Page 38 - C.B.Trading-Avcon Ecatalogue
P. 38

Pneumatic On/Off Valves







                                            6816M / 6819M 3 - Way



      3/2-Way Pneumatic Piston Operated Valve for Mixing
      or Diverting Application with Linear Pneumatic

      Actuator-Piston Actuator.For On-Off Application
      (Rust Free Design)



              Specifications


       Size:                              15mm (½”) to 50mm (2”).

       End Connection :                  Standard BSP(F) Optional-NPT(F)


       Stem Packing:                      Self adjusting, Spring loaded Teflon packing


       Seating :                          Self adjusting, Spring loaded PTFE packing.

       Characteristic :                   On-Off, normally closed / normally open


       Working Temperature :  On steam-continuous 155°C Intermittent 180°C. with
                                          Teflon seating, Buna Nitrile 80°C., ]EPDM 135°C.,
                                          VITON 180°C

       Piston Packing:                    Buna Nitrile


       Actuator Working                   3.5 to 6 bar, (refer to graph)

       Life Expectancy:                   Over one million cycles (lab tested in ideal condition)


       Leakage class :                    As per ANSI FCI 70-2, Teflon seating class IV. For other
                                          soft seating class VI Drop Tight/Bubble Tight

       Working Fluid Press.:              Refer to table below.


       Cylinder, Cover                    Glass filled polyamide/ S.S. investment casted
       Body & Piston:

       Actuator Working :                 3.5 to 6 bar (refer to graph)


       Air Quality:                       Lubricated /Non-lubricated


       Back Pressure:                     Generally all models are for back pressure upto 2.5
                                          bar. However for specific application where higher
                                          back pressure is excepted, refer to ‘AVCON’.





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