How to Prime Your Pump
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How to Determine Feet of Head
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About Process Pumps
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Any-Direction Constant-Flow-Rate Pumps for Water
Mount these pumps in any position, even upside down. Pumps have a subfractional horsepower motor rated for intermittent use (return to room temperature before restarting). Also known as diaphragm pumps, 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.
Battery-operated pumps operate on a 12-volt battery. They are commonly used with agricultural sprayers and washers.
Pumps with a pressure switch automatically shut off the pump at the maximum pressure.
For technical drawings and 3-D models, click on a part number.
Intake | Discharge | Overall | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Max. Flow Rate, gpm | Flow Rate @ Pressure | Max. ft. of Head | Max. Pressure, psi | Max. Temp., °F | Current, A  | Pipe Size | Thread Type | Gender | Pipe Size | Thread Type | Gender | Max. Self-Priming Ht., ft. | Lg. | Wd. | Ht. | Each | ||
120V AC, Single Phase—With Thermal Overload Protection and With Pressure Switch | ||||||||||||||||||
Hardwire | ||||||||||||||||||
| A | 1.5 | 1.24 gpm @ 20 psi (46 ft. of head), 1.04 gpm @ 60 psi (138 ft. of head) | 346 | 150 | 170° | 1 | 3/8 | NPT | Female | 3/8 | NPT | Female | 8 | 9 3/8" | 3 3/8" | 4 1/8" | 0000000 | 0000000 |
Plug | ||||||||||||||||||
| A | 1.4 | 1.15 gpm @ 20 psi (46 ft. of head), 0.84 gpm @ 60 psi (138 ft. of head) | 138 | 60 | 130° | 0.57 | 3/8 | NPT | Female | 3/8 | NPT | Female | 8 | 7 5/8" | 3 3/8" | 4 1/4" | 0000000 | 000000 |
| A | 1.6 | 1.32 gpm @ 20 psi (46 ft. of head), 1.07 gpm @ 60 psi (138 ft. of head) | 231 | 100 | 170° | 0.95 | 3/8 | NPT | Female | 3/8 | NPT | Female | 8 | 8 5/8" | 3 3/8" | 4" | 0000000 | 000000 |
| A | 1.7 | 1.52 gpm @ 20 psi (46 ft. of head), 0.03 gpm @ 60 psi (138 ft. of head) | 138 | 60 | 170° | 0.61 | 3/8 | NPT | Female | 3/8 | NPT | Female | 8 | 8 5/8" | 3 3/8" | 4" | 0000000 | 000000 |
| A | 3 | 2.20 gpm @ 20 psi (46 ft. of head) | 104 | 45 | 120° | 0.7 | 1/2 | NPSM | Male | 1/2 | NPSM | Male | 8 | 8 3/4" | 5" | 4 1/2" | 0000000 | 000000 |
120V AC, Single Phase—With Thermal Overload Protection | ||||||||||||||||||
Plug | ||||||||||||||||||
| A | 3.4 | 2.30 gpm @ 20 psi (46 ft. of head) | 92 | 40 | 120° | 1 | 1/2 | NPSM | Male | 1/2 | NPSM | Male | 8 | 7 5/8" | 5" | 4 3/8" | 0000000 | 000000 |
12V DC—With Thermal Overload Protection and With Pressure Switch | ||||||||||||||||||
Hardwire | ||||||||||||||||||
| B | 5.3 | 4.30 gpm @ 20 psi (46 ft. of head), 3.40 gpm @ 60 psi (138 ft. of head) | 120 | 60 | 140° | 17 | 1/2 | NPSM | Male | 1/2 | NPSM | Male | 8 | 10" | 4 15/16" | 4" | 0000000 | 000000 |
12V DC—Without Thermal Overload Protection and With Pressure Switch | ||||||||||||||||||
Hardwire | ||||||||||||||||||
| A | 1.8 | 1.45 gpm @ 20 psi (46 ft. of head), 1.22 gpm @ 60 psi (138 ft. of head) | 231 | 100 | 170° | 8.7 | 3/8 | NPT | Female | 3/8 | NPT | Female | 10 | 8 3/8" | 4" | 4 1/8" | 0000000 | 000000 |
| A | 1.8 | 1.57 gpm @ 20 psi (46 ft. of head), 1.23 gpm @ 60 psi (138 ft. of head) | 138 | 60 | 170° | 7.2 | 3/8 | NPT | Female | 3/8 | NPT | Female | 12 | 8 3/8" | 4" | 4 1/8" | 0000000 | 000000 |
| A | 3 | 2.69 gpm @ 20 psi (46 ft. of head) | 115 | 50 | 170° | 8 | 1/2 | NPSM | Male | 1/2 | NPSM | Male | 8 | 8 5/8" | 5" | 4 1/2" | 0000000 | 000000 |
| A | 3.5 | 2.56 gpm @ 20 psi (46 ft. of head) | 115 | 50 | 130° | 9.9 | 1/2 | NPSM | Male | 1/2 | NPSM | Male | 9 | 8 5/8" | 5" | 4 1/2" | 0000000 | 000000 |
Continuous-Duty Any-Direction Constant-Flow-Rate Pumps for Water and Coolants
Rated for continuous use, this pump is often used to move caustics such as antifreeze and salt water. Mount it in any position, even upside down. Also known as a diaphragm pump, it is typically used for low-flow spraying, draining, and washdown applications. Pump has a pressure switch that automatically shuts off the pump at the maximum pressure. It is self-priming, which means it creates a suction force to draw liquid upward. Pump can run dry and does not require an initial fill, so it’s a good choice for applications without a constant flow of liquid. Do not use with solids.
