Shanghai Weiwang Technology Co., Ltd. products

Firestop or fireproofing is a form of passive fire protection. It is used to seal around openings and between joints in a fire-resistance-rated wall or floor assembly. Fire stopping is to seal around gaps between fire resisting constructions, e.g. the linear gap between a wall and the floor above, in order for construction to form a complete barrier to fire and smoke spread.

The Flood Door is a special door to prevent flood from flowing through the entrance to the building when flood disaster occurs. It is applicable to the entrances and exits of buildings, subway stations, underground traffic passages, important underground equipment rooms and underground garages, as well as the flood control of low-lying buildings. Multi-short aluminum alloy multi-piece modular flood baffle, can also be made into a flood wall or embankment.

This product is a one-component polyurea coating(WS-01which is composed of a one-component weather-resistant polvurea resin with additive sinorganic pigments and high-quality fillers. Using weather-resistantand aging-resistant material sit can be directly exposed to sunlight and is an outdoor protection product with excellent performance. The product construction is convenient and quick and it can be used immediately after opening the cover. After construction according to the requirements, an overall seamless coating film is formed. The coating film has super weathering and aging resistance, high strength and super cracking resistance.  It solves the difficulty of flood control and blocking when the pipe fittings pass through the outer wall.

The backwater valve is a one-way check valve. When the medium flows in the forward direction, the valve flap opens under the action of fluid pressure; when the medium flows in the reverse direction, the valve flap closes under the spring force and the reverse fluid pressure to close the channel to prevent backflow.