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5 Installation
The work described in this section is only to
be performed by personnel qualified for the
assignment accordingly.
5.1 Installation conditions
Work position
The work position for the control valve is the
front view looking onto the operating con‑
trols (including valve accessories).
Plant operators must ensure that, after instal‑
lation of the device, the operating personnel
can perform all necessary work safely and
easily access the device from the work posi‑
tion.
Pipeline routing
The inlet and outlet lengths (see Table 5‑1)
vary depending on several variables and
Table 5-1: Inlet and outlet lengths
State of process
medium
Gas
EB 8020 EN
Q
a x DN
Valve conditions
Ma ≤ 0.3
0.3 ≤ Ma ≤ 0.7
process conditions and are intended as
recommendations. Contact SAMSON if the
lengths are significantly shorter than the
recommended lengths.
To ensure that the valve functions properly,
proceed as follows:
Î Observe the inlet and outlet lengths (see
Table 5‑1). Contact SAMSON if the
valve conditions or states of the medium
process deviate.
Î Install the valve free of stress and with the
least amount of vibrations as possible.
Read Mounting position and Support or
suspension in this section.
Î Install the valve allowing sufficient space
to remove the actuator and valve or to
perform service work on them.
b x DN
Inlet length a
Installation
Q
Flow rate
a
Inlet length
b
Outlet length
Outlet length b
2
4
2
10
5-1
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