Intake | Discharge | Overall | |||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Max. Flow Rate, gpm | Flow Rate @ Pressure | Max. Pressure, psi | Max. Viscosity, cP | Max. 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 and Pressure Switch | |||||||||||||||||
Plug | |||||||||||||||||
| 3 | 2.50 gpm @ 20 psi (46 ft. of head) | 40 | 250 | 130° | 3/16 | 1.8 | Barbed | Male | 1/2" | Barbed | Male | 1/2" | 10 7/8" | 5 3/8" | 5 5/8" | 0000000 | 0000000 |
Constant-Flow-Rate Pumps for Water
Also known as gear pumps, these produce a smooth flow of liquid for applications such as cooling engines, powering hydraulic equipment, and extracting liquid from holding tanks. 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. Do not use with solids. Pumps can be used in dusty, dirty, and damp environments.
Pumps that cannot be sold to Canada are restricted by local energy efficiency requirements.
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.
For technical drawings and 3-D models, click on a part number.
Intake (NPT) | Discharge (NPT) | Overall | Chemical Resistance | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Max. Flow Rate, gpm | Discharge Pressure, psi | Max. Viscosity, cP | Temp. Range, °F | hp | Current, A | Pipe Size | Gender | Pipe Size | Gender | Motor Enclosure Type | Lg. | Wd. | Ht. | Cannot Be Sold To | Each | |
115/230V AC, Single Phase—Without Thermal Overload Protection | ||||||||||||||||
Hardwire | ||||||||||||||||
| 2.1 | 150 | 100,000 | 32° to 140° | 1/2 | 7.4/3.7 | 1/4 | Female | 1/4 | Female | Totally Enclosed | 16 1/16" | 8 3/16" | 8" | __ | 0000000 | 000000000 |
| 8.5 | 150 | 100,000 | 32° to 140° | 1 | 12.8/6.4 | 1/2 | Female | 1/2 | Female | Totally Enclosed | 18 1/8" | 9 3/16" | 9" | __ | 0000000 | 00000000 |
230/460V AC, Three Phase—Without Thermal Overload Protection | ||||||||||||||||
Hardwire | ||||||||||||||||
| 10.2 | 150 | 100,000 | 32° to 140° | 1 1/2 | 4.4/2.2 | 1/2 | Female | 1/2 | Female | Totally Enclosed Fan Cooled | 19 13/16" | 9 5/16" | 7 1/4" | Canada | 0000000 | 00000000 |
| 23 | 150 | 100,000 | 32° to 140° | 3 | 8.4/4.2 | 1 | Female | 1 | Female | Totally Enclosed Fan Cooled | 25 1/8" | 10 5/16" | 9 1/16" | Canada | 0000000 | 00000000 |
Constant-Flow-Rate Pumps without Motor for Oil
A cast iron housing and steel gears allow these pumps to be used to dispense oil and fuel such as hydraulic oil and diesel fuel. Select your own motor to tailor them to your application. Use an air or electric motor with a coupling and belt/pulley drive. Also known as gear pumps, they produce a smooth flow of liquid for applications such as engine lubrication. All are self-priming, which means they create a suction force to draw liquid upward and fill the pump chamber. Do not use with solids.
