Mounting And Start-Up; Mounting The Actuator Onto The Valve; Force-Locking Attachment; Form-Fit Attachment - Samson TROVIS 5724-8 Series Mounting And Operating Instructions

5 Mounting and start-up

NOTICE
!
Risk of malfunction due to incorrectly per-
formed start-up.
Î Perform start-up following the described
sequence.
5.1 Mounting the actuator onto
the valve
The actuator is mounted either directly onto
the valve or using a rod-type yoke depend-
ing on the valve version used (Fig. 4).
5.1.1 Force-locking attach-
ment
1. Retract actuator stem:
− Using handwheel (TROVIS 5724-8
only) or
− Over manual level in TROVIS-VIEW
software
2. Place the actuator on the valve connec-
tion and tighten coupling nut (tightening
torque 20 Nm).
5.1.2

Form-fit attachment

1. Place the actuator on the rod-type yoke
and tighten coupling nut (4) (tightening
torque 20 Nm).
2. Place actuator with yoke (15) on the
valve and tighten the nut (17) (min. tight-
ening torque 150 Nm).
EB 5724-8 EN
3. Pull plug stem until it reaches the actua-
tor stem or extend actuator stem using
the handwheel (2).
4. Position the clamps of the stem connector
(16) included in the accessories on the
ends of the actuator stem and plug stem
and screw tight.
5.2 Installing the control valve
into the pipeline
NOTICE
!
Degree of protection not achieved due to
incorrect mounting position.
Î Do not install the valve with the actuator
suspended downwards (see Fig. 5).
Î Install the valve into the pipeline accord-
ing the specifications in the mounting
and operating instructions of the valve.
NOTICE
!
Risk of actuator damage due to direct
contact with steam.
Î During mounting, make sure that the
actuator cannot come into contact with
any steam.
Mounting and start-up
23