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Cross Section:

Cross Sectional Size:

Construction:

Thickness:

Length:

Width:

Loose Packing?

Preformed Ring?

Adhesive Backing?

Material Classification:

Lubrication:

Specialty Application:

Shaft Speed:

Alternate Shaft or Rubbing Speed:

Operating Pressure:

pH Range:

Allow up to: overrange/margin
Use the overrange/margin to restrict your search to items whose full-scale range is close to your requirements.
(Overrange/margin requires both 'From' and 'To' values to work.)

Operating Temperature:

Allow up to: overrange/margin
Use the overrange/margin to restrict your search to items whose full-scale range is close to your requirements.
(Overrange/margin requires both 'From' and 'To' values to work.)

Help with Compression Packing Seals specifications:

Braided Packing Construction
   Cross Section:      Braided or plaited sections can be formed square or round. A lubricant impregnated section can be formed into a square section by passing it through a roller-die.
   Your choices are...         
   Square Cross Section       Products have a square-shaped cross section. 
   Round Cross Section       Products have a round-shaped cross section. 
   Search Logic:      All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches.
   Cross Sectional Size       Most packings are made in a standard range of section sizes from 6 mm (1/4 inch) square upwards. 
   Search Logic:      User may specify either, both, or neither of the "At Least" and "No More Than" values. Products returned as matches will meet all specified criteria.
   Construction:       
   Your choices are...         
   Braid-Over-Braid       Braid-over-braid is also called jacket-over-jacket. This design is fabricated by braiding one or more covers over a center core of braided, twisted or homogeneous materials. Products can be braided round, then calendared square. The weave is soft and dense because of the individual jacket-over-jacket construction, and can carry high amount of lubricant. 
   Braid-Over-Core       Braid-over-core designs are produced by round-braiding one or more jackets of yarn, rovings, ribbons or other forms of materials over a core that may be extruded, twisted, wrapped or knitted. 
   Laminated       With laminated products, either asbestos and rubber or duck and rubber are laminated into slab form and then fabricated into spirals, coils, or rings. 
   Multi-Braid or Lattice       With multi-braid or lattice designs, strands are diagonally-braided for greater strength and longer life. Each strand passes diagonally through the body of the packing at an angle of approximately 45°. This design is resistant to permeation leakage and would not be damaged entirely even if the surface becomes worn. 
   Plaited       Plaited packings are constructed from interwoven yarns with pockets formed between each plait to retain lubricant. 
   Square-Braid       Products with a square cross-section structure are soft and absorbent and can carry a high amount of lubricant. This design is especially suited for high-speed rotary service, particularly at low pressure. Square braid is also called "plaited" by some manufacturers. 
   Twisted       With twisted products, yarns or metallic strands are twisted around each other to obtain the desired size. One packing size can be used for various size stuffing boxes. This is primarily a general utility or emergency type of packing where packing space is small. 
   Other       Other unlisted, specialty or proprietary braided construction. 
   Search Logic:      All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches.
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Flexible Graphite Tape
   Thickness         
   Search Logic:      User may specify either, both, or neither of the "At Least" and "No More Than" values. Products returned as matches will meet all specified criteria.
   Length         
   Search Logic:      User may specify either, both, or neither of the "At Least" and "No More Than" values. Products returned as matches will meet all specified criteria.
   Width         
   Search Logic:      User may specify either, both, or neither of the "At Least" and "No More Than" values. Products returned as matches will meet all specified criteria.
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Features
   Loose Packing       Loose packings are generally used for sealing pump glands or valves and are easy to fit. They only have to be tapped lightly to pack the gland. Typically, end rings of solid section or split rings of solid packing are used to prevent extrusion of the loose packing. 
   Search Logic:      "Required" and "Must Not Have" criteria limit returned matches as specified. Products with optional attributes will be returned for either choice.
