Dongfeng teaches you the maintenance and preservation of electric butterfly valve
The electric butterfly valve is simple to use, economical and durable. It can be soft and shrink without inflation, folded and curled at will, and has sufficient strength to withstand the pressure of concrete after inflation, which is incomparable to any traditional rigid formwork. It is applicable to hole drawing of reinforced concrete components, including piles, roof trusses, roof slab columns and beams, underpasses and other components. The electric butterfly valve hole forming process is convenient for construction and has a wide range of applications. It can be repeatedly used for more than 80-100 times. The electric butterfly valve is also called the inflatable core mold, bridge, hollow slab core mold, etc.
The electric butterfly valve shall be washed with water immediately after use, and a small amount of concrete shall be carefully treated, As the same as general products, they should be stored in a ventilated and dry warehouse to avoid accelerated aging caused by direct sunlight and humid environment, so as not to affect the next use; The electric butterfly valve shall not contact release agent or other organic solvents; Don't be careful not to let nails, iron sheets, steel bar heads, sharp and hard objects pierce when inserting and demoulding on site. At the same time, strengthen the protection of core formwork during the welding of positioning stirrups; If the electric butterfly valve leaks and the sealing rubber falls off, it should be repaired in time, otherwise the use and the quality of prefabricated components will be affected. The main repair method is to roughen the repair area with a wood file, and then apply cold repair glue to cover the film for repair. The fiber tear can be covered and repaired with adhesive tape. When the electric butterfly valve is not used for a long time, it should be cleaned and dried, filled with talcum powder inside and coated with talcum powder outside, and placed indoors in a dry, cool and ventilated place. It shall be stretched out and laid flat, and no weight shall be piled on it.