1, the selection of goggles should be selected by the product inspection agency inspection of qualified products;
6. Prevent heavy fall and heavy pressure, and prevent hard objects from rubbing lenses and masks.
Two types of use of safety protective glasses: amber safety glasses,safety glasses,dark safety glasses,cool safety glasses, anti fog safety glasses Behappy Crafts (suzhou)Co.,Ltd , https://www.haoyuebehappy.com
2. The width and size of the goggles should suit the user's face shape;
3, lens wear rough, lens frame damage, will affect the vision of the operator, should be replaced in time;
4. Goggles should be specially used to prevent eye diseases;
5, the filter and protection of welding goggles should be selected and replaced according to the requirements of the specified operation;
A. Anti-cementing debris
Mainly used to prevent metal or sand debris and other mechanical damage to the eyes. Lenses and frames should be of solid construction and resistant to impact. The frame of TDAF001 sky shield is equipped with a shielding edge, and there shall be ventilation holes on it. Protective lens can choose toughened glass, adhesive glass or copper wire mesh protective lens.
B. Antichemical solution
Mainly used to protect the eyes from chemical damage caused by irritating or corrosive solutions. Ordinary flat lens can be used, and the frame should be covered to prevent the solution from splashing into. Usually used in laboratories, hospitals and other places, general medical glasses can be universal
Pneumatic diaphragm pump installation and use
Pneumatic diaphragm pump suction pipe diameter of not less than the pump inlet port diameter, such as the delivery of high-viscosity fluid, the suction pipe diameter is preferably greater than the pump inlet diameter. Suction piping on the inlet side must be durable and free of wrinkles to create a high vacuum condition. The diameter of the outlet pipe should be at least equal to the outlet diameter or slightly larger to reduce the friction loss. All piping and fittings must be leak-tight or pump self-priming will be reduced. Pneumatic diaphragm pump installation: If you ignore the installation details, a long period of careful planning, research and selection will still result in poor pumping effect and may affect the life of the pump. Location: Noise, safety and other logic often have requirements for where the equipment should be installed. Parallel installation with conflicting requirements may result in blockage in the area of ​​use, affecting the installation of other pumps. Use: First, the location of the pneumatic diaphragm pump must be easy to use, so that maintenance personnel will facilitate routine inspection and commissioning. Air Supply: Each pneumatic diaphragm pump shall have a vent tube and the vent tube shall provide sufficient air volume to achieve the desired pump flow. Air pressure according to different pumping needs, but not more than 7BAR. (125PSI) Installation height: Take full account of the self-priming ability of the pneumatic diaphragm pump to avoid the problem of self-priming reduction. Piping: The pump position can not be finalized until after considering each possible location of the piping problem. The best installation should be selected at the junction of a shortest and most straight import and export pipeline. Should try to avoid the extra elbow and pipe fittings facilities. The pump body should be able to support all piping independently. Also, the piping should be ordered to avoid stress on the pump piping. Active hoses can be installed to eliminate stress from the pump's natural movement back and forth. To attach the pump body to a fixed base, placing a cushion between the pump body and the base will help reduce body vibration.