Screw Pumps

The family of NOTOS Multi Screw Pump (MSP) has a superior quality to meet the demands of high standards of our customers. Having the NETZSCH High Efficiency Unique Design (HEUD), the multiple screw pump covers a wide range of applications. The pumps are designed to work with low to high lubricant fluids, low to high viscosity, shear sensitive and/or chemically agressive media.

Material

  • Housing: cast iron
  • Screws: nitride steel
  • Bushings: bronze
  • Optional materials upon request

Characteristics

  • Hidraulically balanced
  • High suction power (up to 8 m.a.s.l.)
  • Quiet operation
  • Continuous flow without pulsation
  • Flow without turbulence
  • Mechanical seal under suction pressure
  • No foaming
  • Low maintenance
  • Low lifecycle cost
  • Long lifetime in service
  • Hidrodynamic bearings

2 NS – Two Screw Pump

This pump operates with a drive screw intermeshing with a driven screw transferring torque from one to the other. The screws are surrounded by the pump housing made of ferrous material. The screw geometry and the housing form the pumping chamber. Rotation, screw diameter, and screw pitch define the pump‘s flow rate. The product lubricates the internals. Four special bushings keep the screws aligned. The axial force resulting from the pumping motion is practically nil due to the pump’s hydraulic balancing.

The NOTOSTM Two Screw Pumps have a drive screw intermeshing with a driven screw, transfering torque from one screw to the other.

  • Flow up to 500 m/h³ (2200 gpm)
  • Pressure up to 16 bar (230 psi)
  • Temperature up to 300°C (570°F)
  • Viscosity up to 12,000 cSt

The main advantages are hydraulically balanced, quiet operation, long lifetime in service and flow without pulsation.


3 NS – Three Screw Pump

This pump operates with a drive screw intermeshing with two driven screws transferring torque from one to the other. The screws are surrounded by the pump housing made of ferrous material. The screw geometry and the housing form the pumping chamber. Rotation, screw diameter, and screw pitch define the pump‘s flow rate. The product lubricates the internals. Four special bushings keep the screws aligned. The axial force resulting from the pumping motion is practically nil due to the pump’s hydraulic balancing.

The NETZSCH Three Screw Pumps have one drive screw intermeshing with two driven screws, transfering torque from one screw to the others.

  • Flow up to 200 m/h³ (880 gpm)
  • Pressure up to 80 bar (1160 psi)
  • Temperature up to 300°C (570°F)
  • Viscosity up to 10.000 cSt

The main advantages are high efficiency, easy maintenance, lightweight, small footprint and pulsation free operation


4 NS – Four Screw Pump (geared twin)

Two shafts with four screws rotate inside a cartridge. The screws do not touch each other, and do not touch the cartridge. Therefore there is no metal-to-metal contact in this pump type. Synchronization of the two shafts is effected by a pair of timing gears remote from the pump chamber. The fluid is pumped from the extremities towards the center. The pumping chamber is formed by the four screws and the cartridge.

The NOTOSTM Four Screw Pumps (Geared Twin Screw Pumps) have two shafts with four screws rotating inside a cartridge with timing gears. No contact metal against metal.

  • Flow up to 1500 m/h³ (6600 gpm)
  • Pressure up to 80 bar (1160 psi)
  • Temperature up to 300°C (570°F)
  • Viscosity up to 50.000 cSt

The main advantages are that there is no metal contact, complies with API 3rd edition, small footprint and long operational lifetime.

The family of NOTOS Multi Screw Pump (MSP) has a superior quality to meet the demands of high standards of our customers. Having the NETZSCH High Efficiency Unique Design (HEUD), the multiple screw pump covers a wide range of applications. The pumps are designed to work with low to high lubricant fluids, low to high viscosity, shear sensitive and/or chemically agressive media.

Product Description

The family of NOTOS Multi Screw Pump (MSP) has a superior quality to meet the demands of high standards of our customers. Having the NETZSCH High Efficiency Unique Design (HEUD), the multiple screw pump covers a wide range of applications. The pumps are designed to work with low to high lubricant fluids, low to high viscosity, shear sensitive and/or chemically agressive media.

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