2P Series Fluid Solenoid Valve | 2/2 Way

2P Series 2/2 Way Direct-Acting Fluid Control Valve | Plastic Mini Solenoid Valve

Brand: SOLH by Richge Technology

1. Product Definition & Working Principle

     The SOLH 2P series is a 2/2 way direct-acting normally closed mini fluid solenoid valve made of high-strength engineering plastic. It supports zero differential pressure startup (0MPa operable) and is designed for on-off control of compressed air, water and thin oil. Widely applied in automated water circuits, pneumatic circuits and vacuum loops, it features compact size, fast response and excellent media compatibility, serving as an economical and reliable miniature fluid control solution.

  1.1 Core Working Principle

     • Power-off Normally Closed (NC) State: The spring presses the valve core to fully block the flow channel, cutting off all medium flow.

     • Power-on Opening State: Electromagnetic force lifts the valve core upward to open the flow channel and allow medium circulation.

     • Automatic Reset: The spring instantly resets and closes the valve once power is cut off, ensuring safe and stable cut-off performance.

2. Complete Model Coding Rules & Order Examples

  1. Full Coding Logic: 2P025 - Thread Port - Wiring Suffix - Voltage

  2. Standard Order Example

     2P025-08W-DC24V: G1/4 thread port, wire lead outlet, DC 24V, normally closed 2-way mini fluid valve

3. Core Technical Parameters

4. Product Core Advantages

     • Zero Pressure Startup：Fully operable at 0MPa zero pressure, perfectly solving the startup limitation of pilot-operated valves that require differential pressure.

     • Mini Lightweight Design：Compact plastic body with small footprint, ideal for narrow installation spaces and integrated module assembly.

     • Premium Corrosion Resistance：Standard VITON fluororubber sealing delivers excellent water, oil and weak corrosion resistance, adapting to pure water, air compressor drainage and cooling water circuit scenarios.

     • High Environmental Adaptability：IP65 coil protection grade, dustproof and waterproof, stable operation available in humid working conditions.

5. Typical Application Scenarios

  5.1 Pneumatic Control Scenarios

     • Air source on-off control for vacuum generators

     • Air source switch for small pneumatic cylinders

  5.2 Fluid Control Scenarios

     • Miniature water cooling circuits and automated spraying equipment

     • Water purification equipment and air compressor automatic drainage systems

  5.3 Industrial Equipment Matching

     • Food processing machinery and small injection molding machine water circuits

     • Automated humidification and micro fluid control systems

6. 2P vs 2V Series Comparison | Professional Selection Guide

7. Supporting Matching Accessories

     • Air Source Treatment: Equip AF/AW series air filter regulator at the front end to purify air source and stabilize working pressure.

     • Vacuum System Matching: Cooperate with ZU straight-tube vacuum generators to realize reliable vacuum circuit on-off switching.

     • Pipeline Connection: Match KQ2 series male thread quick-connect straight fittings for fast, convenient and leak-free pipeline installation.

One Sentence Summary

     The SOLH 2P series mini plastic solenoid valve features zero-pressure startup, compact lightweight structure and IP65 protection, providing economical, stable and high-efficiency small-flow fluid on-off control for automated pneumatic, water and vacuum systems.