Si-2100 pages

Datasheett
Butterfly valvet
Type VSS LT (Low Temperature)t
t
Nominal pressurett
t
Nominal sizett
t
Materialtt

triple
•t Advanceddesign
eccentric
•t Designed forat
applica­tions
temperatures down
to -196° C (-320° F)

•t Tightness class in
accordance with
EN 60534-4 Class V
as standard
made
•t Solid seatsteel of
stainless
bonnet and
•t Extendedbox located
stuffing
at the top to prevent
freezing and allow
easy maintenance

Option

•t Seat made of
reinforced PTFE
(which gives a
tightness class in
accordance with
EN 60534-4VI)

Si-210 EN
Edition: 2012-07

Wafer design
PN 10 - 25
DN 80 - 500
Stainless steel

The SOMAS butterfly valve, type VSS LT, is a control-, on/off- and manually operated
valve. The valve is designed to handle a wide range of liquids, gases and steam at
temperatures down to -196° C (-320° F).
The VSS LT-valve can be mounted between flanges and also supplied in lugged design.
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 unaffected by high
flow velocities and a good valve function is achieved even on difficult applications.
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.