18061659285
Forged Steel Metal Seated Trunnion-Mounted DBB Ball Valve
Product Parameters
Valve Type |
Trunnion Mounted Metal to Metal Ball Valve |
Connection Size |
2" – 36" (DN50 – DN900, larger sizes available upon request) |
Pressure Rating |
Class 600 / 900 / 1500 / 2500 |
Temperature Range |
-29°C ~ +425°C (depending on materials and seat design) |
Body Material |
ASTM A105N, A350 LF2, A182 F304 / F316, F51, F11, F22, Other materials available upon request |
Seat Material |
Nickel Alloy, Co-based Alloy, Tungsten Carbide, Stellite Hardfacing |
End Connection |
Flanged Ends (RF / RTJ) |
Body Structure |
Forged Steel Bolted Body / Split Body Design |
Port Design |
Full Port / Reduced Port |
Operation |
Manual Operation, Electric or Pneumatic Actuator (Optional) |
Design Standards |
Designed in accordance with API 6D, ASME B16.34 |
Fire-Safe Design |
Designed in accordance with API 607 / API 6FA (optional) |
Brand |
SLVCN |
Key Features
True Double Block & Bleed Seat Design
Trunnion-mounted ball with dual metal seats provides reliable upstream and downstream isolation and safe cavity pressure relief.
Metal-to-Metal Hard Seated Structure
Hardfaced metal seats ensure stable sealing performance under high temperature, high pressure, and abrasive severe service conditions.
Trunnion-Mounted Forged Steel Body
Forged steel body with trunnion support reduces operating torque and maintains structural integrity under extreme pressure loads.
Fire-Safe & Severe Service Ready
Metal seating design supports fire-safe performance and ensures reliable operation in critical oil, gas, and high-pressure applications.
Product Details
SLVCN Metal Seated Double Block & Bleed (DBB) Trunnion-Mounted Ball Valve is designed for high-pressure and severe service applications where absolute isolation and operational safety are critical.
The DBB function is achieved by a single trunnion-mounted ball with two independent metal seats and a dedicated bleed cavity, providing positive upstream and downstream isolation with safe pressure relief and leakage verification.
The trunnion-mounted design ensures stable ball positioning, reduced operating torque, and reliable sealing performance under extreme pressure and temperature conditions. The metal-to-metal seating structure offers excellent resistance to high temperature, abrasion, and pressure fluctuations, making the valve suitable for severe service conditions.
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