HU7 structure characteristics: HU7 type mechanical seal complies with DIN24960 and GB / T6556-94 standard, alternative 108U-type mechanical seal, unbalanced, conical spring structure 80FSB-30 mechanical seal, the spring rotation about the axis of rotation. Vice friction materials and auxiliary materials should be selected according to the actual conditions. Scope: Sealed Medium: sewage pumps, submersible pumps, chemical pumps, circulating pumps, water pump and heating system. Seal chamber pressure: ≤1Mpa sealed chamber temperature: -20 ℃ ~ 180 ℃ line speed: ≤15m / s HUU803 structure characteristics: HUU803 type mechanical seal complies with DIN24960 and GB / T6556-94 standard, non-balanced, multi-spring structure Two-Face, driving sleeve. Seal chamber pressure must be higher than the medium pressure 0.1-0.2Mpa. Vice friction materials and auxiliary materials should be selected according to the actual conditions. Scope: Sealed Medium: acid, alkali, salt, water, toxic and flammable vapor pressure medium sealed chamber: ≤1.6Mpa sealed chamber temperature: -50 ℃ ~ 150 ℃ line speed: ≤20m / s sealing ring is ring and stationary ring collectively (below), constitutes the most important element of mechanical seals. Sealing ring largely determines the mechanical seal performance and life 80FSB-50L mechanical seal, mechanical seal and therefore 80FSB-30L, it made a number of requirements. 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, can maintain sealing 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, try to avoid using the seal faces sprayed structure. 6. Sealing ring easier to manufacture, installation and maintenance to be convenient, the price is low. 80FSB-40L mechanical seals | Wuhai mechanical seal | fluorine plastic centrifugal pump 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!