EP-4 Prelube Oil Pumps


For a PDF Data Sheet on this pump Click Here.


The EP-4 pump is designed from the ground up to be the ideal prelube oil pump for diesel and natural gas Engine Prelube. EP4 Diesel Engine Prelube Pump It performs well with high viscosity oils down to very cold temperatures. As a positive displacement , it will self-prime and is more efficient and quieter than a gear pump.

The EP-4 is powered by a self-contained TENV motor rated for both 12 and 24 Volts DC power systems. Both voltages are capable of pressures in excess of 60 psi (4 bar).

These pumps also incorporate a self-contained low loss check valve to prevent backflow. This is a critical component in any prelube system to ensure that when the main oil pump is running it cannot spill pressure through the prelube system. By including it in the pump the EP-4 reduces the cost of the prelube system as a whole. These pumps are quieter than a gear design due to their "whisper vane" pump technology. Call for a trial unit today.


EP4PerformanceGraphWeb (4K)

XD4DutyCycleGraph (12K)

EP-4 @ 24VDC Features and Specifications

  • Self-contained TENV motor Rated for 24vdc (Not for Continuous Duty)
  • 4 GPM (15 l/m) flow rate
  • Pressures in excess of 60 psi (4 bar)
  • Integrated low loss check valve
  • Whisper-Vane positive displacement vane technology
  • Suction port SAE straight thread O-ring size: 3/4" (19mm)
  • Discharge port SAE straight thread O-ring size: 3/4" (19mm)
  • Designed for 500-3000hp (370-2230kw) diesel engine applications

EP-4 @ 12VDC Features and Specifications

  • Self-contained TENV motor Rated for 12vdc (Not for Continuous Duty)
  • 1.75 GPM (6.6 l/m) flow rate
  • Pressures in excess of 60 psi (4 bar)
  • Integrated low loss check valve
  • Whisper-Vane positive displacement vane technology
  • Suction port SAE straight thread O-ring size: 3/4" (19mm)
  • Discharge port SAE straight thread O-ring size: 3/4" (19mm)
  • Designed for 400 - 800hp (300-600kw) diesel engine applications

Feature and Specifications Comparison
@ 24VDC
@ 12VDC
Flow rate
4 gpm
(15 l/m)
1.7 gpm
(6.6 l/m)
Attainable pressure
60psi
(4 bar)
60psi
(4 bar)
Integrated low loss check valve
Y
Y
Whisper-Vane positive displacement vane technology, Self Priming
Y
Y
Suction port SAE straight thread O-ring size:
3/4"
(19mm)
3/4"
(19mm)
Discharge port SAE straight thread O-ring size:
3/4"
(19mm)
3/4"
(19mm)

EP4_Shot64_150px (53K)

Wetted Materials

  • Anodized Aluminum 6061-T6
  • Carburized Carbon Steel
  • Rubber Viton V884

For info. about Prelube and what it can do for your engine Click Here.
For larger, more sophisticated installations that have AC or compressed air power available the VARNA CF-15 prelube pump mounts to any 56C-Face motor.
To inquire about any of our pumps Click Here, or Call 888-676-7770.

Reliability is the DNA of every Varna pump. Varna eliminates taxing maintenance regiments for industry by providing pumps that go maintenance free for decades where others last months. Varna pumps are designed to outlast the equipment they serve.


Customer Feedback "It has now been about a year since we switched to Varna pumps, and now I receive nothing but compliments about how quiet our vehicles are,
Chief Mechanical Engineer Alan Arkus of AMP Electric Vehicles


Article Link
Only Prelube Puts Oil Where It Needs To Be At Starting


We believe the less the end user has to think about our product the better job we did.

Give us a call!

Let's talk about what VARNA Products can do for you.

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888.676.7770 | 2018