China Ball valve manufacturer,factory and supplier-Ball valve
 info@shxvalve.com

DBB ball valve

DBB ball valve introduction

DBB ball valve (double block and bleed ball valve) is like having three valves in one.
API 6D defines a double block and bleed ball valve as a "single valve with two seating surfaces that, in the closed position, provides a seal against pressure from both ends of the valve with a means of vending/bleeding the cavity between the seating surfaces."
There are a couple different styles of double block and bleed valves. One style has two independently seating valves inside, with a bleed or drain valve. This configuration is referred to as a double isolation and bleed (DIB). The DIB valve can isolate either side of the valve (bi-directionally) to vent or bleed the cavity and isolate piping.
 
This trunnion mounted DBB ball valve from provides double block and bleed in a single valve. This style can isolate piping on both sides of the valve (uni-directionally) to vent/bleed the valve cavity between the seats.
Using a single double block and bleed valve system versus 3 separate valves saves installation time, weight on the piping system, and space. It also cuts down the number of leak paths to the atmosphere, reducing the risk of hazards when transferring liquids dangerous to humans or the environment.
 

DBB ball valve design feature

Normal diameter: 1/2 - 24 Inch (DN15 - DN600).
Pressure range: 150 - 3000 LB/ 15000 PSI.
Working temperature: -46℃ - +350℃.
DBB ball valve (ball/needle/ball), Reduce Bore.
Design: EEMUA 182, ASME B16.34.
Body Pattern: One Piece or three Pieces
Body: Carbon Steel, Stainless Steel, Alloy Steel.
End Connection: Flanged x Flanged,Flanged x F-NPT.
Face to face: as per manufacturer's standard.
Test and inspection: EEMUA 182, API 598.
Operation: lever.

DBB ball valve application

DBB ball valve (Double block and bleed ball valve) is most commonly used in the oil and gas industry, but can also be helpful in many other industries.
It's typically used where bleeding the valve cavity is required, where piping needs isolation for maintenance, or for any of these other scenarios:
Prevent product contamination
Remove equipment from service for cleaning or repair
Meter calibration

  • Forged steel double block and bleed ball valve

    Forged steel double block and bleed ball valve

    • Port size:1/2"~12" (DN15~DN300)
    • Pressure:CL150-CL2500
    • Structure:Floating ball
    • Medium:Water,steam,oil,gas,etc.
    • Temperature :-29~150℃,-40~450℃
    • Body material:A105 LF2 F304 F316 F316L or others
  • Double block and bleed ball valve 2500LB F304 F316

    Double block and bleed ball valve 2500LB F304 F316

    • Port size:2''
    • Pressure:CL2500
    • Structure:Floating ball
    • Medium:Water,steam,oil,gas,etc.
    • Temperature :-29~150℃,-40~450℃
    • Body material:F304 F316 F316L or others
  • 3PC Floating Double Block and Bleed Ball Valve

    3PC Floating Double Block and Bleed Ball Valve

    • Port size:1/2"~4" (DN15~DN100)
    • Pressure:150-3000 LB/ 3000-15000 PSI
    • Structure:Double block & bleed
    • Medium:Water,steam,oil,gas,etc.
    • Temperature :-29~150℃,-40~450℃
    • Body material:A105 LF2 F304 F316 F316L or others
  • 2 Piece Floating DBB Ball Valve RF NPT End

    2 Piece Floating DBB Ball Valve RF NPT End

    • Port size:1/2"~4" (DN15~DN100)
    • Pressure:150 - 3000 LB/ 15000 PSI
    • Structure:Floating ball
    • Medium:Water,steam,oil,gas,etc.
    • Temperature :-29~150℃,-40~450℃
    • Body material:A105 LF2 F304 F316 F316L or others
  • Double block and bleed Valve factory and supplier

    Double block and bleed Valve factory and supplier

    • Port size:1/2"~24" (DN15~DN600)
    • Pressure:150-3000 LB/ 3000-15000 PSI
    • Structure:Double block & bleed
    • Medium:Water,steam,oil,gas,etc.
    • Temperature :-29~150℃,-40~450℃
    • Body material:A105 LF2 F304 F316 F316L or others
  • High pressure trunnion DBB ball valve

    High pressure trunnion DBB ball valve

    • Port size:1/2"~24" (DN15~DN600)
    • Pressure:150-3000 LB/ 3000-15000 PSI
    • Structure:Double block & bleed
    • Medium:Water,steam,oil,gas,etc.
    • Temperature :-29~150℃,-40~450℃
    • Body material:A105 LF2 F304 F316 F316L or others
  • API 6D Double Block and Bleed Ball Valve

    API 6D Double Block and Bleed Ball Valve

    • Port size:1/2"~24" (DN15~DN600)
    • Pressure:CL150-CL2500
    • Structure:Double block & bleed
    • Medium:Water,steam,oil,gas,etc.
    • Temperature :-29~150℃,-40~450℃
    • Body material:A105 LF2 F304 F316 F316L or others
  • China Double block and bleed valve manufacturer

