Always the right speed: Because the ribbon screw of the BTH hopper pump from SEEPEX has its own separate second drive system, it can be operated at a different speed from the rotating unit. Thanks to the large diameter and elongated pitch of the edge-to-edge ribbon screw, even media that tend to bridge can be conveyed without any problems.
OPTIMAL SPEED The speed is always optimally adjusted to the medium thanks to the separately driven ribbon screw in the hopper, which is operated at a different speed
NO BRIDGING The centrally oriented, edge-to-edge ribbon screw has a large diameter and elongated pitch, ensuring no bridging takes place with highly viscous or semi-solid media
OPTIMUM PRODUCT CONVEYANCE Conveyance of the optimal flow rate to the downstream rotating unit by compressing the medium in the compression zone
EASY MAINTENANCE Quick and simple maintenance thanks to the easy dismantling of the compression casing
CONSISTENT VISCOSITY Thanks to the low speed of the screw conveyor and rotating unit when transporting media that is sensitive to shearing
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.
Conventional geometry
With short pitches and a compact design, the conventional geometry produces high pressures.
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.
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.
Conventional geometry
With short pitches and a compact design, the conventional geometry produces high pressures.
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.
Tie bolts/screw
Corrosion proof, optional available in stainless steel design.
Compression casing
Conical casing ensures optimal feeding of the medium into the conveying elements. Optional sliding compression casing for quick and easy maintenance.
Full screw
Auger feed screw reduces backflow of medium, ensuring optimized filling of the pump cavities.
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.
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.
Flush connection
Connection for cleaning, emptying or diversion.
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.
Standard base plate
Short base plate B with geared motor for all standard applications.
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.
Rotor Joint Access (RJA)
Sliding separate casing with enlarged cross section ensures quick and easy maintenance.
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.
Cartridge mechanical seal
Ready-to-install pre-assembled units with supply connections and attachment brackets for quick replacement.
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.
