GB-3
D
GB
F
NL
I
E
▷
We recommend installing a manual valve AKT 25
in the pipe leading to the safety relief valve
VSBV 25, so that the annual function check of
the safety shut-off valve JSAV can be carried out
without having to remove it.
▷
To prevent the VSBV from being unintentionally
shut off, we recommend removing the manual
valve lever after commissioning and attaching
it to the pipe.
_> 5DN
JSAV
Connecting the impulse line
▷
The connection flange is suitable for an impulse
line with a pipe diameter of 8 mm.
2
1
3
4
Push union
nut and
compression
fitting onto
the impulse
line.
▷
On the JSAV..T, remove the blind plug and con-
nect an NPT
1
/
8
impulse line.
5
Install the impulse line and seal with approved
sealing material.
▷
Ensure that there is sufficient tube length for the
impulse line.
_> 5DN
JSAV
Tightness test
WARNING
– An additional tightness test must be carried
out on the JSAV at all joints which have been
opened for maintenance work or replacement
of spare parts.
▷
Ensure that the valve seat of the JSAV is open,
see page 5 (Resetting).
Block the pipeline at the inlet and outlet.
▷
Note max. test pressure. JSAV inlet and outlet:
max. 6 bar (87 psig), impulse line: max. 750 mbar
(10.9 psig).
Slowly apply test pressure.
N
2
= max. 6 bar
N
2
= max. 750 mbar
3
4
