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MC • Edition 2022.08 • No
. 279 663 R
ev
. -0
12.4 Commissioning/unlocking/control of adjustment values
3.1
Unscrew the protective
cap A.
3.2
Reverse the protective cap
A and screw it again onto
the push rod of the SAV.
A
3.3
A
Use the protective cap A
as a handle.
A
1. Slowly open the shutoff valve on the inlet side per
12.2 "Initial applying pressure during commission-
ing, recommissioning or testing". The ball valve on
the outlet side remains closed.
2. Monitor the pressure rise on the pressure gauge on
the inlet side upstream of the device.
3. SAV resetting:
3.4 Compensate pressure by pulling the protective cap A
downwards by approx. 2 mm. This opens the com
-
pensation valve on the valve disc.
3.5 Monitor the pressure rise on the outlet side of the
pressure gauge.
3.6 Once the operating pressure (setting of the pressure
regulator) on the outlet side is reached, the SAV can
be reset by pulling the protective cap A
to its me-
chanical stop and until it locks in place (resets).
3.7 SAV is now reset.
3.8 Unscrew the protective cap A
from the push rod
and screw it again on the spring dome G.
4.0 Venting the test section to atmosphere
4.1 If venting fuel gas to test the setting of the FRM or
SAV, use a manual valve connected to a suitable
hose to release the fuel gas to a safe location. Or, if
a relief valve is installed, it might be possible to use it
to vent some or all of the fuel gas for proper testing.
Do not use a test burner for venting, and see 12.1
General information regarding risks of venting into
spaces.
4.2 Pressurizing Test Section
4.3 When the test section must be completely filled with
fuel gas: make sure that the test section is free from
air by using a test burner. Close the stop-cock on the
venting hose.
Содержание FRM-NOC 100025 HD
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