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. Since the drive shaft through between the inner and outer devices, so that the shaft there is a circumferential gap with the device secret ISW200-400IC machinery, equipment medium leaking out through the clearance, if the pressure is below atmospheric pressure within the apparatus, the leakage of air into the device , so there must be a 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. ISW250-300 known as seal mechanical seal mechanical seal, in the relevant national standards are defined as: "by the end face of at least one pair perpendicular to the rotation axis of the compensation mechanism in fluid pressure and elasticity (or magnetic) role and secondary seal prevent fluid leakage device with keeping the relative sliding posted merger constituted. using the screw rotating shaft (sets) on the transmission of mechanical seals mechanical seals, should be used with a concave side edge of the set screws firmly rotation member fastened to the shaft. according to the amount of spring compression rules, there should not be too large or too small scene, require error ± 2.00 mm, and may increase the cross section than the pressure ISW200-400I mechanical seal, to speed up the cross-sectional wear. too small form but not less than the pressure and a sealing effect, after the spring seat to be installed in the spring to move sensitive. To watch the spring rotation with a single spring, the spring should be shifted to the rotation axis of the opposite. 8, assembly contact surfaces must be cleaned before installation, dynamic and static ring surface can be coated with a layer of clean oil or turbine oil or clean water sealing surfaces must be kept clean, not allowed to use dirty cloth sealing surface. ISW200 -400IC machinery dense _ _ pipeline pump mechanical seal is provided by Anguo Shi Yuan Pump Co., Shi Yuan Anguo City Pump Co., Ltd. (www.shiyuanbeng.com) strong, credible, Baoding in centrifugal pumps and other industries accumulation a large number of loyal customers. The company better work attitude and constantly improve the innovative ideas will lead the rock element into the brilliant water pump and you work for a better future!