NEMO® BF with Feeding Screw

NEMO® BF Open Throat Progressing Cavity Pump with Auger

Solution for highly viscous and crumbly substances that do not tend to bridge-building

The NEMO® BF is used in all industrial markets to provide continuous, pressure-stable, gentle and low-pulsation handling with metering in proportion to rotation speed. This pump is used primarily for highly viscous, compacted and crumbly substances that do not have a tendency to bridge.

For optimal feed into the pumping elements, the pump housing is designed with an enlarged, rectangular hopper and conical force-feed chamber as well as a special coupling rod with a patented, horizontally positioned auger.
In block construction, this pump is particularly compact and economical.

Features of the NEMO® BF Open Hopper Progressing Cavity Pump

  • pump housing with enlarged rectangular hopper
  • conical force-feed chamber
  • special coupling rod with patented, horizontally positioned auger
  • continuous low-pulsation handling unaffected by fluctuations in pressure and viscosity
  • capacity in proportion to rotation speed with precision metering over a wide speed range
  • high pressure capability without valves
  • stator with hopper-shaped entrance for optimal filling of the conveying chamber

NEMO® BF Open Hopper Progressing Cavity Pumps offer you:

  • gentle product handling
  • pump connections in accordance with national and international standards, as well as in specially designed models
  • easy serviceability

Advantages of the NEMO® BF Open Hopper Progressing Cavity Pump

  • modular design
  • a wide variety of materials
  • robust and compact block construction
  • the right joint for any application
  • standard mechanical seal, other seals optional

Everything from a single supplier
For the various applications in your processes, NEMO® Progressing Cavity Pumps and NETZSCH TORNADO® Rotary Lobe Pumps are available from a single source!

Take advantage of our decades of experience and expertise in positive displacement pump manufacture.  

NEMO® BF with Feeding Screw

1 Rotor
In wear- and corrosion-resistant designs.

2 Stator
Vulcanized into the tube with sealing on both sides in a variety of elastomers, plastics and metals. Stator inlet with chamfered opening for improved feed of the product into the conveying chamber.

3 Drive Train
Drive and connecting shaft with a coupling rod with patented, horizontally positioned auger for optimal feed into the pumping elements.  Two universal joints for power transmission from the drive to the rotor.

4 Shaft Seals
Standard with single-acting, bi-directional, wear-resistant mechanical seal. Upon request, with single- or double-acting mechanical seals of varied designs and from various manufacturers, cartridge and special seals as well as packed glands.

5 Suction and Discharge Housing
Pump housing with enlarged rectangular hopper and conical force-feed chamber. The hopper dimensions can be adjusted to the individual application.

Flange and threaded connections in accordance with ANSI/NPT and international standards. Materials in steel, chrome-nickel-steel rubberized; also special materials upon request.

6 Block Construction
The drive is flanged directly to the pedestal of the pump, resulting in compact dimensions and low total weight.

The NEMO® BF Progressing Cavity Pump is available …

  • in various sizes for flow rates up to 1000 gpm
  • for differential pressures up to 750 psi
  • with custom hopper dimensions
  • in various materials, from steel to chrome-nickel-steel to highly acid-resistant materials such as duplex, Hastelloy and titanium
  • with various stator materials, from highly abrasion-resistant natural rubber, oil-, acid-, and alkali-resistant elastomers, Aflas and Viton.
  • in S-Geometry for gentle conveyance and secure operation
  • with a variety of mechanical shaft seals and packed glands as well as special seals 

…and handles

  • highly viscous, compacted and crumbly substances that do not have a tendency to bridge
Size*

Capacity min.

(gpm)

Capacity min.

(m³/h)

Capacity max.

(gpm)

Capacity max.

(m³/h)

Max. pressure

(psi)

Max. Pressure

(bar)

Speed

(rpm)

NM045 BF

1.9

0.4

29

7

720

48

300

NM053 BF 3.3 0.7 49 11 720 48 300
NM063 BF 5.5 1.2 82 19 720 48 300
NM076 BF 9.2 2.1 138 31 720 48 300
NM090 BF 15.5 3.5 232 53 720 48 300
NM105 BF 25.9 5.9 389 88 720 48 300

*Additional sizes and technical data on request.

  • Gentle product conveyance
  • Pump connections according to national and international standards, as well as in special design
  • Easy serviceability
  • Variable, modular construction system
  • Wide range of materials
  • Robust and compact block design
  • The right joint for every application
  • Mechanical seal as standard, other seals optional

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NEMO® BF Hopper-Shaped Progressing Cavity Pump With aBP-Module®

The NEMO® BF hopper-shaped progressing cavity pump with aBP-Module® to prevent bridging is used in all branches of industry for continuous, pressure-stable, gentle and low-pulsation conveyance as well as dosing in proportion to speed, especially for highly viscous, compacted and crumbly media.

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Brochure

Intelligent solutions for a clean environment.

Brochure

Comprehensive and uncompromising solutions for all industries.

Brochure

NEMO® BF pumps are designed to handle high-consistency products with a low

degree of flowability. NEMO® BF pumps provide continuous, pressure-stable, gentle

and low-pulsation conveyance with metering in proportion to rotational speed.