The RobuschiBOX evolution BIOGAS
This brand new range brings together three different versions, 
The heart of the ROBOX evolution BIOGAS  models 
consists of a lobe blower – RBS range – in the special gas-tight version.
Main technical features

• Pressure from 240 to 2850 m³/h
• Galvanised steel inlet silencer (stainless steel)
• Galvanised steel discharge platform balance silencer
• ATEX version non-return valve
• Tool panel diaphragm pressure gauges
• Tool panel delivery thermostat

the noise enclosure can be of the ATEX version, fitted with 
a condensate drainage device, and you can also choose 
an anti-corrosion device for the rotors and the components-
of the compression chamber.
The pressure regulator with its by-pass is also available
or with a 3-way relief valve with channelled discharge.
Materials
The main elements of the Blowers bodies, lobe and silencer 
can be made of various materials to better resist against the 
most severe operating conditions:

• Galvanised steel
• Stainless steel

Advantages

• Maximum efficiency
• Reliability
• Sturdiness
• Corrosion resistance
• Simple mechanics
• Long duration
• Compactness

Fields of applications
The Robuschi ROBOX evolution BIOGAS range 
has been developed for :

• Biogas
• Natural gas
• Landfill gas
• Power generation plants

The entire Robuschi BIOGAS range is certified and suitable

• applications of group II in category 2 
• area 1, both indoors and outdoors, and
• temperatures of class T3 (based on the ATEX standard).
• The platform balance PED certified*
• The inlet silencer PED certified*
• working pressure of at least 1.3 bar
• explosion proof at 12 bar.

*(Pressure Equipment Directive, the European directive
for pressurised containers that eliminate the risk of explosion)

RNS SERIES
Standardised ISO 2858 / DIN 24 256
Horizontal single stage centrifugal pumps with overhung impeller 
and axial suction,constructed using the "Back pull-out system" 
and available with six different sizes of support.
Main technical features

• Flow rate up to 2600 m3/h
• Discharge head up to 150 m
• Working pressure up to 14 bar
• Working temperature from -50 to +280°C
• Size from 3 to 300 mm

Advantages

• High levels of efficiency
• Reliability
• Long duration
• Compactness

Fields of applications
Conveying of clean liquids or those that are slightly dirty, 
chemically inert or aggressive, for:

• The chemical and petrochemical industry
• Mining and iron and steel plants
• The construction sector
• The paper and chemical wood pulp industries
• The pharmaceutical industry
• The textile industry
• The farm-food industry
• Thermo-electric power stations
• Desalination plants

Materials
The main elements of the pump bodies, impellers and covers 
can be made of various materials to better resist against the 
most severe operating conditions:

• AISI 304 stainless steel
• AISI 314 L stainless steel
• Cast iron
• On request it is possible to supply products made of 
  special nickel based alloys to resist against the chemically 
  more aggressive components such as sulphuric acid or
  hydrochloric acid

Shaft seal
Depending on the liquids conveyed, various types of mechanical
seal can be installed on all sizes of support bracket: simple,
balanced, double, in tandem, cartridge, with quench, etc.,
with standard circulation and flushing in accordance with 
the API Standard 610 norms.

New base frames
Robuschi has set up an innovative base for all of the pumps
of the 1st and 2nd bracket of the RN, RKN and E series.
This makes it much easier to perform the coupling 
operations between the pump and the electric 
motor and the electro-pump package installation
operations.
Advantages

• Ease of transmission joints alignment also 
  when the electro-pump package has already 
  been installed on the plant.
• Ease of motor replacement, also if the 
  replacement motor is larger or smaller.
• Limited distortion of the base during the 
  installation of the electro-pump package.
• Ease of anchoring the base to the floor.
• Possibility of setting up the drain pann version.
• Galvanized base for high resistance to corrosion.

