Eagle Pump
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Rotary Lobe Pumps

EAGLE EP Series Rotary Lobe Pump
EP Series

EAGLE EP Series Rotary Lobe Pump

'EAGLE' EP series lobe pump consists of complete AISI 316 stainless hygienic material. Pump is designed to facilitate connection to vertical and horizontal lines. There are many models to the wide capacity and viscosity needs. It is suitable for CIP and SIP processes.

AISI 316

Hygienic Stainless Steel

Vertical / Horizontal

Flexible Installation

CIP / SIP Ready

Clean-in-Place & Sterilize-in-Place

Introduction

The Eagle Pumps Rotary Lobe Pump is a reliable positive displacement pump for the gentle handling of sensitive process fluids. The pump is carefully engineered to provide reliable performance, trouble-free operation and superior energy efficiency for demanding applications. It is an excellent choice for duties that require contamination-proof pumps to meet high standards of hygiene, low-shear and low-pulsation operation. The pump is designed according to the most stringent hygienic design standards and with verified, effective Cleaning-in-Place.

Applications

The Rotary Lobe Pump is designed for gentle handling of sensitive process fluids across the dairy, food, beverage, brewing, chemical, pharmaceutical, and home and personal care industries. Its smooth, low-shear pumping action makes the pump suitable for handling media of varying viscosities, whether low or high—from creams, gels, emulsions, and aerated mixtures to delicate cells and organic solids in suspension. The Rotary Lobe Pump is available with 12 different pump head displacements based on six different gearbox modules to handle flow rates up to 106 m³/h and differential pressures up to 20 bar.

Benefits

Standard Design

All media contacting steel components, like the rotor case, front cover, rotors and rotor nuts, are in W. 1.4404 (AISI 316L). The robust stainless steel gearbox provides maximum shaft rigidity and easy oil seal replacement. The gearbox design is universal, which enables the flexibility of mounting pumps with the inlet and outlet ports in either a vertical or horizontal plane by changing the foot and its position.

The standard Eagle Rotary Lobe Pump has tri-lobe rotors. Optional bi-lobe rotors for handling fluids containing large delicate solids are available. All rotors are available in three temperature ratings enabling the pump to be operated at maximum process temperatures of 70°C, 130°C and 200°C for both fluid pumped and CIP.

Single, single flushed, and double mechanical shaft seals as well as packed gland, unflushed or flushed, are available.

The Eagle Pumps can be supplied either as a bare shaft pump or mounted on a base plate complete with coupling, guard, gear motor and shroud for easy, plug-and-play installation.


Working Principle

A gear train in the pump gearbox drives the rotors and provides accurate synchronization of the tri-lobe rotors. The movement of the counter-rotating rotors creates a partial vacuum that allows atmospheric pressure or other external pressures to force fluid into the pump chamber. As the rotors revolve, an expanding cavity forms, filling with fluid. As the blades disengage, each dwell forms a cavity. As the rotor blades engage, the cavity diminishes and fluid is displaced into the outlet port.


Technical Data

Standard Specification

Product Wetted Steel Parts SS316
Inside Surface Finish Mech Ra < 0.8
Gearbox Cast Iron
Baseplate Stainless Steel
Coupling guard Stainless Steel
Rotor Tri-Lobe
Shaft Seal Single Mechanical (38mm)
Rotary seal face Tungsten Carbide
Stationary Seal Face Stainless Steel

Shaft Seals

Single, single flush, double mechanical and packed gland, flushed and unflushed, available. For EHEDG compliance Hyclean type must be used.

  • Max flush pressure, single flush: 0.5 bar
  • Max flush pressure, double mechanical: 1 bar over product pressure
  • Max flush pressure, packed gland, flushed: 1 bar over product pressure
  • Water consumption: 0.5 l/min
  • Flush connections: BSPT
Temperature

Max process and CIP temperature: 200°C

Warranty

1-year warranty on pumps. The warranty covers all non-wear parts on the condition.


Flows / Pressures / Connections (EP Series)

# Pump Model Displacement (Liters/Min) Inlet and Outlet Size Differential Pressure (bar) Maximum Speed (rpm)
1 EP05 25 0.5" 3 960
2 EP100 58 1" 5 960
3 EP150 100 1.5" 6 960
4 EP200 200 2" 8 720
5 EP250 300 2.5" 8 600
6 EP300 550 3" 10 600
7 EP400 750 4" 10 600
8 EP500 1200 5" 10 600
9 EP600 2500 6" 10 600

Maximum Solid Size Capability

Model No Bi-Lobe rotors Tri-Lobe rotors
mm in mm in
EP050 0.5 0.25 3 0.12
EP100 5 0.30 6 0.24
EP150 10 0.50 8 0.30
EP200 13 0.51 9 0.35
EP250 16 0.63 11 0.43
EP300 22 0.87 15 0.59
EP400 27 1.06 18 0.71
EP500 27 1.06 18 0.71
EP600 37 1.46 24 0.94

Shaft Seal Options

  • Single or single flush/quench. E100 or Hyclean type mechanical seals.
  • Double E300 type mechanical seal for flush (steam barrier for aseptic application).
  • Packed gland (unflushed or flushed versions).

Note! EHEDG compliance only for Hyclean type mechanical seals

Materials for Mechanical Seals

Carbon/Stainless steel, Tungsten Carbide/Tungsten Carbide, Silicon Carbide/Silicon Carbide or variations of these materials to suit fluid being pumped and/or application requirements.

Standard Specification Options

  • Specification of inlet and outlet ports (TC).
  • Rotor case Cover with integral Pressure Relief Valve (As per Order).
  • Heating/Cooling Saddle Jackets for Rotorcase and Jacket for Rotorcase Cover (not available when relief valve fitted).
  • Bi-lobe Rotors in stainless steel and non-galling alloy.