Complimentary Products and Services
BACK-FLOW WATER & SEWAGE VALVE (NRV)
Non Return valves (NRV’s) automatically close when water or sewage flows back through the drain
system during flood conditions. The stop valve allows normal sewage flow from the inlet to the
outlet side of the valve with absolutely no flow restriction. Integral stop points in the wing
area plus built-in flow channels combine to direct the sewage through the valve protecting the
gate from soil contamination caused by sewage flow beneath the gate.
For short term solutions FGSL currently uses two types of NRV consisting of the McAlpine T28 NRV,
and the Mainline Fullport backflow valve. FGSL team of fitters have a vast experience of
installing both of the above mentioned valves as well as experience of fitting other larger NRV’s
to bigger commercial sites.
Water Proofing Treatment
Flood Guard Systems Ltd can if specified, use a water proofing treatment on building exterior
walls such as masonry to increase its resistance to flooding. Usually this will be specified in
the surveyors report carried out on all buildings being protected. It is usually specified because
there may be concerns as to the porosity of the outer wall of a building. To ensure that the
protective measures taken have the best possible chance of preventing water ingress into a
building, all possible weak points are identified and remedied, this may include re-pointing,
filling in of cracks and applying a water proof sealing agent.
Applying a water proof sealant agent could extend the time a building is resistant to water
ingress, giving occupants the time to move valuable possessions or equipment to safer areas
of the building, also giving the occupants time to either evacuate if possible or move to a
higher part of a multi floored building.
The water proofing treatment FGSL use is a carefully designed co-polymer acrylic coating.
Clear in colour and is available in three concentrations.