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About Process Pumps
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Constant-Flow-Rate Pumps for Oil
A high-horsepower motor moves oil with a viscosity similar to SAE 60 motor oil. Also known as gear pumps, these produce a smooth flow of liquid to lubricate equipment and blend oils. Motor is open dripproof (ODP) for use in clean, dry, and well-ventilated environments. 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 | Discharge | Overall | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Max. Flow Rate, gpm | Max. Viscosity, cP | Temp. Range, °F | hp | Current, A | Pipe Size  | Thread Type | Gender | Pipe Size | Thread Type | Gender | Lg. | Wd. | Ht. | Each | |
240/460V AC, Three Phase—Without Thermal Overload Protection | |||||||||||||||
Hardwire | |||||||||||||||
| 5 | 880 | -20° to 240° | 1/2 | 2/1 | 1/2 | NPT | Female | 1/2 | NPT | Female | 21 5/8" | 6 7/8" | 8 1/2" | 00000000 | 000000000 |
208-240/460V AC, Three Phase—Without Thermal Overload Protection | |||||||||||||||
Hardwire | |||||||||||||||
| 10 | 880 | -20° to 240° | 2 | 6.2/3.1 | 3/4 | NPT | Female | 3/4 | NPT | Female | 24" | 6 7/8" | 8 1/2" | 00000000 | 00000000 |
| 20 | 880 | -20° to 240° | 2 | 6.2/3.1 | 1 | NPT | Female | 1 | NPT | Female | 24 1/2" | 6 7/8" | 8 1/2" | 00000000 | 00000000 |
| 30 | 880 | -20° to 240° | 3 | 8.2/4.1 | 1 | NPT | Female | 1 | NPT | Female | 25" | 6 7/8" | 8 1/2" | 00000000 | 00000000 |
| 40 | 880 | -20° to 240° | 5 | 13.8/6.9 | 1 1/2 | NPT | Female | 1 1/2 | NPT | Female | 28 1/8" | 11 7/8" | 8 1/2" | 00000000 | 00000000 |
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 with an open dripproof (ODP) motor are for use in clean, dry, and well-ventilated environments. They have a relief valve to prevent pressure buildup.
Pumps with a totally enclosed (TE) or totally enclosed fan-cooled (TEFC) motor 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 | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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 |
120/240V AC, Single Phase—With Thermal Overload Protection | ||||||||||||||||
Hardwire | ||||||||||||||||
| 3.9 | 100 | 88 | -20° to 210° | 1/2 | 6.8/3.4 | 3/8 | Female | 3/8 | Female | Open Dripproof | 15 11/16" | 5 5/8" | 5 3/4" | Canada | 000000 | 000000 |
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 |
Compact Constant-Flow-Rate Pumps for Water and Oil
Designed to fit into small equipment, these pumps have miniature gears and a subfractional 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.
For technical drawings and 3-D models, click on a part number.
Intake | Discharge | Overall | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Max. Flow Rate | 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 | ||||||||||||||||
Hardwire | ||||||||||||||||
| 0.43 gpm (55 oz./min.) | 20 | 800 | 10° to 180° | Subfractional | 1.5 | Barbed | Male | 3/16" | Barbed | Male | 3/16" | 4 3/8" | 3" | 3 3/4" | 0000000 | 0000000 |
240V AC, Single Phase—With Thermal Overload Protection | ||||||||||||||||
Hardwire | ||||||||||||||||
| 0.43 gpm (55 oz./min.) | 20 | 800 | 10° to 180° | Subfractional | 1.5 | Barbed | Male | 3/16" | Barbed | Male | 3/16" | 4 3/8" | 3" | 3 3/4" | 0000000 | 000000 |
Harsh-Environment Compact Constant-Flow-Rate 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 subfractional 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.
For technical drawings and 3-D models, click on a part number.
