18061659285
Stainless Steel Twin Ball DBB Valve with Dual Manual Handles
Product Parameters
Size |
1"–36" (DN25–DN900, larger sizes on request) |
Pressure Rating |
ASME Class 150 / 300 / 600 (higher ratings available) |
Operating Temperature |
–20°C to +200°C (depends on material & seat) |
Ball Type |
Trunnion Mounted Twin Ball |
Body Construction |
1–3 Piece Integrated Body |
Sealing |
Double Block & Bleed (DBB) |
End Connection |
Flanged (RF / RTJ) |
Operation |
Dual Manual Handles; Pneumatic & Electric Actuation optional |
Mounting |
ISO 5211 Direct Mounting |
Body Material |
Stainless Steel CF8 / CF8M (304 / 316) |
Optional Materials |
WCB, 316L, Duplex, Super Duplex, Special Alloys |
Seat Materials |
PEEK, PCTFE (KEL-F), Devlon V, Metal Seat |
Design Standards |
Designed in accordance with API 6D, BS 5351, ASME B16.34 |
Fire-Safe Design |
Designed in accordance with API 607 / API 6FA |
Applications |
Chemical & Pharmaceutical Piping, High-Purity Fluids, New Energy, Fine Chemicals, Industrial Utilities |
Brand |
SLVCN |
Key Features
True Twin Ball DBB Design
Double block & bleed with central bleed port ensures maximum isolation, safe pressure release, and leakage detection for flammable, toxic, or high-purity media.
Trunnion-Mounted Fixed Ball
Mechanically supported balls reduce seal wear, lower operating torque, and provide stable, reliable performance under high differential pressure.
Flexible Actuation Options
Dual manual handles standard; compatible with pneumatic or electric actuators for automated or on-off control.
Multiple Seat Options
Soft seats (PTFE / PCTFE / PEEK / Devlon V) or metal seats available for different temperature, pressure, and media requirements.
Spring-Loaded Seat Structure
Maintains consistent sealing even under low-pressure or fluctuating conditions.
Engineered Fire-Safe & Anti-Static Design
Designed per industry fire-safe and anti-static guidelines for enhanced operational safety.
Product Details
SLVCN 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.
Decades of Expertise
Tailored Solutions
Rigorous Quality Control
Proven Reliability
How We Ensure Quality & Reliability?
Quality is built into every stage - from raw material to final testing.
CE Certificate
ISO9001 Certificate
Certificate for Credit for Quality Service
Certificate of Observing Contract and Keeping Promise
Trademark Certificate
