General Service Packings

NEBCO™ Style 102 AKⅡ^® Blackjack^® Superpack^® packing is manufactured from 100% GORE^® GFO^® fibers, densely braided using New England Braiding Company’s ANTI-KEYSTONE^® Ⅱ packing technology. This style combines the highest temperature and surface speed capability with the broadest chemical resistance of any PTFE fiber-based packing we offer.

Expanded PTFE filaments encapsulate submicron sized graphite particles which provide a graphite running surface after start-up. An inert break-in lubricant reduces burnout in difficult start-up situations. The high heat transfer rates provided by graphite permit running temperatures approaching the physical limits of the PTFE matrix.

APPLICATIONS: High-speed pumps, valves, mixers, extruders, agitators, blenders, or any other equipment with rotating or reciprocating shafts.

SERVICES: Unbleached paper stocks, water, oils, pulping liquors, acids and bases, and other chemical solutions.

*Style 102 SC AKⅡ^® should not be used to seal molten alkali metals, solutions containing free halides, or strong oxidizers such as aqua regia, red fuming nitric acid & oleum.

NEBCO™ Style 102 SC AKⅡ^® Blackjack^® Vibradamp^® is the resilient core version of our Style 102. This packing is manufactured from 100% GORE^® GFO^® fibers, with strategically placed silicone cores. Expanded PTFE filaments encapsulate submicron sized graphite particles which provide a graphite running surface after start-up. An inert break-in lubricant reduces burnout in difficult start-up situations. The resilient elastomeric cores with our densely braided ANTI-KEYSTONE^® Ⅱ design can help reduce the leakage and gland adjustments where shafts on agitators, hydroturbines, and other equipment are out-of-round, vibrate or subject to impact.
GORE^® and GFO^® are registered trademarks of W.L. Gore & Associates.

• pH range: 3-11(except strong oxidizers).
• Surface speeds to: 4,200 FPM (21.3 m/s).
• Pressure to: 2,000 PSI (137 bar).
• Temperatures from: -40°F (-40°C) to 400°F (204°C).
• Does not harden.
• Easy to install, resists fraying when cut.
• Oriented virgin ePTFE highly infused with ultra-pure graphite powder, with an inert lubricant.

APPLICATIONS: High-speed pumps, valves, mixers, extruders, agitators, blenders, or any other equipment with rotating or reciprocating shafts.

SERVICES: Unbleached paper stocks, water, oils, pulping liquors, acids and bases, and other chemical solutions.

*Style 102 SC AKⅡ^® should not be used to seal molten alkali metals, solutions containing free halides, or strong oxidizers such as aqua regia, red fuming nitric acid & oleum.

NEBCO™ Style 104 AKⅡ^® Bumblebee^® Packing is manufactured from a PTFE/Graphite composite yarn and para-aramid packing yarn that is resistant to rolling and provides excellent anti-extrusion properties on all four corners of the packing.

The PTFE/Graphite composite yarn has properties which permit sealing with low gland loading. It provides a graphite running surface held in place by its PTFE matrix for low running friction. The combined result of these two yarns is a packing that can dependably seal the majority of equipment.

• pH range: 3-12 (except strong oxidizers).
• Surface speeds to: 3,700 FPM (18.7 m/s).
• Pressures to: 2,250 PSI (155 bar).
• Temperatures from: -400°F (-240°C) to 500°F (260°C).
• Abrasion resistant.
• Extrusion resistant.
• PTFE/graphite with para-aramid reinforced corners.

APPLICATIONS: Suitable for pumps, agitators, single and double shaft steam and chemical mixers, and, within the pulp & paper industry, thick stock pumps, pulpers, repulpers, feeders (both rotary and screw type), drop leg glands, and trunnions. Ideal for high speed liquor pumps.

SERVICES: Style 104 AKⅡ^® effectively seals against sulfate white, black and green liquors, caustics, sulphite red or black liquor condensate, oils, water-based solutions, solvents, refined products and crudes in the petroleum industry (within specifications), pulping liquors (red or black sulphite, black or green sulphate and bleaching) and pulp and paper stocks in the pulp and paper Industry.

*Style 104 AKⅡ^® should not be used to seal molten alkali metals, solutions containing free halides, or strong oxidizers such as aqua regia, red fuming nitric acid & oleum.

NEBCO™ Style 104 SC AKⅡ^® Bumblebee^® Vibradamp^® packing is the resilient core version of our Style 104. It is manufactured from a PTFE/Graphite composite yarn and para-aramid packing yarn that is resistant to rolling and provides excellent anti-extrusion properties on all four corners of the packing, with strategically placed silicone cores. The resilient elastomeric cores with our densely braided ANTI-KEYSTONE^® Ⅱ design can
help reduce the leakage and gland adjustments where shafts on pumps, agitators, and other equipment are
out-of-round, vibrate or are subject to impact.

• pH range: 3-11 (except strong oxidizers).
• Surface speeds to: 3,700 FPM (18.7 m/s).
• Pressures to: 2250 PSI (155 bar).
• Temperatures from: -40°F (-40°C) to 400°F (204°C).
• Abrasion resistant.
• Extrusion resistant.
• PTFE/graphite with para-aramid reinforced corners.

APPLICATIONS: Suitable for pumps, agitators, single and double shaft steam and chemical mixers, and, within the pulp & paper industry, thick stock pumps, pulpers, repulpers, feeders (both rotary and screw type), drop leg glands, and trunnions. Ideal for high speed liquor pumps.

SERVICES: Style 104 SC AKⅡ^® effectively seals against sulfate white, black and green liquors, caustics, sulphite red or black liquor condensate, oils, water-based solutions, solvents, refined products and crudes in the petroleum industry (within specifications), pulping liquors (red or black sulphite, black or green sulphate and bleaching) and pulp and paper stocks in the pulp and paper industry.

