New England Braiding Company
The New England Braiding Company line from Anchor Seals Inc.: PTFE Hydropacking, aramid, graphite, carbon, exfoliated graphite, metallic, and Vibradamp and Chemstop resilient core packings, all built on the INTERLOCK ANTI-KEYSTONE braid for pumps, agitators, valves, and pulp and paper equipment.
New England Braiding Company packings are built on the INTERLOCK ANTI-KEYSTONE braid, a construction that keeps the packing square under compression so it seats evenly, resists extrusion, and does not roll or keystone in the box. The line runs from FDA approved PTFE for food equipment to pure graphite filament for boiler feed pumps and 5000°F non-oxidizing service.
Anchor Seals Inc. stocks more than 30 NEB styles across eleven families. Use the jump links below to move between families, then send us the media, temperature, shaft or stem size, and box dimensions. We cross-reference existing styles and supply spools or pre-cut rings.
Thirty Plus Styles, One Braid
Why New England Braiding
INTERLOCK ANTI-KEYSTONE braid stays square under load, so rings seat evenly and resist extrusion.
PTFE Hydropacking styles for acids, bases, pulping liquors, and paper stock to 4200 fpm.
Vibradamp silicone and Chemstop AFLAS resilient cores absorb vibration and shaft run out.
Graphite filament and exfoliated graphite styles for boiler feed, steam, and continuous digesters.
FDA approved Style 110-P and food grade Style 110-PB for food processing equipment.
Every style available by the spool or as pre-cut rings, with cross-reference from any brand.
New England Braiding Company Packing Styles
Eleven packing families. Jump to a family below, then match the style to your service. Scroll the table on smaller screens.
PTFE Fiber Hydropacking
PTFE based packings for chemical, pulping liquor, paper stock, and food service. Not for molten alkali metals, free halides, or strong oxidizers such as aqua regia, red fuming nitric acid, or oleum.
| Style # | Description | Construction | Service | Temperature | pH | Shaft Speed | Pressure (psig) |
|---|---|---|---|---|---|---|---|
| 274 | Teflon based packing. | INTERLOCK ANTI-KEYSTONE II | Reciprocating and rotating pumps, agitators, blenders, mixers, bleach and brown stock washers, knife gates, and rising and rotating stem valves. Acids, bases, gases, oils, black, green, red, and white pulping liquors, paper stock, and other water based fluids (except strong oxidizers such as aqua regia, red fuming nitric acid, oleum, free halides, and molten alkali metals). | -400°F to +500°F | 1-13 | 4200 fpm |
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| 200 | Lubricated Teflon yarn. | INTERLOCK ANTI-KEYSTONE II | Bleach valves and towers. Hydropack may also be used in air, oils, solvents, gases, harsh chemicals, sulfate, sulfite, and NSSC pulping liquors, paper stocks at any stage, and other fluids where contamination may prove a problem. Should not be used to seal molten alkali or free halides. | -400°F to +500°F | 0-14 | 2000 fpm | 25,000 |
| 201 | Constructed from an expanded PTFE graphite composite as its primary yarn, with a pure PTFE extrusion resisting pair of corners arranged in a patented format. No break-in lubricant, virtually shrink free. | HYDRO-PACKING | Rotating and rising stem valves, agitators, blenders, reciprocating pumps, and rotating pumps. All chemicals except oxidizing fluids (such as aqua regia, red fuming nitric acid, oleum), molten alkali metals, and free halides. | -400°F to +500°F | 0-14 | 3000 fpm | 6000 |
| 98 | Teflon fiber packing. | INTERLOCK ANTI-KEYSTONE | Rotating valve stems, slow speed pump shafts or rods, and mixers. Designed for chemical solutions, steam, solvents, and cooking liquors (except molten alkali metals or free halides). | -400°F to +500°F | 0-14 | 700 fpm | 5000 |
| 98-OX | Teflon fiber packing for oxygen service. | INTERLOCK ANTI-KEYSTONE | Rotating valve stems, slow speed pump shafts or rods, and mixers. Designed for chemical solutions, steam, solvents, and cooking liquors (except molten alkali metals or free halides). | -400°F to +500°F | 0-14 | 700 fpm | 5000 |
