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.
DBB Ball Valves (Double block & bleed)
Product Parameters
| Technical specifications for main part | |
| *Valve name | Double block and bleed mono flange DBB SBB valve |
| *Nominal diameter | DN 15~2500mm |
| *Nominal pressure | PN 10,PN16,PN25,PN40,PN63/Class150/class600/Class900 |
| *Working temperature | -29~425ºC |
| *Suitable medium | Water,Vapor,Oil |
| *Standard | ASTM/ANSI |
| 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 |
Why Choose This Valve?
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
