Positive Displacement Lobe Pump
Gentle, low-shear transfer for viscous and shear-sensitive products — fully CIP compatible with flow up to 120 m³/hr.
Gentle, precise transfer for your most demanding products.
The Positive Displacement Lobe Pump is the preferred choice for transferring viscous, shear-sensitive, or particulate-laden products where a centrifugal pump would cause product damage or inconsistent flow. Counter-rotating lobes trap and displace a fixed volume of product per revolution, delivering a smooth, pulsation-minimised flow that is directly proportional to pump speed.
All product-contact surfaces are manufactured from SS 316L with a Ra ≤ 0.8 µm finish. The front-loading lobe and seal design allows complete disassembly for inspection and cleaning without removing the pump from the pipeline — a critical advantage in high-hygiene environments. The pump is fully CIP and SIP compatible, with mechanical seals rated for cleaning temperatures up to 140°C.
Available with a variable-frequency drive for precise flow control, the lobe pump integrates seamlessly into automated process lines. A wide range of lobe profiles — including bi-wing, tri-lobe, and circumferential piston — allows the pump to be optimised for your specific product viscosity and particle size.
Technical Specifications
| Parameter | Specification |
|---|---|
| Maximum flow rate | 120 m³/hr |
| Maximum differential pressure | 15 bar |
| Viscosity range | 1 – 1,000,000 mPa·s |
| Wetted material | Stainless steel 316L |
| Internal surface finish | Ra ≤ 0.8 µm |
| Lobe profiles available | Bi-wing, tri-lobe, circumferential piston |
| Mechanical seal | Single or double, FDA-compliant elastomers |
| CIP / SIP rating | CIP up to 95°C; SIP up to 140°C |
| Connections | Tri-clamp (standard); DIN / SMS available |
| Motor rating | 0.75 – 22 kW (model dependent) |
| Power supply | 380V / 3-phase / 50Hz |
| Hygiene standard | 3-A Sanitary Standard; EHEDG certified |
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Share your product viscosity, required flow rate, and operating pressure — we'll recommend the right lobe profile and prepare a proposal within 48 hours.