Note: Pumps must be filled with liquid before use. They need a constant flow of liquid and cannot run dry.
For technical drawings and 3-D models, click on a part number.
Required hp | Intake | Discharge | Overall | Shaft | |||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Max. Flow Rate @ 25 psi, gpm | Max. Flow Rate, gpm | Max. ft. of Head | Max. Viscosity, cP | @ 25 psi | @ 100 psi | Pipe Size | Thread Type | Gender | Pipe Size | Thread Type | Gender | Lg. | Wd. | Ht. | Dia. | Lg. | Center-to-Base Lg. | Each | |
| 8.9 | 9 | 462 | 20,000 | 3/4 | 1 | 1/2 | NPT | Female | 1/2 | NPT | Female | 7 1/4" | 3 7/16" | 4 1/2" | 5/8" | 1 9/16" | 3" | 00000000 | 000000000 |
Constant-Flow-Rate Pumps without Motor for Water
These pumps have a bronze housing and gears for use with water. Select your own motor to tailor them to your application. Use a NEMA 56C frame electric motor with a coupling and belt/pulley drive. Also known as gear pumps, they produce a smooth flow of liquid for water delivery. All are self-priming, which means they create a suction force to draw liquid upward and fill the pump chamber. Do not use with solids.
Note: Pumps must be filled with liquid before use. They need a constant flow of liquid and cannot run dry.
For technical drawings and 3-D models, click on a part number.
Required hp | Intake | Discharge | Overall | Shaft | |||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Max. Flow Rate, gpm | Max. Flow Rate @ 25 psi, gpm | Max. Ft. of Head, ft. | Max. Viscosity, cP | @ 25 psi | @ 100 psi | Pipe Size | Thread Type | Gender | Pipe Size | Thread Type | Gender | Lg. | Wd. | Ht. | Dia. | Lg. | Ctr.-to-Base Lg. | Each | |
For 1,725 rpm Max. Motor Speed | |||||||||||||||||||
| 2.1 | 1.8 | 345 | 17,300 | 1/8 | 1/4 | 1/4 | NPT | Female | 1/4 | NPT | Female | 6 3/16" | 2 1/2" | 3" | 1/2" | 1 13/16" | 1 7/8" | 000000 | 0000000 |
| 4.2 | 4 | 345 | 17,300 | 1/4 | 1/2 | 1/4 | NPT | Female | 1/4 | NPT | Female | 5 3/4" | 3" | 3 11/16" | 1/2" | 1 13/16" | 2 3/8" | 0000000 | 000000 |
| 10.6 | 10.2 | 345 | 17,300 | 3/4 | 1 3/4 | 1/2 | NPT | Female | 1/2 | NPT | Female | 6 7/8" | 3 3/4" | 4 1/4" | 5/8" | 2" | 2 3/4" | 0000000 | 000000 |
| 19.8 | 19 | 345 | 17,300 | 1 1/2 | 2 3/4 | 3/4 | NPT | Female | 3/4 | NPT | Female | 7 1/16" | 4 3/8" | 5 1/4" | 5/8" | 2 3/16" | 3 9/16" | 0000000 | 000000 |
| 23.5 | 22.2 | 345 | 17,300 | 1 1/2 | 2 3/4 | 1 | NPT | Female | 1 | NPT | Female | 7 5/16" | 4 5/16" | 5 1/4" | 5/8" | 2 3/16" | 3 9/16" | 0000000 | 000000 |
For 1,750 rpm Max. Motor Speed | |||||||||||||||||||
| 7.2 | 7 | 345 | 17,300 | 3/4 | 1 1/2 | 3/8 | NPT | Female | 3/8 | NPT | Female | 6 9/16" | 3 3/4" | 4 1/4" | 5/8" | 2 1/16" | 2 3/4" | 0000000 | 000000 |
Constant-Flow-Rate Pumps without Motor for Chemicals
With a 316 stainless steel housing and stainless steel gears, these pumps are often used to dispense chemicals such as ethylene glycol, isopropyl alcohol, and nitric acid. Use an electric motor with a coupling and belt/pulley drive. Also known as gear pumps, they produce a smooth flow of liquid. All are self-priming, which means they create a suction force to draw liquid upward and fill the pump chamber. Do not use with solids.
For technical drawings and 3-D models, click on a part number.
