How about the correct use of fluorine plastic chemical pump mechanical seal?

Fluorine plastic chemical pump generally using corrosion resistant material, such as glass fiber, PVC, fluorine plastics, stainless steel, suitable for bottles, barrels, tanks, pumping corrosive liquid pool or other container. Widely used in chemical, petroleum, metallurgy, light industry, synthetic fiber, environmental protection, food, medicine and other departments. Fluorine plastic chemical pump has a stable and reliable performance, sealed performance is good, beautiful, use convenient maintenance. Engineering plastics chemical pump before work, pump body and the feeding pipe must pot filled with liquid to form a vacuum, when the fast rotating impeller blade makes liquid at high speed, liquid under the action of centrifugal force, fly away from the impeller and water pump water is thrown, the impeller vacuum area the central part of the formation. Under the action of liquid materials in the atmospheric pressure through the pipe network pressure to the feed tube. So circulates, can realize continuous transmission.

fluorine plastic chemical pump mechanical seal correct method of use:

1, the greater the amount of fluorine plastic chemical pump mechanical seal spring compression sealing effect is better. Actually otherwise, large amount of spring compression, can lead to sharp wear and friction pair instantaneous loss; Excessive compression spring lose the ability of adjusting ring end face, lead to seal failure.

2, fluorine plastic chemical water pump seal ring figure as close as possible. Actually ring seal tight more harm than good. One is the wear between seal and shaft sleeve, prematurely leak; 2 it is to increase the fluorine plastic chemical pump mechanical seal ring axial adjustment, mobile, the resistance of the frequent change in working condition when not timely adjustment; 3 it is fluorine plastic chemical pump mechanical seal spring fatigue damaged; Four is to make the ring seal deformation, affect the sealing effect.

3, fluorine plastic chemical pump static ring seal as tight as possible. Static ring sealing ring in static state, the basic relatively tight sealing effect will be better, but too tight is also harmful. One is the cause of excessive static ring seal for deformation, affect the sealing effect; The second is the static ring material in the majority with graphite, generally brittle, excessive stress can easily cause fracture; Three is to install and remove the difficult and easy to damage the static ring.

4, fluorine plastic chemical pump impeller lock as tight as possible. Mechanical seal leakage, the sleeve and the shaft leakage between ( The leakage of the shaft between) Is more common. Is generally believed that fluorine plastic chemical pump shaft leakage is between the impeller lock the mother didn't lock, actually lead to leakage of the shaft between many factors, such as axial failure, migration, contains impurities between shaft, shaft and shaft sleeve with larger shape error, contact surface damage, fluorine plastic chemical pump shaft have clearance between components, shaft thread is too long can lead to leakage between shaft. Mother lock lock will only cause axial mat premature failure, on the contrary moderate lock to lock the mother, the shaft between the mat keeps certain compression elasticity, lock the mother in operation will automatically lock timely, remain the state of good sealing between the shaft.

5, the new is better than the old. Relatively, the effect of using new mechanical seal is better than the old, but the quality of the new mechanical seal or material choose not to at that time, mechanical seal with size error is meeting influence sealing effect; Fluorine plastic chemical water pump in polymerized and permeable medium, static ring without excessive wear, or not to change as well. Because the static ring in static ring long time in the stationary state, make the polymer and the sediment is an organic whole, played a good sealing effect.

6, repairing and is better than not hurt. Once appear, the mechanical seal leakage is eager to overhaul, in fact, the seal is not damaged, sometimes simply adjustment condition or proper seal can eliminate leakage. So that can avoid waste and verify their fault judgment, maintenance experience improve repair quality.

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