PRODUCTS

DBB & SBB Ball valve

Size: NPS 1/2"-40" , DN50-1000 
Pressure: Class 150-1500 LB ,  PN 10 ~ 250
END Connection: Flange , BW , SW , NPT
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 , ASME B16.11 , ASME B 1.20.1 ...
Body Material: Carbon Steel , Stainless Steel , Duplex Stainless Steel , Special Alloy
Operated Way: Lever, Worm gear-box, Pneumatic, Electric,etc

Double Block and Bleed ( DBB  for Short )  & Single Block and Bleed  ( SBB for Short )

Double Block and Bleed features two valves, providing dual isolation to ensure complete separation of the fluid pipeline system. The single Block and Bleed is characterized by a single valve that provides a single isolation to separate different parts within the piping system.

Design Feature:

- Single ball/disc for SBB ;

- Double ball for DBB 

- 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

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