Siemens
AG
Building
Technologies
SKPx5
Series
Technical
Instructions
Document
No.
7643
SKPx5.xxxUx
December
10,
2018
SKPx5.xxxUx
Gas
Valve
Actuator
with
Safety
Shutoff
Function
SKP15.xxxUx
SKP25.xxxUx
SKP55.xxxUx
SKP75.xxxUx
ISO
9001
and
14000
REGISTERED
FIRM
Only
when
assembled
to
series
VGxxx.xxxU
gas
valves
General
description
SKPx5.xxxUx
electro
Ͳ
hydraulic
actuators
are
used
in
combination
with
VGxxx.xxxU
gas
valve
bodies
to
provide
slow
opening,
fast
closing
safety
shut
Ͳ
off
and,
depending
on
model
gas
pressure
regulation
and
air/gas
ratio
control
for
industrial
and
commercial
burner
applications.
Since
safety
shut
Ͳ
off,
constant
pressure
regulation
or
air/gas
ratio
control
can
be
performed
by
a
single
valve,
fewer
gas
train
components
and
fittings
are
required
to
assemble
a
gas
train.
This
significantly
reduces
both
the
size
and
weight
of
the
gas
train.
The
total
pressure
drop
across
the
gas
train
arrangement
is
reduced,
allowing
for
the
use
of
smaller
diameter
gas
trains
in
most
applications.
The
compact
SKPx5.xxxUx
actuator
opens
slowly
when
powered
and
closes
immediately
upon
power
interruption.
The
modular
design
allows
the
SKPx5.xxxUx
to
be
used
in
combination
with
all
VGxxx.xxxU
gas
valves
bodies
from
½"
to
6"
sizes.
The
actuator
can
easily
be
mounted
on
the
square
flange
of
any
VGxxx.xxxU
valve
with
four
pre
Ͳ
mounted
screws.
No
gaskets
or
seals
are
required
when
mounting
the
actuator.
A
visible
position
indicator
on
the
front
of
the
actuator
displays
the
entire
stroke
of
the
valve.
A
light
indicates
when
the
actuator
is
powered.
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