Samson 2417 Series, Монтаж и эксплуатация

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28 EB 2517 EN
Installation
5.2.2 Pipeline routing
The inlet and outlet lengths vary depending
on the process medium and the flow condi -
tions in the valve. To ensure the regulator
functions properly, follow the installation in-
structions given below:
Î
Observe the inlet and outlet lengths (see
Table 6). Contact SAMSON if the valve
conditions or state of the medium process
deviate.
Î
Install the regulator free of stress and
with the least amount of vibrations as
possible. If necessary, attach supports to
the valve.
Î
Install the regulator allowing sufficient
space to remove the actuator and valve
or to perform service and repair work on
them.
Table 6: Inlet and outlet lengths
a x DN b x DN
a Inlet length
b Outlet length
State of process
medium
Valve conditions Inlet length a Outlet length b
Gas Ma ≤ 0.3 2 4
Vapors
1)
Ma ≤ 0.3 2 4
Liquid
Free of cavitation/w < 3
m /
s
2 4
Cavitation producing noise/w ≤ 3
m /
s
2 4
1)
No saturated steam