11
Dampers
Optional dampers can be used to influence the
closing characteristics. A dampening medium slows
down the plate movement during the last 15° of the
closing path. As a result the plates close more
slowly and, as a consequence, problems caused by
pressure surges in the pipe are prevented.
The optional dampers can be used with
temperatures up to 110 °C.
Note that the dampers must not be used in
pressure booster installations if the pressure at the
suction side exceeds 0.5 bar.
In these installations pressure compensation
between the suction and the pressure side of the
equipment may occur. The equipment may not
close properly any longer.
End connections
The equipment can be installed between flanges as
per EN 1092-1.
Equipment types BB 1 ASME and BB 3 ASME can
be installed between flanges as per ASME B16.5 or
B16.47.
Storing and transporting the
equipment
Attention!
Equipment can be damaged if stored or
transported improperly.
Close all openings with the sealing
plugs or covers supplied with the
equipment or use similar sealing
covers.
Protect the equipment against
moisture and corrosive atmospheres.
Please contact the manufacturer if the
specified transport and/or storage
requirements cannot be met.
Storing the equipment
Please observe the following items when storing
the equipment:
Do not store the equipment for more than 12
months.
Protect the sealing surfaces and contact areas
against mechanical damage.
Protect the equipment and all components
against hard shocks and impacts.
Store the equipment only in closed rooms that
meet the following environmental conditions:
Air humidity below 50 %, not condensing
Indoor air: clean, salt-free and non-corrosive
Temperature 5–40 °C.
Make sure that all these requirements are
always met when storing the equipment.
Please contact the manufacturer if you cannot
comply with the recommended storage
conditions.
Transporting the equipment
Meet the requirements for storage also when
transporting the equipment.
For short distances (only a few metres) you can
transport the equipment unpacked.
When transporting the equipment over larger
distances use the original packaging.
If you do not have the original packaging use a
box that protects the equipment adequately
against corrosion and physical damage.
For a short period of time the equipment
may be transported even if the
temperature is below 0 °C, provided that
the equipment is completely empty and
dry.
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