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Honeywell V48F Manual page 6

Diaphragm gas valves
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V48A,F,J; V88A,J
INSTALLATION
CAUTION
1. Turn off gas supply before starting installation.
2. Disconnect power supply before beginning in-
stallation to prevent electrical shock and equip-
ment damage.
3. Do not remove seal over valve inlet or outlet
until ready to connect piping.
4. Do not bend tubing at the valve after the com-
pression nut is tightened because this may
result in gas leakage at the connection.
5. Install valve in a horizontal pipe line in any
upright position with the gas flow in the direc-
tion indicated by the arrow on the casting.
PREPARE PIPING AND INSTALL VALVE (FIG. 3)
1. Use new, properly reamed pipe free from chips.
2. Do not thread pipe too far. Valve distortion or mal-
function may result from excess pipe in valve.
Fig. 3—Preparing piping and installing valve.
RIGHT
NORMAL FULL
THREAD
RIGHT
NORMAL FULL
THREAD
RIGHT
BLEED
GAS
VISE GRIPS
TAPPING
END NEXT
TO PIPE
BEING
INSERTED
60-2080—8
EXCESS DOPE
MAY BLOCK
2 CLEAN
DISC OFF
THREADS,
VALVE
MODERATE
SEAT
AMOUNT
OF DOPE
LOOSE CHIPS
WRONG
REAM PIPE,
BLOW OUT
CHIPS (THEY MAY
LODGE ON SEAT)
3. Apply good quality pipe dope, putting a moderate
amount on the male threads only. If pipe dope lodges on the
valve seat, it will prevent proper closure. If using liquefied
petroleum (LP) gas, use pipe dope resistant to action of LP
gas.
4. Install valve in a horizontal pipe line in an upright
position with the gas flow in the direction indicated by the
arrow on the casting.
5. Apply a parallel jaw wrench only to the flat next to
the pipe being inserted. A wrench applied to the valve body
itself or to the end farthest from the pipe being inserted may
distort the casting, causing a malfunction.
6. The gas flow MUST be in the same direction as the
arrow on the bottom of the valve body.
WARNING
If flow is not in direction of the arrow, the valve
may not shut off.
TOO LONG,
DISTORTS VALVE
SEAT
WRONG
TOO LONG,
DISTORTS VALVE
SEAT
RIGHT
WRENCH
CORRECTLY
APPLIED
NEXT TO
PIPE BEING
INSERTED
PILOT GAS
TAPPING
6
WRONG
NEVER USE VALVE
AS A HANDLE
WRONG
WRENCH HERE
STRAINS VALVE BODY
M7299

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This manual is also suitable for:

V48aV88aV88jV48j