*Style 104 SC AKⅡ^® should not be used to seal molten alkali metals, solutions containing free halides, or strong oxidizers such as aqua regia, red fuming nitric acid & oleum.

NEBCO™ Style 106 AKⅡ^® is manufactured from texturized continuous filament meta-aramid fibers impregnated with PTFE dispersion and treated with an inert break-in lubricant. The PTFE dispersion reduces friction and provides interstitial bulk to help prevent wicking.

This style combines superior temperature, chemical and hydrolytic resistance in one non-staining, naturally white, packing material. It is the optimal choice for abrasive services, especially in the mining industry.

Traditionally, in centrifugal applications, abrasive material in the pumping medium tends to get embedded into the fibers, turning the packing into a grinding wheel. Meta-aramid fibers perform well and tends to be less harsh on the shafts (compared to other abrasive service fibers such as para-aramids) leading to potential increased equipment savings.

APPLICATIONS: Because of its high strength Style 106 AKⅡ^® is one of the best packings available for slurry pumps, hydropulpers, sludge pumps and dredge pumps. Also appropriate for rotating shafts and reciprocating rods, rams, and presses, as well as valves with either rotating or rising stems.

SERVICES: Style 106 AKⅡ^® may be used in water-based solutions, oils, solvents, refined products and crudes in the petroleum industry (within specifications), chemicals (within pH range), pulp and paper stocks, caustics, and pulping and bleach liquors in the pulp & paper industry. Especially suitable for the mining industry.

*Style 106 AKⅡ^® should not be used to seal molten alkali metals, solutions containing free halides, or strong oxidizers such as aqua regia, red fuming nitric acid & oleum.

NEBCO™ Style 106 SC AKⅡ^® Vibradamp^® is the resilient core version of our Style 106. It is manufactured from texturized continuous filament meta-aramid fibers impregnated with PTFE dispersion and treated with an inert break-in lubricant, with strategically placed silicone cores.

The resilient elastomeric cores with our densely braided ANTI-KEYSTONE^® Ⅱ design reduce the leakage and gland adjustments where shafts on pumps and other equipment are out-of-round, vibrate or are subject to impact.

• pH range: 3-11 (except strong oxidizers).
• Surface speeds to: 2,250 FPM (11.4 m/s).
• Pressure to: 2,000 PSI (137 bar).
• Temperatures from: -40° F (-40° C) to 400°F (204°C).
• Abrasion resistant.
• Extrusion resistant.
• Non-staining.
• Continuous filament meta-aramid.

APPLICATIONS: Because of its high strength Style 106 SC AKⅡ^® is one of the best packings available for slurry pumps, hydropulpers, sludge pumps and dredge pumps. Also appropriate for rotating shafts and reciprocating rods, rams, and presses, as well as valves with either rotating or rising stems.

SERVICES: Style 106 SC AKⅡ^® may be used in water-based solutions, oils, solvents, refined products and crudes in the petroleum industry (within specifications), chemicals (within pH range), pulp and paper stocks, caustics, and pulping and bleach liquors in the pulp & paper industry. Especially suitable for the mining industry.

*Style 106 SC AKⅡ^® should not be used to seal molten alkali metals, solutions containing free halides, or strong oxidizers such as aqua regia, red fuming nitric acid & oleum.

NEBCO™ Style 274 AKⅡ^® Hydropacking^® is an advanced general service packing applicable for use in most industries. It can be installed in various applications throughout your plant keeping inventory costs low.
This style is manufactured from expanded PTFE/graphite composite fibers as the primary sealing yarn with two diagonally braided extrusion resistant corners of meta-aramid yarn. This ensures the maximum amount of desired primary sealing yarn is used and reduces the secondary reinforcement yarn to obtain the best seal possible.
Due to the materials used to manufacture this style, it is non-abrasive, extremely flexible and conformable to the particular sealing needs of your equipment.

APPLICATIONS: Include reciprocating and rotating pumps, agitators, blenders, mixers, washers, wicket gate and rising/rotating stem valves. Especially effective in refiners, digesters, and hydropulpers within paper mills. Recommended for waste water, dredge and sewage applications as well as hydroelectric facilities.

SERVICES: Include general services such as acids, bases, oils, black, green, red and white pulping liquors and other water-based fluids.

*Style 274 AKⅡ^® Hydropacking^® should not be used to seal molten alkali metals, solutions containing free halides, or strong oxidizers such as aqua regia, red fuming nitric acid & oleum.

NEBCO™ Style 274 SC AKⅡ^® Vibradamp^® Hydropacking^® is manufactured from expanded ePTFE/graphite composite fibers as the primary sealing yarn with two diagonally braided extrusion resistant corners of meta-aramid yarn with strategically placed silicone cores throughout.
The resilient elastomeric cores and our ANTI-KEYSTONE^® Ⅱ design can help reduce the leakage and gland adjustments where shafts on agitators, hydroturbines, and other equipment are out-of-round, vibrate, or subject to impact.
This packing is non-abrasive, extremely flexible & conformable to the particular sealing needs of your equipment.

APPLICATIONS: Include reciprocating and rotating pumps, agitators, blenders, mixers, washers, wicket gate and rising/rotating stem valves. Especially effective in refiners, digesters, and hydropulpers within paper mills. Recommended for waste water, dredge and sewage applications as well as hydroelectric facilities. This style has proven to be successful in effectively sealing expansion joints and penstocks.

SERVICES: Include general services such as acids, bases, oils, black, green, red and white pulping liquors and other water-based fluids.

*Style 274 SC AKⅡ^® should not be used to seal molten alkali metals, solutions containing free halides, or strong oxidizers such as aqua regia, red fuming nitric acid & oleum.