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Installation Manual
EN-29
EN-30
Pipe connection method of valve at the gas side (Example)
Diameter of
pipe
Front and right leading out
Downward direction leading out
O.D.
19.05 mm
Attach the Ø19.05 pipe to the ball valve by flare
conection.
Attach the Ø19.05 pipe to the ball valve by flare
conection.
O.D.
22.22 mm
Attach Ø19.05-Ø22.22 socket to the ball valve by
flare conection and braze the locally procured
Ø22.22 main pipe.
Attach Ø19.05 pipe to the ball valve by flare
conection and braze the locally procured Ø19.05-
Ø22.22 socket and Ø22.22 main pipe.
Ball valve
Ø19.05 Main
pipe (Locally
procured)
Ball valve
Ø19.05 Main
pipe (Locally
procured)
Ø22.22 Main pipe
(Locally procured)
Ball valve
Ø19.05-Ø22.22
socket (Attached)
Ø19.05-Ø22.22 socket
(Locally procured)
Ball valve
Ø19.05 pipe
(Locally procured)
Ø22.22 Main pipe
(Locally procured)
CAUTION
• The brazed part of the pipe connection should be sufficiently away from the ball valve.
• When carrying out brazing nearthe ball valve, wrap the ball valve in a wet cloth to keep it cool and prevent the heat
from the torch from damaging it, and, prepare a shield plate on-site to prevent the soundproofing cloth or other part
from catching fire.
Wet cloth
Brazing
2FAN_IM_DB04307201-04_EN.book Page 15 Tuesday, December 17, 2019 6:34 PM