Chemical Technology April 2015

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22 Chemical Technology • April 2015
The Rietschle VC vacuum pump range
Oil-lubricated rotary vane vacuum pumps designed and built by
Rietschle are used in a wide variety of industrial applications.
Rietschle offers the largest range of oil-flooded vacuum pumps for
industrial coarse and fine vacuum operation.
The VC range is based on three different designs.
• Compact pumps with overhung bearing design.
• Medium ranges with rotors supported on both sides, and flex-
ible coupling.
• Large pumps with rotors supported on both sides, plus flexible
coupling and double walled cylinder.
VC rotary vane vacuum pumps are air-cooled in the standard ver-
sion. An oil-water cooler is available for high ambient temperatures
or for heat recovery. The exhaust air is cleaned by a built-in mist
filter with a very high separation efficiency ensuring oil free opera-
tion in all working conditions. During service, the oil mist filter can
be changed quickly via the maintenance cover, which is sealed
by an O-ring, or for sizes 50-150 directly from the outside with a
bayonet fitting.
All pumps from 50m³/h up feature a gas ballast valve as stan-
dard. This optimises the water vapour and when the pump reaches
its operating temperature, any water vapour pumped passes
through as a gas, without condensing.
Standard features of the VC range are as follows:
• Vanes made from a special alloy for long service life.
• Oil separator with permanent oil re-circulation.
• Gas ballast valve from range 50m³/h upwards.
• Oil mist filter with bayonet fixing (sizes 50-150).
• Large maintenance cover from range 200 up.
• Stainless steel mesh filter or paper filter.
• Non-return valve.
Typical VC applications include the following:-
• Environmental engineering
Aeration
Drying
Dust extraction
• Food processing
Bottling and filling machines
Cutting machines
• Industrial applications
Drying systems
Dust extraction systems
Industrial furnaces
Vacuum hold down
• Packaging industry
Centralised vacuum systems
Packaging machines
Vacuum moulding
• Pneumatic conveying
• Wood working industry
Dust extraction systems
Vacuum hold down
For more information about the Rietschle VC vacuum pump range,
contact Mark Burn, managing director, Air & Vacuum Technologies,
CTEC (8 8 3240, email
, or go to z
Elmo Rietschle rotary vane vacuum pump
FOCUS ON PUMPS & VALVES
Integrated Pump Technology of South Africa
has supplied 20 Bravo 900 submersible
slurry pumps and 20 M20 control panels to
Kamoto Copper Company (a subsidiary of
Katanga Mining) of the Democratic Republic
of the Congo (DRC). These heavy duty electri-
cal submersible slurry pumps are the largest
of their kind in the Grindex product family,
says Klint Bawden, General Manager: Sales
& Marketing, Integrated Pump Technology.
Chris Heunes, Export Sales Manager,
Integrated Pump Technology, explains that
the company’s products are being deployed
at three different areas of Katanga Mining’s
operations in the DRC. These are the Luilu
Metallurgical Plant, the Kamoto Concentrator
(KTC) and KOV Open Pit Mine (KOV). Heunes
says that EC Mining has been formally ap-
pointed as the distributor for Integrated Pump
Technology for the DRC and is in the process
of establishing a fully-fledged service and
repair workshop at Kamoto Copper Company
to cater for its aftermarket needs.
“Pumping slurry is one of the most de-
manding applications for any pump, due to
such issues as sediment build-up leading to
costly downtime and repair costs,” Bawden
explains. “The Bravo range from Grindex is
robust and hard working enough to result in
reduced operating and maintenance costs.”
These pumps, with a maximum submersible
depth of 20 m, do not require any support
superstructure, which makes for quick and
easy installation and less space needed for
their operation.
For more information contact Klint Bawden on
tel: +27 076 840 6527, email
or go to pump-technology.
com z
Twenty Bravo 900 submersible slurry pumps for Kamoto Copper Co in the DRC