Electronic Regulating Systems Compact Servo Valves Compact servo valve with position-con- Servo valve technology by Kolvenbach Cartridge servo valve trolled rotary vane
These servo valves permit designing highly
precise and rapidly responding regulating
This compact unit comprises the basic actua-
systems. The heart of this series of electro-
tor with electronic position control. It is easily
pneumatic regulator modules is a very fast
integrated into servo-pneumatic control circu-
rotary vane actuator. The rotary vane is powe-
red by a position controlled direct current
motor. Since there is no transmission system,
the adjusting times are extremely short, in the
The basic actuator with motor control electro-
The rotary vane actuator is also available as a
nics is also sold individually. But normally a
cartridge valve. This allows space-saving inte-
classical analog proportional plus integral plus
gration of the valve into customized pneumatic
derivative controller (PID) is added. The indivi-
dual ajustability of the PID ratio and the short
We are supplying precisely dimensioned dra-
response time of these regulators allow appli-
wings for design integration. To allow normal
cations that may have seemed impossible to
installation, we can supply a valve housing for
The valve electronics can be installed either inthe connector, as SMD module, or on a slim
Typical applications for Kolvenbach servo Compact servo valve with position-con-
Euro-size circuit board. A PID controller and a
valve systems trolled rotary vane and PID controller
position controller on Euro-size circuit boards
Compact servo valves KPS/KWS
External transducers can be connected direct-
• Regulated reference pressure sources for
Since the valve functions as a steady 3/3
a combination of control pressure regulating
calibration of pressure transducers.
ly to this compact regulator. This allows setup
Order No. 3/3 cartridge servo valve with 4 mm rated size,
directional valve, all variations of fast controlled
incl 2 m cable, with valve electronics, type EWS
Automatic processing of pressure points for
or regulated pressure inlet and outlet are avai-
Each control loop consists of a servo valve with
lable. Please note, however, that a rotary vane
PID controller, dome-controlled gas regulator
Pneumatic setup
and a pressure transducer for acquisition of
• Position-controlled cylinder drives with a
The valves can be arranged freely in any pneu-
therefore cannot be free of leakage when it is
repeatability of 1/10 mm for handling and
Order No. 3/3 cartridge servo valve with 6 mm rated size,
The most frequently used are the variations a
incl 2 m cable, with valve electronics, type EWS
and b. In these only the opening direction
In addition to the position-controlled basic
• Precision pressure regulating with accuracy
actuators we can supply specially adapted
electronic assemblies in 19" racks or customi-
zed compact regulators. We'll be pleased to
Connecting variations/table 1
machinery, or tensile strength and pressure
support you in selecting and specifying your
pneumat. connections with G 1/4" threads
• Generation of exact stroke/time profiles
Your advantages:
with pneumatic cylinders in the food stuffs
the actual value. In this setup the servo valve
fills the control-dome with air and thereby
Highly precise tensioning control on calan-
regulates pressure with high precision. Compact “positioning servo valve”
ders of paper, textile or foil winders.
This assembly incorporates all features requi-
Compact servo valves KPS/KWS
red for controlling the position of pneumatic
Application example of a servo valve with
This series combines mechanical servo valve
cylinders. A potentiometric stroke transducer
We are pleased to supply application sheets
downstream booster valves
and electronic controller in one unit ready to
concerning the tasks mentioned. These descri-
be typical solutions in detail. We also offer spe-
In the production of light bulbs, fuel gas and
Order No. External controller 1514
Analog PID controller on Euro-format board,
oxygen must be metered and mixed precisely
Kolvenbach servo valves are available with
to achieve even flame temperature for melting
nominal sizes 4 mm and 6 mm. The field of
of glass. The process parameters must be well
Pressure connections: G 1/4" inside thread
application reaches from vacuum pressure to
controlled, to ensure high bulb quality.
carrying rail, 12 bit resolution with 3digit
digital display and diagnosis function.
10 bar system pressure. The dynamicity at
For a large-scale bulb manufacturer we have
±100 % is 70 Hz. This corresponds to a swit-
designed control loops for fuel gas and oxygen.
ching time of 5 milliseconds for 0.100%.
The two gas pressures are controlled with high
precision although the pressure is low and the
rates are high, even the Kolvenbach valve rea-
ches its physical limits. Therefore we opted for
Para acabar com o privilégio do produto O pensamento de Gilbert Simondon é muito pouco conhecido. No Brasil podemos dizer que é completamente desconhecido. Apesar da notoriedade que atualmente ele vem conhecendo, a partir das questões surgidas com a "nova ciência" relevando o caos e a complexidade -- figuras tradicionais do pensamento simondoniano --, a ponto de merecer um Col
Idoneità oppure esclusione temporanea o permanente. Questo documento è puramente informativo, sarà cura del dottore prima della donazione di convalidare l’idoneità al prelievo. Soggiorni all’Estero. • Soggiorno nel Regno Unito tra il 1980 e il 1996 per più di sei mesi cumulativi – Esclusione • Trasfusione di sangue nel Regno Unito dopo il 1980 - Esclusione Permanente.
Electronic Regulating Systems