What are the performance characteristics and precautions of electric butterfly valve
Electric butterfly valve is also called inflatable core mold, internal mold and bridge inflatable core mold. It is a kind of internal mold with different shapes that can shrink and shrink, which is vulcanized from applied polymer properties and high-strength fiber cloth. It is mainly used for the pouring and forming of highway bridge concrete pre tensioned and post tensioned beams. It is also used in culvert drainage works. After inflation and shrinkage, it has sufficient strength to accept the pressure of concrete. It can replace the original wood mold, bamboo mold and steel mold, and can be repeatedly used. It is a supporting product of concrete products that can reduce costs and speed up construction progress.
1、 Performance characteristics:
1. The design of electric butterfly valve is scientific and reasonable: the use of electric butterfly valve, prefabricated or cast-in-situ waste hollow slab beam components, all meet the design requirements, and the electric butterfly valve is simple, labor, time and material saving;
2. The electric butterfly valve has good aging resistance: it is made of synthetic, natural and fiber reinforced layer after vulcanization. The electric butterfly valve not only has good anti expansion strength, but also has elasticity and flexibility. The electric butterfly valve can meet the construction and application under various working conditions.
3. The operating temperature of electric butterfly valve is universal: within the range of - 10 -+90 degrees, the material of electric butterfly valve will not change.
4. The electric butterfly valve provides the necessary conditions for the lightweight construction of bridges and buildings on site: the prestressed hollow slab concrete component, because of the electric butterfly valve, is more than 20% lighter than the non prestressed solid component, so it can reduce the weight of the superstructure of the building, shorten the pile foundation, increase the span, and make the site construction cumbersome and safe.
5. The construction process of the electric butterfly valve is tedious, safe and sanitary: only a few simple tools are needed to use the electric butterfly valve, and no special process is required; Just put the electric butterfly valve into the reinforcement cage, and when the inflation pressure reaches the working pressure (according to the pressure gauge and the instruction book), concrete can be poured. When the concrete solidifies, deflate the electric butterfly valve and draw it out to complete the molding of waste components, and the electric butterfly valve will not pollute the environment.
2、 Precautions:
1. If it is not used for a long time, it should be washed and dried, filled with talcum powder inside and coated with talcum powder outside, and placed in a dry, cool and ventilated center indoors.
2. It shall be stretched out and laid flat, and shall not be stacked or piled with weights.
3. The center of the deposit should be far away from the heat source to avoid damaging itself.
4. Do not contact with acids, alkalis, oils and organic solvents.