Pipeline Routing - Samson 2417 Series Mounting And Operating Instructions

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
State of process
medium
Gas
Vapors
1)
Liquid
No saturated steam
1)
28
a x DN
Valve conditions
Ma ≤ 0.3
Ma ≤ 0.3
Free of cavitation/w < 3
Cavitation producing noise/w ≤ 3
a
b
b x DN
Inlet length a
m /
s
m /
s
Inlet length
Outlet length
Outlet length b
2
2
2
2
EB 2517 EN
4
4
4
4