High quality ball valves provided by Guangdong Jinqiu Valve Technology Co., LTD., a professional valves manufacturer in China. We use precision manufacturing technology and high-quality materials, applied to petroleum, chemical, electric power, pharmaceutical, water treatment and other industries, in high, medium and low pressure conditions to provide stable opening and closing and flow regulation.
Critical Performance Characteristics
1. Zero-Leakage Soft & Hard Seal Options: The ball valve utilizes a floating or fixed ball design with a 90° rotary operation. The seat is precision-machined using PTFE, RPTFE, or advanced metal alloys, ensuring an airtight seal that meets API 598 and ANSI B16.34 standards. The sealing capability inherently increases with the rise in medium pressure, maintaining integrity in water, oil, gas, and acidic media.
2. Minimal Fluid Resistance & High Flow Capacity: Featuring a full-bore, straight-through flow channel, the ball valve provides the lowest fluid resistance among all valve types. The streamlined flow path prevents medium deposition and blockage, making it highly efficient for viscous fluids, slurries, and pipelines requiring regular pigging operations.
3. Certified Extreme Condition Performance: The valve body, constructed from WCB carbon steel, CF8/CF8M stainless steel, or specialized lined materials, can withstand pressures from PN1.6 to PN42.0 MPa. Engineered with high-temperature resistant sealing materials and fire-safe/anti-static designs, it safely operates in extreme thermal cycling and explosive environments.
4. Maintenance-Optimized & Anti-Blowout Design: The valve adopts a bottom-entry or two-piece/three-piece structure for easy disassembly and seat replacement. The stem features an anti-blowout structure with a thrust bearing to reduce operating torque, combined with a PTFE packing assembly that ensures long-term stem sealing without frequent adjustments, extending the service life significantly.
5. Application-Specific Flow Geometry:
Standard Full-Bore: Provides zero-pressure-drop shut-off in straight pipe sections, ideal for main pipelines.
V-Port Ball: Features a V-shaped notch for precise linear flow regulation and excellent shearing action, effectively cutting through fibrous or slurry media.
Lined Ball Valve: Utilizes F46 (FEP) lining technology to provide superior corrosion resistance for handling strong acids and alkalis at temperatures up to 150℃.
6. Rated Load Drive System: Manual operation utilizes a lightweight, ergonomic lever or gear operator for smooth 90° quarter-turn actuation. The automatic version includes ATEX/IECEx certified pneumatic and electric actuators with IP67/IP68 protection. The system supports 4-20mA intelligent positioning and emergency fail-safe mechanisms compliant with industrial safety standards.
Applications
Oil & Gas: Long-distance pipelines, refineries, and high-pressure natural gas networks.
Chemical & Pharma: Corrosive fluid control, high-purity water, and aggressive chemical processing.
Power Plants: Cooling water systems, steam lines, and high-temperature thermal oil circuits.
Water Treatment: Municipal water supply, wastewater management, and desalination plants.
Installation and Maintenance Precautions:
1. Ball valves can generally be installed in any position on the pipeline, but vertical installation with the actuator facing upwards is recommended for optimal performance.
2. Handwheels, handles, and pneumatic/electric actuators are strictly prohibited from being used as lifting points for the valve or pipeline.
3. Before installation, ensure the pipeline is clean and free of debris to prevent damage to the sealing surfaces during the 90° rotation.