Required hp | Intake (NPT) | Discharge (NPT) | Overall | Shaft | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Max. Flow Rate @ 25 psi, gpm | Max. Flow Rate, gpm | Max. ft. of Head | Max. Pressure, psi | Max. Viscosity, cP | @ 25 psi | @ 100 psi | Pipe Size | Gender | Pipe Size | Gender | Lg. | Wd. | Ht. | Dia. | Lg. | Center-to-Base Lg. | Each | |
| 4.3 | 4 | 346.3 | 150 | 20,000 | 1/4 | 3/4 | 1/2 | Female | 1/2 | Female | 6 1/4" | 3" | 3 3/4" | 1/2" | 1 1/4" | 2 5/8" | 00000000 | 000000000 |
| 10.2 | 10 | 346.3 | 150 | 20,000 | 1/2 | 1 1/2 hp | 3/4 | Female | 3/4 | Female | 7 1/2" | 3 3/8" | 4 3/8" | 5/8" | 1 3/4" | 3" | 00000000 | 00000000 |
Self-Priming Circulation Pumps without Motor for Oil
Use these pumps to move lubricating oil such as hydraulic and motor oil. Also known as flexible impeller pumps, they create a suction force that can draw liquid upward to fill the pump chamber when your liquid source is below the pump. The impeller resists clogging and wear. Select a spark-free air motor for hazardous environments or attach an electric motor with a speed reducer or a belt pulley to alter the pump speed.
Repair kits (sold separately) include components such as impellers, O-rings, and seal lips.
Note: Pumps must be filled with liquid before use. They need a constant flow of liquid and cannot run dry.
For technical drawings and 3-D models, click on a part number.
Intake (NPT) | Discharge (NPT) | Shaft | Overall | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Max. Flow Rate, gpm | Max. Ft. of Head, ft. | Max. Pressure, psi | Max. Viscosity | Temp. Range, °F | Required hp | Gender | Pipe Size | Gender | Pipe Size | Dia. | Lg. | Ctr.-to-Base Lg. | Ht. | Lg. | Wd. | Each | |
For 500 rpm-2,100 rpm Motor Speed | |||||||||||||||||
| 11.5 | 50 | 21 | Not Rated | 50° to 180° | 1/3 hp | Female | 1/2 | Female | 1/2 | 5/8" | 1 1/8" | 1 15/16" | 3 13/16" | 4 1/2" | 4 1/8" | 0000000 | 0000000 |
| 25 | 50 | 26 | Not Rated | 50° to 180° | 3/4 hp | Female | 1 | Female | 1 | 5/8" | 2 1/4" | 1 7/8" | 3 9/16" | 6 3/8" | 4 3/4" | 0000000 | 000000 |
Self-Priming Circulation Pumps without Motor for Water
Also known as flexible impeller pumps, these create a suction force that can draw liquid upward to fill the pump chamber when your liquid source is below the pump. The impeller resists clogging and wear. Select a spark-free air motor for hazardous environments or attach an electric motor with a speed reducer or a belt pulley to alter the pump speed.
Repair kits (sold separately) include components such as impellers, O-rings, and seal lips.
Note: Pumps must be filled with liquid before use. They need a constant flow of liquid and cannot run dry.
For technical drawings and 3-D models, click on a part number.
Intake (NPT) | Discharge (NPT) | Overall | Shaft | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Max. Flow Rate, gpm | Max. ft. of Head | Max. Pressure, psi | Max. Viscosity | Temp. Range, °F | Required hp | Gender | Pipe Size | Gender | Pipe Size | Ht. | Lg. | Wd. | Dia. | Lg. | Ctr.-to-Base Lg. | Each | |
For 500 rpm-2,100 rpm Motor Speed | |||||||||||||||||
| 13 | 60 | 26 | Not Rated | 50° to 180° | 1/3 | Female | 1/2 | Female | 1/2 | 3 13/16" | 4 1/2" | 4 1/8" | 5/8" | 1 1/8" | 1 15/16" | 0000000 | 0000000 |
| 27.9 | 60 | 26 | Not Rated | 50° to 180° | 3/4 | Female | 1 | Female | 1 | 3 9/16" | 6 3/8" | 4 3/4" | 5/8" | 2 1/4" | 1 7/8" | 0000000 | 000000 |
Air-Powered Constant-Flow-Rate Pumps
Commonly called piston pumps, these are often used in high-pressure applications, such as hydrostatic testing of pipelines, tanks, and valves. Flow and outlet liquid pressure can be controlled by varying the air pressure. To calculate discharge liquid pressure, multiply the air pressure by the ratio shown in the table. Pumps are self-priming, which means they create a suction force to draw liquid upward to fill the pump chamber.
