Flo Plug one-way floor valve
Characteristics
The Flo-Plug tank floor check valve is a self-contained safety unit that goes in the floor of retention tanks or basins to protect structures from damage in the event of rising water tables or the release of gas in for example landfill sites.
Flo-Plug is an innovative, patented product that has no moving parts. It is in the shape of a "hat" made from glass fibre-reinforced polyester resin covered with a gel coat. In the top section are several orifices covered with an EPDM membrane.
When the table water or gas starts rising, the membrane is pushed slightly away from the hat to let the water or gas pass through.
Once the basin is full, the weight of the water in the tank or basin flattens the membrane against the surface of the hat. The orifices are then sealed, stopping water from escaping. The Flo-Plug design guarantees a positive seal once the water table subsides.
The Flo-Plug tank floor check valve is ideal for retention tanks. It can be fitted to concrete structures or into flexible geomembranes in catchment basins.
Unlike traditional tank floor relief valves or foot valves, Flo-Plug takes up very little room, is light, and is easy to install! Once fitted, it requires very little attention.
The Flo-Plug tank floor check valve comes with grade 1.4401 (316) stainless steel fittings for longer life.
Flo-Plug can withstand an internal i.e tank pressures of 1 bar or 10 metres head of water. It is highly resistant to salt water, fresh water, and foul water, to corrosion and extreme weather conditions, to UV and thermal shock, and to mechanical stress.
Flo-Plug comes with a nominal bore of 200mm.
To ascertain how many Flo-Plug valves your application requires, contact us for a customized recommendation.
Installation / Application
Installation example: concrete tank in a sewage treatment plant.
Installing a Flo-Plug tank floor check valve in a concrete slab is quite simple. The following tools are needed: a power drill with an 8mm drill bit, a 13mm wrench, a hammer, and eight 8mm dia. anchor bolts (supplied with the Flo-Plug tank valve).
First check the surface the Flo-Plug is about to be installed on is perfectly flat, clean, and bump free. Also check the diameter of the orifice in the concrete slab is not more than 200mm.
Next locate the check valve body on the face of the concrete, centre it, and trace out the fastening holes on the flange. Drill 8mm holes at the marked points to a depth of 65mm and push the anchor bolts in. Locate the flap valve body on the anchor bolts and tighten all the bolts uniformly with a torque of 12Nm. For installation on a geomembrane a back flange is also required. This is supplied with the geomembrane version of the Flo-Plug tank check valve. If the geomembrane should need to be ballasted with rubble or such like, there needs to be a height spacer between the geomembrane and the Flo-Plug (please ask).


