All the lining F4 products, the interface between
straight pipes and pipe components or between straight pipes and
pipe components of our make neední»t other additional gaskets.
Sometimes, to make up for the size error, the F4 gasket meeting the
demands may be added, but not too thick, and during installation,
the concentricity between it and the pipes or pipe components must
be secured. The flanged edge of F4 is the key part of product, which
is protected by special seal cover. Please doní»t open it randomly.
Doní»t use too much strength during installation and best control
the twisting force 3.5-4k of fastening screw cap. Pay attention to
symmetry and proceed slowly when tightening. The fittingsí»
dimensions should be measured precisely. The tightening of bolts
after compelling strain should be avoided during assembling,
otherwise, the pipe fittings would be in a straining state for long
term. If dimensions doní»t fit, the terminals of pipe fittings
should be assembled again.
The fitting covers of F4 positive pressure straight
pipes all have a certain number of 2-3mm exhaust holes on them.
After installation, when coating anticorrosive layer on metal
shelter of the pipes, please note not to block the exhaust holes and
keep them ventilated. The long-term negative pressure operated
products doní»t need exhaust holes.