Samson 3724 User Manual

EB 8048-2 EN 5-1
Installation
5 Installation
The work described in this section is only to
be performed by personnel appropriately
qualied to carry out such tasks.
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
process conditions and are intended as rec-
ommendations. Contact SAMSON if the
lengths are signicantly shorter than the rec-
ommended lengths.
To ensure that the valve functions properly,
proceed as follows:
Î Observe the recommended inlet and
outlet lengths (see Table 5-1). Contact
Table 5-1: Inlet and outlet lengths
Q
b x DN
a x DN
b x NPS
a x NPS
State of process
medium
Valve conditions Inlet length a Outlet length b
Gas Ma≤0.3 2 4
Vapor Ma≤0.3
1)
2 4
Liquid
Free of cavitation/w<10m/s 2 4
Cavitation producing
noise/w≤3m/s
2 4
Cavitation producing
noise/3<w<5m/s
2 10
1)
No wet steam
Q Flow rate
a Inlet length
b Outlet length

Samson 3724 Specifications

General

Brand	Samson
Model	3724
Category	Valve Positioners
Language	English