Installation; Mounting Position; Strainer; Shut-Off Valves, Pressure Gauges - Samson 2488 N Mounting And Operating Instructions

2

Installation

2.1

Mounting position

4
Install the flow regulator in a horizontal
pipeline with its diaphragm actuator sus-
pended downward.
4
Make sure that the electric actuator is
above the valve body.
4
Make sure that the medium flows through
the regulator in the direction indicated by
the arrow on the valve body.
NOTICE
Choose a point of installation which will pro-
vide easy access to the regulator after com-
pletion of the plant.
Flush the pipeline thoroughly before installa-
tion.
Make sure the permissible ambient tempera-
ture will not be exceeded. If the valve is to be
insulated, do not insulate the actuator and
the coupling nut. If necessary, use an exten-
sion piece (order no. 1690-6975). The valve
should not be insulated more than approx.
25 mm above the top edge of its body.
2.2

Strainer

Install a strainer (SAMSON Type 1 NI) up-
stream of the regulator to prevent sealing
particles, weld spatter, pipe scale, and other
impurities carried along by the process me-
dium from impairing the proper operation,
especially the tight shut-off of the valve.
4
Make sure that the medium flows through
the strainer in the direction indicated by
the arrow on the strainer body.
4
Install the strainer with the filter element
vertically suspended. Ensure that ample
space is available to remove the filter.
2.3 Shut-off valves, pressure
gauges
We recommend installing hand-operated
shut-off valves both upstream of the strainer
and downstream of the flow regulator. This
allows the plant to be shut down
(depressurized) for cleaning and mainte-
nance routines, or when it is not operated for
long periods of time.
To monitor the pressures prevailing in the
plant, install pressure gauges both upstream
and downstream of the flow regulator.
NOTICE
When carrying out a pressure test on the sec-
tion of the plant equipped with a pressure
regulator, prevent the diaphragm actuator
from being damaged by the test pressure by
using a test pressure which does not exceed
the maximum permissible pressure D p of the
actuator.
2.4

Mounting the actuator

See Fig. 2 on page 4.
Place the actuator (16) onto the valve con-
nection and manually fasten it using the cou-
pling nut (17).
Installation
5
EB 3136 EN