Bottom sump backwater valves
SUMP BACKWATER VALVES are especially suitable when the level of
this pipe is lower than the bottom part of the pipes that unload
there. This valve receives the load vertically, which allows the
receiving pipes that flow into it from any side of the sump where
it will be installed. Likewise, given that it receives these flows
vertically from different heights, it allows establishing a convenient
step in the profile of the drainage system avoiding the need to
go unnecessarily deeper during the pipeline layout or elevating
the receptor pipe, BOTTOM
SUMP VALVES are made to protect 4", 6", 8", 10"
and 12" (100, 150, 200, 250 and 300 millimeters) diameter pipelines
and to be able to utilize them, it will be necessary to have minimum
differences between the bottom part of the inlet pipe and the bottom
part of the outlet pipe as show in the Installation diagram.
How it operates
valve works automatically; since it is embedded under the
bottom of the sump where it is to be installed, the top of
the valve will be on the same level as the bottom of the sump
to receive the discharge vertically from any direction and
guide it without any obstruction to the outlet pipe. However,
whenever there is a backflow, the floater floodgate rises
over it to produce the stoppage internally against the top,
guaranteeing that no backflow reaches the protected sump.