| 100 | Fluoroplastic fiber packing. Thermally conductive, corrosion resistant reinforcing fibers, heat conductive compared to normal white PTFE yarn, impregnated with Teflon suspensoid and treated with an inert lubricant. | INTERLOCK ANTI-KEYSTONE | High speed non-contaminating sealing for harsh fluids in pumps, agitators, mixers, bleach washers, and rising or rotating stem valves. Sulfate, sulfite, and NSSC pulping liquors, air and gases, oils and solvents, harsh chemicals, and paper pulp stocks at any stage. | -400°F to +500°F | 0-14 | 2000 fpm | 2500 |
| 102 | Natural self-squaring, Teflon fiber based. Lower gland pressure and even shaft loading lead to extended sleeve wear. | INTERLOCK ANTI-KEYSTONE II | All equipment with rotary or reciprocating shafts. Unbleached paper stocks, water, steam, oils, pulping liquors, acids and bases, and other chemical solutions except molten alkali metals and strong oxidizers such as aqua regia, red fuming nitric acid, oleum, and free halides. | -400°F to +500°F | 0-14 | 4200 fpm | 2000 |
| 110-P | Natural self-squaring Teflon filament yarn, FDA approved. Lower gland pressure and even shaft loading lead to extended sleeve wear. | INTERLOCK ANTI-KEYSTONE | Intended for food processing equipment. | -400°F to +450°F | 0-14 | 1200 fpm | 1500 |
General Service Pulp and Paper Mill Packing
The all-round pulp and paper mill packing for liquors, caustics, and stock.
| Style # | Description | Construction | Service | Temperature | pH | Shaft Speed | Pressure (psig) |
|---|---|---|---|---|---|---|---|
| 104 | Kevlar and Teflon graphite composite yarn. | INTERLOCK ANTI-KEYSTONE | Pumps, agitators, double and single shaft steam and chemical mixers, thick stock pumps, pulpers, feeders (rotary valve or screw type), trunnions, drop leg glands, repulpers, refiners, boiler feed pumps, and more. White, black, and green liquors, caustics, sulfate red or black liquor condensate, oils, pulp and paper stocks. | -40°F to +500°F | 3-12 | 3700 fpm | 2250 |
Aramid Fiber Packing
Aramid and NOMEX yarns for abrasion resistance on rotary and reciprocating equipment.
| Style # | Description | Construction | Service | Temperature | pH | Shaft Speed | Pressure (psig) |
|---|---|---|---|---|---|---|---|
| 152 | PTFE impregnated aramid fiber yarn. | INTERLOCK ANTI-KEYSTONE | All equipment with rotary or reciprocating shafts. Unbleached paper stocks, water, steam, oils, pulping liquors, acids and bases, and other chemical solutions except molten alkali metals and strong oxidizers such as aqua regia and red fuming nitric acid. | -40°F to +500°F | 3-12 | 1800 fpm | 2000 |
| 106 | Manufactured from texturized continuous filament NOMEX fiber, impregnated with TEFLON fluoroplastic dispersion and treated with an inert break-in lubricant. Possesses superior fiber elongation to reduce equipment wear. | INTERLOCK ANTI-KEYSTONE II | Equipment with rotating shafts and reciprocating rods, rams, and presses, as well as valves with either rotating or rising stems. Water based solutions, oils, solvents, refined products, and crudes in the petroleum industry; chemicals (within pH range), pulp and paper stocks, caustics, and pulping and bleach liquors in the pulp and paper industry. | -40°F to +500°F | 1-13 | 2250 fpm | 2000 |
Graphite PTFE Finish Packing
High speed graphite ribbon yarn lubricated with PTFE and graphite.
| Style # | Description | Construction | Service | Temperature | pH | Shaft Speed | Pressure (psig) |
|---|---|---|---|---|---|---|---|
| 702 | Continuous filament graphite ribbon form yarn, lubricated with PTFE and graphite. | INTERLOCK ANTI-KEYSTONE II | Rotating equipment such as agitators, mixers, and pumps, and reciprocating equipment where clearances are not excessive. May be used as a valve stem packing. Acids, bases, oils, solvents, and water based solutions that are not strong oxidizers (such as aqua regia, petroleum, or red fuming nitric acid) or solutions containing free halides. Should NOT be used in contact with molten alkali metals. | -400°F to +800°F | 0-14 | 5100 fpm | 3000 |
Graphite Ribbon Tape
Flexible graphite tape for valves, rotary shafts, and soot blowers.
