Valve series VOFD
Subject to change – 2018/11
2
è Internet: www.festo.com/catalogue/...
Solenoid valves VOFD
Key features
General
The valves from the series VOFD are
special 3/2-way valves for process
automation, for use in chemical and
petrochemical plants. Here they are
frequently used as pilot valves for
butterfly valves and actuators. Their
sturdy design and high resistance to
corrosion make these valves
suitable for outdoor use under
harsh ambient conditions.
The NAMUR flange pattern makes
the solenoid valves especially
suitable for quarter-turn actuators.
The integrated spring chamber re-
breather function protects quarter-
turn actuators with spring return
(single-acting cylinders and actuat
ors) against contaminated ambient
air and weather influences such as
rain.
With German Technical Control
Board (TÜV) approval up to SIL 3.
Function, design Safety Robust Economical
3/2-way directly actuated poppet
valves
Can be used in emergency
shutdown (ESD) applications
Suitable for use in safety-related
systems up to and including SIL 3
to IEC 61508
The surface of the valve housing is
Ematal coated. This treatment
involves converting the aluminium
surface into a very hard aluminium
oxide layer with titanium oxide
intercalations, which makes the
valves extremely resistant to wear
and abrasion and gives them
first-class sliding qualities. This
provides optimum protection
against atmospheric and chemical
influences.
You can find information on the
media resistance of the product at
è www.festo.com.
One valve, two connection options
Port patterns to NAMUR for direct
installation on the actuator as well
as G and NPT threaded connections
Manual override can be ordered
optionally
Manual override can be retrofitted
and removed again – no additional
valve version required
Ordering data – Product options
Configurable product
This product and all its product
options can be ordered using the
configurator.
The configurator can be found under
Products on the DVD or at
è www.festo.com/catalogue/…
Part No. Type
2956784 VOFD-L35T
3212962 VOFD-L50T
2964753 VOFD-L100T