Features
1、High-Performance Forged Valve Body Construction: The valve body is integrally forged from high-quality carbon steel, stainless steel, or alloy steel, completely eliminating casting defects and significantly enhancing material density and strength. This ensures excellent impact resistance and long-term structural stability under high-temperature, high-pressure, and severe operating conditions. The body and bonnet utilize a self-sealing design, creating a pressure-energized seal through a sealing ring—the higher the medium pressure, the better the sealing performance.
2、Self-Sealing Bonnet with Pressure-Energized Seal: The bonnet and body feature a pressure seal construction, incorporating a stainless steel sealing ring and split ring combination. Under medium pressure, the seal automatically compresses the sealing surface between bonnet and body, achieving dual sealing effect where reliability increases with pressure. This completely eliminates external leakage risk, making it suitable for severe conditions including high-temperature high-pressure steam, power plant, and petrochemical applications.
3、Standard Butt-Weld Connection: The valve ends utilize butt-weld (BW) connection, integrally welded directly to the pipeline. This provides high connection strength, compact structure, and reliable sealing, completely eliminating potential leak points associated with flanged connections. Particularly suitable for high-temperature high-pressure, large diameter, and critical industrial piping systems where leakage is unacceptable.
4、Low Flow Resistance Full-Bore Design: The valve body features full-bore internal design with short, smooth medium flow path, effectively reducing fluid resistance loss and pressure drop. The smooth flow passage transition avoids eddy currents and medium stagnation, suitable for various industrial fluids including water, steam, oil, natural gas, and corrosive media.
5、Reliable Gate Sealing System: The valve features either parallel or wedge gate construction, with sealing surfaces available in hardfacing alloy overlay or body material design. Precision grinding ensures optimal mating between gate and seat. During closure, mechanical force applied through the stem achieves forced sealing, ensuring tight shut-off and reliable bidirectional sealing performance.
6、Wide Applicable Range with Multiple Operation Options: Product design covers pressure classes from PN25-PN160 with broad temperature range, meeting pipeline control requirements across different sectors including petroleum, chemical, power, metallurgy, pharmaceutical, food processing, and general industry. The valve can be equipped with various drive types including manual handwheel, gear operator, pneumatic actuator, or electric actuator for flexible and convenient operation. The self-sealing design provides significant advantages in high-temperature high-pressure applications and conditions requiring frequent maintenance.