Product Overview
Size Range：DN15～DN600
Temperature Range：-25～450℃
Body Materials：Carbon steel
Bonnet material：Carbon steel
Disc material：Carbon steel
Stem material：Stainless steel
Seat Material: Hard-faced alloy overlay
Internal Components: Conform to API (American Petroleum Institute) standards
Features and Benefits
Rugged and Durable Construction
The robust structure ensures safe performance within the specified pressure and temperature ranges. Two connection types—flanged and butt-weld—are available to meet various installation requirements.
Convenient Maintenance Access
The bonnet allows access to the hinge and disc for maintenance without removing the valve from the pipeline, saving time and reducing operational downtime.
Gravity-Assisted Closure to Prevent Backflow
The valve disc closes by its own weight, preventing reverse flow before a damaging velocity develops, thereby avoiding destructive surge impact.
Optimized Flow Design with Reduced Head Loss
By balancing the disc and adopting an airfoil-shaped profile, head loss (or pressure differential loss) is minimized, improving overall system efficiency.
Shorter Stroke for Fast Closure
A reduced stroke length, combined with the balanced disc design, allows for quicker closure and minimizes the risk of fluid impact and water hammer.
Excellent Sealing Integrity
Minimal clearance at the pivot pin ensures tight, funnel-shaped seat sealing across the entire pressure range, guaranteeing effective sealing between the disc ring and the body ring.
