Burkert 3360 Guide Rapide page 11

Type 3360, 3361
Technical data
WARNING!
Reduced sealing function if operating pressure too high.
Because the valve seat is closed against the medium flow, an
excessive operating pressure may cause the valve seat to not
close tightly.
▶ The operating pressure must not exceed the maximum value
specified on the type label.
Maximum permitted operating pressure: see type label
Media: n eutral gases and steam.
Liquid media: Water, alcohol, oil, fuel, hydraulic
fluid, salt solution, caustic soda, organic
solvent.
Degree
of protection: ( verified by Bürkert/not evaluated by UL)
IP65 in accordance with IEC 529, EN 60529,
(IP67 on demand).
NEMA 250 4x (not guaranteed if installation
position: actuator facing downwards).
Flow direction: i ndicated on the type label with an arrow and
the digits 1 and 2. The 1 and 2 are also on then
valve body for identification.
The flow direction is below the seat with flow
direction from connection 2 to connection 1.
Altitude: u p to 2,000 m above sea level
6.5.1 Permitted temperature ranges
Minimum temperatures
Environment: -25 °C
Medium: -10 °C (-40 °C on request)
Maximum temperatures
Environment: d epends on the medium temperature, see sub-
sequent temperature diagram.
Medium: d epends on the ambient temperature, see sub-
sequent temperature diagram
For devices with PTFE valve seat seal
max. +130 °C.
F or devices with steel or PEEK valve seat seal
max. +230 °C.
Temperature diagram
The maximum permitted temperature for the environment and
medium are dependent on one another. The permitted maximum
temperatures must be determined using the temperature diagram.
The values are calculated under the following maximum oper-
ating conditions: DN DN32 at 100% duty cycle with 16 bar oper-
ating pressure.
Individual reviews may be performed under different operating
conditions. For this, please contact your Bürkert branch office.
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