INSTALLATION AND MAINTENANCE INSTRUCTIONS
Installation and maintenance must be done
to the requirements of the local building code or governing
agency; or, in the absence of local building codes, to the
requirements of the National Fuel Gas Code (ANSI Z223.1),
and, if applicable, the National Electrical Code (ANSI/NFPA
70). Installation and maintenance must be performed by personnel
having the qualifications required by law to install and service
natural gas lines and equipment.
Whenever possible, the valve should be installed
in the gas line before the line enters the protected structure.
Generally this is on the customer’s side of the meter;
but may be upstream of the meter if allowed by the utility.
Install valve in upright position with the
gas flow in the direction of the arrow on the valve body.
The plumb chain in the level indicator on the side of the
valve must be centered in the hole in the bracket through
which it passes.
Warning: If the valve is installed so the
gas flow is in the direction OPPOSITE FROM THE ARROW on the
valve body, the valve WILL NOT OPERATE PROPERLY.
VALVE INSTALLATION
Model |
Turning
effort (inch-pounds) |
300/310 |
560 |
301/311 |
750 |
302/312 |
875 |
303/313 |
940 |
314 |
1190 |
315 |
1310 |
316 |
1500 |
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The valve must be rigidly mounted to the earth,
to the foundation, or near the foundation of the protected
structure, so that seismic movements will be transmitted to
the acceleration trigger mechanism located within the valve
assembly.
The valve should only be installed in gas
lines whose maximum pressure will never exceed the pressure
rating stamped on the valve’s nameplate band. During
installation, when making pipe connections to the valve body,
the turning effort on the valve body’s pipe threads
SHALL NOT EXCEED the figures in the table to the right.
After the installation is complete, the gas
service should be restored according to the directions given
below under "Opening & Resetting of the Valve."
VERIFICATION OF VALVE OPERATION
Unless otherwise specified by code, it is
recommended that the valve be inspected at least once a year
to assure it is level and has not been damaged. If the valve
is found to be out of level or appears damaged, the customer
should call a qualified gas service person to arrange repairs.
Warning: Read the following sections before attempting to
reset the valve.
OPENING & RESETTING OF THE VALVE—MODELS 300, 301, 302, 303
When the valve is closed, a Red Bar will
be visible through the window in the position indicator, which
is located on the bottom of the red bonnet, just above the
clamp band. To open the valve, first verify that the main
gas shutoff valve is closed, then gently rotate the Reset
Cam (located on the side of the valve) in the direction indicated
by the "to open" arrow, until the Green Bar is visible
through the window. Release the turning effort. If reset has
occurred, the Reset Cam will return to its original position,
and the Green Bar will remain visible through the window.
The valve is now open, and the acceleration trigger mechanism
is set to respond to a seismic disturbance. The main gas shutoff
valve may now be opened.
OPENING & RESETTING OF THE VALVE—MODELS 310, 311, 312, 313, 314, 314F, 315, 315F, 316, 316F, 317F, 318, 318F, & 319F
When the valve is closed, a Red Bar will
be visible through the window in the position indicator, which
is located on the bottom of the red bonnet, just above the
clamp band. To open the valve, first verify that the main
gas shutoff valve is closed, then gently rotate the Reset
Cam (located on the side of the valve) in the direction indicated
by the "to open" arrow, which will open the pressure-release
poppet in the center of the valve’s disc. Hold the Reset
Cam in this position until the pressure equalizes across the
valve’s disc. Then, with very little turning effort,
continue rotating the Reset Cam until the Green Bar is visible
through the window. Release the turning effort. If reset has
occurred, the Reset Cam will return to its original position,
and the Green Bar will remain visible through the window.
The valve is now open, and the acceleration trigger mechanism
is set to respond to a seismic disturbance. The main gas shutoff
valve may now be opened.
Warning: If the reset shaft does not
return to its original position, or the valve remains closed
and will not reset, the gas service must be shut off and the
valve replaced before service can be restored. If the valve
will not reset, please call the factory or your distributor
for technical service.
After an Earthquake
The acceleration trigger mechanism within
the valve has been factory tested to verify that the finished
valve complies with national (ASCE 25-97) and state (California
12-16-1) standards. Gas plumbing damage may have occurred
during an earthquake or aftershock. If a gas leak exists,
gas service should be turned off at the main shut-off valve.
Do not restore the gas service without assistance from a qualified
person. You will be safer if you let authorized personnel
restore service.
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