ARCA ECOTROL 8C D Series - 11 Disassembly; Assembly of the Valve; Procedure; Actuator; Bonnet

ARCA Regler GmbH 11 Disassembly / assembly of the valve
Series 8C D / 6H D 23 / 2811.2018 / 1.0
11 Disassembly / assembly of the valve
WARNING
Disregarding the safety instructions
Risk of injury!
► Observe the notes in the chapter entitled [2] Safety
11.1 Procedure
▪ Disassembly of the valve.
– Dismounted parts are to be secured carefully against falling down
(risk of injury or damage).
▪ Clean all components.
▪ Assembly in the reverse order using the new components.
– Seals and packings are generally to be replaced.
– Insert any existing dynamically loaded O-rings and shaped rings
using a suitable lubricant, provided that the process conditions al-
low.
– Refer to the chapter entitled [12] Torque tables for the tightening
torques of bolted connections.
– Then commission the valve according to the chapter entitled [9]
Commissioning.
11.2 Actuator
▪
WARNING!Drive the actuator to the end position and secure it.
▪ Decouple and remove the actuator.
– Follow the actuator manufacturer's mounting instructions!
11.3 Bonnet
Standard
▪ Unscrew the stuffing box screw (152)
– Refer also to the chapter entitled [10.3] Stem sealing – Detail X for
this
▪ Release the bolted connection between the housing (1) and the bon-
net (2)
▪ Lift off the bonnet (2)
CAUTION!The stem (50) may be lifted off with the bonnet (2)
– Pull the stem (50) out of the bonnet (2)
– Do not bend the stem (50)
11.4 Stem sealing
V-collars
▪ Remove the seal set (156) consisting of V-collars, support discs and
spring