SPX APV DELTA SV1B, Operating Manual

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Modulating-Butterfly Valve with Top Control TC 8630
DELTA SV1B and SVS1FB
Operating manual : rev. 0
DELTA SV1B / SVS1FB-UK0.qxp / 09.2007
3
3. Mode of operation
UK
Use of high-quality stainless steel and seal materials to the
specified requirements, the butterfly valve range DELTA SV1B
and SVS1FB is applicable in the food and beverage industries as
well as in the pharmaceutical and chemical industries.
The function of the butterfly valve with positioner is to shut off
line sections and to control flow quantities in line sections.
The modulating butterfly valves of the ranges DELTA SV1B and
SVS1FB are controlled by a positioner TC 8630 (company Bürkert).
For the positioner a separate operating manual (see chapter 4.)
is available.
The positioner (E) provides for the specified allocation of
the valve position and input signal. It compares the input signal
(4-20 mA)from the modulating device with the turning position
of the valve and emits the output signal, i.e. the pneumatic set
pressure to the turning actuator (C) .
Depending on the requirements, the modulating valve can be
operated normally closed (air-to-raise, spring-to-lower) or normally
open (air-to-lower, spring-to-raise).
NC - The turning actuator opens with set pressure and closes
with spring pressure.
NO - The turning actuator closes with set pressure and opens
with spring pressure.
The valve position can be monitored through an indicator in the
coupling area (B) .
Reset by spring force.
The connections for the electric and pneumatic supply are located
laterally at the positioner (D) .
Cleaning of the product-wetted valve surface is performed during
cleaning of the pipeline.
The valves can also be used in vacuum systems.
A
C
D
E
B