pump shaft seals
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        Pump shaft Mechanical Seals

        We specialize in single spring mechanical pump shaft seals for rotary / centrifugal pump applications. It's easy to replace your pump seals if you know what they are. If you do not have a pump seal number such as XX-100, you can identify what kind of seal you have, by comparing your mechanical seal components to the drawings below.


        Head Types

        Type 1

        Type 2

        Type 21

        Type 21

        ASP-21   ASP-1   ASP-2  

        Pump Seal Dimensions

         

        The "working length" of the seal is critical to your seal application.  To identify  the working length, measure your mechanical seal end to end, this is your seals "total length".  From this you must subtract 50% of the   uncompressed spring length. This is your mechanical seals working length.

        Sizing Mechanical Pump Seals

         


        Seat Types

        cup mount seat

        o-ring mount seat

        L-Shape Seat

        clamp mount seat


        To make sure your pump seals stationary seat fits, it's a good idea to provide the inside dimension of the bore it will be fitting into.  The outside dimension of your seals stationary seat is helpful but more difficult to obtain an accurate measurement.  Most pump seal stationary seats have a rubber cup or o-ring that must be compressed when it is installed.


         


        To decipher a mechanical seals materials code,  use the following chart

                 
        Elastomers Seal Face Metal Parts Seal Seats Springs
        B. Buna A. Bronze A. Bronze A. Bronze E. Monel
        V. Viton ® C. Carbon D. Brass G. Cast Iron F. Stainless
        N. Neoprene H. Glass Filled PTFE E. Monel J. Ceramic  
            F. Stainless K. Niresist   
        AFLAS TM M. Molded Plastic   L. Silicon Carbide  
        Secondary Seals        
        PTFE     Z. Tungston Carbide  
        I. Non Asbestos Z. Tungten Carbide      
                 
                 

        A sample material code could be:      B C F L F
         
        "Inquiry Form"

         

         Provideing all your mechanical seal requirments

         


         Viton ® is a registered trade mark of DuPont Dow Elastomers L.L.C. All rights reserved.
         *Trademark of Asahi Glass Co. Ltd

        Last Updated on 3/21/13            
        By American Seal & Packing
        Email: seals@usseal.com