CHANNEL PUMPS
RCN/RCPN SERIES
Horizontal single stage centrifugal pumps with overhung
impeller and axial suction, constructed using the 
"Back pull-out system" and available with four different 
sizes of support.
Main technical features

• Flow rate up to 800 m3/h
• Discharge head up to 75 m
• Working pressure up to 10 bar
• Working temperature from -30 to +140°C
• Size from 65 to 200 mm
• Flanges drilling UNI PN10

Advantages

• The channel impeller with wide inter-vane passages
  makes it possible to convey, without any danger of
  blockages, liquids containing particles in suspension,
  without fibrous materials, chemically inert or aggressive.
• Maximum efficiency
• Reliability
• Compactness

Fields of application

• The paper and chemical wood pulp industries
• The sugar industry
• The farm-food industry
• Waste water and sewage treatment plants
• The chemical and petrochemical industry
• The iron and steel industry
• The mining industry
• The construction sector

Materials
The RCN-RCPN pumps can be made both of cast iron or
AISI 304 or AISI 314 L stainless steel.
Shaft seal
The RCN-RCPN pumps can be equipped with various
types of seal:

• Soft packing with liquid barriage
• Mechanical seals (simple, balanced, double,
  cartridge, with quench ...,) with standard circulation
  and flushing in accordance with the API Standard 
  610 norms.
• Hydrodynamic seal: this is an innovative seal 
  comprising a secondary impeller installed behind
  the main impeller which makes it possible to 
  operate with particularly abrasive liquids or with
  solutions that easily deposit the solute.

VORTEX PUMPS
RKC/RKN SERIES
Horizontal single stage centrifugal pumps with 
over hung impeller and axial suction, constructed 
using the "Back pull-out system" and available 
with four different sizes of support for the RKC 
series and a single size for the RKN series.
The pumps function by making use of the 
induced vortex principle: the impeller, 
which is positioned further back than the 
pump body, because of its particular shape 
induces a vortex in the conveyed liquid which
expands in the body creating the pump 
discharge head.
Main technical features

• Flow rate up to 700 m3/h
• Discharge head up to 70 m
• Working pressure up to 10 bar
• Working temperature from -50 to + 140°C
• Environmental temperature up to 40°C
• Size from 65 to 200 mm
• Flanges drilling:
• UNI PN10 for RKC series
• UNI PN14 for RKN series

Advantages

• The open impeller, which is positioned further 
  back, with wide inter-vane passages makes it
  possible to convey, without any danger of 
  blockages, dirty or viscous liquids, liquids 
  containing particles in suspension or with fibrous 
  impurities, chemically inert or aggressive liquids
  and those with dissolved air and solutions with 
  crystals in suspension
• High performance levels
• Reliability
• Compactness

Fields of application
Because of their operating characteristics , the RKN 
and RKC pumps are particularly suited for use in the
following plants:

• The paper and chemical wood pulp industries
• The sugar industry
• The farm-food industry
• The textile industry
• Waste water and sewage treatment plants
• The construction sector
• The chemical and petrochemical industry
• The pharmaceutical industry
• Thermo-electric power stations

Materials
The RKN pumps are made of AISI 314 L stainless 
steel. The RKC pumps, on the other hand, can be 
made of AISI 304 or AISI 314 L stainless steel, 
or cast iron.
On request it is possible to supply products made 
of special nickel based alloys to resist against the 
chemically more aggressive components such as 
sulphuric acid or hydrochloric acid.
Shaft seal
The RKN pumps are equipped with soft packing 
seals but, depending on the liquid conveyed, simple, 
double, or in tandem mechanical seals can be installed 
with standard circulation and flushing in accordance 
with the API Standard 610 norms.

