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)

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.

• 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

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

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.

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