The DBB (Double Block & Bleed) features of the valve or valve is the ability to segregate two pressure sources and to bleed / vent pressure in the void between the two sealing elements.
|Carbon Steel||ASTM A216 - WCB or Equivalent
ASTM A105N or Equivalent
|Low Carbon Steel||ASTM A350 - LF2 or Equivalent|
|Duplex Stainless Steel||ASTM A182 - F51, F53, F55 or Equivalent|
|Stainless Steel||ASTM A182 - F304, F304L, F316, F316L or Equivalent|
|Special Alloy Steel||Inconel 625, 825 or Equivalent
Monel or Equivalent