Note: Pumps must be filled with liquid before use. They need a constant flow of liquid and cannot run dry.
For technical drawings and 3-D models, click on a part number.
Flow Rate, gpm | Air Pressure, psi | Overall | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| @ 0 psi | @ 3,000 psi | Max. ft. of Head | Max. Discharge Pressure, psi | Max. Viscosity, cP | Min. | Max. | Air Consumption, scfm | Air Connection (NPT) | Intake Pipe Connection (NPT) | Discharge Pipe Connection (NPT) | Lg. | Wd. | Ht. | Each | |
86:1 Discharge Liquid to Inlet Air Pressure Ratio | |||||||||||||||
| 0.19 | 0.17 | 28,764 | 12,470 | 100 | 15 | 145 | 20 | 1/4 Female | 3/8 Female | 1/4 Female | 4 5/8" | 4" | 9" | 0000000 | 000000000 |
28:1 Discharge Liquid to Inlet Air Pressure Ratio | |||||||||||||||
| 0.58 | 0.13 | 9,365 | 4,060 | 100 | 15 | 145 | 20 | 1/4 Female | 3/8 Female | 1/4 Female | 4 5/8" | 4" | 9" | 0000000 | 00000000 |
11:1 Discharge Liquid to Inlet Air Pressure Ratio | |||||||||||||||
| 4.76 | __ | 3,679 | 1,595 | 100 | 15 | 145 | 45 | 1/2 Female | 1 Female | 1/2 Female | 10 3/4" | 7" | 12 1/4" | 0000000 | 00000000 |
Harsh-Environment Self-Priming Water-Removal Pumps
This pump has a totally enclosed nonventilated (TENV) motor that is cooled by the liquid being pumped. Also known as a flexible impeller pump, it creates a suction force that can draw liquid upward to fill the pump chamber when your liquid source is below the pump. Mount up to 6 feet above your liquid source. Pump can pass solids up to 1/4" in diameter without clogging, so there’s no need to filter sediment and debris. A handle makes it convenient for on-the-go removal of bilge water, waste oil, and spills. Pump can also be used to cool marine engines and drain liquid from holding tanks.
Note: Pump must be filled with liquid before use. It needs a constant flow of liquid and cannot run dry.
Overall | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Max. Flow Rate, gpm | Max. Ft. of Head, ft. | Max. Solids Dia. | Max. Viscosity, cP | Temp. Range, °F | Horsepower | Current, A | Intake Size | Discharge Size | Ht. | Wd. | Lg. | Each | |
120V AC, Single Phase—With Thermal Overload Protection | |||||||||||||
Plug with 8 ft. Cord | |||||||||||||
| 5 4/5 | 30 | 1/4" | 125 | 60° to 180° | 1/4 hp | 4.2 | 1/2 NPT Female, 3/4 GHT Male | 1/2 NPT Female, 3/4 GHT Male | 9" | 5 5/8" | 7 3/8" | 0000000 | 0000000 |
Drill-Operated Water-Removal Pumps
Convenient to keep in your toolkit for on-site cleanup, these pumps attach to your drill for small liquid extraction jobs, as well as draining water from clogged sinks and emptying tanks. Pumps are self-priming, which means they create a suction force to draw liquid upward. Do not use with solids.
Note: Pumps must be filled with liquid before use. They need a constant flow of liquid and cannot run dry.
Intake | Discharge | Shaft | Overall | |||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Max. Flow Rate, gpm | Max. Feet of Head, ft. | Max. Viscosity, cP | Temp. Range, °F | Hose Size | Thread Type | Gender | Hose Size | Thread Type | Gender | Motor Speed, rpm | Dia. | Lg. | Ht. | Wd. | Lg. | Includes | Each | |
| 3 3/4 | 90 | 1 | 40° to 110° | 3/4 | GHT | Male | 3/4 | GHT | Male | 1,200 | 1/4" | 3/4" | 3" | 4 1/2" | 3" | __ | 00000000 | 000000 |
| 3 3/4 | 90 | 1 | 40° to 110° | 3/4 | GHT | Male | 3/4 | GHT | Male | 1,200 | 1/4" | 3/4" | 3" | 4 1/2" | 3" | 30" Slip-On Intake Tube, 34" Discharge Tube with 3/4" Male GHT Connection | 00000000 | 00000 |