NEMO® BF Open Throat Progressing Cavity Pump with Auger

...your solution for pumping highly viscous, compacted and crumbly media

General

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.  


Technique

NEMO® BF hopper Pump with Feeding Screw – Design

NEMO® BF Open Throat Pump with Auger – Design in Block Construction

Our Design – Your Advantage: Easy Serviceability, Dependability, Operating Safety

1 Rotor
In wear- and corrosion-resistant designs including the wear-free ceramic rotor NEMO CERATEC®.

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

Applications

NEMO® BF Open Hopper Progressing Cavity Pump with Auger in Block Construction

Your pumping solution for highly viscous to compacted substances that do not have a tendency to bridge!

The NEMO® BF Progressing Cavity Pump with Auger can be employed for almost any highly viscous, compacted and crumbly substance that does not have a tendency to bridge. Another advantage of the NEMO® Progressing Cavity Pump is its capability of metering these substances in proportion to rotation speed. The NEMO® BF can be used in industrial markets for continuous, pressure-stable, gentle and low-pulsation handling.
In block construction with a close coupled, this pump is particularly compact and economical.

Wide Spectrum of Applications
The NEMO® BF with Auger Progressing Cavity Pump is used primarily for substances with the following properties:

  • highly viscous
  • compacted
  • crumbly
  • solid content
  • shear-sensitive
  • sticky or dry
  • thixotropic and dilatant
  • abrasive
  • adhesive

… such as
dewatered sludge, filter cakes, viscous pastes, entrails, bone pulp, sausage paste, whole fruit, dough, potato pulp, etc.

Additional Features:

  • low noise, low vibration

Large Range of Capacities and Pressures

  • adjustable capacities up to 1000 gpm
  • for differential pressures up to 750 psi

Picture shows an NEMO®BF pump with aBP-Module


Accessories

The following accessories are available for the NEMO® BF Open Hopper Progressing Cavity Pump:

  • dry running protection units for NEMOLAST® stators
  • flow sensing unit for solid stators
  • speed monitoring device
  • diaphragm pressure gauges with various connections
  • multi-function pressure instrument
  • quench pot
  • pressurized flushing for double mechanical seal systems
  • FLR system
  • anchor bolts
  • stator removal tool
  • adjustable feet
  • mobile and trailer mounted units
  • covers for drives
  • electrical control systems

 

 

 


Literature


You may also be interested in:

NEMO® BO Open Throat Progressing Cavity Pump in Block Construction

The NEMO® BO Progressing Cavity Pump with square/rectangular hopper and coupling rod with auger and force-feed chamber is employed in almost all industrial markets to provide continuous, pressure-stable, gentle and low-pulsation conveyance.

NEMO® C.Pro®

The NEMO® C.Pro® Metering Pump is a fully synthetic pump for the precise metering of a great variety of chemicals in environmental and chemical industries. Its synthetic construction makes it perfectly suited for the gentle and low-pulsation handling and metering of aggressive or non-aggressive chemicals.