The RSP-JF series (DN15-DN50) 2/2-way flanged solenoid valve is an industrial-grade automated shut-off valve designed for general industrial fluid pipelines and high-pressure, large-flow automated control systems. Configured as a normally closed (NC) valve, its core operational sequence is "opens when energized, closes when de-energized." This series utilizes a heavy-duty pilot-operated diaphragm structure, relying on the fluid's own differential pressure to assist main valve orifice actuation, exhibiting superb switching reliability and tight shut-off performance across a nominal pressure spectrum of 0.3 to 16 bar. The entire series features valve bodies precision-cast from premium SS316 stainless steel, fitted with standard industrial flanged connections. Widely applied in water treatment, chemical processing, food machinery, pharmaceuticals, HVAC, and light industrial automation networks, it operates stably under working temperatures from -20°C to 65°C. Paired with a precision-engineered high-return spring and a heavy-duty electromagnetic coil, it delivers zero-leakage, tight isolation and remote automated control for water, liquids, gases, and light oils (≤20cst).

Product Image:RSP Flanged Solenoid Valve

Feature

Pilot-operated Design for Enhanced Pressure Limits: Utilizing a matured pilot diaphragm configuration that leverages the fluid's own pressure drop to assist main valve opening and closing. The coil maintains a low power draw while delivering rapid, highly sensitive actuation under high differential pressures from 0.3 to 16 bar, seamlessly balancing high nominal pressure with heavy-flow control.

SS316 Stainless Steel Enclosure with Superb Corrosion Resistance: The valve body and essential metallic internals are manufactured from premium SS316 stainless steel, rendering exceptional resistance to corrosion and wear. It is ideal for industrial lines with complex fluid properties, slightly corrosive chemical liquids, and sanitary applications requiring high media purity.

CFD-Optimized Fluid Channels & High Flow Rates: The internal flow channels across the DN15 to DN50 size bracket are precisely optimized via Computer Fluid Dynamics (CFD) simulation to ensure ultra-high Cv coefficients. The geometry yields minimal flow resistance and low pressure drops, perfectly meeting the rapid cut-off needs of medium-to-large capacity pipelines.

High-Return Positive Shut-off & Zero Leakage: Featuring high-elasticity, fatigue-resistant stainless steel springs paired with a precision-machined linear valve seat. Complemented by an anti-sediment, wear-resistant thickened diaphragm design (elastomer options: premium elastomeric compound), it provides impeccable sealing integrity when de-energized, attaining complete zero leakage.

Modular Bonnet Design & Inline Easy Maintenance: Adopting a classic 4-bolt split bonnet structure. Routine maintenance, internal cleaning, or replacement of the diaphragm, spring, and core can be executed online without cutting or removing the valve body from the flanged pipe layout, significantly lowering factory downtime.