SPIRAL VANE PUMPS
RACN SERIES
Horizontal single stage centrifugal pumps with 
overhung impeller and axial suction, constructed 
using the "Back pull-out system" and available 
with five different sizes of support.
Main technical features

• Flow rate up to 1400 m3/h
• Discharge head up to 80 m
• Working pressure up to 10 bar
• Working temperature from -30 to +140°C
• Size from 80 to 300 mm
• Flanges drilling UNI PN10

Advantages

• The semi-open impeller, which is positioned 
  further back, with wide inter-vane passages 
  makes it possible to convey, without any 
  danger of blockages, dense and/or highly
  viscous liquids with solid particles in suspension, 
  solutions with high percentages or dry matter, 
  and chemically inert or aggressive liquids.
• Very high suction capacity
• Extremely low NPSH values
• Particularly advantageous from the economic 
  point of view for plants with low NPSH values

Fields of application

• The paper industry, conveying of paper pulp 
  up to concentrations of 15% dry residue
• The chemical wood pulp industry, conveying of 
  cellulose and wood pulp
• The farm-food industry
• The sugar industry
• The chemical industry

Materials
The RACN pumps can be made both of cast iron or 
AISI 304 or AISI 314 L stainless steel.
Shaft seal
The RACN pumps can be equipped with various 
types of seal:

• Soft packing with liquid barrage
• Mechanical seals (simple, balanced, double,
  cartridge, with quench ...,) with standard 
  circulation and flushing in accordance with
  the API Standard 610 norms.
• Hydrodynamic seal: this is an innovative seal
  comprising a secondary impeller installed
  behind the main impeller which makes it
  possible to operate with particularly abrasive
  liquids or with solutions that easily deposit 
  the solute.

RVS SERIES
Main technical features

• Absolute inlet pressures up to 33 mbar.
• Flow rate up to 4200 m3/h.
• Motor power from 1.5 to 55 KW.
• Maximum gas inlet temperature: 100°C.
• Maximum service liquid temperature: 70°C.
• Noise level at 80 mbar: 72-79 dB (A).

Performance and advantages

• Possibility of sucking gases and vapours, also
  in the presence of entrained liquids.
• Isothermal compression of gases.
• No lubricant in contact with pumped gases.
• New hollow shaft coupling to make maintenance
  even easier and quicker.
• No parts subject to wear.
• Significantly reduced vibrations.
• Reduced noise because of new patented
  integrated silencing device.

Fields of application
Suction of gases and vapours in various industrial sectors:

• Chemical, pharmaceutical, food, paper, hospital, 
  sugar, textiles and energy.
• In the processes of concentration, drying,
  impregnation, plastic extrusion, degassing, 
  extraction of non-condensable gas from condensers,
  autoclave sterilization.

PACKAGES
LRVS PUMP PACKAGES
Packages comprising pump, motor and separator.
The transmission uses belts and pulleys and is 
based on a patented motor swinging suspension system.
Advantages:

• Because of the belts coupling it is possible to 
  select the vacuum pump that operates at the
  best speed, so as to minimise both the overall 
  dimensions and the operating costs.
• Reduced load on the pump and motor bearings.
• Possibility to maintain the tension of the belts 
  over time.
• Easy to replace motor with types of various shape
  and with various characteristics

CRVS PUMP PACKAGES
The transmission is obtained through an elastic coupling.
The pump rotates at the synchronous speed of the 
three-phase motor.
Advantages:

• Easy to integrate in complex plants

KRVS PUMP UNITS
These units consist of RVS pumps with 
separator tank for the recirculation of the
service liquid and connecting piping.
Two versions are available:

• KRSV/P with partial recirculation of the liquid .
• KRSV/T with total ricirculation of the liquid :
  this version is equipped with heat exchanger.

POSITIVE DISPLACEMENT ROTARY BLOWERS
RBS - RBS/AV - RBS/DV Series
RBS SERIES
RBS is the innovative positive displacement rotary blower with 
patented special three lobe profile rotors with LOW-pulse system to 
reduce the pressure pulsations
Main technical features

• Flow rate up to 25,000 m3/h
• Motor power up to 500 KW
• Absolute inlet pressure starting from 500 mbar
• Maximum compression ratio, standard model: 2
• Maximum outlet temperature 150°C

