Centrifugal pump mechanical seal repair skills I. Introduction Mechanical seal itself is a demanding precision parts, the design, machining, assembly quality has high requirements. When using the mechanical seal, the factors that affect the performance of the mechanical seal should be analyzed. The mechanical seal should be applied to the technical requirements and medium requirements of the pump, and have sufficient lubrication conditions, so as to ensure the long-term reliable operation of the seal. There are four channels of A, B, C, and D possible for the fluid in the mechanical seal shown in Figure 1 to leak. Second, the maintenance skills In the actual production operation, due to maintenance reasons, the problem of machine type selection and other uncertainties, often cause centrifugal pump leaks in operation, even in severe cases downtime, threatening production operations. In general, the shaft seal leaks are: dynamic and static end face, between the moving ring and the sleeve, the static ring and the ring seat between the sleeve and the spindle in Figure 1, between the gland and the body . Centrifugal pump leakage of this machine seal, a serious impact on pump performance, increase the frequency of centrifugal pump maintenance, increase equipment spare parts consumption. Therefore, in order to improve the life of machine seal, pay attention to several points in the maintenance. 1. Precautions for Disassembly When disassembling the mechanical seal, it is forbidden to use hand hammer and flat shovel to avoid damaging the sealing element. If there is a mechanical seal on both ends of the pump, care must be taken in the disassembly process to prevent loss. (Centrifugal pump mechanical seal repair skills)
Reading Book Light
[HANDS FREE READING LIGHT.]No more holding a flashlight by your hand or by your mouth, or wear a headlamp on your head, nodding your head like a robot to adjust the light directions when you are reading or busy in repairing. This flexible neck light helps you just focus on what you are doing without worrying about the light, whenever for reading in bed, repairing, craft, knitting, working and camping etc.
[LOVE TO READ IN BED AT NIGHT WITHOUT DISTURBING YOUR PARTNER?] Our book light is equipped by 2 LED for each arm. 1 LED for flashlight spot mode, another 1 LED for flood wide area light mode. Each arm has an independent switch for 3 brightness levels dimmable. Special lampshade design make it shining the smallest area with enough bright light for reading without disturbing your sound asleep partner.
[Eye Caring & Wider Lighting Area.]No flickering and harmful blue light filter design with advanced LED beads. Reduce eye strain for both kids and adults. 2 infinitely bendable necks allow you to set the best lighting areas you want. Paperbacks can also be used.
[NO MORE WASTING MONEY ON BATTERIES -EVER. ]FEATURES BUILT-IN RECHARGEABLE 700MAH LI-ION BATTERY. It has a life-span of 1000 cycles, equal to 3,000 pcs of AAA batteries, save your money and save the earth. Enjoy your wireless up to 10 HOURS reading without needing charge.Charger not included. Standard micro-USB CABLE included. No headache if the cable lost.
Bedside Reading Lamps,Rechargeable Book Light,Portable Reading Light,Bedside Reading Light
Ningbo Wason Lighting Technology Co.,Ltd , https://www.wasonlights.com