Intake | Discharge | Overall | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Max. Flow Rate | 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 | |
12V DC—Without Thermal Overload Protection | ||||||||||||||||
Hardwire | ||||||||||||||||
| 0.61 gpm (78 oz./min.) | 20 | 800 | 10° to 180° | Subfractional | 2.2 | Barbed | Male | 3/16" | Barbed | Male | 3/16" | 4" | 1 3/4" | 2 1/2" | 0000000 | 000000 |
24V DC—Without Thermal Overload Protection | ||||||||||||||||
Hardwire | ||||||||||||||||
| 0.61 gpm (78 oz./min.) | 20 | 800 | 10° to 180° | Subfractional | 1.4 | Barbed | Male | 3/16" | Barbed | Male | 3/16" | 4" | 1 3/4" | 2 1/2" | 0000000 | 000000 |
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 | |
| 4.5 | 4.5 | 462 | 200 | 20,000 | 1/4 | 1/2 | 3/8 | Female | 3/8 | Female | 6 1/4" | 3" | 3 11/16" | 9/16" | 1 11/16" | 2 3/8" | 00000000 | 000000000 |
| 8.9 | 9 | 462 | 200 | 20,000 | 3/4 | 1 | 1/2 | Female | 1/2 | Female | 7 1/4" | 3 1/2" | 4 1/2" | 11/16" | 1 9/16" | 3" | 00000000 | 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" | 11/16" | 1 9/16" | 3" | 00000000 | 000000000 |
Hydraulic Pumps
Also known as gear pumps, these have few moving parts so they're less prone to wear than other hydraulic pumps. Combine with an electric motor to generate flow in a hydraulic system. To mount to a NEMA C-face motor, use a Pump-to-Motor Mount (sold separately).
UN/UNF (SAE Straight) thread connections have straight threads and are also known as O-ring Boss fittings.
For technical drawings and 3-D models, click on a part number.
Inlet Connection— UN/UNF (SAE Straight) | Outlet Connection— UN/UNF (SAE Straight) | Overall | Shaft | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Fixed Displacement Rate, cu. in./rev. | Max. Flow Rate, gpm | Max. Pressure, psi | Max. Speed, rpm | Thread Size | Dash Size | Thread Size | Dash Size | Ht. | Lg. | Dia. | Lg. | Choose a Drive Direction | Each | |
| 0.11 | 1.7 | 2,500 | 4,000 | 7/8"-14 | 10 | 3/4"-16 | 08 | 3 5/8" | 4" | 1/2" | 1 1/4" | 0000000 | 0000000 | |
| 0.21 | 3.3 | 2,500 | 4,000 | 7/8"-14 | 10 | 3/4"-16 | 08 | 3 5/8" | 4 1/4" | 1/2" | 1 1/4" | 0000000 | 000000 | |
| 0.33 | 5.2 | 2,500 | 4,000 | 7/8"-14 | 10 | 3/4"-16 | 08 | 3 5/8" | 4 3/8" | 1/2" | 1 1/4" | 0000000 | 000000 | |
| 0.52 | 8.4 | 2,500 | 4,000 | 7/8"-14 | 10 | 3/4"-16 | 08 | 3 5/8" | 4 3/4" | 1/2" | 1 1/4" | 0000000 | 000000 | |
| 0.64 | 7.8 | 2,000 | 3,000 | 7/8"-14 | 10 | 3/4"-16 | 08 | 3 5/8" | 4 7/8" | 1/2" | 1 1/4" | 0000000 | 000000 | |
