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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 |
| 34 | 26 | 17 | 5 | 34 | 1 | 1/6 | 2 | 3/4 | Female | NPT | 3/4 | Female | NPT | 7 3/4" | 6 1/2" | 6" | 2 | 1/2" | 00000000 | 000000 |
| 34 | 26 | 17 | 5 | 34 | 1 | 1/6 | 2 | 1 | Female | NPT | 1 | Female | NPT | 7 3/4" | 6 1/2" | 6" | 2 | 1/2" | 00000000 | 000000 |
| 34 | 26 | 17 | 5 | 34 | 1 | 1/6 | 2 | 1 1/4 | Female | NPT | 1 1/4 | Female | NPT | 7 3/4" | 6 1/2" | 6" | 2 | 1/2" | 00000000 | 000000 |
| 34 | 26 | 17 | 5 | 34 | 1 | 1/6 | 2 | 1 1/2 | Female | NPT | 1 1/2 | Female | NPT | 7 3/4" | 6 1/2" | 6" | 2 | 1/2" | 00000000 | 000000 |
240V AC, Single Phase | ||||||||||||||||||||
Hardwire | ||||||||||||||||||||
| 34 | 26 | 17 | 5 | 34 | 1 | 1/6 | 1.06 | 3/4 | Female | NPT | 3/4 | Female | NPT | 7 1/2" | 6 1/2" | 6" | 2 | 1/2" | 00000000 | 000000 |
| 34 | 26 | 17 | 5 | 34 | 1 | 1/6 | 1.06 | 1 | Female | NPT | 1 | Female | NPT | 7 1/2" | 6 1/2" | 6" | 2 | 1/2" | 00000000 | 000000 |
| 34 | 26 | 17 | 5 | 34 | 1 | 1/6 | 1.06 | 1 1/4 | Female | NPT | 1 1/4 | Female | NPT | 7 1/2" | 6 1/2" | 6" | 2 | 1/2" | 00000000 | 000000 |
| 34 | 26 | 17 | 5 | 34 | 1 | 1/6 | 1.06 | 1 1/2 | Female | NPT | 1 1/2 | Female | NPT | 7 1/2" | 6 1/2" | 6" | 2 | 1/2" | 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 | |||||||||||||||||||
| 4 | __ | __ | 4.3 | 150 | 1 | 35° to 250° | 1/100 | 0.5 | 1/2 | Male | NPT | 1/2 | Male | NPT | 5 3/8" | 3 3/8" | 6 5/8" | 0000000 | 0000000 |
| 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 | 000000 |
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 |
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.
Pumps | ||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Flow Rate, gpm | Intake | Discharge | Overall | Required Pipe Connectors | ||||||||||||||
| Max. Flow Rate, gpm | @ 30 ft. of Head | @ 40 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 | Pair | ||
120/208-240V AC, Single Phase—With Thermal Overload Protection | ||||||||||||||||||
Hardwire | ||||||||||||||||||
| 100 | 71 | 47 | 45 | 145 | 1 | 3/4 | 9.6/5.3-4.8 | 1 1/2 | NPT | 1 1/2 | NPT | 9 1/4" | 11 1/2" | 17 3/4" | 0000000 | 000000000 | 00000000 | 000000 |
| 150 | 122 | 90 | 46 | 145 | 1 | 1 1/2 | 17/9.5-8.6 | 2 | NPT | 2 | NPT | 9 3/4" | 14" | 20 1/2" | 0000000 | 00000000 | 0000000 | 000000 |
208-240/460V AC, Three Phase—Without Thermal Overload Protection | ||||||||||||||||||
Hardwire | ||||||||||||||||||
| 100 | 71 | 47 | 45 | 145 | 1 | 3/4 | 2.4-2.3/1.2 | 1 1/2 | NPT | 1 1/2 | NPT | 8 5/8" | 11 1/2" | 15 7/8" | 0000000 | 00000000 | 00000000 | 00000 |
| 150 | 122 | 90 | 46 | 145 | 1 | 1 1/2 | 4.7-4.6/2.3 | 2 | NPT | 2 | NPT | 8 1/2" | 14" | 17 3/8" | 0000000 | 00000000 | 0000000 | 000000 |
| 240 | 188 | 135 | 48 | 145 | 1 | 3 | 8.4-7.7/3.9 | 3 | NPT | 3 | NPT | 8 3/8" | 19" | 24 1/8" | 0000000 | 00000000 | 0000000 | 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.
Intake | Discharge | Overall | |||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Max. Flow Rate, gpm | Flow Rate @ 10 ft. of Head, gpm | Max. ft. of Head | Max. Temp., °F | Max. Viscosity, cP | 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 | |||||||||||||||||
| 33 | __ | 8 | 225° | 1 | Subfractional | 1.75 | 3/4 | Female | NPT | 3/4 | Female | NPT | 14 7/8" | 5" | 6 3/8" | 0000000 | 0000000 |
| 33 | __ | 8 | 225° | 1 | Subfractional | 1.75 | 1 | Female | NPT | 1 | Female | NPT | 14 7/8" | 5" | 6 3/8" | 0000000 | 000000 |
| 33 | __ | 8 | 225° | 1 | Subfractional | 1.75 | 1 1/4 | Female | NPT | 1 1/4 | Female | NPT | 14 7/8" | 5" | 6 3/8" | 0000000 | 000000 |
| 33 | __ | 8 | 225° | 1 | Subfractional | 1.75 | 1 1/2 | Female | NPT | 1 1/2 | Female | NPT | 14 7/8" | 5" | 6 3/8" | 0000000 | 000000 |
| 75 | 22 | 10 | 225° | 1 | 1/6 | 1.9 | 1 | Female | NPT | 1 | Female | NPT | 15 3/8" | 5 1/4" | 8 1/2" | 0000000 | 00000000 |
| 75 | 22 | 10 | 225° | 1 | 1/6 | 1.9 | 1 1/4 | Female | NPT | 1 1/4 | Female | NPT | 15 3/8" | 5 1/4" | 8 1/2" | 0000000 | 00000000 |
| 75 | 22 | 10 | 225° | 1 | 1/6 | 1.9 | 1 1/2 | Female | NPT | 1 1/2 | Female | NPT | 15 3/8" | 5 1/4" | 8 1/2" | 0000000 | 00000000 |