
40 … 76
MC • Edition 2022.08 • No
. 279 663 R
ev
. -0
41 … 76
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only with external pulse
only with external pulse
5.0 Initial Checking of the FRM outlet pressure
5.1 Before initially starting of the equipment, an initial
check of the FRM outlet pressure setting shall be
done.
5.2 To check the outlet pressure setting of the regulator:
5.3 Partially open a manual valve connected to the hose
in 4.0 above just enough to generate gas flow, and
check the set value (outlet pressure) using a pres
-
sure gauge. If necessary, correctly adjust the setting
according to section 11.1 Regulator Setting.
5.4 Close the manual valve, remove the hose, insert the
sealing cap A.
6.0 Checking upper(over) response pressure p
do
6.1 SBV installation on the outlet side: block the line
upstream of the SBV.
6.2 Create bypass around the FRM (see below).
6.3 Connect a line between the inlet and outlet side of
FRM using manually operated test/purge valves.
6.4 With both valves closed, slowly open the upstream
valve to charge the bypass line.
6.5 Slowly open the downstream valve in the bypass line
and monitor the increase of pressure on the outlet
side using a pressure gauge.
6.6 Avoid inadmissible high pressure on the outlet side.
Stop applying pressure immediately after the SAV
has tripped.
6.7 Once the SAV trips, read the upper (over) response
pressure on the pressure gauge on the outlet side.
6.8 If necessary, correct the SAV set points according to
the specifications in section 11.2 "SAV setting" and
check it again.
7.0 Check of the lower (under) response pressure
p
du
setting.
7.1 Release the pressure in the test section on the outlet
side until the operating pressure is reached.
7.2 Check if gas is available and release it safely in the
atmosphere.
7.3 Monitor pressure drop on the pressure gauge.
7.4 Unlock / reset SAV, if SAV is tripped.
See "3. SAV resetting" in section 12.4.
7.5 Check that all test/purge valves are closed.
7.6 Create a means to safely release the fuel gas in
downstream the SAV into the atmosphere. See
figures below and reference "4.0 Venting the test
section to atmosphere" in section 12.3.
7.7 Slowly vent the fuel gas per "4.0 Venting the test
section to atmosphere". After the SAV trips, read the
lower (under) response pressure on the pressure
gauge.
7.8 Close the vent valve, remove the hose, insert the
sealing cap.
7.9 Slowly open the shut-off valve on the inlet side.
Connections and Setup for venting the test section
Connections and Setup of a bypass line
Содержание FRM-NOC 100025 HD
Страница 17: ...MC Edition 2022 08 No 279 663 Rev 0 17 76 A B C D E A B C D E F Type UHD F Type HD...
Страница 45: ...MC Edition 2022 08 No 279 663 Rev 0 45 76 Type UHD X Y Q S W V M C A B D E G F J K L N P H O R U I...
Страница 47: ...MC Edition 2022 08 No 279 663 Rev 0 47 76 Type ND MD for 2 DN 40 DN 50 M B D E G F J K L N H X Y Q S W V O I T...
Страница 66: ...66 76 MC Edition 2022 08 No 279 663 Rev 0 14 4 Tools required A B C2 D C1...
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