   Preformed Ring       Many compression packing materials can be supplied in a pre-compressed ring form. Flexible graphite tape can be supplied as preformed rings. 
   Search Logic:      "Required" and "Must Not Have" criteria limit returned matches as specified. Products with optional attributes will be returned for either choice.
   Adhesive Backing       Flexible graphite packings can be supplied with adhesive backing. 
   Search Logic:      "Required" and "Must Not Have" criteria limit returned matches as specified. Products with optional attributes will be returned for either choice.
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Material and Lubrication
   Material Classification:      Yarn packings are usually combined with a lubricant. The amount of lubricant required varies with the type of service. A packing used for high-speed rotary motion would normally be of a softer material type to maintain flexibility over time and contain a large amount of lubricant, while a packing used for static applications would not normally contain lubricant.
   Your choices are...         
   Acrylic       Synthetic yarns are used to upgrade performance characteristics. Acrylic is good for use in low temperature general service with slightly acidic fluids. 
   Alumina Silicate       Aluminum silicate exhibits good performance in extremely high temperature service, but is limited to static seals or slow movements. 
   Aluminum       Metallic packings are fabricated from specially treated, lubricated metal foil ribbons. They are available in the form of spiral-wrap packings, folded / twisted packings, or wrapped around a resilient core. 
   Aramid       Fibers of aromatic polyamides, aramids, have excellent resistance to high temperatures and exceptional tensile strength. 
   Asbestos       Asbestos yarns are the traditional choice for higher temperature services. 
   Carbon       Carbon yarns are pitch-based and have longer life expectancies than other products. They also have lower friction coefficients for less shaft wear. 
   Ceramic       Ceramic fibers have better temperature and chemical resistance properties than asbestos, but are not easily formed into braided or plaited packings. 
   Copper       Copper packings are fabricated from specially treated, lubricated metal foil ribbons. They are available in the form of spiral-wrap packings, folded / twisted packings, or wrapped around a resilient core. 
   Cotton       Cotton and flax are the most widely used fibers. 
   FDA Approved PTFE       FDA approved PTFE filament is approved by the U.S. Food and Drug Administration (FDA) for use in food processing applications. 
   Fiberglass       Glass fibers have excellent thermal properties, dimensional stability, and tensile strength. They will not burn and dissipate heat faster than organic fibers. 
   Flax       Flax is provided as long-fiber roving yarns that are braided and impregnated with lubricant. 
   GFO®       GFO® is a registered trademark of WL Gore. 
   Graphite       Products are braided from high-purity graphite filaments that have excellent chemical resistance, are thermally conductive, and can be used in extreme temperatures and pressures. 
   Graphite / Asbestos       Newer graphitized asbestos packings with superior lubrication provide cooler running and lower friction with excellent high temperature performance. 
   Hemp       Hemp is another widely used fiber, but to a lesser extent than cotton or flax. 
   Inconel® Wire Reinforced       Inconel® is a registered trademark of Inco Alloys International, Inc. 
   KYNOL®       KYNOL® is a registered trademark of American Kynol, Inc. 
   Lead       Lead packings are fabricated from specially treated, lubricated metal foil ribbons. They are available in the form of spiral-wrap packings, folded / twisted packings or wrapped around a resilient core. 
   Leather       Leather is a traditional packing material used in low-and-medium pressure reciprocating-motion applications. 
   PBI®       PBI® is registered trademark of Celanese Corporation. PBI is an acronym for Polybenzimidazole, a high-performance organic fiber. 
   Polytetrafluoroethylene (PTFE)       PTFE is an insoluble compound that exhibits a high degree of chemical resistance and a low coefficient of friction. It is sometimes marketed in proprietary classes of materials such as Teflon®, a registered trademark of Dupont Dow Elastomers. 
   PTFE / Aramid       PTFE / armaid is a heavy-duty packing for extreme service conditions. 
   PTFE / Asbestos       PTFE / asbestos yarn. 
   PTFE / Graphite       PTFE / graphite yarn. 
   PTFE / Silk       PTFE / silk yarn. 
