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    705 DUCTILE IRON COUPLING

     705 DUCTILE IRON LOW PRESSURE FLEXIBLE COUPLING The Model 705 is designed for connection of grooved low pressure pipe systems. Sizes-Inches/DN & Rated working pressure:3/4&Prim

     

    705 DUCTILE IRON

    LOW PRESSURE FLEXIBLE

    COUPLING

    Couplings

     

    The Model 705 is designed for connection of grooved low pressure pipe systems.

     

    Sizes-Inches/DN & Rated working pressure:

    3/4&Prime;to 4&Prime;(DN20 to DN100), 600psi (42bar)

    5&rdquo;to 12&Prime;(DN125 to DN300), 300psi (21bar)

    For Sch40S cut groove only

     

    MODEL 705 MATERIAL SPECIFICATIONS

    Housings:

    Ductile Iron to ASTM A536

    Surface Finish:

    Antirust paint red or blue

    Hot dip zinc galvanized 

    Epoxy power      

    Dacromet

    TeflonPTFE       

    RilsanPA11

     

     

    Rubber Gaskets:

    The gasket seals is C-shaped, made of standard gasket EPDM(ethylene propylene diene monomer) for

    cold water, hot water, rare acid, oil-free air and multiple chemical product (-50~150). It is not suitable

    for medium like petroleum.

     

    Bolts & Nuts:

    Round-head, elliptoid -neck, carriage bolts, type carbon iron covered

    with zinc or dacromet.

    stainless steel nuts ASTM A-193 B-8M

     

    Silicone bronze heavy duty nuts to ASTM B98 C65100 for option

     

    Couplings

     

    Couplings

     

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