1/25 hp Pumps | McMaster-Carr

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	For Use With For Use With

Deionized Water

Ethylene Glycol

Water

	Maximum Flow Rate Maximum Flow Rate

	Voltage Voltage

120V AC

240V AC

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

	Discharge Pipe Size Discharge Pipe Size

	Intake Pipe Size Intake Pipe Size

	Duty Cycle Duty Cycle

Continuous

	Power Source Power Source

Electric

	Intake Connection Style Intake Connection Style

Barbed

Threaded

	Maximum Pressure Maximum Pressure

7 psi

8 psi

150 psi

	Electrical Connection Type Electrical Connection Type

Hardwire

Plug

	Maximum Feet of Head Maximum Feet of Head

Less than 100 ft.

	Maximum Temperature Maximum Temperature

150° to 199° F

200° to 249° F

250° F or greater

	Minimum Temperature Minimum Temperature

35° F

40° F

	Power Power	Show

1/25 hp

	Power Power	Hide

	Motor Enclosure Type Motor Enclosure Type

Totally Enclosed Fan Cooled
(TEFC)

Open Dripproof (ODP)

Open

Totally Enclosed

	Pump Type Pump Type

Centrifugal

	Pump Style Pump Style

Circulating

	Housing Material Housing Material

Bronze

Iron

Plastic

	Phase Phase

Single

	Frequency Frequency

60 Hz

	Discharge Connection Type Discharge Connection Type

Pipe

Tube

	Intake Connection Type Intake Connection Type

12 Products

How to Prime Your Pump

How to Determine Feet of Head

About Process 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 Tube Connections (Front Intake)

With Tube Connections (Front Intake)

	Flow Rate, gpm								Intake			Discharge			Overall
Max. Flow Rate, gpm	@ 5 ft. of Head	@ 10 ft. of Head	Max. ft of Head	Max. Pressure, psi	Max. Viscosity, cP	Temp. Range, °F	hp	Current, A	Tube Connection Type	Gender	For Tube ID	Tube Connection Type	Gender	For Tube ID	Lg.	Wd.	Ht.		Each
120V AC, Single Phase—With Thermal Overload Protection
Plug
8	7	5	19	8	20	35° to 150°	1/25	1.7	Barbed	Male	5/8"	Barbed	Male	5/8"	8 1/4"	3 1/2"	5 1/4"	0000000	0000000

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	Max. ft. of Head	Max. Pressure, psi	Max. Viscosity, cP	hp	Current, A	Pipe Size	Gender	Pipe Size	Gender	Lg.	Wd.	Ht.		Each
120V AC, Single Phase—With Thermal Overload Protection
Plug
10	6	16.3	7	20	1/25	1.3	1/2	Female	1/2	Male	9"	4"	5"	00000000	0000000

High-Flow Inline Circulation Pumps for Water

A high-horsepower motor handles four times the flow and twice the pressure of other inline circulation pumps. Install these pumps directly in your pipeline for applications such as hot-water circulation and hydronic heating and cooling. Mount horizontally or vertically. 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
Max. Flow Rate, gpm	@ 10 ft. of Head	Max. ft. of Head	Max. Pressure, psi	Max. Viscosity, cP	hp	Current, A	Pipe Size	Thread Type	Pipe Size	Thread Type	Lg.	Wd.	Ht.		Each
120V AC, Single Phase—Without Thermal Overload Protection
Hardwire
22	8	15	150	1	1/25	0.8	1	NPT	1	NPT	5 5/8"	4 7/8"	6 3/8"	00000000	0000000
22	8	15	150	1	1/25	0.8	1 1/4	NPT	1 1/4	NPT	5 5/8"	4 7/8"	6 3/8"	00000000	000000
22	8	15	150	1	1/25	0.8	1 1/2	NPT	1 1/2	NPT	5 5/8"	4 7/8"	6 3/8"	00000000	000000

Extended-Life Inline Circulation Pumps for Water

Eliminate seal wear and leakage—these pumps have magnets that turn the impeller for a long service life. Install them directly in your pipeline for applications such as hot-water circulation and hydronic heating and cooling. Mount vertically or horizontally; the electrical conduit box must be placed on the bottom. 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.

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

	Flow Rate, gpm								Intake			Discharge			Overall
Max. Flow Rate, gpm	@ 5 ft. of Head	@ 10 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
Hardwire
6	5	3	12.1	150	1	35° to 250°	1/25	1.4	1/2	Male	NPT	1/2	Male	NPT	5 3/8"	3 3/8"	7 3/4"	0000000	0000000

High-Flow Extended-Life Inline Circulation Pumps for Water

These pumps have higher flow rate than other inline circulation pumps and are cooled by the liquid being pumped to extend the life of the motor. Install them directly in your pipeline for applications such as hot-water circulation and solar heating. Pumps have an open dripproof (ODP) motor for use in clean, dry, and well-ventilated environments. Mount horizontally with required pipe connectors (sold separately). 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.

To Order: For the required pipe connectors, please specify pipe size of 3/4, 1, 1 1/4, or 1 1/2.

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

Pumps
								Intake		Discharge		Overall					Required Pipe Connectors
Max. Flow Rate, gpm	Flow Rate @ 10 ft. of Head, gpm	Max. ft. of Head	Max. Pressure, psi	Max. Viscosity, cP	Temp. Range, °F	hp	Current, A	Gender	Thread Type	Gender	Thread Type	Lg.	Wd.	Ht.		Each		Pair
120V AC, Single Phase—Without Thermal Overload Protection
Hardwire
22	8	15	150	1	40° to 230°	1/25	0.8	Female	NPT	Female	NPT	5 5/8"	4 7/8"	6 3/8"	0000000	0000000	000000	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	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
240V AC, Single Phase
Hardwire
15	8	15	1	1/25	0.46	3/4	Female	NPT	3/4	Female	NPT	6"	6 3/8"	4 3/4"	2	1/2"	00000000	0000000
15	8	15	1	1/25	0.46	1	Female	NPT	1	Female	NPT	6"	6 3/8"	4 3/4"	2	1/2"	00000000	000000
15	8	15	1	1/25	0.46	1 1/4	Female	NPT	1 1/4	Female	NPT	6"	6 3/8"	4 3/4"	2	1/2"	00000000	000000
15	8	15	1	1/25	0.46	1 1/2	Female	NPT	1 1/2	Female	NPT	6"	6 3/8"	4 3/4"	2	1/2"	00000000	000000