The HLR rotary lobe pump basically consists of two lobe rotors which rotate inside the casing without touching each other. As the rotors rotate, the space between the lobes and the casing is successively filled with the product which is driven to the discharge nozzle displacing a fixed amount of product. The pumped product forms a continous stream due to the adjusted tolerances of the lobes and the pump casing thus ensuring an efficient pumping.
Investment casting casing and lobes: AISI 316L
Ball bearing support GG-25
Gaskets: EPDM according to FDA 177.2600
Mechanisal seal: SiC/C/EPDM
Internal surface finish: Ra ≤ 0,8µm
External surface finish: bright polish
Mechanical seal: SiC/SiC, TuC/SiC.
Flushed or balanced mechanical seal.
Gaskets: FPM or FFPM.
Bi-wing lobes. Relief valve or external by-pass.
Ra ≤ 0,5 μm surface finish for pharmaceutical applications.
Horizontal assembly (no EHEDG certificate).
Various types of drives and protections (gear motor with frequency converter, etc.).
Assembly on a 304 stainless steel baseplate on silent-blocks, sanitary design.
Trolley and control panel.
Connections: Clamp DIN32676, DIN 11864-1, DIN 11864-2, etc.
Material certificates (3.1), roughness certificate.
The pump can be ATEX certified.
Data sheet (7)