18061659285
Product Parameters
Valve Type |
Integrated Twin Ball Double Block and Bleed (DBB) Valve |
Pressure Rating |
ASME Class 150 / 300 / 600 / 900 / 1500 / 2500 (customizable) |
Size Range |
1"–36" (DN25–DN900, larger sizes on request) |
Ball Design |
Fixed Trunnion-Mounted, Twin Ball Structure |
Body Construction |
Three-piece flanged, bolted cover for easy maintenance |
Sealing Design |
True Double Block & Bleed (DBB), bi-directional sealing |
Seat Materials |
Metal Seat + PTFE Soft Seal; optional PEEK, PCTFE (KEL-F), Devlon V |
Operating Temperature |
-40°C to 250°C (depends on material) |
End Connections |
Flanged RF / RTJ |
Operation & Mounting |
Manual or Electric/Pneumatic Actuator; ISO 5211 direct mounting |
Body Materials |
Carbon Steel, Stainless Steel, Alloy Steel (WCB, LCB, LCC, WC6, WC9, Duplex, Super Duplex, Nickel Alloys) |
Design Standards |
Designed in accordance with API 6D, BS 5351, ASME B16.34 |
Fire-Safe Design |
Designed in accordance with API 607 / API 6FA |
Enhanced Safety |
Anti-Static, Anti-Blowout Stem, Fire-Safe Design |
Brand |
SLVCN |
Key Features
Twin Ball DBB Structure
True double-block isolation with central cavity for safe pressure verification.
Independent Valve Stems
Flexible manual or automated operation with clear isolation logic.
Three-Piece Compact Body
Easy maintenance, minimized leak paths, and optimized installation layout.
Premium Industrial Materials
Wide material options with durable sealing for long-term high-risk service.
Product Details
SLVCN Flanged Twin Ball Double Block and Bleed (DBB) Valve ensures absolute isolation and enhanced safety for critical pipeline systems. Its twin ball design forms a secure central cavity, providing true valve-based double-block isolation and allowing pressure verification to prevent unintended leakage.
Equipped with dual independent valve stems and ISO 5211 mounting pads, the valve supports flexible manual operation or seamless automation with pneumatic or electric actuators. The three-piece flanged body enables easy maintenance, reduces potential leak points, and simplifies installation.
Constructed from industrial-grade materials such as carbon steel, stainless steel, or alloy steel, with optimized ball and seat geometry, it delivers reliable long-term sealing performance. Fire-safe, anti-static, and blowout-proof stem design ensure compliance with critical service safety standards.
Ideal for Oil & Gas, Chemical, Petrochemical, and other high-risk process industries.
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
