Pumps
RL-20 Rotary-Lobe Pump
RL-20
Rotary-lobe pump for viscous and shear-sensitive products.
Flow rate
Up to 80
m³/h
Max. differential pressure
12
bar
Viscosity
Up to 100,000
mPa·s
Fluid temperature
-10 to 150
°C
Overview
The RL-20 uses two counter-rotating lobes in a swept chamber. The pump moves product with low shear and nearly constant flow per revolution, so speed sets the flow.
A front-cover design opens the pumping chamber for cleaning or inspection without pipework removal.
Key features
Front-loading cover for inspection
Low-shear, near-linear flow-to-speed
Reversible flow direction
Gearbox and motor on common baseplate
Datasheet
Technical specifications
Illustrative demonstration data. Units are shown with each value; confirm all duty and material data against the project datasheet before specifying.
Performance
Flow range
0.5 – 80 m³/h
Performance
Max. differential pressure
12 bar
Performance
Speed range
50 – 700 rpm
Connections
Inlet / outlet
DN 40 – DN 150
Drive
Motor power
0.75 – 37 kW
Operating limits
Viscosity
Up to 100,000 mPa·s
Operating limits
Fluid temperature
-10 to 150 °C
Mass
Pump with baseplate
95 – 620 kg
Materials of construction
Housing
Stainless steel 316
Lobes
Stainless steel with elastomer coat
Shaft seal
Single or flushed mechanical
Gearbox
Cast iron, oil-lubricated
Standards
Design reference: hygienic design principles (illustrative)
Operating conditions
Viscous, shear-sensitive and particulate-bearing products.
Applications
Industries
Tell us the duty point and we will propose the equipment.
Send flow, head or pressure class, fluid and temperature. A demonstration form: connect your own destination before launch.