Our range of fiber optic end fittings combine classic styling with modern functionality, which is for decorative and functional applications.
Like all our end fittings, no electricity or heat is output from the fitting, so they are safe for use in wet or humid areas and specific models are suitable for use in high-traffic walk over areas.
If you wanna buy it, please contact with us.
End Fittings,Crystal Fittings,Fiber Optic Lighting Fixtures,Light Fittings Jiangxi Daishing POF Co.,Ltd , https://www.jxopticfibrelight.com
Three screw pump maintenance instructions
Three-screw pump maintenance instructions: For intermittent operation of high-pressure low-viscosity, low-quality lubricant or similar medium, the actual pump life will be shortened. We recommend to check every once in a while, and its working conditions are within the specified range. 1. Startup (1) Before starting the inspection of all pipe flanges, joints tightness, tight leak. (2) Turn the coupling to check whether the rotation of the pump is flexible. If there are other problems such as jamming, remove the pump. (3) The first start should be unscrewed the safety valve refueling screw plug or remove the cover, the pump into the liquid and hand counterclockwise rotation of the coupling to ensure that the friction pairs have sufficient lubrication (4) before starting all Open all the suction and discharge valves in the pipeline, closed valve is strictly prohibited. Check motor rotation is correct. (5) After the preparation is completed, can be connected to the power, direct start. 2. MAINTENANCE (1) If the sound of the pump and the motor is abnormal (or the current meter pointer rises rapidly), stop immediately to find out the cause. (2) The outlet pressure must not exceed the pressure shown on the pump's nameplate. (3) Safety valve has been adjusted before production, can not be arbitrarily mobilized. (4) If the pipeline system fails, there should be a safe return to stop troubleshooting immediately. General safety valve reflux time shall not exceed three minutes. If the pump is too long, the pulse wave generated by the returning fluid will cause the pump to vibrate and even cause the pump to "bite". (5) drip leakage at the shaft seal is a normal phenomenon, such as oil leakage greater than 10 ml / hour, should stop troubleshooting or replace the new seal components. (6) In the circuit controlling the operation of the motor, there should be overload protection components. Such as pump "biting dead", should cut off the power automatically, in order to prevent the electrical machinery to burn out. 3. Stop screw pump must not close into the outlet valve shut down. If heavy fuel oil, asphalt and other highly viscous media are to be transported, the pump thermal insulation valves 1, 2 should be opened to keep the temperature of the pump after the standby pump is shut down. This will prevent the pump or motor from being damaged immediately when the emergency starts. 4. Storage (1) Store the pump warehouse should be kept dry, well-ventilated to avoid corrosion. (2) If the pump has been rusty due to improper storage or storage for a long time, the pump should be disassembled and cleaned again. Remove the scale, the surface of the parts during assembly process with oil to prevent corrosion.