Head	@ 20 ft. of Head	@ 30 ft. of Head	Max. ft. of Head	Max. Viscosity, cP	hp	Current, A	Pipe Size	Gender	Thread Type	Pipe Size	Gender	Thread Type	Lg.	Wd.	Ht.	No. of Holes	Hole Dia.		Each
120V AC, Single Phase
Hardwire
31	22	13	5	32	1	1/8	1.76	3/4	Female	NPT	3/4	Female	NPT	7 5/8"	6 1/2"	6"	2	1/2"	00000000	0000000
31	22	13	5	32	1	1/8	1.76	1	Female	NPT	1	Female	NPT	7 5/8"	6 1/2"	6"	2	1/2"	0000000	000000
31	22	13	5	32	1	1/8	1.76	1 1/4	Female	NPT	1 1/4	Female	NPT	7 5/8"	6 1/2"	6"	2	1/2"	00000000	000000
31	22	13	5	32	1	1/8	1.76	1 1/2	Female	NPT	1 1/2	Female	NPT	7 5/8"	6 1/2"	6"	2	1/2"	0000000	000000

Immersion Circulation Pumps for Coolants

Commonly used in machine tool coolant tanks, these pumps have an intake that can be completely submerged in liquid. A universal mounting plate fits machine tools from manufacturers such as Fuji, Mitsubishi, Toshiba, Hitachi, and Yasukawa. Motor is totally enclosed with sealed bearings for use in dusty, dirty, and damp environments. Pumps are gravity fed and require an elevated liquid source. They can 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.

Pumps
	Flow Rate, gpm							Discharge (NPT)		Overall						Replacement Impellers
Max. Flow Rate, gpm	@ 10 ft. of Head	Max. ft. of Head	Max. Pressure, psi	Max. Viscosity, cP	hp	Current, A	Intake Connection Type	Pipe Size	Gender	Lg.	Wd.	Ht.	Shaft Ht.		Each		Each
120/240V AC, Single Phase—Without Thermal Overload Protection
Hardwire
10	5	13	5	90	1/8	0.7/0.4	Open Inlet	3/8	Female	5 1/2"	3 1/2"	11 3/4"	6"	00000000	0000000	0000000	000000
240/460V AC, Three Phase—Without Thermal Overload Protection
Hardwire
10	5	13	5	90	1/8	0.3/0.2	Open Inlet	3/8	Female	5 1/2"	3 1/2"	11 3/4"	6"	00000000	000000	0000000	00000

Remote-Mount Circulation Pumps for Water and Coolants

Use when space is limited—these pumps connect to a pipe coming from your tank so you can place the pump in another location. Mount above or below the liquid level. Pumps are self-priming after you fill the pump chamber with liquid. As liquid in the chamber is expelled, a suction force is created which allows the pump to draw liquid upward.

Note: Pumps must be filled with liquid before use. They need a constant flow of liquid and cannot run dry. 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.

Pumps
	Flow Rate, gpm						Intake (NPT)		Discharge (NPT)		Overall					Replacement Impellers
Max. Flow Rate, gpm	@ 10 ft. of Head	Max. ft. of Head	Max. Pressure, psi	Max. Viscosity, cP	hp	Current, A	Pipe Size	Gender	Pipe Size	Gender	Lg.	Wd.	Ht.		Each		Each
120/240V AC, Single Phase—Without Thermal Overload Protection
Hardwire
10	5	13	5	90	1/8	0.7/0.4	3/8	Female	3/8	Female	6 1/2"	5 1/2"	6 7/8"	00000000	0000000	0000000	000000
240/460V AC, Three Phase—Without Thermal Overload Protection
Hardwire
10	5	13	5	90	1/8	0.3/0.2	3/8	Female	3/8	Female	6 1/2"	5 1/2"	6 7/8"	00000000	000000	0000000	00000

Maintenance Kit for Pumps with 10 gpm or 20 gpm Max. Flow Rate

00000000

Each

000000

Precise-Flow Electric Drum Pumps for Water, Oil, and Chemicals

For accurate dispensing in extremely low-flow applications, adjust flow in 2% increments. These pumps are compatible with chemicals such as ammonia and etching and cleaning solutions.

