Additional Fittings - Samson 2373 Mounting And Operating Instruction

5.2.2

Additional fittings

Strainer
A strainer installed upstream in the flow pipe
holds back any dirt or other foreign particles
carried along by the medium. For example,
the SAMSON Type 2 NI Strainer is suitable
(u T 1015).
− Do not use the strainer to permanently
filter the process medium.
− Install the strainer upstream of the regu-
lator.
− The direction of flow must correspond to
the arrow on the valve body.
− Allow sufficient space to remove the filter.
− Horizontal pipeline
Cover and filter face downwards.
− Vertical pipeline
In strainers where the medium flows up-
ward, the cover and filter face upward.
1
p
1
Shut-off valve for upstream
1
pressure
2 Strainer
3 Upstream pressure gauge
Fig. 6:
Installation example for Type 2373 Universal Pressure Reducing Valve
EB 2534 EN
4
2 3
Type 2373 Universal
4
Pressure Reducing Valve
5 Downstream pressure gauge
Shut-off valve
Install a hand-operated shut-off valve both
upstream of the strainer and at the outlet of
the return flow pipe (see Fig. 6). This allows
the plant to be shut down for cleaning and
maintenance, and when the plant is not used
for longer periods of time.
Safety valve
To safeguard the plant against excess pres-
sure, install a safety valve downstream of the
shut-off valve on the downstream side (see
Fig. 6).
Pressure gauges
Install a pressure gauge both upstream and
downstream of the regulator to monitor the
pressures prevailing in the plant (see Fig. 6).
Optionally with pressure gauge connections
on the valve body.
5
6
7
Mounting and start-up
6 7
p
2
Shut-off valve for down-
stream pressure
Safety valve
23