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This Palmetto style 1392S Kynol, aramid, and acrylic compression packing seal impregnated with PTFE protects pumps and valves from fluid leaks in general service and static applications. The plaited packing seal is made from PalmettoÃ¢ÂÂs proprietary composite material (Quadrasyn) containing Kynol, aramid, and acrylic yarns. Kynol provides the packing with thermal and dimensional stability, and resistance to most chemicals and solvents. Aramid increases the tensile strength of the packing, improving its resistance to abrasion. The packing is impregnated with virgin polytetrafluoroethylene (PTFE) to fill any gaps in the braid for improved sealing and protection from harsh chemicals, including solvents, acids, bases, and strong oxidizers. PTFEÃ¢ÂÂs low coefficient of friction reduces shaft wear by minimizing drag and heat buildup between the packing and the shaft or stem. The packing is saturated with a high-temperature lubricant to help improve break-in time, reduce frictional heat, and keep the packing from spinning with the shaft or stem, helping to reduce the chance of scoring and wear. This seal will not discolor fluids moving through the pump.
This packing seal is compatible with fluids including oils, water, brines, steam, and many mild to moderately reactive chemicals. It has a maximum pressure limit of 2,500 pounds per square inch (psi), a pressure-velocity (PV) factor of 450,000, and a surface speed of 2,200 feet per minute (fpm). It operates at temperatures from -10 to 500 degrees F (-23 to 260 degrees C). Style 1392S is suitable for use in stock pumps, beaters, hydropulpers, stock chests, mixer and agitator shafts, and sewage pumps, among others.
|Pressure limit||2,500 psi (172 bar)|
|Surface speed||2,200 fpm (11.2 m/s)|
|Temperature range||-10 to 500 degrees F (-23 to 260 degrees C)|
Rope seals provide a pressure seal to help retain fluids and gases in a wide variety of commercial and industrial applications. They have a round, square, or rectangular cross section, and come in various braided designs including braid-over-braid, braid-over-core, laminated, twisted, or interwoven. Rope seals can be manufactured from a single material or a combination of materials that suit specific pressure, temperature, speed, and chemical applications. Some rope seals are impregnated with lubricant and have reinforced cores for improved performance in specific environments, such as extremely high temperatures. They can be used to create a static seal in fixed or slow-moving applications like expansion joints, doors, and valves, or a dynamic seal in equipment with reciprocating, rotating, or oscillating movement like centrifugal pumps, rotating stems, and blowers. Rope seals come in uncut lengths on spools or as precut molded rings. They are used in numerous industries including agriculture, oil and gas, automotive, aerospace, construction, and consumer goods.
Palmetto Inc. manufactures packing products for pumps and valves, such as compression packing seals, packing tools, gasket sheets, and fillers. The company, founded in 1872, is headquartered in Denton, MD.