INSTALLATION
Connecting the Fuel Shut-off Valve
1.
Before connecting the unit, apply pipe dope to plumbing male threads
that will be inserted into the valve. Do
not
apply pipe dope to the valve.
2.
Make sure that the arrow on the side of the valve indicates the correct
direction of the flow.
3.
Fuel shut-off valves can be installed in all three planes. However,
mounting the valve horizontally (with vent pointing down) is
recommended. Do
not
install valve with top down.
(Refer to
Figure 1
.)
4.
Hold valve in position, (use a tool on valve wrench flats) and tighten
plumbing into inlet and outlet ends.
(Refer to dimensions on pages 3-4.)
5.
To mount flanged models, follow the appropriate installation codes
and ordinances for the application.
(For dimensions see page 4.)
6.
A vent line (to allow gas trapped forward between fuel valve and the
carburetor to escape) should be attached to the vent connection at the
bottom of the valve housing. Remove the plug and install the line.
(
Refer to
Figure 1
.
)
Connecting Pneumatic Models
M2582-P and M5180-P
1.
Repeat the steps above (1 thru 5), and observe the necessary cautions.
2.
A lever/arm (handle) and a cocking latch are provided to allow manual
opening of the valve. The thumb-operated latch can be locked in place
to hold the lever/arm latched. The cocking latch will be released when
pilot pressure reaches 2.5 psi (17 kPa) [0.17 bar]). M2582-P and
M5180-P automatically open at 2 psi (14 kPa) [0.14 bar], and fully
open at 3 psi (21 kPa) [0.21 bar]. See Specifications, page 12 for
maximum control pressure.
3.
If vacuum control is desired, swap the Control Pressure connection
fitting and the Breather Vent fitting on your M5180-P model (see
Fig. 2
).
WARNING:
STOP THE ENGINE AND DISCONNECT ALL ELECTRICAL POWER BEFORE BEGINNING INSTALLATION. BEGIN THE
INSTALLATION BY SECURING AREA OF ANY HAZARDOUS CONDITIONS. SHUTOFF THE FUEL GAS SUPPLY. FOR HAZARDOUS
APPLICATIONS REFER TO NATIONAL ELECTRICAL CODE SPECIFICATIONS.
Remove plug and attach vent line.
Route to non-hazardous area.
Master Regulator
(High pressure)
Bypass
Regulator
Fuel Shut-off Valve
Carburetor
FUEL FLOW
Fuel
Filter
Wrench Flats
Figure 1
Physical Location and Plumbing (typical)
Figure 2
Pull the lever up, and press the latch
down into ridge with thumb.
CAUTION:
DO NOT TWIST THE VALVE BODY HOUSING.
Level Arm (Handle)
Thumb-operated
Cocking Latch
Control Pressure
Connection
Breather
Vent
CAUTION:
BE SURE PNEUMATIC SOURCE
RELEASES THE MECHANICAL LATCH WHEN RUNNING.
Installation M-7980N page 5 of 12
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