Krom Schroder JSAV 50, Operating Instructions Manual, Page: 6 / 8

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Replacing the valve disc
▷
The valve disc has to be replaced if the JSAV is
leaking or has been damaged during resetting.
▷
We recommend cleaning the O-ring seats and
lightly greasing the O-rings with Klüber Nontrop
ZB91 DIN before installation.
 Depressurize the system.
▷
We also recommend replacing the entire seal set
and the bellows when replacing the valve disc.
▷
The seal set with bellows is available separately
as a spare part.
▷
Ensure that the JSAV is closed. The red “SHUT”
mark must be visible.
▷
If the JSAV is open, apply pressure to the impulse
line to close the valve.
 Detach the impulse and breather lines from the
JSAV.
7 6
4 5
3
Press the
reset lever and
turn until the
valve disc is
on top.
WARNING
Risk of injury!
– The spring wire is under high stress.
10 11
8
12 14 13
9
15 16
Insert new
O-rings from
the seal set.
Press the
spring wire
into the notch
in the plate.
7 Follow the reverse procedure when reassembling
using the new valve disc and the O-rings from
the seal set.
▷
To ensure that the valve disc is pushed onto
the seat by the spring, the spring wire must be
released from the notch in the plate and rest
against the housing wall.
8 Connect the impulse and breather lines.
9 Check tightness and function, see page 3
(Tightness test) and page 4 (Checking the
function).