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Braided Packing Construction 

Our braided packing is fabricated using several different braid constructions each designed to meet specific operating environment conditions.

 

Daemar DMR braided packing, mechanical packing, compression packing

Square Braided

Also known as square plaited braid. Yarns, rovings, ribbons, and other various materials, either alone or in combination, are processed on equipment where strands pass over and under strands running in the same direction. Resulting packing are usually supplied in square cross-section, but rectangular sizes can also be braided by this method. The packing is usually soft and can carry a large percentage of lubricant. Square braided packing are easy on equipment and are generally used for high-speed rotary service at relatively low pressure. The packing softness makes it usable on old or worn equipment.

Daemar DMR braided packing, mechanical packing, compression packing

Braid Over Braid

Also known as round braid or multiple braid. Round braiding machines braid tubular jackets using yarns, ravings, ribbons, and other forms of various materials, either alone or in combination. Size is obtained by braiding jackets one over the other (braid-over-braid). Finished packing can be supplied in round, square, or rectangular cross-section. Braid-over-braid packing are relatively dense and are recommended for high-pressure, slow-speed applications such as valve stems, expansion joints, groove gasketing, etc.

Daemar DMR braided packing, mechanical packing, compression packing

Braid Over Core

Finished product is produced by braiding one or more jackets of yarns, rovings, ribbons, or other forms of various materials over a core, which may be extruded, twisted, wrapped, or knitted. This construction allows for a wide range of densities and different cross-sectional shapes

 

Daemar DMR braided packing, mechanical packing, compression packing

Interbraid

Yarns, rovings, ribbons, and other forms of various materials, either alone or in combination, are processed on equipment where the strands crisscross from the surface diagonally through the body of the packing. Each strand is strongly locked by other strands to form a solid integral structure that cannot easily ravel or come apart in service. There are no jackets to wear through, and no plaits to come loose. lnterbraid packing has a more even distribution of yarn density throughout and has the potential for improved lubricant retention. The finished packing is relatively dense, but flexible. Interbraid packing are suitable for applications on both reciprocating and centrifugal pumps, agitators, valves, expansion joints, and in grooves. Interbraid construction is offered by manufacturers using their own brand name for the construction, such as “Cross-Locked”, “Inter-Lock”, “Interlocking”, “Lattice”, “Multi-Lok”. All offer versatile and adaptable packings that deliver outstanding performance in general service for most plants.

dmr-braided-construction-dieform-200px

Die Form

A pre-compressed ring form in which many compression packing materials can be supplied to provide controlled density and size.

 

Daemar at a Glance

Managing the sourcing & delivery of millions of Essential Components to the manufacturing & MRO marketplace.

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