API 6D Flanged Cylindrical Trunnion Ball Valve

This product is a robust Trunnion Mounted (Fixed) Ball Valve, designed and manufactured in accordance with $\text{API}$ 6D standards. Unlike fully welded designs, this model features Flanged End Connections, making it ideal for mainline isolation in Oil and Gas applications where periodic removal, inspection, or maintenance is required.

The Trunnion-mounted design ensures reliable, low-torque operation, even at high pipeline pressures.

📋 Technical Specifications

Parameter	Detail / Standard
Valve Type	Trunnion Mounted (Fixed) Ball Valve
Body Construction	Cylindrical Form (Often a 3-piece bolted body design)
Design Standard	$\text{API} 6\text{D}$
Size Range	$\text{2}''$ to $\text{56}''$
Pressure Rating	$\text{150LB}$ to $\text{2500LB}$ ( $\text{ASME Class}$ )
Working Temperature	$\text{-29}^\circ\text{C} \sim 120^\circ\text{C}$ or $\text{-46}^\circ\text{C} \sim 120^\circ\text{C}$
End Connection	Flanged 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

Trunnion Support: The fixed ball support ensures reliable, low-torque operation even at the highest pipeline pressures, reducing the size and cost of actuation equipment.
Maintenance Convenience: The Flanged Ends allow for easy installation and removal from the pipeline, which is preferred in plant settings, compressor stations, or locations where periodic maintenance access is essential.
Material Selection: Available in robust materials tailored to service conditions:
- $\text{A}105$ for standard carbon steel service.
- $\text{LF}2$ for low-temperature applications (down to $\text{-46}^\circ\text{C}$ ).
- $\text{F}51$ Duplex Stainless Steel for high-strength and corrosion-resistant service.
Compliance: Fully compliant with $\text{API}$ 6D standards for pipeline valves, guaranteeing critical safety and performance features like $\text{DBB}$ (Double Block and Bleed) capability.