Series X Rotary Lobe Pump

SSP brand Series X stainless steel rotary lobe pumps, from Alfa Laval Pumps Limited, provide the ultimate in clean pumping. Series X pumps complement the SSP Series S pumps, which are used throughout industrial and clean processes worldwide. Series X pumps are EHEDG accredited (European Hygienic Equipment Design Group) for the highest level of cleanability. Handling from low to high viscosity pumped media the characteristic smooth, low shear pumping action is ideal for gentle transfer of delicate and sensitive media.

Operation

The positive displacement of the Series X pump is provided by noncontacting, contra rotating four-lobe rotors within a fully swept pump chamber. The Series X pump can be configured with vertical or horizontal ports. All Series X pumps are capable of bi-rotational flow without modification. Series X pumps are suitable for CIP (Cleaning In Place) & SIP (Sterilization In Place) and conform to USA 3A Sanitary Standard.

User Benefits

• High efficiency
• Low energy consumption
• Compact size
• EHEDG accreditation
• Smooth flow
• Reversible operation
• Low shear pumping
• Minimal pumped media agitation
• Self draining
• Easy maintenance

The Series X pump with its modular design giving a choice of 14 models, provides for greater application flexibility and cost effective easy maintenance.

Pumphead

All metallic pumped media wetted components are manufactured in 316L stainless steel. The Series X has four-lobe rotors allowing the pump to be operated at a maximum temperature of 300 for both process and CIP/SIP. A unique self-cleaning design rotor retention device incorporates a high integrity cup seal to fully isolate splines from the pumped media. The precise involute splines ensure accurate rotor synchronization.

Shafts

Manufactured from high strength duplex stainless steel.

Gearbox

The Series X pump has a robust cast iron gearbox with universal design for models X1 to X4. This gives the flexibility of mounting pumps with the inlet and outlet ports in either a vertical or horizontal plane by changing the foot and its position. For EHEDG design and installation compliance and conformity to the Machinery Safety Directive 89/392/EEC (1989), a dedicated vertical port option will be supplied.

The Series X pump range has fourteen pump head displacements ranging from 1.32 gallons/100 revs to 100.40 gallons/100 revs.

• Flow rates up to 505 gpm
• Differential pressures up to 215 psi
• Port sizes from 1” to 6” diameter

Computational Fluid Dynamics

Computational Fluid Dynamics (CFD) has been used to establish mathematically exact geometry for the rotors and rotorcase, ensuring high efficiency transfer with low pulsation, low shear and low noise characteristics.

Low NPSH

The Series X pump has full through-bore inlet and outlet ports to International Standards. This reduces inlet and outlet port losses, thereby lowering NPSH requirements.

Listed below are optional component configurations that can be used to enhance the operation of the Series X pump.

Surface Finish

The standard surface finish of 32 cla for the pumphead and rotors can be enhanced for overall cleanabilty by electro polishing <_32 cla with the option of 20 cla from mechanical and electro polishing. Higher surface finishes are available upon request.

Full Material Traceability

To meet the stringent demands of sensitive applications requiring integrity of materials and/or safety, pumps may be supplied with full material traceability to BSEN 10204.

Pumped Media Seals

The optimum primary seal configuration and material combinations can be chosen to match the pumped media and duty conditions. All sealing options are fully front loading and fully interchangeable without the need for additional housings or pump component changes.

This enhances cleanability, simplifies access and significantly reduces maintenance downtime. Single or double mechanical seals include flushed or aseptic variants. For arduous duties hard faced seal materials such as silicon carbide can be used. The seal seat/face material combinations and EPDM/FPM elastomers are all EHEDG compliant.

All pumped media wetted elastomers are controlled compression joints, the latest technology where static and dynamic elastomer seals are used to prevent pumped media leakage - materials are EPDM, MVQ, FPM all FDA conforming.

Heating & Cooling Devices

A rotorcase cover jacket is used for heating the pumphead so as to maintain the pumped media viscosity and reduce risk of any crystallization/solidification. This may also be used for cooling purposes when required.

Connections

Comprehensive choice covering:

• Screwed male connections to all major standards including DIN11851, ISS/IDF, RJT, SMS, and Tri-clamp.
• Aseptic male connections to DIN11864-1 Form A (ISO2037/BS4825).

Motorized Pump Units

Pumps may be supplied fully motorized with fixed or variable speed drives including appropriate control systems if required, mounted on either mild or stainless steel baseplates. In addition to electric motor drives, hydraulic, pneumatic, diesel or gasoline powered prime movers can be fitted.