Positive displacement pumps

Ro­tary Lobe Pump B

Ro­tary Lobe Pump BB, BA, BF

Ro­tary Lobe Pump C, CF

Air Op­er­ated Dou­ble Di­aphragm Pump AS­TRAe­vo Food (DDE SPN)

Rotary Lobe Pump B

Drehkolbenpumpe B Information Manual

Application:

Lobe pumps of series "B" are positive displacement rotary pumps. The capacity is directly proportional to the rotation speed.  Two synchronously driven rotors are rotating in a casing. This design provides a very gentle pumping of fluids. 


Characteristics:

  • Heating optional
  • Safety valve optional
  • ATEX optional
  • Series B with flexible coupling
  • Series BE in monobloc design
  • Pumping in both directions
  • Self-priming
  • Easy and simple cleaning (SIP, CIP)
  • Countless versions and options available

Ma­te­ri­als:

  • All hy­draulic parts are made of stain­less steel AISI 316. Spe­cial al­loys and sur­face hard­en­ings avail­able on re­quest.
  • Shaft seal­ing al­ter­na­tive with me­chan­i­cal seal, stuff­ing box or spe­cial lip seal. The ma­te­ri­als and the ex­e­cu­tion of the me­chan­i­cal seal, pack­ing or lip seal in ac­cor­dance to the liq­uid.

Tech­nical data:


  • Q max.: 300 m³/h
  • Vis­cos­ity: up to 110.000 mm²/s (cSt)
  • Ma­x. nom­i­nal pres­sure: max. 20 bar
  • Tem­pe­ra­ture liq­uid: -40 to 200°C
  • Con­nec­tions: DN25 - DN200

Rotary Pump BB, BA, BF 

Drehkolbenpumpe BB

Application:

Lobe pumps of series BB, BA and BF are positive displacement rotary pumps. The capacity is directly proportional to the rotation speed. Two synchronously driven rotors are rotating in a casing. This design provides a very gentle pumping of fluids.
The pumps of these series are a further development of the B series to meet the extended demands of the certifications 3-A FDA and EHEDG.


Characteristics:

  • ATEX optional
  • BB with surface roughness Ra 0.8  - 2,8 µm (3-A standard)
  • BA with surface roughness Ra ≤ 0,8 µm (3-A FDA certificate)
  • BF with surface roughness Ra ≤ 0,6 µm (EHEDG certificate and 3-A FDA certificate)

Materials:

All hydraulic parts are made of stainless steel AISI 316L. The bearing housing can be made of cast iron or stainless steel AISI 304.

Tech­nical data:

  • Viscosity: up to 200.000 mm²/s (cP)
  • Tem­pe­ra­ture liquid: -35° to 180°C
  • Connections: DN25 - DN100

Rotary Lobe Pump C, CF 

Drehkolbenpumpe C, CF

Application:

Lobe pumps of series C are positive displacement rotary pumps. The capacity is directly proportional to the rotation speed. Two synchronously driven rotors are rotating in a casing. This design provides a very gentle pumping of fluids.

This pump series meets the extended demands of the certifications 3-A FDA and EHEDG.


Characteristics:

  • Design for highest hygienic demands
  • C with surface roughness Ra ≤ 0,8 µm (3-A FDA certificate)
  • ·CF with surface roughness Ra ≤ 0,6 µm (EHEDG certificate and 3-A FDA certificate)
  • Connections DN25 to DN125 with TRI-CLAMP or DIN 11864-3 (no welding)

Materials:

All hydraulic parts are made of stainless steel AISI 316L. The bearing housing can be mad of cast iron or stainless steel AISI 304.

Air Operated Double Diaphragm Pump ASTRAevo Food (DDE SPN)

Druckluftmembranpumpe ASTRAevo

Application:

The air operated double diaphragm pumps of type DDE SPN are used for pumping a variety of different liquids in the food and cosmetics industry like beverages, marmalade, honey, cremes, shampoo and many more. This pump can be used for thin and viscous fluids.


Characteristics:

  • Self-priming
  • Capable of dry running
  • ATEX optional
  • No shaft seal needed
  • FDA standards approved

Materials:

The air operated double diaphragm pump is made of electropolished stainless steel AISI 316L and PTFE.

Tech­nical data:

  • Q max: 42,9 m³/h
  • Vicosity: up to 50.000 mm²/s
  • Tem­pe­ra­ture liquid: max. 95°C