Technical Specifications

Working principle of our rotary lobe pumps

Sizes

Series 01/02

Type Vol. delivery m³/h Pressure Rpm Flange
min. max. bar 1/min. ND in mm
* Special pump size on request!
The max. rpm depends on the medium and has to be adjusted acc. the viscosity. Rpm, pressure and viscosity are as a function of each other.
1 m³ (1000l) = 264 US gal = 220 Imp gal = 35.31ft³ 1 bar = 14.2 psi
01.005 2 12 9 400 50
01.005 V 2 12 9 400 80/45°
01.010 * 4 24 9 400 100
01.010 V * 4 24 9 400 150/45°
01.014 6 34 7 400 100
01.014 V 6 34 7 400 150/45°
01.035 15 84 7 400 125
01.035 15 84 7 400 200/45°
02.050 18 105 8 350 150
02.050 V 18 105 8 350 250/45°
02.100 36 180 6 300 200
02.100 V 36 180 6 300 300/45°
02.350 V * 42 735 9 350 500/45°

Series 06/07

Type Vol. delivery m³/h Pressure Rpm Flange
min. max. bar 1/min. ND in mm
* Special pump size on request!
The max. rpm depends on the medium and has to be adjusted acc. the viscosity. Rpm, pressure and viscosity are as a function of each other.
1 m³ (1000l) = 264 US gal = 220 Imp gal = 35.31ft³ 1 bar = 14.2 psi
06.003 1 7 9 400 50
06.005 2 12 9 400 50
06.010 4 24 9 400 80
06.014 6 34 7 400 80
06.028 12 68 8 400 100
06.035 15 84 7 400 100
07.005 2 12 16 400 50
07.014 6 34 16 400 80

Sealing system

Axial seal ring in standard design.

Mechanical hard metal seals with quench.
This mechanical seal is strainfree, independent of direction of rotation and has enclosed spring suspension. On our standard version the O-rings are made of Viton and the fitting mechanical seals are made of silicone carbide. A quench system with zero pressure can be ordered as an accessory.

Mechanical hard metal seals with quench.

Mechanical hard metal seals with quench.
For the sugar industry special mechanical seals were developed which are strainfree, independent of direction of rotation and are spring suspended outside of the medium. On our standard version the O-rings are made of Viton and the fitting mechanical seals are made of tungsten carbide. The mechanical seals are lubricated and cooled by a quench system at zero pressure. The secondary seal is also a mechanical seal.

Double-acting slide ring seals with counter-pressure system.

Mechanical hard metal seals with quench.
This seal is a further development of our normal slide ring seal. It can be operated with a normal quench system or a barrier pressure system. (A modified version for explosive enviroments is also available.)

Axial seal ring for sterile processing.

This mechanical seal, developed and patented by Herold, is strainfree, independent of direction of rotation and is spring suspended outside of the medium. There is no gap around the mechanical seal and the O-ring. This design is ideal for sterile processing. A quench system with zero pressure can be ordered as an accessory.

Elastomer seal ring.

If the medium is ordinary, non-abrasive and lubricating and the pump does not require higher pressure, an elastomer seal ring can be put on request into the pump instead of a normal slidering seal.

Components

  • Materials in contact with the medium
    • Ni-resist
    • Stainless steel
  • Installation
    • Horizontal (standard)
    • Vertical (on request)
  • Adapters
    • Flange
    • Milkpipe thread
  • Finish
    • Painted
  • O-rings
    • NBR
    • Viton
    • (other materials on request)
  • Accessory
    • Quench-tank
    • Heating-/Cooling plate
    • Height adjustable frame
    • Portable frame
    • Basic frame
    • Current reverser
  • Sizes
    • 7 sizes
    • Pressure up to 16 bar/232 psi
    • Vol. delivery up to 735 m³/h
    • Rpm up to 400 1/min
  • Drive
    • Three-phase-geared motor
    • Mechanical variable speed geared motor
    • Standard clutch
    • Safety clutch