| Style # | Description | Construction | Service | Temperature | pH | Shaft Speed | Pressure (psig) |
|---|---|---|---|---|---|---|---|
| GRT | Flexible graphite ribbon tapes made from compressed exfoliated graphite. | RIBBON TAPE | Rotary shafts and both rising and rotating stems on valves and in soot blowers in power boilers. Boiler feed water, steam, oils, and solvents. Recommended that Style GRT be used in conjunction with bull rings made from Style 707-L. |
|
0-14 | N/A | 5000 |
Carbon Fiber Packing
PTFE impregnated carbon fiber for pumps, control valves, and continuous digesters.
| Style # | Description | Construction | Service | Temperature | pH | Shaft Speed | Pressure (psig) |
|---|---|---|---|---|---|---|---|
| 706 | Carbon fiber impregnated with PTFE suspensoid. | INTERLOCK ANTI-KEYSTONE | Rotating pumps, mixers, and agitators, regulating or control valves with rotating or rising stems, and continuous digesting equipment in the pulp and paper industry. Boiler feed water, pulping liquors, chip slurries, petroleum oils, water, air, ammonia, alkalis (organic and inorganic), brine solutions, and fire resistant hydraulic fluids. Should NOT be used in strong oxidizing fluids such as aqua regia and oleum, or in nitric acid, free halides, or halide acids. | -400°F to +450°F | 1-13 | 3000 fpm | 3000 |
Graphite Filament Packing
Self-lubricating graphite filament with rubber O-ring cords for boiler feed pumps, valves, and digesters.
| Style # | Description | Construction | Service | Temperature | pH | Shaft Speed | Pressure (psig) |
|---|---|---|---|---|---|---|---|
| 707-L | Self-lubricating graphite filament yarn. | INTERLOCK ANTI-KEYSTONE with Rubber O-Ring Cords | Boiler feed pumps, valves, agitators, and mixers other than in nuclear service. Boiler feed water, chemicals, refinery products, and pulping liquors. |
|
1-14 | N/A | 3000 |
| 707-T | Teflon impregnated self-lubricating graphite filament yarn. | INTERLOCK ANTI-KEYSTONE with Rubber O-Ring Cords | High and low pressure feeders, outlet devices, and top separators on Kamyr and Kvaerner continuous digester systems, chemical mixers, and control valves. Acids, bases, gases, oils, steam, solvents, water, and in the pulp and paper industry, black, green, red, and white pulping liquors. | -400°F to +500°F | 1-14 | 2000 fpm | 3000 |
High Temperature Valve Stem Packing
Nuclear certifiable graphite and carbon yarns for steam valves.
| Style # | Description | Construction | Service | Temperature | pH | Shaft Speed | Pressure (psig) |
|---|---|---|---|---|---|---|---|
| 727-L | Combination of two nuclear certifiable yarns: pure continuous filament graphite with reinforced carbon fiber yarn. | INTERLOCK ANTI-KEYSTONE | Rising and rotary stem steam valves and other devices where high pressure must be contained and where shaft finish is good. Treated and untreated steam, condensate, and boiler feed water. |
|
3-13 | N/A | 3000 |
Exfoliated Graphite Packing
Graphite filament yarn with extrusion resistant corners for high speed and high pressure service.
| Style # | Description | Construction | Service | Temperature | pH | Shaft Speed | Pressure (psig) |
|---|---|---|---|---|---|---|---|
| 7800 | Graphite filament yarn with extrusion resistant corners. | INTERLOCK ANTI-KEYSTONE | High and low pressure feeders, outlet devices, and top separators on Kamyr and Kvaerner continuous digester systems, chemical mixers, and control valves. Acids, bases, gases, oils, steam, solvents, water, and in the pulp and paper industry, black, green, red, and white pulping liquors. |
|
0-14 | 4200 fpm | 5000 |
Metallic and Glass Packing
Aluminum foil packing for high temperature digester service and fiberglass gasketing for ovens.
| Style # | Description | Construction | Service | Temperature | pH | Shaft Speed | Pressure (psig) |
|---|---|---|---|---|---|---|---|
| 1511 | Twisted from lubricated and graphited aluminum foil and die-molded into square cross sections. | TWISTED | High and low pressure feeders, outlet devices, and top separators on Kamyr and Kvaerner continuous digester systems, chemical mixers, and control valves. Acids, bases, gases, oils, steam, solvents, water, and in the pulp and paper industry, black, green, red, and white pulping liquors. | -40°F to +1000°F | 6-10 | 800 fpm | 3000 |
| 251 | Textured fiberglass braided without any added fillers or lubricant. Does not swell or shrink. Chemical resistant and incombustible. | SQUARE BRAID | Oven and stove door gasket and groove gasket in other equipment. | 1000°F | 2-11 | N/A | N/A |
Vibradamp and Chemstop Resilient Core Packing
Standard NEB yarns braided over silicone, Buna-N, or AFLAS elastomer cores to absorb vibration and shaft run out.
