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NAILOK OEM Factory Price Duplex Steel 2507 Monoflange Valve 2500lb Monoflange Dbb Single Block and Bleed Valve Inconel625 Monoflange Manifold Valve
DBB Ball Valves (Double block & bleed)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.
Ensure safety, reliability, and efficiency in your fluid control systems with our Double Block and Bleed (DBB) Ball Valve with Screwed Bonnet Needle Construction-engineered for extreme conditions!
| Application | Use Case |
|---|---|
| Cryogenic Service | LNG, liquid nitrogen, and other ultra-low-temperature fluids |
| Low Temperature | Refrigeration systems, cold storage, and cryogenic transport |
| Ambient Temp. | Standard process lines, water, and neutral fluids |
| High Temperature | Steam, hot oil, and high-heat industrial processes |
| Corrosive Fluids | Acids, alkalis, and aggressive chemicals (compatible with super alloys) |
| High Pressure | Hydraulic systems, wellheads, and high-PSI pipelines (up to Class 2500) |
| Line Sampling | Safe extraction of process fluids for testing |
| Fluid Injection | Chemical dosing, additive injection, and precision fluid control |
| Feature | Specification |
|---|---|
| Inlet Connection | ANSI B16.5 Flanged (1/2" to 3") - Class 150 to Class 2500 |
| Outlet Connection | 1/2"-1" FNPT Thread (ANSI/ASME B1.20.1) |
| Vent Connection | 1/2" FNPT Thread (ANSI/ASME B1.20.1) |
| Standard Material | Stainless Steel (ASTM A182 F316/F316L) - Corrosion-resistant & durable |
| Optional Materials | Alloy 625 825 for extreme environments |
| Flange Style | Raised Face (RF) or Ring Type Joint (RTJ) |
| Construction | One-piece forged for maximum strength & leak-proof performance |
| Safety Standards | Fire-Safe Design - Meets for critical applications |
Double Block & Bleed (DBB) - Zero leakage, enhanced safety for maintenance & isolation
High-Pressure Rated - Handles up to Class 2500 for demanding industrial uses
Multi-Material Options - Resists corrosion, extreme temps, and harsh chemicals
Versatile Connections - Flanged & threaded options for easy integration
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