Slam-Shut Controller Maintenance - Emerson Tartarini BM6X Series Instruction Manual

Slam-shut valve
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BM6X Series
In addition:
a. Complete reassembly and make sure to tighten all
screws uniformly.
b. During the shaft insertion inside the shutter it's necessary
to push spring (key 9). Make sure not to damage the shaft
surface, near the guide bushes.
c. When reassembling lever shaft (key 29) replace the
washers (key 22) and apply glue Loxeal 55-03, or
equivalent, to the screws (key 21).
!
Check the dimension "C" value indicated on
Table 6. If is necessary adjust, through the
appropriate screw (key 20), the
shutter position.
C
Figure 8. Type BM6X Shutter Position
Table 7. Type BM6X Shutter Position Dimensions
TYPE
BM6X/80
BM6X/100
BM6X/150
BM6X/200
BM6X/250
BM6X/300
10
WARNING
Screw
(key. 20)
C
Min. 1 mm - Max 3 mm
Min. 1 mm - Max 5 mm
Min. 3 mm - Max 8 mm
Min. 5 mm - Max 10 mm
Min. 6 mm - Max 11 mm
Min. 8 mm - Max 13 mm
d. After the reassembly completion, check the proper
functioning of all parts. Check the valve with soapy water,
making sure there are no leaks.
e. Remount valve on the line and reestablish all connections.
SLAM-SHUT CONTROLLER
MAINTENANCE
(SEE FIGURE 11)
Installation
a. Install the slam-shut controller in a covered area and
protect it against weather agents.
b. Check that data on the plate are compatible with actual
working conditions.
c. Make sure slam-shut controller is installed upright, i.e.
screw (key 49) on top.
Mounting in any other way will jeopardize
controller's performance.
d. Carry out the connection of gas outlet (A). It must be
derived from the pressure control piping, in a straight
tract, possibly far away from restrictions, curves or
derivations, in order to avoid turbulence that can alter the
trip pressure setpoints.
Startup
a. Using lever, activate slam-shut by turning reset stem
(key 6) in the direction shown by the arrow.
b. Wait until the pressure being controlled stabilizes and
then slowly release lever.
c. Now repeat this procedure, make sure that levers keep
slam-shut controller properly set and that lever (key 33) is
in horizontal position.
Periodical Checks
It is recommended that slam-shut controller be efficiency
checked periodically.
Cut-off Test
a. Cut-off the circuit by means of inlet and outlet valves and
disconnect the pressure control pipe (A). The slam-shut
controller should cut-off at minimum pressure (only if so set).
CAUTION

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