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VSS series0 pages
Datasheett
Butterfly valve for exhaust gas applicationst
Si-207 EN
Edition: 2014-04
Type VSSt
Wafer design
t
Nominal pressurett
PN 10 - 25
t
Nominal sizett
DN 80 - 800
t
Materialtt
Stainless steel
triple
•t Advanceddesign
eccentric
•t Designed for control
and shut-off
applications
•t Standard up to
applications
600° C (1112 °F).
For higher
temperatures consult
SOMAS
•t Tightness class inEN
accordance with
60534-4 Class V as
standard
•t Wafer design
(Mounted between
flanges) alt. lugged
design
SOMAS butterfly valves, type VSS is used as a control, on/off and shut-off valve. The VSS
valve is designed to handle a wide range of of gases within a broad temperature range.
The valves have an advanced triple eccentric design including a unique shape of the disc
allows the use of a solid stainless steel seat. The solid seat remains un-affected by high
flow velocities and temperatures. A good valve function is achieved also in difficult
applications.
The seat is easily replaceable.
The VSS valve can be mounted between flanges and is also supplied in lugged design.
The SOMAS valves are delivered ready for installation and operation. The valve
assemblies are delivered factory tested as complete units with actuators, positioners and
accessories.
