How to Prime Your Pump
More
How to Determine Feet of Head
More
About Process Pumps
More
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. Products cannot be sold outside North America due to restrictions.
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. | Cannot Be Sold To | 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" | Outside North America | 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" | Outside North America | 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" | Outside North America | 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" | Outside North America | 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" | Outside North America | 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.
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 |
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. | 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 |