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N
86 AN.12DC-B
KNF
double diaphragm pumps offer a high level of
performance and greatly enhance safety, especially
when working with dangerous, rare and valuable
gases. A second diaphragm is located underneath
the working diaphragm. The safety diaphragm
has a significantly longer service life than
the working diaphragm, thus ensuring that no
gas can escape into the environment even if
the working diaphragm ruptures.
Concept
Double
diaphragm pumps from KNF are based on a simple
principle: an elastic working membrane and safety
membrane are held securely at their edges and
moved up and down at their center by an eccentric.
As a result, the working membrane moves the
medium through automatic
valves. The lower lying safety diaphragm provides
the working diaphragm with additional security.
The
safety membrane has a signiicantly longer service
life than the working diaphragm. The redundant
arrangement of the diaphragms ensures that no
gas can escape into the environment even if
the working diaphragm ruptures.
The
KNF modular system permits selection of materials
with various levels of gas resistance for parts
in contact with gas. Several different motors
are available to drive the pump. Please contact
us for details.
Feature
- Pure
transfer (No contamination of the media due
to oil-free operation)
- Maintenance-free
- Compact
size
- High
performance
- High
level of gas tightness: 6 x 10-4 mbar x l/s
- Long
product life
- Very
quiet and little vibration
- With
brushless DC motor (Cool running motor even
when in constant use, wide range speed controlled
motor)
- Ready
for assembly
- Can
operate in any installed position
- High
security against escape of hazardous or valuable
gases
Areas
of use
The
double diaphragm pumps offer a high level of
performance despite their small size, as well
as an excellent price performance ratio. They
are required especially in the ields of analysis,
process, chemical, fuel cell, production technology
and research.
The
pumps are used for transferring and sucking
gases, taking samples (even liquids in a vacuum),
evac ua ting vessels and compressing gases in
process systems and vessels.
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