VTop Control Valves
M/VTOP-M/E ed. 01 2020
3.12.4 – SOFT SEAL REPLACEMENT - TRIM
ATTENTION
IF THE VALVE IS FITTED WITH A SOFT SEAL, CONSIDERING THE COMPLEXITY OF THE OPERATIONS FOR SOFT
SEAL REPLACEMENT, YOU ARE ADVISED TO CONTACT OUR SUPPORT SERVICE.
ATTENTION
TO OPEN THE VALVE, PROCEED AS DESCRIBED IN POINT 3.4.1
For the
DN 15-50
valves Fig. “SOFT TRIM DN15-50”, proceed as follows:
unscrew the locking nuts ref. 5f – remove the washer ref. 5e – remove the profile 5d – remove the seal ring 5c
Carefully clean the compartments and proceed to replace the ring 5c, then tighten the nuts according to the table
indicated in the figure.
For the
DN 65-50
valves Fig. “SOFT TRIM DN65-200”,
For the DN65-200 valves, it is forced/precise inside the cage to guarantee sealing of the rings EK3245, pay
attention during removal
unscrew the locking nuts ref. no.5k – dismantle the bottom ref. no.5j – remove the seal ring 5i
Carefully clean the compartments and proceed to replace the ring 5i, then tighten the screws according to the table
indicated in the figure.
When the soft seal is changed, the body gasket must also be changed, see 3.4.1
Fig. SOFT TRIM DN15-50
Fig. SOFT TRIM DN65-200
SEAL TIGHTENING FORCES TABLE
DN 15-20
DN 25-32
DN 40-50
DN 65-100
DN 125-200
6/7 Nm
8/9 Nm
9/10 Nm
8/9 Nm each screw
9/10 Nm each screw
