Features & Benefits
Lobeline Rotary Lobe Pump is designed with features that provide maximum uptime
OPTIONAL SEALED GEARBOX DESIGN
In addition to the front bearing isolator, the timing port plate can be fitted with a labyrinth seal along with sealed expansion caps in place of the traditional vents. These optional features (not shown) allow the gearbox to be fully immersed in flood conditions, or to function in extremely humid environments.
AXIALLY-SPLIT STUFFING BOX
Simplifies the removal and replacement of packing and lantern ring.
OPTIONAL RADIAL WEARPLATES
Upper and lower wear plates patented design eliminate casing replacement. Retained via a series of externally-sealed fasteners which allow pump to be serviced in place.
TAPER LOCKING ASSEMBLIES
Used on rotors and gears to simplify removal and refitting.
TIMING PORT PLATE
Located at the drive end, it permits easy entry to the taper locking assembly (eliminating the need to remove the gearcase cover), allowing pump to be re-timed in the event of a blockage within the pump casing. No more worries about oil drain-down!
HOOKED SHAFT SLEEVES
Hooked stainless-steel sleeves protect the tool-steel shaft, providing full corrosion protection. Sleeves are hardened for packing applications. O-ring seals keep liquid completely away from the shaft.
LABYRINTH BEARING ISOLATOR
Stainless steel construction eliminates ingress of liquid into the gearbox. Double-lip oil seal retains oil; grease nipple allows grease input to act as barrier within the labyrinth. Functions in static or running state.
OPTIONAL REAR WEARPLATES
Upper and lower plates to protect casing. Retained via a series of externally- sealed fasteners.
FRONT-LOADING SEAL AREA
Allows the hardened shaft sleeves or mechanical seals to be removed cartridge style through the front of the pump—without removal of the casing.
Lobeline™: Heavy-Duty, Self-Priming Industrial Rotary Lobe Pumps
LOBELINE™ is designed for superior pumping capabilities in a wide range of industrial applications. Choose from 8 models, each available in 12 sizes to suit a variety of operating conditions. Both bare pump and complete pump and drive packages are available. With interchangeable seal arrangements and a selection of wet end metallurgies and designs for your specific application, LOBELINE offers the perfect engineered pumping solution to meet your needs.
- Capacities to 2310 GPM (524 m3/hr)
- Pressures to 150 PSIG (10 bar)
- Temperatures to 212° F (100° C)
- Fluid Viscosities up to 1,000,000 cps
Lobeline™ is a Positive Displacement Pump with the following
operational
features:
Pump Runs Dry
Non-contacting pumping elements allow periodic use without fluid. Excellent for fluid transfers from tank to tank. Requires no flow indication equipment as used on Screw (Progressive Cavity) pumps that would cease and malfunction if run dry.
Low Shear Action
Smooth tri-lobe geometry provides gentle rolling action enabling shear sensitive fluids to be pumped with minimal damage.
Reversible Flow
Ability to utilize pump in both directions excellent for purging lines or changing pumping system requirements enabling greater process control.
Gas/Air Entrained Fluids
Lobe design can easily handle fluid containing gas/air. Centrifugal pumps are low on efficiency and are prone to losing prime.
Pump Jamming
With LOBELINE simply remove the front cover plate to inspect or clear the pump blockage. Many other pump types such as Screw (Progressive Cavity), Flexible Member (Hose), Plunger, Diaphragm if jammed require substantial disassembly to simple inspect or clear blockages.
Solids Handling
Ability to handle incompressible solids up to 31⁄2″ (90mm) suspended within the fluid.
Metering/Controlled Flow
Provides smooth predictable flow with minimal pulsation or surging when faced with varying pressures. Does not require pulsation dampeners like Plunger, Diaphragm type pumps.
Power Consumption Expense
Lobe pumps require less power due to the non-contacting design. Screw (Progressive Cavity) due to their design require higher start up and running horsepower. Centrifugal pumps require increased power on viscosities greater that 300-500 cps.
Pump Installation Space Problem
Lobe pumps require substantially less floor space than traditional Screw (Progressive Cavity and Plunger type pumps.
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