Aftermarket MFE5-2000 Electric Gear Pump Unit
This page describes an aftermarket electric gear pump unit that cross-references the MFE5-2000. This is an aftermarket pump unit, not manufactured, sponsored, or endorsed by any original equipment maker.
The unit is built for intermittent operation in single-line centralized oil lubrication systems. It supplies oil to piston distributors and lubrication points. The assembly includes a gear pump with relief and regulating valves mounted on a reservoir.
How the Unit Works
The unit uses a three-phase gear pump with an integrated pressure relief valve and a pressure regulating valve. A float switch monitors the minimum oil level in the reservoir. Intermittent duty is controlled by a machine timer or external controller. The pump provides consistent flow for timed oil delivery to the lubrication points.
Specifications
| Flow | 0.5 L/min at 50 Hz |
| Flow at 60 Hz | 0.6 L/min |
| Max operating pressure | 28 bar with integrated relief |
| Continuous operating pressure | up to 20 bar recommended |
| Motor power at 50 Hz | 0.075 kW |
| Motor power at 60 Hz | 0.09 kW |
| Motor type | three-phase |
| Voltage | 230/400 V 50 Hz standard, other voltages by multivoltage motor |
| Speed at 50 Hz | 2700 rpm |
| Speed at 60 Hz | 3200 rpm |
| Suction lift | max 500 mm |
| Connections | M14 x 1.5 for 8 mm tube |
| Seals | NBR standard |
| Ambient temperature | +10 to +40 C |
| Oil viscosity | 20 to 1000 cSt |
Reservoirs and Level Monitoring
Reservoir options are 3, 6, and 15 L. The 3 and 6 L reservoirs use one float switch changeover contact. The 15 L reservoir uses two reed contacts with advance warning before minimum level. Plastic reservoirs allow visual level checks, while metal reservoirs have a sight glass.
System Compatibility
This unit is for single-line oil systems feeding piston distributors. It is not for grease. Confirm injector and distributor compatibility for the flow and pressure range. See the single-line lubrication system guide and oil pump information before specifying.
What to Confirm Before Ordering
Confirm reservoir size 3, 6, or 15 L. Confirm motor voltage and frequency. Confirm float switch configuration. Confirm external control, including timer, starter, and overload, since no integrated controller is included. Confirm oil viscosity range stays within 20 to 1000 cSt. For help with selection, contact the team with your system details.
Frequently Asked Questions
Can this pump unit handle grease?
No, this unit is oil only. It handles oil with viscosity from 20 to 1000 cSt.
What flow does the pump deliver?
It delivers 0.5 L/min at 50 Hz. At 60 Hz, flow is 0.6 L/min.
What pressure does the unit provide?
Maximum pressure is 28 bar with the integrated relief. Continuous operating pressure up to 20 bar is recommended.
Which reservoir sizes are available?
Reservoir sizes are 3, 6, and 15 L. The 15 L version adds advance warning contacts.
Is a controller included with the pump?
No, the unit is shipped without a controller. An external timer and starter are required.
What does the float switch do?
It sends a minimum level signal for the reservoir. The 15 L reservoir adds an advance warning contact.
What voltage does the motor use?
Standard voltage is 230/400 V at 50 Hz. Other voltages are possible with the multivoltage motor.
What duty cycle is this pump rated for?
The unit is rated for intermittent duty only. Duty is set by the machine timer or controller.
What is the maximum suction lift?
Maximum suction lift is 500 mm. Install the pump close to the reservoir oil level.
Who builds this pump unit, and how do I get a quotation?
IsoHiTech Lubrication Systems, founded in 2023, engineering since 2006, builds and supports every unit. Email inquiry@isohitech.com for specifications and a quotation.
Contact the team with your reservoir size and voltage.