Pumps
				Temp. Range, °F						Intake		Discharge					Repair Parts
Flow Rate, gpm	Discharge Pressure, psi	For Container Size, gal.	Max. Viscosity, cP	Min.	Max.	Horsepower	Current, A	For Drum Opening Size	Includes	Tube OD	Tube Lg.	Tube ID	Tube OD	Tube Lg.		Each
120V AC, Single Phase
Plug
0.001-0.01	200	55	600	35°	140°	1/8 hp	0.5	2"	Drum Connector	2"	36"	3/16"	1/4"	120"	0000000	0000000	0000000
0.025-0.1	40	55	350	35°	140°	1/8 hp	0.5	2"	Drum Connector	2"	36"	3/16"	1/4"	120"	0000000	000000	0000000

Electric Drum Pumps with Nozzle for Fuel

Pump fuel in hazardous environments with flammable gases. Pumps are UL listed for Class I, Divisions 1 and 2, Group D.

Always bond and ground your application for static control. For more information about bonding and grounding, see Sections 1910.106 and 1910.107 of the Federal OSHA Code or see bonding and grounding equipment.

Style A pumps have a circuit breaker to prevent overload. Pumps with automatic shut-off nozzle turn off when the tank is full.

Style A

			Temp. Range, °F						Intake		Discharge
Flow Rate, gpm	Discharge Pressure, psi	Max. Viscosity, cP	Min.	Max.	Horsepower	Current, A	Max. Lift, ft.	For Drum Opening Size	Tube OD	Tube Lg.	Hose ID	Hose Lg., ft.	Hose OD	Nozzle Type	Electrical Connection Type		Each
120V AC, Single Phase—With Thermal Overload Protection
12	15	10	-20°	125	1/8 hp	1.5	4.8	2 NPT	1 7/16"	22"-40"	3/4"	12	1 5/32"	Automatic Shut-Off	Hardwire	0000000	0000000
12	15	10	-20°	125	1/8 hp	1.5	5.5	2 NPT	1 7/16"	22"-40"	3/4"	12	1 5/32"	Manual Shut-Off	Hardwire	0000000	000000

Portable Oil-Free Electric Vacuum Pumps

These pumps weighs only 16 pounds and have a handle, so they're convenient for on-site sampling, atomizing, and vacuum filtration. They're also for use in pressure applications up to 60 psi. Since they don't require lubrication, there’s no risk of oil contamination. Maximum flow rate is the rate at which air is pumped before a vacuum is created. Flow rate steadily decreases as the pump generates the vacuum. The larger the tank, the longer it will take to form a vacuum. Tube and fitting ID will also affect flow.

Repair kits include filter/muffler components, a gasket, a leaf valve, limiters, and an O-ring.

Pumps
							Intake		Discharge		Overall					Repair Kits
Max. Vacuum, in. of Hg	Max. Flow Rate, cfm	Max. Pressure, psi	Temp. Range, °F	Volume, dBA	Horsepower	Current, A	Tube Connection Type	For Tube ID	Tube Connection Type	For Tube ID	Lg.	Wd.	Ht.		Each		Each
120V AC, Single Phase—With Thermal Overload Protection
NEMA 5-15 Plug
25.5	1.1	60	35° to 100°	65	1/8 hp	4.2	Barbed	3/8"	Barbed	3/8"	7 3/4"	5 7/8"	11"	0000000	0000000	0000000	000000

Flood Coolant Dispensers with Reservoir

These dispensers have a reservoir for recirculating coolant. They provide a constant flow of coolant, so they dissipate heat more efficiently than mist and droplet dispensers, making them suitable for cooling long machine cycles. Coolant strainers prevent debris from getting into the recirculated coolant.

Maximum flow rate and shut-off height are for water-soluble oil. Shut-off height is the maximum height to which the water-soluble oil can be pumped.

					Nozzle				Reservoir
	Cap., gal.	Max. Flow Rate	Max. Pressure, psi	Coolant Outlet Hose Lg.	Lg.	Type	Nozzle Material	O'all Ht.	Wd.	Dp.	Reservoir Material	Shut-Off Ht., ft.	For Max. SSU Viscosity Grade	Voltage	Features		Each
For Use With Coolant, Water
C	6	600 gph @ 1 ft. of head	5.6	4 ft.	15"	Flexible	Steel	15"	18"	9 1/2"	Steel	14	500	120V AC	Adjustable Flow, Coolant Strainer, Baffle, On/Off Valve	0000000	0000000
C	10	600 gph @ 1 ft. of head	5.6	4 ft.	15"	Flexible	Steel	16 1/2"	24"	9 3/4"	Steel	14	500	120V AC	Adjustable Flow, Coolant Strainer, On/Off Valve	0000000	000000