LV/DT0 pages

Leakage valve LV, leakage bottom-seat valve DT

Hygienic leakage valve LV
Hygienic leakage bottom-seat valve DT
Functionality
Hygienic leakage valves are mix-proof flow components for processing plants. The leakage chamber
enables the safe separation of both media via two
seals at all times. Any leakage that occurs at the
seals is drained out through the leakage opening in
a depressurized manner.
Use
- tValves are designed for use in the food, dairy and
beverage, pharmaceutical, chemical, and cosmetics industries
- tUsed as a safe, reliable, and robust flow control
device in hygienic (low-germ and highly clean)
production and bottling plants
- tThe modular valve design allows integration into
diverse process applications
- tOperating temperatures up to +140°C (+284°F)
- tCIP (cleaning in place) and SIP (sterilizing in place)
capable up to +140°C (+284°F)

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Hygienic leakage valve LV with pneumatic actuator

DTt

E/EtE/TtT/EtT/T

E/EtE/TtT/EtT/T

Hygienic leakage bottom-seat valve DT with pneumatic actuator

LVt

Design Characteristics
- tModular design, consisting of the three main
components: housing, internal assembly, and actuator
- tThe actuator and internal assembly are connected
to the housing with a three-piece clamp
- tLow-maintenance, service-friendly, and hygienic
design
- tAll product contact surfaces are made of AISI
316L stainless steel (materials certificate available
upon request) with a surface finish of 0.8 μm Ra
that meets all common hygienic standards
- tComplete actuator made of stainless steel
- tCustomer-specific materials and surface finishes
available upon request
- tValve connections can be provided with hygienic
flanges, screw connections, or clamps
- tAll valve positions can be detected at the top of
the actuator
- tThe low-maintenance design enables low operating and maintenance costs
- tMinimum number of seals that come into contact
with the product due to the use of welded stainless steel folding bellows
- tThorough cleaning and steaming of the bottom
valve seat possible through seat lifting
Valve Housing
Housings for leakage valves are available with either
two, three, or four port connections. Housings for
leakage bottom-seat valves are available with one
or two port connections. For both types, the valves
are produced with standard butt-weld connections
by default. In addition to the normal bottom-seat
version, DT housings are also available with welded
or screwed flange connections.
Internal Assembly
The standard version of the top valve seat is designed with a Tefasep® seal and the bottom seat
with an EPDM seal (additional sealing materials
available upon request). The internal assembly can
be equipped with an optional steam connection and
thus offers the possibility of a depressurized
sanitation of the leakage chamber.
Actuator
The pneumatic actuator for the hygienic leakage
valves LV and leakage bottom-seat valves DT is
designed to be spring-closing / air-opening (NC).
In the standard design, this permits the lifting of the
bottom valve seat in addition to the full stroke.