Series Medium Pressure Screw Pumps SN from the company Allweiler They are designed to work with substances of various natures in a wide range of viscosity and temperature values. Self-priming, they are used in applications with high flow rates in a wide range of industry areas. The rotor design is based on three screws: one main drive screw and two idling screws for sealing. The rotation of the screws is carried out without mechanical action relative to each other, which allows you to maintain low noise and vibration. Extra durable design using hardened materials, ring and mechanical shaft seals. All structural components are perfectly balanced, axial loads are smoothed out, radial loads are excluded.
Both dry and practical submersible installation of the pump in the tank is possible, several types of installation solutions are available - SNH/SNGH, SNF/SNGF, SNS/SNGS (detailed information is provided in the attached catalog). Heating systems (electric, steam or liquid heaters) can be integrated to pump substances that solidify during cooling. The drive uses standard three-phase electric motors with a B3 or V1 design, with IP55 enclosure protection and surface cooling.
Pumping liquids: lubricants, crude oil, fuels, hydraulic fluids, refrigerants, emulsions, paints, varnishes, resins, waxes, syrups, etc.
Limitations: no abrasive particles, contact with chemically aggressive agents.
Areas of application: hydraulics, power engineering, mechanical engineering, chemical industry, oil refining, printing, food industry, marine applications and others.
Technical characteristics of Allweiler SN three-screw pumps
- Volume consumption: up to 5,300 l/min;
- Supply Pressure (PD): up to 100 bar;
- Differential pressure: up to 100 bar;
- Viscosity of the liquid: 3 - 5000 mm2/s;
- Liquid temperature: up to 250 °C;
- Speed: up to 3600 rpm;
- Installation: dry, submerged, horizontal /vertical.
Overall standard sizes of Allweiler SN screw pumps
SNH 40-38, SNH 40-46, SNH 40-54, SNH 80-36, SNH 80-42, SNH 80-46, SNH 80-54, SNH 120-42, SNH 120-46, SNH 120-54, SNH 210-40, SNH 210-46, SNH 210-54, SNH 280-43, SNH 280-46, SNH 280-54, SNH 440-40, SNH 440-46, SNH 440-52, SNH 440-54, SNH 660-40, SNH 660-44, SNH 660-46, SNH 660-51, SNH 660-54, SNH 940-42, SNH 940-46, SNH 940-50, SNH 940-50 940-54, 1300-38, 1300-42, 1300-44, 1300-46, 1300-54, 1700-42, 1700-46, 2200-42, 2200-46, 2900-40, 3600-46
SNGH 40-38, SNGH 40-46, SNGH 40-54, SNGH 80-36, SNGH 80-42, SNGH 80-46, SNGH 80-54, SNGH 120-42, SNGH 120-46, SNGH 120-54, SNGH 210-40, SNGH 210-46, SNGH 210-54, SNGH 280-43, SNGH 280-46, SNGH 280-54, SNGH 440-40, SNGH 440-46, SNGH 440-52, SNGH 440-54, SNGH 660-40, SNGH 660-44, SNGH 660-46, SNGH 660-51, SNGH 660-54, SNGH 940-42, SNGH 940-46, SNGH 940-50, SNGH 940-54, SNGH 1300-38, SNGH 1300-42, SNGH 1300-44, SNGH 1300-46, SNGH 1300-54, SNGH 1700-42, SNGH 1700-46, SNGH 2200-42, SNGH 2200-46, SNGH 2900-40, SNGH 3600-46
SNF 40-38, SNF 40-46, SNF 40-54, SNF 80-36, SNF 80-42, SNF 80-46, SNF 80-54, SNF 120-42, SNF 120-46, SNF 120-54, SNF 210-40, SNF 210-46, SNF 210-54, SNF 280-43, SNF 280-46, SNF 280-54, SNF 440-40, SNF 440-46, SNF 440-52, SNF 440-54, SNF 660-40, SNF 660-44, SNF 660-46, SNF 660-51, SNF 660-54, SNF 940-42, SNF 940-46, SNF 940-50, SNF 940-54, SNF 1300-38, SNF 1300-42, SNF 1300-44, SNF 1300-46, SNF 1300-54, SNF 1700-42, SNF 1700-46, SNF 2200-42, SNF 2200-46, SNF 2900-40, SNF 3600-46
SNGF 40-38, SNGF 40-46, SNGF 40-54, SNGF 80-36, SNGF 80-42, SNGF 80-46, SNGF 80-54, SNGF 120-42, SNGF 120-46, SNGF 120-54, SNGF 210-40, SNGF 210-46, SNGF 210-54, SNGF 280-43, SNGF 280-46, SNGF 280-54, SNGF 440-40, SNGF 440-46, SNGF 440-52, SNGF 440-54, SNGF 660-40, SNGF 660-44, SNGF 660-46, SNGF 660-51, SNGF 660-54, SNGF 940-42, SNGF 940-46, SNGF 940-50, SNGF 940-54, SNGF 1300-38, SNGF 1300-42, SNGF 1300-44, SNGF 1300-46, SNGF 1300-54, SNGF 1700-42, SNGF 1700-46, SNGF 2200-42, SNGF 2200-46, SNGF 2900-40, SNGF 3600-46
SNS 40-38, SNS 40-46, SNS 40-54, SNS 80-36, SNS 80-42, SNS 80-46, SNS 80-54, SNS 120-42, SNS 120-46, SNS 120-54, SNS 210-40, SNS 210-46, SNS 210-54, SNS 280-43, SNS 280-46, SNS 280-54, SNS 440-40, SNS 440-46, SNS 440-52, SNS 440-54, SNS 660-40, SNS 660-44, SNS 660-46, SNS 660-51, SNS 660-54, SNS 940-42, SNS 940-46, SNS 940-50, SNS 940-54, SNS 1300-38, SNS 1300-42, SNS 1300-44, SNS 1300-46, SNS 1300-54, SNS 1700-42, SNS 1700-46, SNS 2200-42, SNS 2200-46, SNS 2900-40, SNS 3600-46
SNGS 40-38, SNGS 40-46, SNGS 40-54, SNGS 80-36, SNGS 80-42, SNGS 80-46, SNGS 80-54, SNGS 120-42, SNGS 120-46, SNGS 120-54, SNGS 210-40, SNGS 210-46, SNGS 210-54, SNGS 280-43, SNGS 280-46, SNGS 280-54, SNGS 440-40, SNGS 440-46, SNGS 440-52, SNGS 440-54, SNGS 660-40, SNGS 660-44, SNGS 660-46, SNGS 660-51, SNGS 660-54, SNGS 940-42, SNGS 940-46, SNGS 940-50, SNGS 940-54, SNGS 1300-38, SNGS 1300-42, SNGS 1300-44, SNGS 1300-46, SNGS 1300-54, SNGS 1700-42, SNGS 1700-46, SNGS 2200-42, SNGS 2200-46, SNGS 2900-40, SNGS 3600-46