Archimedean spiral pumps are designed for pumping sludge and polluted liquids without their pretreatment. The principle of operation of these pumps is by rotating of the blades to transport the medium to a higher level. Large passages make the Archimedean pumps possible to handle with solid liquids without any danger of a blockage in the process. One of the main benefits of these pumps is inability to cause a cavitation and since they are operated on a low speed there is almost no efficiency loss.
Depending on what type of water is being transported, the life time of these pumps can be from 30 to 40 years.
Depending on the required features there can be made different drive-unit arrangements. The standard drive-unit consists electric motor connected to the reduction gearbox which is connected with the upper bearing of the screw pump.
The upper bearing main role is to accommodate axial and radial forces. This bearing is designed as a self-aligning roller bearing.
The lower bearing housing flange is connected to the screw body. Main role of the lower bearing is to accommodate only radial loads. During the operation this bearing is lubricated with grease by the automatic lubricator. The lower bearing is hermetically sealed for protection from the liquids.
The screw has the most important role, by rotating the screw lifts and transports the medium at higher levels. Screw body is usually made from longitudinally or spirally wound steel tubes.
Screw Pump in a Concrete Trough, where the screw, suspended between the upper and lower bearing, rotates free from the trough with a minimal gap of few millimeters.
Capacity: up to 680l/s
Head: up to 210m
Temperature: up to 60°C
Archimedean screw pumps offer wide application possibilities:
Typical applications are:
Materials and coating:
Screw pumps can be produced from coated steel or stainless steel.
|Item||Application||System||Thickness in µ|
|Standard||Activated sludge||Send blasting SA 2,5|
|2 x 150|
|Auto cure||Waste water||Send blasting SA 2,5|
Zink primer Epoxy coating
|1 x 40|
2 x 150
|Heavy Duty||Sand & Particles||Send blasting SA 2,5|
|1 x 40|
1 x 40
2 x 150
|Cover coating||H2S occurrence||Send blasting SA 2,5|
Epoxy special coating
|2 x 175|
Optional materials: Cast iron (Gray, Ductile), Cast steel, SS (AISI 304, 316), Duplex SS, Super duplex SS, Bronze, AI, or other on customer request.
Our prime goal – to make our customers’ equipment work more efficiently and trouble-free.
Each product – susceptible to installation and commissioning by a specialized work team;
ALLRUS Maschinenhandels GmbH – Austria
Production and delivery of End Suction Centrifugal pump according to API 610 standards type OH1, for propose of needs of Petro Company in Kazakhstan.
In the decision process of choosing an adequate representative company we will be evaluating several criteria: its reputation on the specific market, sales organization and after sales service capability, use of promotional and communications tools, the financial strength and size of the company, the existence of physical facilities and willingness to carry inventories, and the trading areas covered and the compatibility of represented companies with our product range.
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