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| Customization: | Available |
|---|---|
| Media: | Oil Gas Water |
| Material: | Stainless Steel |
| Shipping Cost: | Contact the supplier about freight and estimated delivery time. |
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NAILOK Stainless Steel Alloy 625 Double Block and Bleed DBB Valve Process Monoflange
Double Block and DBB Ball Valve has Dual ball structure which evolved to replace and add the process of bolting together individual valves to make the valves in one body. it saved a lot of space and material, it is the development tendency of the valve in the future.
Double block & bleed ball valves are mainly suitable for the instrumentation but is also required as an alternative to the in-line installation of two valves.
Thanks to a DBB ball valve, it is possible to have the same result reducing costs, overall dimensions and the ability to bleed off the plant, by controlling a potential leakage of the plant.
Double block & bleed valves DBB are recommended for any pressure class and ensure long-lasting seal.
They can be supplied both in the Trunnion and in the Floating version.
Compact double block and bleed (DBB) valve design with flanged connections
Provides positive isolation and safe pressure bleed-off in critical systems
Stainless Steel SS316 body for excellent corrosion resistance
Blow-out proof stem and fire-safe design available
Red lever handle for quick and reliable operation
Suitable for oil & gas, chemical, and instrumentation applications
Reduces potential leak paths compared with traditional multi-valve assemblies
| Parameter | Specification |
|---|---|
| Type | Double Block and Bleed (DBB) Valve, Flanged End |
| Material | SS316 Stainless Steel (other alloys on request) |
| Connection | Flange End (ASME / ANSI / DIN standard available) |
| Valve Type | Ball Valve Type (Block x 2 + Needle / Ball Bleed) |
| Size Range | 1/2" to 2" (customizable) |
| Pressure Rating | Up to 6000 psi (414 bar) or per flange class |
| Temperature Range | -29°C to +232°C (-20°F to +450°F) |
| Seal Type | PTFE / Graphite / Metal-to-Metal seat |
| Handle | Lever handle (red coated) |
| Applications | Oil & Gas, Petrochemical, Refinery, Instrumentation Systems |
Main applications in the petrochemical field:
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