The metal hard sealing ball valve manufactured by Zihigh is mainly used for transporting high-temperature, slurry, and dust-type materials. These valves are designed with unique material selections and structural designs to handle complex working conditions. Zihigh's metal hard sealing ball valves ensure long-term reliable operation in media with particle sizes ranging from 75μm to 50mm.

Specifications:

• Nominal Diameter (DN): 1/2" (15mm) - 28" (700mm)
• Pressure Class (PN): ANSI 150-2500 (PN16-420)

Key Design Features:

1. Long-Lasting Ball and Valve Seat: The valve seat sealing surface is made of Stellite alloy, and the ball sealing surface is available in Stellite alloy, tungsten-titanium alloy, or hard chrome plating. These materials provide excellent wear resistance, making the valve suitable for pipelines transporting fluids with varying temperatures and abrasive media.

2. High-Sealing Ball and Seat: Zihigh's metal hard sealing ball valves use a spring-loaded seat design to ensure sealing at low pressures. The seat's piston effect provides secure sealing under high pressure. Advanced seat structures and precise machining contribute to the valve's excellent sealing performance.

3. Wide Application Range: Traditional valve seats can be easily damaged in a semi-open position, and certain fluids or temperature ranges are not suitable. However, Zihigh’s metal hard sealing ball valves are ideal for high-temperature fluids, abrasive dust, slurry, and media containing solid particles or foreign substances, making them suitable for nearly all types of fluids.

4. Fire and Static Safety: With metal valve seats capable of withstanding extreme temperatures of up to 500°C, these valves naturally offer fire and anti-static protection.

5. Full Ball Valve Characteristics: Compared to gate and globe valves, Zihigh’s metal hard sealing ball valve has a lower flow resistance, and the 90° rotation of the valve stem allows for quick closing. It supports easy switching between manual and automatic operation, making it highly adaptable to automated control systems.