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四氟盘根 PTFE packing 型号 Type 聚四氟乙烯类盘根 types of PTFE packing TD-650 白四氟盘根 PTFE packing TD-650Y 含油白四氟盘根 PTFE packing with oil TD-650SC 白四氟盘根硅胶芯盘根 PTFE packing with rubber core TD-650YC 含油白四氟盘根硅胶芯盘根 PTFE packing with oil & rubber core TD-650白四氟乙烯盘根，又称洁净型耐腐蚀盘根。该盘根由聚四氟乙烯线制成的编织盘根。不浸渍任何聚四氟乙烯乳液和油脂类。聚四氟乙烯具有很多优良的特性，耐腐蚀，自润滑，不粘贴。但也存在传热差，热膨胀系数大，有冷流等缺点。 The packing is a braided packing made from PTFE dispersion and lubricant are not impregnated。PTFE has characteristics of excellent anticorrosion, good self-lubrication and non-sticking. However, it is also substance with low heat conductivity, cold flow and great thermal expansion coefficient. 适用于压力不高的阀门及转速较低的应用，但对介质的纯度及抗腐蚀性有较高要求的地方，如：食品行业、医药、造纸、化纤等。 Designed for valves and lower shaft speed applications under medial pressure in food processing, pharmaceuticals, paper mills, fibre plants where high purity and corrosion resistance is required. 服务范围 SERVICE LIMITS 项目 ITEM 旋转泵Rotating 往复泵Reciprocating 静密封 Static 工作压力Pressure Psi bar Kg/cm2 15 100 150 轴速Shaft speed M/s 4 2 密度Density g/cm3 1.3 温度Temperature °C －150~+260 PH值 PH range 0-14 常规尺寸 STOCK DIMENSIONS 截面尺寸Sizemm 4 5 6 8 10 12 14 15 16 18 19 20 约appr. m/kg 35 22 16 9.0 5.6 3.9 2.9 2.5 2.2 1.7 1.5 1.4 公斤/卷kg/coil 2 5