Inlet Connection— UN/UNF (SAE Straight) | Outlet Connection— UN/UNF (SAE Straight) | Overall | Shaft | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Fixed Displacement Rate, cu. in./rev. | Max. Flow Rate, gpm | Max. Pressure, psi | Max. Speed, rpm | Thread Size | Dash Size | Thread Size | Dash Size | Ht. | Lg. | Dia. | Lg. | Choose a Drive Direction | Each | |
| 0.37 | 5.9 | 4,000 | 4,000 | 7/8"-14 | 10 | 3/4"-16 | 08 | 4 5/8" | 4 7/8" | 3/4" | 1" | 0000000 | 0000000 | |
| 0.49 | 7.9 | 4,000 | 4,000 | 1 1/16"-12 | 12 | 7/8"-14 | 10 | 4 5/8" | 5" | 3/4" | 1" | 0000000 | 000000 | |
| 0.61 | 9.9 | 4,000 | 4,000 | 1 1/16"-12 | 12 | 7/8"-14 | 10 | 4 5/8" | 5 1/8" | 3/4" | 1" | 0000000 | 000000 | |
| 0.98 | 11.9 | 4,000 | 3,000 | 1 1/16"-12 | 12 | 7/8"-14 | 10 | 4 5/8" | 5 1/2" | 3/4" | 1" | 0000000 | 000000 | |
| 1.16 | 14.1 | 4,000 | 3,000 | 1 5/16"-12 | 16 | 1 1/16"-12 | 12 | 4 5/8" | 5 5/8" | 3/4" | 1" | 0000000 | 000000 | |
| 1.4 | 15.9 | 3,200 | 2,800 | 1 5/16"-12 | 16 | 1 1/16"-12 | 12 | 4 5/8" | 5 7/8" | 3/4" | 1" | 0000000 | 000000 | |
| 1.65 | 16.1 | 2,700 | 2,400 | 1 5/16"-12 | 16 | 1 1/16"-12 | 12 | 4 5/8" | 6 1/8" | 3/4" | 1" | 0000000 | 000000 | |
Inlet Connection— UN/UNF (SAE Straight) | Outlet Connection— UN/UNF (SAE Straight) | Overall | Shaft | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Fixed Displacement Rate, cu. in./rev. | Max. Flow Rate, gpm | Max. Pressure, psi | Max. Speed, rpm | Thread Size | Dash Size | Thread Size | Dash Size | Ht. | Lg. | Dia. | Lg. | Choose a Drive Direction | Each | |
| 2.01 | 24.5 | 4,000 | 3,000 | 1 5/8"-12 | 20 | 1 5/16"-12 | 16 | 5 7/8" | 7 1/8" | 7/8" | 1 1/4" | 0000000 | 0000000 | |
| 2.32 | 28.3 | 4,000 | 3,000 | 1 5/8"-12 | 20 | 1 5/16"-12 | 16 | 5 7/8" | 7 3/8" | 7/8" | 1 1/4" | Clockwise | 0000000 | 000000 |
| 3.05 | 33.5 | 2,900 | 2,700 | 1 5/8"-12 | 20 | 1 5/16"-12 | 16 | 5 7/8" | 7 3/4" | 7/8" | 1 1/4" | 0000000 | 000000 | |
Inlet Connection— UN/UNF (SAE Straight) | Outlet Connection— UN/UNF (SAE Straight) | Overall | Shaft | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Fixed Displacement Rate, cu. in./rev. | Max. Flow Rate, gpm | Max. Pressure, psi | Max. Speed, rpm | Thread Size | Dash Size | Thread Size | Dash Size | Ht. | Lg. | Dia. | Lg. | Drive Direction | Each | |
| 0.07 | 0.8 | 3,000 | 4,000 | 9/16"-18 | 06 | 9/16"-18 | 06 | 3 7/16" | 4 5/8" | 1/2" | 1 3/8" | Clockwise and Counterclockwise | 0000000 | 0000000 |
| 0.13 | 1.7 | 3,000 | 4,000 | 3/4"-16 | 08 | 3/4"-16 | 08 | 3 7/16" | 4 5/8" | 1/2" | 1 3/8" | Clockwise and Counterclockwise | 0000000 | 000000 |
| 0.39 | 5 | 3,000 | 4,000 | 7/8"-14 | 10 | 7/8"-14 | 10 | 3 7/16" | 5 1/8" | 1/2" | 1 3/8" | Clockwise and Counterclockwise | 0000000 | 000000 |
| 0.71 | 5.4 | 1,800 | 2,400 | 7/8"-14 | 10 | 7/8"-14 | 10 | 3 7/16" | 5 5/8" | 1/2" | 1 3/8" | Clockwise and Counterclockwise | 0000000 | 000000 |