(2), overheating due to the sealing surface will produce heat IRG65-200I mechanical seals, rubber ring so the temperature should be below the design specifications. Fluorine rubber and polytetrafluoroethylene use temperature of 216 ℃, NBR use temperature of 162 ℃, although they can withstand higher temperatures, but the heat generated by high sealing surface, so there continues vulcanized rubber ring The danger, ultimately loses its elasticity and leak. (Considering the cold crisp cold zone) between the sealing surface but also because of the heat caused by the crystallization medium, such as a knot of carbon, causing the sliding member is stuck and the sealing surface is condensed. And some of the polymer due to overheating and coking, lose some fluid lubrication due to overheating or even a flash fire. Superheated medium except for status change, it will aggravate the corrosion rate. Deformation caused by metal parts, alloy surface cracking, as well as some of the coating cracks, the design should be used balanced mechanical seals to reduce the specific pressure to prevent overheating. (3), the ultra-poor correct assembly tolerances, for the installation of the mechanical seal is necessary, the shaft (sleeve) must have a suitable surface roughness and the correct size, but manufacturers rarely provide tolerance data, installation terms are very critical. (Rely on experience and common sense) mechanical seal dimensional accuracy and geometric tolerances must comply with the requirements of the drawings of mechanical seals, seal tolerance will lead to premature failure. 2. Failure Analysis seal sealing surface itself would provide evidence of seal failure, such as vibration, there will be signs of wear and tear on the transmission parts, such as traces of obvious, it is generally caused by improper assembly. Sealing ring is the ring and stationary ring collectively (below), is the most important elements of mechanical seals. Sealing ring largely determines the mechanical seal performance and life, so it made a number of demands. 1. Have sufficient strength and rigidity. Under the operating conditions (such as pressure, temperature and sliding speed, etc.) are not damaged, deformed should be small IRG65-250IA mechanical seals, sealing can maintain work conditions fluctuate. 2. Seal faces should have sufficient hardness and corrosion resistance, in order to ensure satisfactory service life under the operating conditions. 3. Seal ring should have good thermal shock resistance. To this end, require materials with a higher thermal conductivity and smaller linear expansion coefficient, and will not crack when subjected to thermal shock. 4. Seal ring should match the smaller coefficient of friction and good self-lubricating, sealing ring material and sealing fluid should have a good wettability. Work in the event of a short period of dry friction, does not damage the seal faces. 5. Seal ring should be simple, symmetrical and priorities with the overall structure. May also be combined (eg cassette type) sealing ring IRG65-250 mechanical seal, avoid spraying end face seal structure. 6. Sealing ring easier to manufacture, installation and maintenance to be convenient, the price is low. IRG65-200I mechanical seals, mechanical seals, pipe circulation pump is provided by Anguo Shi Yuan Pumps Limited. Anguo Shi Yuan Pump Co., Ltd. (www.shiyuanbeng.com) strong, credible, in Baoding centrifugal pumps and other 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!