The RSP series 2/2-way solenoid valve is a high-performance direct-acting or semi-direct-acting shut-off valve designed for industrial automation, fluid control systems, and mechanical equipment integration. The series offers two standard configurations: Normally Closed (NC) and Normally Open (NO).Normally Closed (NC): Energized to open; de-energized to close. Ideal for safety applications where fluid flow must be automatically cut off upon power loss to prevent overflow or leakage.Normally Open (NO): Energized to close; de-energized to open. Ideal for applications requiring continuous flow or cooling circuits that must remain open during power failure.The RSP series features zero differential pressure start-up capability, enabling rapid on-off control even in zero-pressure pipelines, gravity-fed systems, or ultra-low pressure environments. Valve bodies are constructed from precision brass, SS304 stainless steel, or high-strength engineering plastic. Paired with high-performance, low-power coils, they operate stably at working pressures from 0 to 16 bar (depending on the model), ensuring zero-leakage blocking for water, air, neutral gases, and low-viscosity fluids.

Product Image:RSP 2-Way 2-Position (Normally Open) Solenoid Valve

Zero-Pressure Startup: Direct-acting or semi-direct-acting diaphragm structure – electromagnetic force directly drives the plunger without relying on medium pressure differential.

Two Operating Modes: NC ensures safe shut-off on power loss; NO ensures continuous flow on power loss.

Compact & Fast Response: Light moving parts and short stroke enable millisecond response times, ideal for high-frequency dosing and mixing.

Excellent Material Compatibility: Seals/diaphragms available in NBR, EPDM, or VITON – wear-resistant, anti-aging, and chemically stable.

Low Power Consumption & High Safety: Precision coil with low heat generation; spade, lead wire, or DIN connector options.

Structure Diagram:RSP 2-Way 2-Position (Normally Open) Solenoid Valve

Material List

Flow Curve Chart

Specification Sheet

Note: The table shows standard coil AC220V with G thread interface. Sealing material: blank for NBR, E for EPDM, V for VITON. When using ES coil solenoid valve, EPDM or VITON seals can be selected, but fluid temperature must be ≤80℃. Max working pressure applies to air, gas, water, hot water, liquid, light oil.

Outline Diagram:RSP 2-Way 2-Position (Normally Open) Solenoid Valve

Outline Dimension Table   （Unit:mm）