   Ramie       Ramie is another vegetable-based fiber yarn. 
   Synthetic       Types of spun synthetic packing can be used as a replacement for asbestos packing. 
   Other       Other unlisted, specialty or proprietary materials. 
   Search Logic:      All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches.
   Lubrication:      Yarn packings are usually combined with a lubricant. The amount of lubricant required varies with the type of service. A packing used for high-speed rotary motion would normally be of a softer material type to maintain flexibility over time and contain a large amount of lubricant, while a packing used for static applications would not normally contain lubricant.
   Your choices are...         
   Graphite       Graphite is a standard "dry" lubricant that is particularly suitable for steam, water, and salt water services. It is often used where the packing would otherwise have to run dry. 
   Inert Lubricant       Inert lubricants are "wet" lubricants suitable for use with edible products or drinking water. 
   Marine Wax       Marine wax is a "wet" lubricant. 
   Mica       Mica is a standard "dry" lubricant that is sometimes used in place of graphite. 
   Mineral Oil       Mineral oil is a "wet" lubricant. 
   Molybdenum Disulfide       Molybdenum disulfide is a standard "dry" lubricant. 
   Paraffin       Paraffin is a "wet" lubricant. 
   Petrolatum       Petrolatum is a "wet" lubricant. 
   Petroleum Oils       Petroleum oils are "wet" lubricants. 
   Polytetrafluoroethylene (PTFE)       Polytetrafluoroethylene (PTFE) is a standard "dry" lubricant. PTFE is an insoluble compound that exhibits a high degree of chemical resistance and a low coefficient of friction. It is sometimes marketed in proprietary classes of materials such as Teflon®, a registered trademark of DuPont. 
   Silicone       Silicone is a "wet" lubricant used with asbestos packings for high-temperature service. This lubricant is not regarded as suitable for use with edible products or drinking water. 
   Tungsten Disulfide       Tungsten disulfide is a standard "dry" lubricant. 
   Zinc       Zinc is a standard "dry" lubricant. 
   Other       Other unlisted, specialty or proprietary lubrication. 
   Search Logic:      All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches.
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Specialty Application
   Specialty Application       
   Your choices are...         
   Pump / Rotating Equipment Packing       Packing seals are designed for pump or rotary equipment applications. 
   Valve Packing       Packing seals are designed for valve sealing applications. 
   Other Specialty Application       Packing seals are designed for other specialty applications such as soot blowers, food processing, chemical processing, and nuclear applications. 
   Search Logic:      All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches.
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Service Limits
   Shaft Speed       For pumps or rotating machinery applications with slow or infrequent shaft motion, compression packings are required to seal without leaking. Higher speed shaft applications require some fluid leakage for heat dissipation and lubrication, but must be controlled. 
   Search Logic:      User may specify either, both, or neither of the "At Least" and "No More Than" values. Products returned as matches will meet all specified criteria.
   Alternate Shaft or Rubbing Speed       Alternative shaft or rubbing speed is expressed as linear distance per time. 
   Search Logic:      User may specify either, both, or neither of the "At Least" and "No More Than" values. Products returned as matches will meet all specified criteria.
   Operating Pressure       To keep the packing "dry", the radial pressure on the inner ring must be at least equal to the internal pressure. Some leakage past the rings may be desirable. 
   Search Logic:      User may specify either, both, or neither of the "At Least" and "No More Than" values. Products returned as matches will meet all specified criteria.
   pH Range       The pH range of the fluid to be sealed. 
   Search Logic:      User may specify either, both, or neither of the limits in a "From - To" range; when both are specified, matching products will cover entire range. Products returned as matches will meet all specified criteria.
   Operating Temperature       This is the full required range of ambient operating temperature. 
   Search Logic:      User may specify either, both, or neither of the limits in a "From - To" range; when both are specified, matching products will cover entire range. Products returned as matches will meet all specified criteria.
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