Lobe Pumps

Lobe Pumps

Lobe Pumps

The RHODEK rotary lobe pump basically consists of two lobe rotors which rotate inside the casing without touching each other. As the rotors rotate, the space between the lobes and the casing is successively filled with the product which is driven to the discharge nozzle displacing a fixed amount of product. The pumped product forms a continuous stream due to the adjusted tolerances of the lobes and the pump casing thus ensuring an efficient pumping.

Pump Technical Details

Model Displacement (L/r) Rotation speed (r/min) Flow rate (M³/h) Dis. Pre. (Mpa) Electrical power (Kw) Suc. Pre. (Mpa) Dia. of inlet and outlet (mm)
25BV6 /12-2 0.15 20-600 2 0.1-1.2 1.1-2.2 -0.095

25
40BV6 /12-5 0.32 20-550 5 0.1-1.2 1.5-4 -0.095 40
50BV6 /12-10 0.65 20-550 10 0.1-1.2 2.2-7.5 -0.095 50
65BV6 /12-20 1.74 20-550 20 0.1-1.2 4-15 -0.095 65
80BV6 /12-30 2.48 20-550 30 0.1-1.2 5.5-22 -0.095 80
80BV6 /12-40 3.65 20-550 40 0.1-1.2 7.5-30 -0.095 100
125BV6 /12-50 4.60 20-550 50 0.1-1.2 11-45 -0.095 125
125BV6 /12-70 6.10 20-550 70 0.1-1.2 15-55 -0.095 125
125BV6 /12-80 7.63 20-550 80 0.1-1.2 18.5-75 -0.095 125
150BV6 /12-120 11.56 20-420 120 0.1-1.2 22-90 -0.095 150
150BV6 /12-150 14.22 20-420 150 0.1-1.2 37-110 -0.095 150
200BV6 /12-200 18.10 20-420 200 0.1-1.2 45-132 -0.095 200
250BV6 /12-250 22.92 20-420 250 0.1-1.2 55-160 -0.095 250
300BV6 /12-300 32.00 20-420 300 0.1-1.2 75-200 -0.095 300

Design and Features

  • Vertical support
  • Bare-shaft construction
  • Self-drainable pump
  • Tri-lobe rotors
  • Hygienic design of the attachment of the lobes
  • Sanitary mechanical seal, internal assembly
  • The seal is disassembled from the frontal part without disassembling the casing of the pump. Gaskets with deformation limiters prevent any dead leg
  • Easy cleaning and maintenance
  • Standard connection : clamp
  • Pump certified according to the EHEDG standards

Materials

  • Investment casting casing and lobes : AISI 316L
  • Ball bearing support GG-25
  • Gaskets : EPDM according to FDA 177.2600
  • Mechanical seal : SiC/C/EPDM
  • Internal surface finish : Ra ≤ 0,8µm
  • External surface finish : bright polish

Options

  • Mechanical seal: SiC/SiC, TuC/SiC
  • Flushed or balanced mechanical seal
  • Gaskets: FPM or FFPM
  • Bi-wing lobes. Relief valve or external by-pass
  • Heating jacket
  • Ra ≤ 0,5 μm surface finish for pharmaceutical applications
  • Horizontal assembly (no EHEDG certificate)
  • Various types of drives and protections (gear motor with frequency converter, etc.)
  • Assembly on a 304 stainless steel baseplate on silent-blocks, sanitary design
  • Trolley and control panel
  • Connections: Clamp DIN32676, DIN 11864-1, DIN 11864-2, etc.
  • Material certificates (3.1), roughness certificate
  • The pump can be ATEX certified