Stainless Steel Floating Twin-Ball DBB Ball Valve with Dual Manual Handles

SLVCN Stainless Steel Twin-Ball DBB Floating Ball Valve is designed for gas, chemical, petrochemical, process piping, sampling and critical isolation applications where reliable shut-off, cavity pressure release and leakage verification are required.

As a compact double block and bleed ball valve, it integrates two independent floating ball closures and an intermediate bleed / vent port within one stainless steel body. Compared with a traditional assembly using two separate block valves and one bleed valve, the integrated DBB design helps reduce installation space, connection points, overall weight and potential external leak paths.

When both ball closures are closed, the cavity between the two balls can be vented, drained or monitored. This allows operators to verify isolation performance before maintenance, sampling, instrument removal or process line intervention.

The floating ball design helps provide reliable shut-off performance under suitable pressure and service conditions. Stainless steel body materials and seat options can be selected according to actual medium, pressure, temperature and leakage requirements.

Seat materials such as PTFE, RPTFE, PEEK, PCTFE, Devlon and metal seat are available for different gas, chemical, petrochemical and process media. Dual manual handles provide simple and independent operation of the upstream and downstream ball closures.

Pneumatic or electric actuation can also be supplied according to automation requirements. Body material, pressure class, end connection, seat material, sealing structure, operation method and testing requirements can be customized according to project specifications.

This compact stainless steel DBB ball valve is especially suitable for process lines, sampling systems, metering skids and critical isolation points where space saving, double isolation and leakage verification are important.