ARCA Regler GmbH 9 Commissioning / Decommissioning
Series 8C D / 6H D 19 / 2811.2018 / 1.0
9 Commissioning / Decommissioning
Before the initial
commissioning
In order to avoid damage to the trim due to possible existing contamina-
tion in the piping network, the piping network must be cleaned by rinsing
and if necessary pickling.
The following procedures are recommended:
Rinsing with rinsing set
A rinsing set and rinsing flange(s) is mounted in place of the trim.
▪ Completely dismantle the valve so that only the housing remains in
the pipeline
▪ Mount the rinsing set in place of the seat (to be ordered separately)
▪ Mount the rinsing flange(s) (to be ordered separately)
▪ Rinse and if necessary pickle
▪ Dismount the rinsing set and the rinsing flange(s)
▪ Clean the valve and replace the seal(s)
▪ Mount the trim and completely reassemble the valve
Rinsing with spacer
A spacer is installed in the pipeline in place of the valve
▪ Remove the valve from the pipeline (flange-mounted valves only)
▪ Install the spacer in the pipeline
▪ Rinse and if necessary pickle
▪ Remove the spacer from the pipeline again
▪ Replace the seals
▪ Install the valve in the pipeline again
Commissioning
▪ Pay attention to the chapter entitled [2] Safety
▪ Avoid thermal shocks
– Bring the valve slowly up to operating temperature
At a temperature difference of 300 K or more, the speed of tem-
perature change must be restricted to max. 2 K/min.
▪ Check the flange connections for leaks
– Tighten the bolted connections diagonally. Refer to the chapter
entitled [12] Torque tables for the tightening torques
▪ Check the stem sealing for leaks
– See the chapter entitled Stem seal – Detail X for this
Decommissioning
We recommend the following procedure for taking the valve out of ser-
vice:
The valve remains installed
In case of lengthy standstills, the valve and the pipeline must be emptied
and rinsed, depending on the operating medium.
The valve is removed
▪ Pay attention to the chapter entitled [2] Safety
▪ Remove the valve from the pipeline
▪ Treat the interior of the housing with a suitable preservative and seal
the openings with suitable caps
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