| Style # | Description | Construction | Service | Temperature | pH | Shaft Speed | Pressure (psig) |
|---|---|---|---|---|---|---|---|
| 104-SC | Vibradamp red silicone rubber core; a resilient core version of the Bumblebee Packing. | INTERLOCK ANTI-KEYSTONE with Rubber O-Ring Cords | Appropriate for mild services. | -40°F to +400°F | 5-10 | 2500 fpm | 2500 |
| 106-SC | Non-contaminating white NOMEX packing yarn braided about a Vibradamp red silicone rubber core. | INTERLOCK ANTI-KEYSTONE with Rubber O-Ring Cords | Appropriate for mild services. | -40°F to +400°F | 5-10 | 2200 fpm | 2000 |
| 110-PB | Vibradamp packing with white food grade Buna-N cores. | INTERLOCK ANTI-KEYSTONE with Rubber O-Ring Cords | Appropriate where FDA compliance is required and vibration or run out is an issue. | -65°F to +225°F | 3-12 | 1500 fpm | 1500 |
| 200-AF | Chemstop packing braided from white and bleachable pink yarns, utilizing black AFLAS elastomer cores. | INTERLOCK ANTI-KEYSTONE with Rubber O-Ring Cords | Appropriate where contamination may be an issue in corrosive products. | -65°F to +400°F | 0-14 | 1500 fpm | 2500 |
| 274-AF | Chemstop packing with AFLAS cords. | INTERLOCK ANTI-KEYSTONE with Rubber O-Ring Cords | General services where the full range of chemical resistance of pH 1 to 13 is required. | -65°F to +400°F | 1-13 | 4200 fpm | 6000 |
| 274-SC | Vibradamp packing with silicone cores. | INTERLOCK ANTI-KEYSTONE with Rubber O-Ring Cords | General services where there are issues with vibration and shaft stability. | -40°F to +400°F | 5-10 | 4200 fpm | 6000 |
| 702-AF | Continuous filament graphite and PTFE lubricated yarns with resilient AFLAS core. | INTERLOCK ANTI-KEYSTONE with Rubber O-Ring Cords | Appropriate for harsh chemicals, high speeds, and where equipment instability is an issue. | -65°F to +400°F | 0-14 | 5100 fpm | 5000 |
| 7800-SC | Graphite yarn with extrusion resistant corners and resilient silicone core. | INTERLOCK ANTI-KEYSTONE with Rubber O-Ring Cords | Agitators, blenders, and pumps operated without seal water. | -40°F to +400°F | 5-10 | 5100 fpm | 5000 |
Ratings are maximums for each style. Confirm limits for your specific media, temperature, and equipment with an Anchor Seals Inc. representative.
Frequently Asked Questions
All Mechanical PackingsWhat is INTERLOCK ANTI-KEYSTONE braid?
Ordinary braided packing tends to keystone, deforming into a wedge shape as the gland is tightened, which leaves the ring sealing on its corners. The INTERLOCK ANTI-KEYSTONE construction interbraids the yarns so the ring stays square under compression, seats evenly against the shaft and bore, and resists extrusion. Every NEB braided style uses it.
What is the difference between Vibradamp and Chemstop packing?
Both are resilient core packings: a standard NEB yarn braided over an elastomer core so the ring springs back against a vibrating or run out shaft. Vibradamp uses red silicone (or food grade Buna-N in Style 110-PB) for mild service. Chemstop uses black AFLAS cores for corrosive service where contamination is a concern.
Which NEB style should I use for a paper mill stock pump?
Style 104 Bumblebee Packing is the general service pulp and paper packing for liquors, caustics, and stock. For high speed or non-contaminating service move to the PTFE Hydropacking styles 274 or 102, and for vibrating or unstable shafts use the resilient core 104-SC or 274-SC.
Do you cross-reference other packing brands to New England Braiding?
Yes. Send us the style number you use today along with the media, temperature, and shaft or stem size, and we will identify the equivalent NEB style and quote it by the spool or as pre-cut rings.
