Double Block and Bleed
Double Block and Bleed Ball Valves are aimed to get get a double barrier on the piping, and bleed the fluid trapped between the two balls from a dedicated drain line.
Feature
- Forging Body
- Trunnion or Floating type
- anti blow-out stem and typically SPE seat design.
- Drain port is normally provided with a floating ball valve
- Locking device
- Emergency stem seal injection;
- Emergency seats sealant injection;
- Weld overlay (316 or Inconel 625) on dynamic sealing areas or in all wetted parts
Product Range :
Size: NPS 2"-40" , DN50-1000
Pressure: Class 150-1500 LB , PN 10 ~ 250
END Connection: Flange , BW
Design Standard: API 6D , ASME B 16.34
Face to Face Dimension : Manufacturing’s Standard
Connection Dimensions: ASME B 16.5 , ASME B 16.47 , ASME B 16.25
Body Material: Forged Carbon Steel , Forged Stainless Steel
Operated Way: Lever, Gear, Pneumatic, Electric, etc