bürkert 3323 Kurzanleitung Seite 12

WARNING!
Reduced sealing function if operating pressure too high.
Since the diaphragm valve is closed against the medium flow,
too high an operating pressure can cause the valve not to
close tightly.
▶ The operating pressure must not exceed the maximum value
specified on the type label.
Danger from leakage of hot medium
The diaphragm does not provide permanent protection against
hot medium.
▶ Do not use the diaphragm valves for steam shut-off.
Maximum per-
mitted operating see type label
pressure:
Flow medium: neutral, ultra-pure, sterile, contaminated,
aggressive or abrasive media of high to low
viscosity.
Degree of ( checked by Bürkert/not assessed by UL)
protection: IP65 and 67 according to IEC 529, EN
60529, NEMA 250 4x (not guaranteed if
installation position: actuator at bottom)
(only for AG2, for AG3 on request)
Altitude: up to 2000 m above sea level
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6.5.1 Permitted temperature ranges
The permitted temperature ranges for the medium and
surrounding environment are dependent on various
factors:
• Medium temperature: Dependent on valve body
material and diaphragm material.
• Ambient temperature: Dependent on medium
temperature.
All factors must be taken into consideration when calcu-
lating permitted temperatures.
Minimum temperatures:
Environment: – 10 °C
Medium: N ote the dependency on valve body material and
Maximum temperatures:
Heed dependencies on ambient temperature and medium tem-
perature. See "Fig.8" and "Fig.9".
6.5.2 Permitted medium temperature
NOTE!
Depending on the medium temperature the behaviour of the
medium temperature in relation to the diaphragm material may
change.
▶ The specified medium temperatures only apply to media that
do not attack the diaphragm materials or cause it to swell
up.
English
Type 3323, 3324, 3325
Technical data
diaphragm material. See Chapter "6.5.2".