JM NASB SHEET

NA-60
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Green
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Nitrile binder
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Excellent sealability
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Low creep
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Great performance in steam and a broad range of chemicals
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Reliable for process piping or machinery 

978-C Black Gold  
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Black gold
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Nitrile Binder
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Handles chemicals well
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Great sealing properties
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Performs well in high temperature, high pressure, saturated steam service.
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Can be used widely in most applications on all equipment
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A natural in the petroleum industry, and successful in pulp and paper service 

1078 Whitetrile
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Off-white version of 978-C
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Good for intricate machinery gaskets
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Strong enough for narrow flange widths  

940 & 970 Red Devil  
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Distinctive red
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High tensile, compressed SBR and aramid fiber
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Suitable for use as extremely large gaskets and pads, small, thin, intricate gaskets, or dielectric materials
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970 is double-pressed to enhance its physical properties

960 Omni-Night  
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Black
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SBR/aramid fiber
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Can be used in a wide range of chemicals

961 Omni-Light  
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Off-white version of 960

976 White Night  
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Off-white
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CR/aramid fiber
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Designed for service in freon-type refrigerants and high aniline-point oils
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Recommended for applications in ammonia gas, fuels, mild acids, mild alkalis, water, and silicate esters

986 Yellow Jacket
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Yellow
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EPDM Binder and high-temperature fiber
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Can be used in steam, alkalis, brake fluids, phosphate esters, dilute acids, and animal and vegetable oils 

Tuff-TFE 2000
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Gold
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PTFE-based material
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Handles tough chemical problems along w/steam
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Superior sealability
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A natural choice when fugitive emissions are a concern
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All types of machinery and process piping and equipment
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Meets FDA requirements
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As low as minus 350 F

Gasket Compounds
Do not apply gasket compounds, adhesives, or anti-stick lubricants to the gasket surface.  These compounds may reduce gasket stress leading to excessive creep relaxation and possible gasket failure. 

Selecting a Gasket Material  
There are many factors to consider when selecting a gasket material.  Please provide temperature/ pressure range and chemicals involved in the application.

Low Temperature Applications
The gasket must be dry and without oil or adhesive when installed and should be stored in a dry atmosphere since the fibers absorb moisture from the air.

The gasket should not be subjected to severe thermal expansions at the joint assembly.

The required flange loading must be applied at ambient temperature and must not fall below the required minimum value over the whole range of service temperature.