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Components
Body ： Cast iron or ductile iron
Disc ： Cast iron or Ductile iron
Seat ： Brass/Stainless steel
Stem ： Stainless steel
Bonnet ： Cast iron or Ductile iron
O-ring ： NBR
Hand wheel： Cast iron or Ductile iron
Application
Face to face is according to DIN3302 - F4
Flange drilled is according to DIN2532/2533
Nominal pressure PN 10/PN 16
Test
Working pressure : 10bars 16bars
Shell pressure : 15bars 24bars
Seat pressure : 11bars 17.6bars
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