Start-Up - Samson 2488 N Mounting And Operating Instructions

5.5 Start-up

Î First start up the regulator after mounting
all parts.
Î Make sure that the restriction (11) is
open while filling the plant. Remove the
electric actuator and turn the set point
screw for the flow control (13) counter-
clockwise () as far as it will go (see
Fig. 2).
Î Open the shut-off valves slowly over a
time period of several minutes, prefera-
bly starting from the return flow pipe.
NOTICE
!
Risk of valve damage due to a sudden pres-
sure increase and resulting high flow veloci-
ties.
Slowly open the shut-off valve in the pipeline
during start-up.
Pressure testing the plant
All plant components must be designed for
the test pressure. If necessary, remove the
regulator from the pipeline or remove the
control line (7) of the diaphragm actuator at
the valve and seal the open connection with
a blanking plug (see Table 3).
NOTICE
!
Risk of damage to the diaphragm actuator
due to impermissible excess pressure.
The test pressure must not exceed the nomi-
nal pressure at the actuator by 1.5 times on
testing the pressure of the plant when the
regulator is already installed.
EB 3136 EN
Rinsing the plant
1. After filling the plant, first completely
open the consumer
2. Adjust the maximum flow rate at the reg-
ulator (see section 6.1.1).
3. Rinse out the pipeline at full flow rate for
several minutes.
4. Check the strainer (e.g. measure the
pressure drop) and clean it, if necessary.
Table 3: Accessories
Accessories
Blanking plug
Seal
Mounting and start-up
Item no.
8323-0030
8412-0771
19