NEMO® BO/BS progressing cavity pump with hopper, designed for efficient handling of thick and crumbly materials in various industries.
NEMO® PROGRESSING CAVITY PUMPS

NEMO® BO/BS Pump With Hopper in Block Construction

Ideal pump for crumbly media in compact design for nearly all branches of industry

The NEMO® BO/BS progressing cavity pump with hopper and coupling rod with feeding screw as well as force-feed chamber for improved product feed into the conveying elements is used for applications in the environmental technology, food and chemical industries.

The NEMO® BO/BS is particularly suitable for shear-sensitive, lubricating and non-lubricating, thixotropic, dilatant, highly viscous and crumbly media that do not tend to bridge, as well as for slowly flowing to non-free-flowing media with and without solid content. The difference between the BO/BS types lies in the inlet hopper. The BO series has a rectangular inlet hopper and the BS series has a square inlet hopper. Both pump types are used in almost all branches of industry for continuous, pressure-stable, gentle and low-pulsation conveying. This special design ensures a better product feed into the conveying elements. In addition, the progressing cavity pump ensures speed-proportional dosing of almost all media. In block construction with a flanged drive, this pump is particularly compact and economical.

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Advantages

Easy serviceability due to innovative design of the pump
Geometries
Various rotor and stator geometries as well as a large spectrum of materials
Standards
Pump connections in accordance with national and international standards

Technique

Industrial screw pump with motor, showcasing the intricate design and functionality for efficient fluid movement.
  • Variable modular system
  • Robust and compact block construction
  • The right joint for any application
  • Standard mechanical seal, other seals optional
  • Gentle product conveyance
  • Pump connections in accordance with national and international standards, as well as in specially designed models
NamePressure max. (bar)Capacity min. (m³/h)Capacity max. (m³/h)Speed (rpm)
NM015 BO/BS120,010,7up to 800
NM021 BO/BS120,042up to 800
NM031 BO/BS120,15up to 600
NM038 BO/BS180,2512up to 600
NM045 BO/BS180,520up to 550
NM053 BO/BS180,830up to 550
NM063 BO/BS181,440up to 500
NM076 BO/BS182,555up to 350
NM090 BO/BS183,580up to 300
NM105 BO/BS127,5120up to 250

Further sizes and technical data on request.

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Thanks to our worldwide service network, we are ready for you around the clock in case of an emergency.

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FAQ progressing cavity pumps

Progressing cavity pumps are particularly suitable for pumping highly viscous, abrasive, solid-laden or shear-sensitive media. Typical applications include the chemical, food, environmental, paper and building materials industries, as well as the oil and gas sector.

NEMO® progressing cavity pumps from NETZSCH Pumps & Systems are characterised by gentle, low-pulsation pumping, high dosing accuracy and a wide range of applications. They enable a constant delivery rate even with changing pressures and media compositions.

Progressing cavity pumps can be used to convey low-viscosity to highly viscous media, including slurries, suspensions, pastes, media with a high solids content, and sensitive or gas-laden liquids.

Yes, progressing-cavity pumps are self-priming and exhibit excellent suction performance. This makes them ideal for applications with changing fill levels or difficult suction conditions.

NEMO® progressing cavity pumps are available in numerous designs, including block, hopper and hygienic versions. In addition, various materials, seal variants, and rotor-stator combinations are available to optimally adapt the pump to the respective application.

Maintenance requirements are low and predictable. Wear parts such as the rotor and stator can be easily replaced. Maintenance-friendly designs enable short downtimes and high plant availability.

The service life depends on factors such as the medium, speed, pressure and choice of materials. Professional design and the use of original spare parts ensure a long service life and economical operation.

All relevant original spare parts are available for progressing cavity pumps from NETZSCH Pumps & Systems, including rotors, stators, seals, joint parts and other wear-related components. The spare parts are precisely matched to the pump design and ensure high operational reliability.

The correct spare part can be identified by the machine number, serial number, or item number. Spare parts lists, sectional drawings and the operating and maintenance instructions also provide support. Alternatively, the NETZSCH Pumps & Systems service team can provide expert advice on selecting the right original spare part.

The experts at NETZSCH Pumps & Systems will assist you in the design, selection and integration of the right progressing cavity pump – tailored to your specific pumping tasks and process requirements.

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