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Correct
Connection at the side – optimal
Fig. 5: Control line connection
NOTICE
!
Risk of valve damage due to a sudden
pressure increase and resulting high flow
velocities.
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 of the pressure actuator at the
valve and seal the open connection with a
blanking plug (see Table 4).
NOTICE
!
Risk of damage to the diaphragm actuator
due to impermissible excess pressure.
The test pressure must not exceed the pres-
sure rating at the actuator (6) by 1.5 times
on testing the pressure of the plant when the
regulator is already installed.
EB 3131-1 EN
Connection at the top – incorrect position
Connection at the bottom – incorrect position
Table 4: Accessories
Accessories
Blanking plug
Gasket
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. Adjust the maximum differential pressure
at the regulator (see section 6.1.2).
4. Adjust the maximum pressure at the
pressure control actuator (see sec-
tion 6.1.3).
5. Rinse out the pipeline at full flow rate for
several minutes.
6. Check the strainer (e.g. measure the
pressure drop) and clean it, if necessary.
Mounting and start-up
Item no.
8323-0030
8412-0771
21
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