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(
FYBROC
®
NM WSB SERIES VALVES
INSTALLATION OPERATION AND MAINTENANCE MANUAL
7
Fybroc
®
Wafer Style Butterfly Valves 1.5
”
– 12
”
(40 – 300 mm)
Connected Flange or Pipe
Interference
of the Disc
NOT
RECOMMENDED
Disc
D
In case of the thick wall of the connection part (flange and pipe) is too thick, chamfer the flange or the pipe inside in order to
avoid the contact of the pipe and disc. If inside diameter of the connection part is larger than size D, chamfering is not necessary.