The flexible electric ball valve is generally applicable to the structures where the pipeline passes through the wall and is subject to vibration or strict waterproof requirements. After the processing of the casing part is completed, the outer wall of the casing shall be painted with one coat of primer (primer includes camphor or cold primer oil). Electric ball valve is divided into rigid electric ball valve and flexible electric ball valve. The two are mainly used in different places. The flexible electric ball valve is mainly used in places with high requirements such as civil air defense walls and pools. The rigid electric ball valve is generally used in places where pipes such as basements need to pass through the pipeline ground. The flexible electric ball valve is a hardware fitting applicable to the structure where the pipeline passes through the wall and is subject to vibration or strict waterproof requirements. If the wall where the flexible electric ball valve passes through the wall is not concrete, the concrete wall should be used instead, and the casing must be solidified in the wall at one time; Flexible electric ball valve is widely used in construction, chemical, steel, tap water, sewage treatment and other units.
Inspection of quality and safety conditions and standardization of supervision work at the construction site. The most important matters: First, the construction unit personnel have poor quality and safety awareness, the professional quality of the construction team is not high, and the standardization of construction quality and safety supervision has not been implemented. 2、 Focus on the inspection of project construction quality problems, potential safety hazards, review of various safety data to ensure quality, and supervision of project management personnel. III. In terms of quality, carefully review the reserved specification of balcony coping reinforcement, the concrete standard curing room records are comprehensive and standardized, and the construction drawings are strictly reviewed. Fourth, reserve wire sleeves and junction boxes, arrange relevant lines and reserve electric ball valves as required; V. In terms of safety, there are irregularities in the erection of external scaffolding, the installation, operation and maintenance of mechanical equipment meet the requirements, the safety protection is tight, the safety management forms a closed management loop, and the construction power is reasonably allocated according to the regulations.