The 231D Series Large-Orifice 2-Position 3-Way Solenoid Valve is a semi-direct lift driven control valve engineered and highly customized for medium-to-high flow pipeline precision switching, fluid diverting, and mixing control systems. Covering a size spectrum from DN15 to DN25, this series boasts a robust structural profile and fully complies with high-precision G thread and NPT thread connection standards, greatly facilitating quick on-site assembly and seamless adaptation within diverse international piping networks. Utilizing an advanced semi-direct acting actuation mechanism, the valve achieves zero-pressure starting, delivering exceptional responsiveness and ultra-high reliability across a wide pressure range from 0 to 10 bar. Built with high-quality SS304 stainless steel, the valve bodies ensure universal compatibility with water, liquids, and gases. Its unique 2-position 3-way directional design provides perfect fluid direction switching, splitting, or combining, making it an ideal control component for modern automated fluid integration equipment.

Product Image:231D Large Orifice 2-Position 3-Way Solenoid Valve

Feature

Semi-Direct Lift & Zero-Pressure Start: Designed with an advanced semi-direct acting structural geometry, this valve holds the core technical edge of zero differential pressure starting. Even in conditions with completely absent pipeline pressure or ultra-low pressure differentials, it carries out clean, instantaneous open, close, or switching strokes, fundamentally resolving the technical pain points of conventional pilot-operated valves that experience operational delays or fail to open under low pressure.

2-Position 3-Way High-Efficiency Switching: Functioning as a large-orifice 2-position 3-way control valve, it features three independent ports to achieve rapid fluid direction switching, diverting, or mixing based on control system signals. The internal flow paths are optimized via fluid dynamics to maintain massive volumetric flow and ultra-low flow resistance even under large nominal diameters.

Premium Stainless Steel Robust Body: The entire valve body is precision-crafted from high-density SS304 stainless steel, offering outstanding mechanical strength and excellent wear resistance. It delivers premium corrosion and rust resistance against industrial water, neutral gases, and mildly corrosive fluid media, effectively preventing secondary media contamination.

Dual Threads for Seamless Matching: Full compliance with internationally accepted G parallel pipe threads and American NPT tapered pipe thread standards allows the compact structural components to perfectly match with domestic and global industrial automation loops and modular piping layouts.

All-Weather Wide-Temperature Endurance: With an operational range from -10 to 80 ℃, the specialized internal elastomeric seals maintain excellent physical elasticity and anti-fatigue service life under continuous high-frequency operations or severe pressure differential impacts, securing long-term leak-proof integrity.