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          NFS—II聚四氟乙烯纖維填料(盤根)    
          材質結構及特點:
                   以聚四氟乙烯為主要材料,浸漬聚四氟乙烯乳液,經過編織制成的繩狀產品。
                   這種填料具有優良的耐腐蝕性、耐磨性和較高的機械強度,并且有自潤滑性好、磨擦系數小、扭矩小的特點,但其熱傳導性差,熱膨脹系數大,因而用到線速度高的部位,須采取混合裝配或強制冷卻、潤滑等措施,避免造成燒壞填料和增大磨損。
          流體介質:
                  各種腐蝕性化學藥品流體、濃硝酸、鹽酸、硫酸、氫氟酸、強堿等。廣泛用于石油、化工、化肥、化纖、食品等工業設備裝置所用的法蘭、閥門、泵的密封。
          NFS-II POLYTETRAFLUOROETHYLENE-WOVEN SEAL PACKING
          Composition and Characteristics:
               Braided rope-shaped product with teflon-fibre as the main material. This gasketing material is highly recommended for its satisfactory resietance against corrosion and abrade-wear, and the quite high mechanic strength. It has further the merits of good performance of self-lubrication, small friction coefficient and small moment of torque. However, it suffers the defects of unsatisfactory thermal conductivity and a large thermal-expansion coefficient. Therefore, when it is used for the purpose of thght-sealimt at places with high linear velocity, measures such as mixed-assembling, or forced cooling and lubrication, should be taken.
          Fluid Medium:
               Various corrosive fouids of chemicals, thick nitric acid, chlorhydric acid, sulphuric acid, fluorcyanic acid, strong base, etc. Widely used for tightsealing on the flanges, valve sand pumps in the equipment and apparatus employed by such industrialbranches as petro-industry, chemical industry, chemical-fertilizer industry, synthetic fibre, and food-processing industry.
           
          適應條件
          Applicable conditions

          離心動密封
          Kreiselpumpen
          往復動密封
          Kolbenpumpen
          閥門密封
          Armaturen
          壓力
          Pressure
          25MPA 25MPA 40MPA
          溫度
          Temperature
          -200℃~+280℃

          PH值
          PH-Value

          1~14

          線速度m/s
          LinearVelocity M/S

          10 2.5 2
          截面尺寸
          mmsq
          3 4 5 6 8 10 11 12 14 16 18 20 22 25
          m/kgabt. 43 30 21 13 8.6 6.1 4.5 3.5 3.0 2.2 2.0 1.6 1.2 0.9
          截面尺寸
          inch sq
          1/8" 5/32" 3/16" 1/4" 5/16" 3/8" 7/16" 1/2" 9/16" 5/8" 11/16" 3/4" 7/8" 1"

          ft/ib abt.

          64 45 32 20 13 9.2 6.7 5.2 4.5 3.3 3.0 2.4 1.8 1.3
           
                 

           


          營口高新密封材料有限公司 版權所有 @2006
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