1.ductile iron disc plated with nickel 2.ductile cast iron GGG50 body 3.wafer butterfly valve with worm gear 4.PN10/16

 wafer butterfly valve

1.Design standard:DIN3354       

  2.body: ductile iron

3.disc:ductile iron

4.seat:NBR or EPDM

5.stem:stainless steel  410 or 416