Archimedean screw pumps

The Archimedean screw pump can certainly claim to be the oldest pump as far as the transport of liquids is concerned. In the third century before Christ Archimedes, the Greek mathematician and scientist invented the â Archimedean screwâ which was used at that time to lift water. Traditional characteristics such as - high operational safety - reliability - long serviceability are bywords for the â Archimedean screw pumpâ. Optimum efficiency, even in the partial load range guarantees considerable economy. Archimedean screw pumps are the ideal choice to lift high capacities up to fixed heads. Large passages and the open screw make it possible to handle solids laden liquids without the danger of a blockage. Slow speeds prevent premature wear and are also beneficial for delicate media. Self-regulating adjustment of screw pump capacity to varying inflow volume at constant speed ensures even loading of the treatment plant without additional control mechanisms. Self-regulating adjustment of screw pump capacity to varying inflow volume at constant speed ensures even loading of the treatment plant without additional control mechanisms. TOP BEARING Generously rated grease lubricated ball/roller bearings located in a cast iron housing absorb the axial and radial forces of the Archimedean screw pump. Occurring forces will be led to the solid base. BOTTOM BEARING Grease lubricated journal bearing which enables continues operation under more difficult conditions in waste water applications. The robust dimensioned journal shaft and the highly durable renewable bearing bush in special bronze with low friction properties are determined by the maximum radial forces occurring as well as axial expansion due to ambient temperature changes. During operation the bottom bearing is fed continuously with grease from an automatic lubricator and hermetically sealed against ingress of the surrounding liquid. eco-line bearing arrangement The eco-line bearing is a fully enclosed, maintenance-free and environmentally-friendly screw conveyor bearing. A multi-stage sealing system reliably prevents the conveying medium from penetrating into the bearing, thus ensuring a long service life. The permanent lubrication of the anti-friction bearing stops the conveying medium being polluted by lubricating grease. Deployment of the eco-line bearing therefore saves energy and maintenance costs and avoids the consumption of lubricating greases. The eco-line bearing can be retrofitted to all existing plant without any fuss. HELIX Screw blades are continuously multiple-thread welded onto a rigid support pipe with sealing covers welded water-tight. The top and bottom bearing arrangements are bolted onto the sealing covers and can thus be dismantled. SURFACE TREATMENT For surface treatment of helix and respective accessories are different systems and paint variants for various requirements available. DRIVE UNIT The drive unit of a screw conveyor trough pump consists of an electric motor, gearbox, anti-runback device, V-belt drive between gearbox and motor, an elastic coupling and all safety fixtures. Different gearbox models are deployed depending on the torque requirements and the installation situation. The V-belt drive used allows the conveying performance to be easily adjusted. If automatic, speed-optimised adjustment of the conveying performance is required, the drive unit is prepared for frequency converter operation, or a motor is deployed with an integrated frequency converter. CONCRETE TROUGH The most frequently used design is the stationary open concrete trough which is cast in suit with concrete provided by a civil contractor. The concrete trough is shaped (profiled) by a rail attached to the Archimedean screw pump. This ensures an accurate and even gap between helix and trough over the entire length of the concrete bed. STEEL TROUGH Another alternative to conventional cast-in-place concrete troughs is the screw-trough pump construction made of steel plate. This design makes it possible to use

Centrifugal pumps

Competence in waste water technology. For several decades we have been specialists in the transportation of communal and industrial waste water for sewage treatment plants as well as house and garden drainage. We are suitable contact partners everywhere that waste water must be moved and where there is a need for reliability and efficiency. Our systems are predominantly equipped with Ritz products, as they have an extensive range of pumps for transporting waste water. We are certiainly able to supply and delives pumps of other well-known manufacttures. Ritz-Atro solves your waste water problems comprehensively.

Hydrodynamic screws

The new type of energy generation In the form of the Archimedean screw, the water extraction screw has been known since ancient times. What is new is the patented application, which by an inversion of the energy flow in its operation, turns the Archimedesâ screw trough pump into a power generator for the extraction of energy. A water power generating facility makes use of the energy difference between two different levels of flowing water by transferring the water from natural bed of the stream at the higher level to the bed at the lower level and effectively extracting its potential energy, which is then made available at the rotor shaft for further use.

Propeller pumps

Competence in the building of rain and flood pump stations Wherever large amounts of water must be moved at a relatively low delivery head, wherever complete reliability is required in the event of flood water and where there is also a demand for efficiency. Product range / Dry and wet installation We are suitable contact partners with our vertical, single-stage axial or semi-axial tube housing propeller pumps with a suspended design (where the drive is usually powered by a diesel engine). Operative ranges /Application areas Flood mitigation, rainwater pump installations, polder pump installations, sewage treatment plants, sluice pump installations, supply of cooling water to power plants and industrial installations, agricultural irrigation, sectors of municipal or industrial drinking water and process water.