Mechanical seal (mechanical seal) refers to the lower end surface by at least one pair perpendicular to the axis of rotation under fluid pressure and spring force compensation mechanism (or magnetic) effects and secondary seal affixed combined with relative sliding holding constituted prevent fluid leakage devices. Elastic loading mechanism and secondary seal is metallic bellows mechanical seal we called metal bellows seal. In light seals, as well as the use of rubber bellows seal auxiliary rubber bellows stretch limited, generally need to be supplemented to meet the load spring stretch. "Mechanical seal" that is often referred to as "mechanical seal." Mechanical seal is a seal device for rotating machinery. Such as centrifugal pumps, centrifuges, reactors and compressors and other equipment. Due to the presence of the drive shaft through a gap between the inner and outer circumference of the device, so that the axis of the machine, the media leak out through the gap, if the pressure is lower than atmospheric pressure inside the device, the air leakage into the device, so there must be a The shaft sealing device prevents leakage. Many types of seal, due to the mechanical seal has less leakage and long life, etc., so the world of mechanical seals in these devices is the most important way of shaft seal. Mechanical seals, also known as seal, in the relevant national standards are defined as: "by at least a pair of vertical kept under fluid pressure and compensation mechanism stretch (or magnetic) role and assist with the seal affixed to the end face of the rotation axis of the merger means to prevent fluid leakage. (1), the shaft sleeve does not leak many sleeve projecting sealed box, so to determine the source of the leak is very difficult. leak bushings are generally stable, while the relative sliding seal constituted surface leakage often increase or decrease after the sealing surface leakage, the surface uneven, but sometimes the run to the status quo ante. (and sometimes do not rush to overhaul can be observed for some time to say) (2), if the seal is surrounded by moist, And see the drain. This centrifugal force generated when starting pump operation makes the leaked liquid back into the sealing surface of the mechanical seal, since a barrier. And from the flange or connector on the pump leaked liquid drip packing box . (3), to make the thermal expansion in the metal splice member graphite ring loose, it may be due to low temperature so that the O-ring loss of elasticity, resulting in leakage. (4), irrigation pressure fluctuations can cause seal failure ISG200- 315B mechanical seal, irrigation pressure must be higher than the number of the seal cavity pressure, enabled mounted in front of the pump and the solenoid valve delay switch ensures flushing residue before and after the pump start-stop rinse, such as quenching method using controlling the temperature, must maintain a pressure seal chamber. (5), if the cooling spacer is a layer of scale precipitation where the sale of mechanical seals, we can install a sealed chamber at the bottom of the graphite liner, the use of its thermal barrier direction to solve these problems. (6), leak ISG200-315IB pipeline pump heat exchanger fouling is often hampered by cooling the surface heat transfer, fluid flow inside the cooler on speeding, or heat exchanger installed backwards. ISG200-315I booster, Qingyuan mechanical seal, vertical pipeline pump is provided by Anguo Stone Yuan pump Ltd. Anguo Stone Yuan Pump Co. (www.shiyuanbeng.com) strong, credible, in Hebei Centrifugal pumps Baoding industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead you hand pumps and stone yuan into the brilliant, for a better future!