Biogas Pump / Regrowing Biogas Substrate / Resistant/ Against
Solids / Self-Priming
An operator of a biogas large scale plant was not satisfied with
the rotary lobe pumps of a competitor, which he used before. The
rotors of the pumps were very wear intensive and outworn within a
few weeks. There were also often problems with sealings and gears
of this pump manufacturer.
To find the ideal pump for his biogas plant, the operator started a
test, which took one year.Numerous pumps have been tested. At the
end of this test procedure, the customer chose 4 Accuvon rotary
lobe pumps AP 140 for his biogas plant.Not only the high quality
and the ease of maintenance of the Accuvon rotary lobe pump
convinced the customer, but also and above all, the Premium profile
biogas rotor, which has been developed especially for the biogas
field. Fibrous renewable primary products fix themselves into the
grooves of the Premium rotor. This coat, which renews itself with
every rotation, builds the sealing between revolving rotor and
casing. This technology ensures a high efficiency as well as an
almost abrasion free operation of the Premium profile rotor.
Accuvon products in agriculture and biogas
| 1 | • Biogas plants |
| 2 | • Vat filling station |
| 3 | • Silages |
| 4 | • Mobile liquid manure pump |
| 5 | • Fermenter |
| 6 | • Separation |
| 7 | • Solids supply |
Application Data:
| Pump type | Accuvon AP 140 |
| Pumped medium | regrowing biogas substrate |
| Temperature | 10 – 50° C |
| Rated capacity | 50 m³/h |
| Speed | 273 rpm |
| pH-value | neutral |
| Entrance pressure | -0.2 bar |
| Working pressure | up to 3 bar |
| Solid content | 7% DS |
Technical Data:
| Casing | Grey cast iron |
| Radial casing liners | Hart metal |
| Casing protection plate | Hart metal |
| Mechanical seal | SIC /SIC |
| O-Rings | NBR |
| Shaft seals | NBR |
| Rotors | dual-lobe, linear, Premium profile, steel |
| Drive | Helical gear motor, 11 kW |
Advantages of this Accuvon AP 140
| 1 | - Free ball channel Ø 75 mm |
| 2 | - Low-wear biogas rotor with Premium profile |
| 3 | - Electronic protection from running dry |
| 4 | - Pumping of abrasive Media |
| 5 | - Resistant to pressure |
| 6 | - Medium unwetted shafts |
| 7 | - Self-priming |
| 8 | - Temperature sensor in the pump casing |
| 9 | - Adjustable speed, depending on entrance pressure via frequency
converter |
| 10 | - Ease of maintenance (Maintenance in Place) |
operating principle
• Self-priming, valveless, positive displacement pump
• Designed with two shafts with parallel axes
• The shafts move relatively to one another thanks to external
timing gear
• The displacers (=rotors) roll off each other with minimum axial
and radial clearance
• In every position, the rotors and casing close the suction
chamber against the pressure chamber
• Gentle, low-pulsation pumping
• For viscous, solid, abrasive or shear-sensitive media
Accuvon's range of rotors –the Premium rotor
Premium profile– of biogas rotors
• Large sealing area
• Effective wiper edge
• Pressure-resistant
• Made of steel, stainless steel or plastic
axial and radial casing protection
To protect the pump casing from abrasive media and solids, we
developed replaceable casing protection plates and liners several
years ago.
The casing protection is replaced in a few steps, based on the MIP
principle.
Easy maintenance– Maintenance in Place
• Reduced maintenance times and downtimes
• Maintenance at installation site by customer's in-house staff