    China Double block and bleed valve manufacturer

    • Port size:1/2"~24" (DN15~DN600)
    • Pressure:150-3000 LB/ 3000-15000 PSI
    • Structure:Trunnion,Double block and bleed Valve
    • Medium:Water,steam,oil,gas,etc.
    • Temperature :-29~150℃,-40~450℃
    • Body material:Carbon Steel, Stainless Steel, Alloy Steel, Duplex Steel
  • Trunnion Double block and bleed Ball Valve

    Trunnion Double block and bleed Ball Valve

    • Port size:1/2"~24" (DN15~DN600)
    • Pressure:150-3000 LB/ 3000-15000 PSI
    • Structure:Trunnion,Double block and bleed Valve
    • Medium:Water,steam,oil,gas,etc.
    • Temperature :-46℃ - +350℃
    • Body material:Carbon Steel, Stainless Steel, Alloy Steel, Duplex Steel
  • High pressure DBB ball valve,RF NPT end

    High pressure DBB ball valve,RF NPT end

    • Port size:1/2"~24" (DN15~DN600)
    • Pressure:CL150-CL2500
    • Structure:Floating or trunnion ball
    • Medium:Water,steam,oil,gas,etc.
    • Temperature :-46~350℃
    • Body material:A105 LF2 F304 F316 F316L or others
  • High Pressure double block and bleed ball valve

    High Pressure double block and bleed ball valve

    • Port size:1/2"~24" (DN15~DN600)
    • Pressure:CL150-CL2500
    • Structure:Trunnion mounted ball
    • Medium:Water,steam,oil,gas,etc.
    • Temperature :-46~350℃
    • Body material:A105 LF2 F304 F316 F316L or others
  • Double block bleed trunnion ball valve

    Double block bleed trunnion ball valve

    • Port size:1/2"~24" (DN15~DN600)
    • Pressure:CL150-CL2500
    • Structure:Trunnion mounted ball
    • Medium:Water,steam,oil,gas,etc.
    • Temperature :-46~350℃
    • Body material:A105 LF2 F304 F316 F316L or others
  • One Piece DBB Ball Valve with RF NPT end

    One Piece DBB Ball Valve with RF NPT end

    • Port size:1/2"~4" (DN15~DN100)
    • Pressure:CL150-CL2500
    • Structure:Floating ball
    • Medium:Water,steam,oil,gas,etc.
    • Temperature :-46~350℃
    • Body material:A105 LF2 F304 F316 F316L or others
  • Double block bleed floating DBB Ball Valve

    Double block bleed floating DBB Ball Valve

    • Port size:1/2"~12" (DN15~DN300)
    • Pressure:CL150-CL2500
    • Structure:Double block & bleed
    • Medium:Water,steam,oil,gas,etc.
    • Temperature :-29~150℃,-40~450℃
    • Body material:A105 LF2 F304 F316 F316L or others
  • Double Block and Bleed Ball Valve (DBB Ball Valve)

    Double Block and Bleed Ball Valve (DBB Ball Valve)

    • Port size:1/2"~12" (DN15~DN300)
    • Pressure:CL150-CL2500
    • Structure:Double block & bleed
    • Medium:Water,steam,oil,gas,etc.
    • Temperature :-29~150℃,-40~450℃
    • Body material:A105 LF2 F304 F316 F316L or others
  • Trunnion mounted DBB ball valve

    Trunnion mounted DBB ball valve

    • Port size:2"~4" (DN50~DN100)
    • Pressure:CL150-CL2500
    • Structure:Trunnion mounted ball
    • Medium:Water,steam,oil,etc.
    • Temperature :-29~150℃,-40~450℃
    • Body material:A105 LF2 F304 F316 F316L or others
  • Twin Ball Double Block and Bleed Valve

    Twin Ball Double Block and Bleed Valve

    • Port size:1/2"~2" (DN15~DN50)
    • Pressure:CL150-CL2500
    • Structure:two balls with one need valve
    • Medium:Water,steam,oil,etc.
    • Temperature :-29~150℃,-40~450℃
    • Body material:A105 LF2 F304 F316 F316L or others
  • Full bore floating DBB ball valve

    Full bore floating DBB ball valve

    • Port size:1/2"~2" (DN15~DN50)
    • Pressure:CL150-CL2500
    • Structure:Floating,full bore
    • Medium:Water,steam,oil,etc.
    • Temperature :-29~150℃,-40~450℃
    • Body material:A105 LF2 F304 F316 F316L or others
  • Double block and bleed ball valve

    Double block and bleed ball valve

    • Port size:1/2"~2" (DN15~DN50)
    • Pressure:PN10-PN420 CL150-CL2500
    • Structure:Double block & bleed
    • Medium:Water,steam,oil,etc.
    • Temperature :-29~150℃,-40~450℃
    • Body material:A105 LF2 F304 F316 F316L or others
  • Flange end stainless steel DBB ball valve

    Flange end stainless steel DBB ball valve

    • Port size:1/2"~2" (DN15~DN50)
    • Pressure:PN10-PN420 CL150-CL2500
    • Structure:Double block & bleed
    • Medium:Water,steam,oil,etc.
    • Temperature :-29~150℃,-40~450℃
    • Body material:A105 LF2 F304 F316 F316L or others
inquiry us

INQUIRY US

微信扫一扫

添加我为好友了解更多