Ball Type Double Block and Bleed (DBB) Valve
Resistant
Sealing
Operation
Long Life
Alis Valves offers high-performance Ball Type Double Block and Bleed (DBB) Valves designed to provide double isolation and safe pressure venting in a single compact unit. These valves eliminate the need for multiple valves, reducing installation space and potential leakage points. Widely used in oil & gas, petrochemical, and high-pressure systems, DBB valves ensure maximum safety during maintenance and operation by isolating both upstream and downstream flow while allowing pressure bleed-off.
Specifications
Ball Type
Floating / Trunnion Mounted
Pressure Rating
Class 150 to 1500
Seat Material
PTFE / RPTFE / PEEK / Metal Seated
Operation
Lever / Gear / Pneumatic / Electric Actuated
Media
Oil, Gas, Chemicals, Hydrocarbons
Size Range
DN 15 to DN 300
Body Material
Carbon Steel / Stainless Steel / Alloy Steel
End Connection
Flanged / Butt Weld / Threaded
Temperature Range
-46°C to 450°C (Depends on Material)