ART. 88

Twin ball DB&B valves

Double  block  and  bleed  valve  is  a  combination  of  two  ball  valves  with  
a  needle  valve  between.  That  design  type  allows  to  have  an  integral  
compact body and short face to face dimension.
You can have different solutions and different valve ends, as per customer
request.

Options
• locking device
• extended stem
• lip-seal
• garlock packing
• double piston effect
• metal to metal seat
• transition pieces (pups)
• RF - RJ - HUB - BW ends
• Lever and gear operated

Cartridge twin ball DB&B valves
Special  version  designed  to  solve  space  
problems.  Despite  having  two  balls  with  
bleeder  at  the  center,  the  design  allows  
size  “face  to  face”  very  limited,  in  many  
cases  as  API  6D  and  ASME  B16.10  refer  
to valves with single ball.

Click here to download PDF file for more detail