GUTH（古斯）VSR系列气动调节阀技术要点如下:

VSR Modulating valves
Seat valves Modulating valves
Custom solution
Modular concept offering diverse
combinations for optimal process
and cost results
Variety of modulation characteristics
Replaceable fittings （cone/seat） for
the integration/modification of different
kvs values with linear or equal
percentage modulation characteristics, cone
design with metallic or elastomeric sealing
Complete construction in stainless steel
Solid valve housings, membrane actuator
in electropolished stainless steel, robust
lantern construction, valve positioner
with stainless steel cover
Hygienic design
Minimal dead space in spherical housings
Easy assembly and maintenance
Special solutions
- small housings from DN 10-25 （?\"-1\"） for
control of smallest quantities from kvs 0.1
- high pressure resistance of up to
40 bar for valves up to DN 40
Valve positioners
DigiPos digital I/P positioner from Guth as standard,
lantern with NAMUR interface （DIN/IEC 534-6） for
the integration of other types of controllers
signal range 4-20 mA
calibration of linear, equal percentage or special
characteristic curve via interface （RS 232） and
visualization software
auto-calibration for simple start-up
contact-free positioning, therefore easy to install,
non-wearing and insensitive to vibration
no internal air consumption in adjusted position
partial or split range operation as well as signal
inversion possible
Further
modulating
valve types
steam modulating valves
stroke modulating valves
with piston actuator
butterfly control valves
arc modulating valves with
unrestricted cross-section
for the regulation of flow,
mixing or distribution of
liquids and gaseous media
Overflow valves
safety valve to compensate
pressure peaks in
pipes
response pressure via
standard spring,
adjustable from 0.5-6 bar
special springs for additional
response pressures
available upon request
pneumatic drive to lift
up seat for cleaning
bypass line
Bottom drain valves
for tanks and containers
dish-shaped connection flange with sloping
outlet as extension of container bottom to enable
complete drainage
clamped valve housing for easy assembly and
maintenance, allowing free choice of direction
of outlet nozzle
installation also possible when floor space is
restricted thanks to choice of actuating systems
（crank or handwheel, angular gear, pneumatic
cylinder）
optional: with modular control head