Performance and advantages

• Integrated pulsations dampening system: residual 
  pulsations less than 2%.
• Greatly reduced noise and fewer problems also for the 
  down-line pipe systems.
• The structure of the machine was been designed for 
  additional low cost silencing.
• Reinforced roller bearings are used, selected for a 
  theoretical B10 life of 100,000 hours under the heaviest 
  operating conditions.
• Oversized shafts to allow higher working pressures and 
  higher rotation speeds.
• Absence of parts that slide or are subject to wear.
• Maximum cleanliness: labyrinth seals and special seals to 
  ensure that the gas is conveyed free of oil and oil vapours.
• Lubrication of the bearings and synchronizing gears by oil
  splashed with disks fitted on drive shaft.
• Very simple maintenance. Simplicity of machine 
  remounting because of cylindrical reference pins.

Fields of application

• Waste Water Treatment Plants.
• Bulk material conveying.
• Gas circulation.
• Creation of medium vacuum.

Optional

• Mechanical seals on the shaft for work in pressurized 
  circuits.
• Lip seals for the total insulation of the conveying chambers 
  (as required in the food and pharmaceutical industries).
• Surfaces covered with anti-corrosion chemicals.

RBS/AV SERIES HIGH VACUUM BLOWERS
Positive displacement rotary blowers to increase the flow rate of the 
primary vacuum pumps when they are operating at their minimum 
inlet pressure.
They can be used in series with a primary vacuum system to reach 
high levels of vacuum.
Main technical features

• Absolute inlet pressure from 0.01 to 20 mbar
• Inlet flow rate from 300 to 8000 m3/h
• Absolute outlet pressure up to 50 mbar

Performance and advantages

• Possibility of sucking gases and vapours.
• No sliding parts, no wear.
• Minimum maintenance.
• Maximum reliability.
• Maximum noiselessness.

Fields of application
These blowers are mainly used in processes that require medium or 
high vacuums, such as:

• Food industry: freeze-drying, drying, vacuum packaging.
• Chemical industry: extraction of gases or vapours, ovens 
  under vacuum.
• Electronics industry: production of integrated circuits, 
  circulation of gases in lasers.

THE VACUUM BLOWERS: RB-DV SERIES
Positive displacement rotary blowers installed on mobile units. 
On these we have patented the innovative atmospheric air 
pre-injection device.
The result is the reduction both in the heating of the gas and in the 
power absorbed by the blower, reaching a maximum vacuum of 
90% without the need for any additional cooling unit.
Main technical features

• Maximum vacuum 90%.
• Inlet flow rate from 840 to 10.500 m3/h.
• Suitable for continuous use with maximum level of 
  vacuum.
• 6 sizes from 45 to 145.

Performance and advantages

• Limited noise.
• Possibility of sucking gases and vapours.
• No sliding parts, no wear.
• Discharge temperature less than 100°C.
• Minimum maintenance.
• Maximum reliability.

Fields of application
The blowers of the RDS-DV series make it possible to create large 
flow rate suction plants in a convenient way and without the need for 
auxiliary services such as heat-exchangers or coolers. Their use is 
therefore ideal in the following situations:
Bulk material conveying plants under vacuum:

• The suction of ash at thermo-electrical power stations
• The conveying and distribution of granulated material in the 
  chemical and pharmaceutical industries

Centralized vacuum plants:

• Packaging
• Handling with suction cups
• Paper processing machines

Mobile units for the disposal of liquid and solid waste

• Urban sanitation: sludges, sewage, waste water (Builders, 
  Overhaul workshops, Municipal buildings, Private operators)

Mobile units for dust suction:

• Suction of dust or large solids for cleaning in the metal or 
  building industries (Builders, Overhaul workshops, Industry,
  Private operators)

Trolley units for industrial suction:

• Cleaning in industrial environments, where they replace 
  centrifugal fans and oil lubricated vane depressors (Builders, 
  Overhaul workshops, Industry, Private operators)

Accessories

• Injection system with check valve for operating under 
  pressure
• Interference injection silencer
• Discharge silencers set

ROBOX SERIES
ROBOX is an integrated compression package for conveying low 
pressure gases, equipped with the RBS positive displacement rotary 
lobes blower, driven by an electric motor via a V-belt transmission,
and complete with all accessories.
Main technical features

• Flow rate up to 10,000 m3/h.
• Motor power up to 250 KW.
• Absolute inlet pressure starting from 500 mbar.
• Maximum compression ratio, standard model: 2
• Maximum temperature 150°C for an ambient temperatureup 
  to 50°C
• Noise level between 70 and 85 dB (A) (1 m ISO 3741)
• Completely ecological reactive silencers.
• Can be installed in the open.

