In order to prolong the durability of glass bead and prevent its spallation from paint after extruding by vehicles, these beads are coated with a special coating during the production process to increase the adhesion between glass bead and paint, so that can prolong the durability of glass bead above 20%.(It is usually used for surface treatment of Drop on glass beads).
The glass bead can be produced based on the standard of countries or areas, such as EN1423/1424, AASHTO M247, BS6088, JIS R3301 and KS L2521 etc.
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Plastic centrifugal pump operation precautions
[Asia Pump Network News] plastic centrifugal pump operation properly or not, related to the safe use of the pump, or even the operator's personal safety. So in the operation of plastic centrifugal pump, what should pay attention to? Matters needing attention in the operation of plastic centrifugal pump 1, no water run, do not adjust suction port to reduce the displacement, prohibit running at too low flow rate; 2, Monitor the operation of the process, completely prevent packing box leakage, replace the packing box with a new packing; 3, to ensure that mechanical seals have a flush full of water, water-cooled bearings prohibit the use of excessive water flow; 4, do not use too much lubricant; The cycle is checked. Establish operating records including operating hours, packing adjustments and replacements, adding lubricants and other maintenance measures and times. Record and record pump suction and discharge pressures, flow rate, input power, temperature of wash fluid and bearings, and vibration conditions on a regular basis. 6, the main pump is relying on the atmospheric pressure will be low water pumping to a height, and the atmospheric pressure can only support about 10.3m of water column, so the pump host leaving the water 12 meters can not work. Above is the operation of plastic centrifugal pump need to pay attention to the matters, these are for your reference only. Read more: China Building Water Exhibition Pump Valve Tube Fittings Exhibition Water Expo Xiamen Maritime Exhibition Internet + Forum Yiwu Expo Industry Interconnection (Xiamen) Technology Co., Ltd. Asia Pump Network Editor: He Duanhui (QQ / WeChat:) http://beng.liuti.cn/ (service hotline:)