Rotary lobe pump R series

slurryself-primingmobile

Overview

• Rotary lobe pump designed for liquid manure handling on farms
• Self-priming, dry-run resistant and reversible flow direction
• Low pulsation operation due to offset lobe arrangement

Key features

• Self-priming capability and resistance to dry running
• Reversible flow for flexible installation and reduced piping
• Double-bearing drive side and generously dimensioned shaft
• Axial wear plates to protect the pump chamber and extend service intervals
• Wide range of lobe materials and geometries to match media

Materials and components

• Pump chamber: standard abrasion-resistant gray cast iron; optional ADI, stainless steel, duplex or nickel-base alloys on request
• Face sides / wear protection: high-strength special steel axial wear plates; optional heat treatment and wear-resistant coatings
• Lobe cores and elastomer coverings: tailored compounds to match the pumped medium
• Bearing and shaft: double bearing and oversized shaft for durability

Lobes and geometries
Available lobe materials include NBR, NBR white, EPDM-SL, EPDM-AL, EPDM white, CSM, FKM, PU, stainless steel and nitrided steel. Geometries: straight, double-wing, 3-wing, 4-wing, 6-wing and pulsation-free HiFlo variants.

Applications
The R series is suitable for farm liquid manure handling, tanker filling and draining, mobile pumping units and priming from deep pits. Reversible flow reduces the need for multiple pipe runs during loading/unloading.

Models

• R116 — For occasional agricultural pumping; capacity up to 4,500 l/min; up to 5 bar.
• R136 — For higher-capacity agricultural use; capacity up to 5,000 l/min; up to 5 bar.

Technical specifications

• Series: R series
• Type: rotary lobe pump, double-bearing
• Max. capacity (R116): up to 4,500 l/min
• Max. capacity (R136): up to 5,000 l/min
• Max. operating pressure: up to 5 bar
• Pump chamber material: gray cast iron (standard); ADI / stainless steel optional; duplex or nickel alloys on request
• Wear protection: axial wear plates made from high-strength special steel
• Lobe materials: NBR, NBR white, EPDM variants, CSM, FKM, PU, stainless steel, nitrided steel
• Lobe geometries: straight, double-wing, 3/4/6-wing, HiFlo
• Operational advantages: self-priming, dry-run resistant, reversible flow, low pulsation