Barrel Emptying System with NEMO® BH Pump

Barrel Emptying System with NEMO® BH Pump

Independent hygienic container emptying with a minimum of residual content

NEMO® barrel emptying systems for hygienic applications are highly versatile and automatically suck themselves towards the bottom of the barrel. With the emptying systems from NETZSCH, you convey directly from barrels and containers with an absolute minimum of residue.

The central element of the hygienic container emptying system is a NEMO® BH progressing cavity pump, which enables constant and low-pulsation pumping. The hygienic pump conveys media with a wide range of properties gently and independently of pressure and viscosity fluctuations. No challenge is too difficult for the NEMO® BH: even low-viscosity to barely flowing media, with or without solids content, and shear-sensitive, sticky or abrasive materials present no problems for the progressing cavity pump. With the optional heating or cooling jacket, you can also quickly convey products that tend to harden or require temperature control. By starting the pump, a vacuum is created under the follower plate. This also exerts a pre-pressure on the medium and thus ensures constant suction. The continuous delivery protects your system from shock loads and therefore reduces wear. In addition, emptying with a residual quantity of less than one percent is guaranteed. This significantly reduces waste, and you save costs at the same time. In this way, you can change the containers without the system coming to a standstill. In turn, you avoid high expenses due to downtimes.

Get a free offer for your application now!

Barrel Emptying System with NEMO® BH Pump

1 Rotor
Available in two geometries and with polished surfaces.

2 Stator with reduced wall thickness
For varying temperatures, a patented stator with reduced elastomer wall thickness is used. In addition, a thermal stator protector (STP-2 or STP-D) protects against overheating and dry running. Stator inlet with hopper-shaped opening to improve product entry into the conveying chamber.

3 Hygienic joints
Patented, open hygienic joints without dead space for optimal cleaning.

4 Drive chain
Drive and connection shaft with coupling rod and two hygienic joints for power transmission from the drive to the rotor.

5 Seal housing
Hygienic shaft seals with pressure-proof screwed shaft seal housing enable reversal of the direction of rotation up to the maximum pump pressure.

6 Protective tubing for stator
It is made of stainless steel (optional).

7 Block design
The drive is flanged directly to the pump lantern, resulting in compact dimensions, low total weight, constant shaft heights independent of the drive's design and size, low maintenance and high serviceability, as well as economy.


Pressure max.


Capacity min.


Capacity max.




NM003 BH










up to










up to 900

NM005 BH
NM011 BH
NM015 BH
NM018 BH
NM021 BH












up to












up to 450

NM031 BH
NM038 BH
NM045 BH
NM053 BH
NM063 BH

*Further sizes and technical data on request.

  • Hygienic design of the components and machines, as well as cleanability of the system parts
  • Delivery rates proportional to the speed
  • Constant, low-pulsation delivery prevents pressure reversal points or pressure drop in the line or system
  • Gentle conveying of challenging media
  • Residual quantity in the container after emptying less than one percent of the total quantity
  • Stainless steel, easy-to-clean design
  • Barrel can be changed without system downtime
  • Low life cycle costs combined with high serviceability

You may also be interested in:

Barrel Emptying System with NOTOS® 2NSH Pump

The heart of the barrel emptying unit is a NOTOS® 2NSH twin screw pump. With positive displacement it creates a low pulsation flow to convey the product without damage. 

NEMO® BH Hygienic Pump in Block Design

The NEMO® BH is employed in the foodstuff, pharmaceutical, cosmetic and chemical/biochemical industries for hygienic applications and optimal cleaning. It is ideal in these settings due in part to its continuous, pressure-stable, gentle and low-pulsation conveyance and in part to its capability of dosing in proportion to speed.

Barrel Emptying System with NEMO® BY Pump

NEMO® barrel emptying pumps suction themselves automatically to the bottom of the barrel or container to achieve almost residue-free emptying in the chemical, pharmaceutical and foods industries. 

NEMO® C.Pro Dosing Pump Made of Synthetic Materials

The NEMO® C.Pro dosing pump is a fully synthetic pump for the precise dosing of a great variety of chemicals in environmental technology and the chemical industry. Its synthetic construction makes it perfectly suited for the gentle and low-pulsation conveyance and dosing of aggressive or non-aggressive chemicals.