Translation of the original operating instructions
Type 327
© 1994 - 2022 SED Flow Control
45
BA220002 Version:
a
Vo
rl
ag
e
: d
o
k360 (
c)
Permissible temperature for valve bodies
Material
Media temperature
Min.
Max.
St. Steel
-10 °C
160 °C
Cast iron
-10 °C
150 °C
PVC-U
0 °C
60 °C
PVC-C / PP
0 °C
100 °C
PVDF
-20 °C
120 °C
4.2.2. Operating pressure
Warning
Danger of bursting at excess pressure! Do not exceed the permitted operating pressure!
At increased temperatures, the maximum permissible operating pressure may be reduced!
Maximal permissible pressure, unidirectional, static pressure
Diaphragm
MA8
DN 4 - 15
MA10
DN 8 - 20
MA25
DN15 - 25
EPDM
10 bar
10 bar
10 bar
FPM
10 bar
10 bar
10 bar
PTFE-TM / EPDM
10 bar
10 bar
8 bar
4.2.3. Control pressure
Co
d
e
ac
tu
ato
r
typ
e
A
ctu
ato
r
su
rface
in
c
m
²
N
o
m
in
al
str
o
ke
in
mm
B
e
n
ch
ran
ge
in
b
ar
(si
gn
a
l
p
re
ssur
e
ran
ge
at
rate
d
tr
av
e
l)
21
1)
120
7,5
0,8…1,6
31
0,8…1,6
37
2)
120
15
1,4…2,3
3)
1)
Standard version MA8/MA10
2)
Standard version MA25
4.3. Safety related data
The diaphragm valve 327 is in accordance to
•
3-A Standards Section 54-02
•
TA-Luft / VDI 2440 / VDI 3479
•
Pressure Equipment Directive 2014/68 / EU (declaration of conformity, see attachment)
An ATEX version according to Directive 2014/34 / EU is available for use in potentially explosive areas.
