It is braided packing made of Aramid Fiber yarns impregnated with PTFE dispersion and treated with lubricant. This packing can bear higher-pressure applications than tother types of braided packing. Due to its steel-like strength, this yarn can be employed separately or as back-up rings with other types of packing. This packing has been developed to replace asbestos packing for pump systems. It covers all the service ranges which asbestos packing provides and even much better. It affords longer service life under severe conditions which conventional asbestos packing can not provide satisfaction, such as sand sultry, feed water pump of power stations, etc.
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