Advantages

• Greater sound proofing
• Greater safety and reliability
• Greater practicality
• Ease of maintenance and compactness
• Energy saving and ecological

Fields of application

• Purification.
• Bulk compressed material conveying.
• Bulk material conveying under vacuum up to 500 mbar 
  absolute with standard machines, up to 250 mbar absolute 
  with the DV series.
• Suction plants.
• Gas circulation.

Optional

• Valves for automatic start-up and servo-assisted with pilot 
  valve for flow rate overpressure blower safety.
• Closed circuit connection.
• Control panel.

GRBS SERIES
Integrated compression package with V-belt transmission.
Main technical features

• Flow rate up to 25,000 m3/h.
• Motor power up to 250 KW.
• Absolute inlet pressure starting from 500 mbar.
• Maximum compression ratio: 2.
• Maximum outlet temperature 150°C.

Advantages
Makes it possible to optimise the compressor flow rate and the use 
of special medium tension electrical motors, constructed to be either 
air-tight or explosion-proof.
Fields of application

• Closed circuit plants for the chemical and plastics industries.
• The detergent industry.
• Supply of air for combustion and cooling for ovens.

CRBS/GRBS SERIES
Integrated compression package with direct transmission.
Main technical features

• Flow rate up to 25,000 m3/h.
• Motor power up to 500 KW.
• Absolute inlet pressure starting from 500 mbar.
• Maximum compression ratio: 2.
• Maximum outlet temperature 150°C.

Advantages
Makes it possible to use special medium tension motors, constructed 
to be either air-tight or explosion-proof.
Fields of application

• Closed circuit plants for the chemical and plastics industries.
• The detergent industry.
• Supply of air for combustion and cooling for ovens.

TRB/DV SERIES
Integrated compression packages that can be assembled on mobile 
units based on the RBS/DV positive displacement rotary blowers 
with air injection. In this package technological research has made it 
possible to obtain a significant noise reduction in a plant of small 
dimensions. Here the patented atmospheric air injection device 
makes it possible to reduce both the heating of the gas and the 
power absorbed by the blower, reaching a maximum vacuum of 
90% without the need for any additional cooling plant.
Reliability and low levels of maintenance can be added to the 
convenience of the plant.
Main technical features

• Five sizes from 65 to 145.
• Inlet flow rate from 1000 to 8000 m3/h.
• Maximum vacuum 90%.

Advantages

• Compactness of package.
• Transportability.
• The package does not heat up.
• Limited noise.
• Possibility of sucking gases and vapours at high temperature.
• No sliding parts, no wear.
• Maximum reliability.
• Minimum maintenance.
• Does not require auxiliary circuits.

Fields of application
The TRB-DV Series Blowers make it possible to create suction 
plants with great flow rates, in a convenient way and without the 
need for auxiliary services such as heat-exchangers or coolers.
Their use is therefore ideal in the following situations:

• Mobile units for the disposal of liquid and solid waste:
  Urban sanitation: sludges, sewage, waste water (Builders, 
  Overhaul workshops, Municipal buildings, Private operators)
• Mobile units for dust suction:
  Suction of dust or large solids for cleaning in the metal or 
  building industries (Builders, Overhaul workshops, Industry, 
  Private operators)
• Trolley units for industrial suction:
  Cleaning in industrial environments, where they replace 
  centrifugal fans and oil lubricated vane depressors (Builders, 
  Overhaul workshops, Industry, Private operators)