API 6D Fully Welded Cylindrical Trunnion Ball Valve (High Efficiency)

This is a premium Fully Welded Trunnion Mounted (Fixed) Ball Valve, designed and manufactured according to $\text{API}$ 6D standards. Featuring a cylindrical body and welded ends, this valve is engineered for maximum flow efficiency and long-term pipeline integrity in the Oil and Natural Gas sectors.

It is ideal for high-pressure, high-volume transmission lines where minimizing flow resistance and eliminating potential body leakage points are critical.

⭐ Key Performance and Hydraulic Efficiency

Minimal Pressure Drop: The ball valve achieves one of the lowest pressure losses among all valve types at nominal flow. When fully open, the flow resistance coefficient is nearly zero, comparable to an equivalent length of plain pipe.
Optimized Flow Channel: Even the Reduced Bore models are designed using fluid analysis and theoretical calculations to maximize flow capacity and drastically minimize resistance caused by the bore reduction.
High Throughput: This efficient design translates directly to lower pumping energy costs and higher throughput economics for the pipeline operator.

📋 Technical Specifications

Parameter	Detail / Standard
Valve Type	Trunnion Mounted (Fixed) Ball Valve
Construction	Fully Welded Body (Cylindrical form)
Design Standard	$text{API} 6text{D}$
Size Range	$text{4}''$ to $text{56}''$
Pressure Rating	$text{150LB}$ to $text{2500LB}$ ( $text{ASME Class}$ )
Working Temperature	$text{-29}^circtext{C} sim 120^circtext{C}$ or $text{-46}^circtext{C} sim 120^circtext{C}$
End Connection	Butt-Weld Connection
Body Materials	$text{A}105$ (Carbon Steel), $text{LF}2$ (Low-Temp Carbon Steel), $text{F}51$ (Duplex SS)
Operation Mode	Manual, Electric, Pneumatic, Gas-Over-Oil (Hydraulic-Pneumatic Linkage)

💡 Core Design Advantages

Zero External Leakage: The Fully Welded body eliminates the need for body flanges, ensuring a permanent, maintenance-free seal against external leakage—a critical requirement for buried or environmentally sensitive applications.
Trunnion Support: The fixed ball support ensures reliable, low-torque operation, even at the highest pipeline pressures, simplifying actuation requirements.
Material Versatility: Available in materials like $\text{LF}2$ to handle lower ambient temperatures and $\text{F}51$ for corrosive environments.
Automation Ready: Suitable for a variety of robust actuation methods, from manual gears to automated hydraulic systems.