Hebei Lufeng Piping Equipment Co., Ltd.
Carbon /Alloy steel pipes, ERW steel pipes, API 5L LSAW&SSAW, ASME B16.9/MSS SP-75 BW pipe fittings, ASME B16.5/16.47 steel flanges, ASME B16.11/MSS SP-97 forged fittings, Knife gate valves, Butterfly
Double block and bleed valve also called DBB valve, generally say, it is make up by two ball valve and one needle valve or two ball valve and a globe valve. Double Block and Bleed valves (DBB Valves) have evolved to replace and add the process of bolting together individual valves to make the valves in one body. Double block & bleed valves (DBB Ball Valves) provide great savings in weight, space and installation times especially in cage isolation.
Features of DBB Valves
• Two balls (block valves) with a needle or globe valve (bleed valves)
• Integral body or split body upon request
• Floating ball and trunnion mounted ball
• Soft seated or metal seated as request
• End connection: NPT or Flange
• Bore:Full bore or reduced bore
• Fire safe design
• Anti-static device