The BTHE hopper pump is characterized by vertical hopper walls and a large-diameter ribbon screw in the hopper. In contrast to the BTH, the ribbon screw and the rotating unit are controlled by only one drive unit. Thanks to the large screw diameter, even media that tend to bridge can be conveyed without any problems. The pump can optionally be equipped with Drive Joint Access.
NO BRIDGING Thanks to the centrally oriented, edge-to-edge ribbon screw with a large diameter and elongated pitch
IMPROVED FLOWABILITY Thanks to the very large screw conveyor, even for products with little or no flowability
OPTIMUM PRODUCT CONVEYANCE Conveyance of the optimal flow rate to the downstream rotating unit by compressing the medium in the compression zone
EASY MAINTENANCE Simple dismantling of the compression casing for servicing work and optional Drive Joint Access for simple access to the drive-side joint
VARIABLE Available in block design with directly flanged-on drive system, or as a variant with free bare shaft and plug connection
Technologies, Accessories and Options
Technology
Accessories
Options
Pressure Branch
With gauge connection. Flange connections alternatively to DIN or ANSI.
Rotor
Optimized compression between the rotor and stator using wear-resistant and corrosion-resistant materials. A wide range of alloys, coatings and elastomers are available for each.
6L geometry
With a small rotor diameter and a long pitch, the 6L geometry attains lower surface velocities and extends the service life due to its large sealing line.
Conventional geometry
With short pitches and a compact design, the conventional geometry produces high pressures.
Stator
The seal on both ends is moulded as an integral part of the elastomeric stator; corrosion of the stator tube is never a problem because the pumped liquid never comes into contact with the metal tube or the bonding adhesive. Available with optional adjustable stator retensioning device.
6L geometry
With a small rotor diameter and a long pitch, the 6L geometry attains lower surface velocities and extends the service life due to its large sealing line.
Conventional geometry
With short pitches and a compact design, the conventional geometry produces high pressures.
Tie bolts/screw
Corrosion proof, optional available in stainless steel design.
Shaft sealing
Packing or mechanical seals are available in many material combinations.
Full screw
Auger feed screw reduces backflow of medium, ensuring optimized filling of the pump cavities.
Universal joint sleeve protection
Made from stainless steel and protects the joint against mechanical damage.
Compression casing
Ensures optimal feeding of the media. Quick and easy maintenance: available as a conical compression casing in conjunction with Smart Conveying Technology or as a sliding compression casing.
Coupling rod
With progressive pitch auger feed screw for power transmission and feeding of viscous products.
Ribbon screw
Concentric feed screw with maximized pitch length which self cleans the hopper walls, prevents bridging of the medium in the feed hopper and enhances feeding of the pumping elements.
Feed hopper with liner
With vertical hopper walls and a generous cross section. The hopper liner stabilizes the ribbon screw and protects it against wear. The hopper length can be individually fabricated.
Flush connection
Connection for cleaning, emptying or diversion.
Lantern
For connection of pump and drive and to secure the assembly to the baseplate or directly to the foundation.
Drive
Geared motors, variable speed drives or frequency controlled motors of all major manufacturers, directly flanged to the pump without additional couplings or guards. Covers made of stainless steel are available.
Overpressure Protection
The pressure gauge switches off the pump as soon as a pre-set pressure is exceeded or not reached and protects the pump from increased wear and tear or piping damage.
Dry-running protection device (TSE)
TSE monitors the temperature of the rotating stator and shuts down the pump when the limit value is reached to protect the pump from dry running.
Retensioning device
With this device, a worn stator can be evenly readjusted at several points so that the clamping between the rotor and stator is once again optimal and the pump performance increases.
Retrofit Kit SCT
With the Retrofit Kit, many standard and open hopper pumps can be upgraded to Smart Conveying Technology (SCT).
Standard Gland Packing
Universal seal for hopper and standard pumps for sealing the plug-in shaft and suction casing or feed hopper. Also available with grease or lantern ring to shut off the media flow. Can also be supplied with upstream labyrinth seal and additional flush connection or lubricating device.
Single-acting mechanical seal
Universal standard mechanical seal for dosing, food applications and semi-submersible pumps for sealing the plug-in shaft in the suction casing or the hopper.
Cartridge mechanical seal
Ready-to-install pre-assembled units with supply connections and attachment brackets for quick replacement.
Universal joint sleeve protection
Stainless steel protective housing protects the universal joint sleeve from mechanical destruction by rough parts made of plastic, metal, wood, etc. Up to 10,000 operating hours guaranteed.
Standard base plate
Short base plate B with geared motor for all standard applications.
Drive Joint Access (DJA)
The optional sliding casing allows access to the drive side's universal joint for quick maintenance.
