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Double block and bleed ball valves

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Double block and bleed ball valves

The “Double Block and Bleed Isolation Philosophy” requires two in-line isolation valves and a bleed valve, used to drain or vent trapped fluid between the two closure elements in order to safely isolate safely the downstream pipe. This feature can be achieved with one single valves c/w a bleed port between the obturators.

MAIN APPLICATIONS

•Offshore oil & gas production
•Gas & oil terminals
•Chemical & Petrochemical
•Refining
•Fiscal Metering Skid Manufacturing
•LNG gas carrier
•Process/ Power industr y contractors

ADVANTAGES

•Space and weight saving
•Cost saving (product & installation)
•Minimized leak paths
•Increased line structural integrity
•ESDV+MOV or ESDV+XV configurations
•Increasesd reliability of the system

CHARACTERISTICS

•Anti blow out/low emission stems
•Fire safe & anti-static design
•Independent ball and stem
•Self aligning trims
•Self relieving/ Double piston effect
floating seats
•Soft or metal seated

Design is available in side entry, (bolted, welded body) and for onshore, offshore (top side) or sub-sea configurations.
Bleed/Vent system can be provided with Globe, Gate or Ball valves as per customers requirement.

CLASS #600CLASS #900CLASS #1500
Size
(in)
ABCDELW
(Kg)
ABCDELW
(Kg)
ABCDELW
(Kg)
249491651029852847494921610410358482494921610610458495
3*2744921010298587477449241103102574887449267104103660129
37474210165128627937474241163132643947474267167128660184
4*3100743731651287031171007429216612771915210074311166128787207
4100100273210160679170100100292211169734232100100311179170787356
6*4150100356210160806225150100381208163857328144100394213168944485
61501503562502008733801501503812592139245761441443942602331010816
8*620115041925020097543820115047026321310516601921444832652291140906
82012014192882551020728201201470297264109692819219248330429011941312
10*825220151028825511478802522015452942691197103523919258529728713531431
10252252510330308126411372522525453423331314151523923958536335214352250
12*10303252560330308131413793032526103483281441173328723970936034715812288
12303303575378348138016013033036103843791507211428728770941742516643150
14334334628394360149415163343346403983681640217531531576543742618543990
16*12385334686378348153318873853347054003821679242236031584842442219253640
16385385700430410164421353853857104364371790322536036084847549320425698
18436436774467430179029334364368004844972017423040540598056360821848673
20*164874368154304101850312848743679043944218503738455405101548450221616676
204848786550049219853693487487890532503210963004554551015617645245011798
24*20589487940500492219245475894871040534500224070205304551293624643257514138
245Hiq5891028594570220766305895891059617633236888405305301293698724272018564

 

•All dimensions except where other wise specified are in mm.
•Weight figures are relevant to flanged end valves.
•Note: For dimensions and weights in larger sizes consult the factory.
•Dimensions C, D, E, and weights are subject to changewithout notice.
•Face-to-face dimensions not listed in industry standards are subject to change without notice.