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Special Ball Valve

Double Block and Bleed Ball Valve

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.…
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Product Description
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.
Features & Benefits

  • Space and weight saving

  • Cost saving (product & installation)

  • Minimized leak paths

  • Increased line structural integrity

  • ESDV+MOV or ESDV+XV configurations

  • Increased reliability of the system

  • 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


General Information

◎ Material: Carbon Steel, Stainless Steel, Alloy Steel

◎ Nominal Size: NPS 2"~60", DN 50~1500

◎ Pressure Rate: Class 150~2500, PN 10~420

◎ Temperature Range: -60°C~+250°C

◎ Operator: Manual, Pneumatic, Electric, etc...

◎ Application range: Suitable for petroleum, chemical industry, metallurgy, light industry, power station, urban construction water supply, 

low temperature working conditions, and long-distance pipelines such as oil, gas, and natural gas.


Technical Specification

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