Very good response sensitivity and optimized turn-down ratio
Bürkert presents third generation of solenoid control valves
With the new Types 2871, 2873 and 2875 the fluid technology
specialist Bürkert will present the third generation of its solenoid controlvalves in April 2012. Thanks to the new frictionless plunger bearing, the new
solenoid control valves feature even better response and very good
repeatability. In addition, the turn-down ratio (span) of the valves has been
increased from 100:1 to 200:1 in comparison with the previous models.
Bürkert solenoid control valves are used around the world in
numerous different applications in which fluids are mixed or metered. The
applications range from medical, analytical and fuel cell technology to fuel
metering and even systems for surface coating of oxyacetylene cutting systems.
Since the presentation of the first generation of solenoid control valves in
the early 1990s Bürkert has continuously improved the performance of its
valves. The plunger bearing is of central importance in this development. The
introduction of a new bearing principle now makes it possible to eliminate a
guide bush, therefore providing a completely frictionless bearing for the
plunger in the new Bürkert solenoid control valves.
Frictionless bearing increases precision
The elimination of solid-to-solid friction on the guide bush
offers many benefits to users with high requirements. Valves with frictionless
plunger bearings feature better response, meaning the position of the plunger
already changes with minimal differences in the input signal. The repeatability
in case of repeated setting of the same position is likewise improved by
elimination of friction. Further, the span of the new solenoid control valves
is increased to 200:1 instead of 100:1 as so far.
With the frictionless bearing Bürkert was also able to
improve the behavior in use with low pressures (< 100 mbar). Stick-slip
effects, which could be observed in the valves of the previous generations in
some applications, have now been completely eliminated. No friction at the
guiding elements of the solenoid control valves also means no temperature increases
at the bearings during operation of the valve. The new generation of Bürkertsolenoid control valves can therefore also be used with very dry gases.
Second series for customized projects
In addition to the standard Types 2871, 2873 and 2875, Bürkert
offers a second series of solenoid control valves with simplified technology as
a more economical basic version. The Types 2861, 2863 and 2865 are aimed at
customers who use large quantities of solenoid control valves in standard
applications, with less stringent requirements for performance of the valves in
favor of reducing costs. Depending on the requirement and the application,
Bürkert therefore offers the optimal solenoid control valve for applications
that require uncompromising performance as well as economical valve solutions
for large-scale applications.
Facts and data
The new solenoid control valves of the standard series from Bürkert
Type 2871:
- Diameter 0.8 - 2 mm
- 20 mm coil width
- Internal thread connection 1/8"
- Power consumption 2W or 5W
Type 2873:
- Diameter 0.8 - 4 mm
- 32 mm coil width
- Hose connection 1/8" or 1/4"
- Power consumption 9W
Type 2875:
- Diameter 2 - 8 mm
- 49 mm coil width
- Hose connection 3/8" or 1/2"
- Power consumption 16 W
If you would like more information about these Burkert Solenoid Control Valves or other Burkert Products please contact Forberg Scientific customer service.
Toll Free: 855-288-5330
Email: mechanicalsales@forberg.com
Toll Free: 855-288-5330
Email: mechanicalsales@forberg.com
