Shoulong Valve
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Double block & bleed with central bleed port ensures maximum isolation, safe pressure release, and leakage detection for flammable, toxic, or high-purity media.
Mechanically supported balls reduce seal wear, lower operating torque, and provide stable, reliable performance under high differential pressure.
Dual manual handles standard; compatible with pneumatic or electric actuators for automated or on-off control.
Soft seats (PTFE / PCTFE / PEEK / Devlon V) or metal seats available for different temperature, pressure, and media requirements.
Maintains consistent sealing even under low-pressure or fluctuating conditions.
Designed per industry fire-safe and anti-static guidelines for enhanced operational safety.
The Twin Ball DBB Valve is a high-integrity, trunnion-mounted, flange-mounted double block & bleed (DBB) ball valve designed for high-safety pipeline control in demanding applications such as Oil & Gas, LNG, pharmaceutical/high-purity fluids, hydrogen, and new energy systems.
Its dual balls with a central bleed port provide double isolation and leakage detection, ensuring maximum safety. The trunnion-mounted fixed ball design delivers stable, reliable operation and efficient system integration, offering a solution that balances extreme safety with compact, high-performance pipeline control.
Manufactured from stainless steel (304 / 316L), with optional carbon steel, alloy steel, duplex/super duplex, or special alloys, the valve supports wide operating conditions and high-pressure service. Multiple seat materials (PTFE / PCTFE / PEEK / Devlon V / metal) and actuation options (dual manual handles, pneumatic, or electric) ensure compatibility with diverse media and automation requirements.
By replacing traditional multi-valve assemblies, the Twin Ball DBB Valve reduces pipeline complexity, minimizes leak points, and lowers total lifecycle costs, making it a preferred solution for industrial piping systems requiring safety, reliability, and efficiency.
