Stainless steel lobe rotor pump

High-performance stainless steel lobe (rotary) pump designed for hygienic, industrial and sanitary transfer of viscous, shear‑sensitive and particulate‑bearing liquids. Two synchronously counter‑rotating lobed rotors create sealed chambers that entrain and displace fluid from inlet to discharge, delivering a smooth, pulsation‑reduced flow with minimal shear.

Key features

• Robust stainless steel construction for corrosion resistance and sanitary applications.
• Non‑contact rotor design: rotors run with a controlled clearance from each other and the casing, eliminating metal‑to‑metal friction and extending service life.
• Handles highly viscous media (up to ~2,000,000 cP) and slurries with up to 60% solids by weight, including sludge and sewage when equipped with appropriate materials.
• Low pulsation, low noise and reliable sealing suitable for dosing and metering duties when fitted with a speed control system.
• Multiple drive/configuration options: fixed‑ratio motor+reducer (constant flow), mechanical friction CVT (manual infinite adjustment) or variable frequency drive (automatic, wide-range speed/flow control).
• Connection options to match your piping: flanged, threaded (screw) or clamp (tri‑clamp) joints; sanitary safety valve can be installed on the pump head per customer request.
• Mobile/barrel‑suction variant available with suction vacuum up to 0.08 MPa for direct drum transfer.
• Simple assembly/disassembly for cleaning and maintenance; few wear parts reduce downtime.

Operational notes

• Select drive type according to required flow control and automation level; VFDs provide the highest automation and low‑speed torque but increase system cost.
• Maintain recommended clearances and follow the supplied user manual for lubrication, start/stop procedures and routine inspection to ensure long service life.

Typical applications

• Food and beverage (with appropriate sanitary finishes), pharmaceuticals, cosmetics
• Wastewater treatment, sludge handling and environmental services
• Chemical processing and adhesives
• Paints, inks and other high‑viscosity product transfer

For specification selection, provide the target fluid (viscosity, solids content, temperature), required flow rate and discharge pressure so the correct rotor size, material and drive can be recommended.